JP2003107659A - Image forming device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve working efficiency by easily and efficiently performing work for eliminating jamming or the like in a comparatively short time. SOLUTION: A movable frame 17 capable of moving to open toward the outside is attached to the inside of a housing 12, and a carrying path is constituted between a fixed frame 15 and the movable frame 17. Members 25A, 25B, 27 and 29 set in a carrying feasible state when the frame 17 is closed, and constituting the carrying path when the frame 17 is moved to open toward the outside are separated and opened wide so as to easily take out jammed image receiving material 36.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention carries out a heat development transfer process by heating a photosensitive material and an image receiving material wound in a roll along a conveying path while superposing them. The present invention relates to an image forming apparatus.

[0002]

2. Description of the Related Art Generally, an image forming apparatus of a laser exposure heat development transfer system (silver salt photographic system) is used.

In a conventional laser exposure heat development transfer type image forming apparatus, an output print is obtained by the following processing steps. First, in the exposure processing step, an input signal of image data is subjected to image processing by the CPU, and this image processing signal is sent to the semiconductor unit.

Inside the main body of the image forming apparatus, a donor wound in a roll shape and an image receiving paper wound in a roll shape are housed in a paper magazine whose inside is shielded from light. It is loaded with.

In this image forming apparatus, each time the process for producing an output print is executed, the donor roll wound in a roll shape in the magazine is pulled out by a predetermined length onto the conveyance path and cut into a predetermined size by a cutter. The donor piece, which is a photosensitive material, is made to pass between the two guide plates by rolling the carrying roller while sandwiching the donor piece by a pair of carrying rollers configured on the carrying path. And conveys it to the semiconductor unit.

In this semiconductor unit, a laser (LD) light source is used to simultaneously perform scanning exposure processing of three colors on the exposed surface of the donor piece being conveyed at a predetermined speed. By this scanning exposure process, the silver halide in the donor piece as a light-sensitive material reacts with the light source to form a latent image.

The donor piece on which the latent image is formed is
The latent image of the donor piece is uniformly formed in a small amount of water heated to a predetermined temperature by being conveyed to the next liquid application step through a predetermined conveyance path by being conveyed by the conveyance roller between the two guide plates. After being applied on the above-mentioned surface, it is sent by a carrying roller between the two guide plates so that it is sent to the next heat development and color image transfer step through a predetermined carrying path.

Further, in this image processing apparatus, the image receiving material (O is drawn out from the image receiving paper roll wound in a roll shape by a predetermined length onto the conveying path and cut into a predetermined size by a cutter.
The image receiving paper piece (which may be an HP film or the like) is rolled between the two guide plates by rolling the image receiving paper piece while sandwiching the image receiving paper piece with a pair of conveying rollers configured on a bent conveying path. To the heat development and color image transfer steps.

In this heat development and color image transfer step, the donor piece coated with water as the image forming solvent and the image receiving paper piece are laminated and bonded to each other on the heating drum and the outer periphery of the heating drum. It is heated by a heating device composed of an endless pressure welding belt which is pressed and rotates together with a heating drum.

The heating drum is driven to rotate by a motor and its outer peripheral surface is uniformly heated by a heater. Then, in this heating drum, between the bonding roller that is in rolling contact with the outer peripheral surface on the upstream side in the transport direction,
The donor piece and the image receiving paper piece are laminated and sandwiched to be bonded.

In this state, the donor piece and the image receiving paper piece, which are closely wound around the outer peripheral surface of the heating drum, are developed and transferred while being nipped and conveyed between the heating drum and the endless press belt. As a result, as the development proceeds on the donor piece side, the dye of the donor piece is transferred and fixed on the image receiving paper piece, the image of the donor piece is transferred to the image receiving paper piece, and a predetermined image is formed (recorded) on the image receiving paper piece.

By the rotation of the heating drum, the used donor piece conveyed to the peeling position on the downstream side in the conveying direction on the heating drum is peeled from the heating drum by the peeling claw for donor and then conveyed by the conveying roller and the conveying guide. It is then discharged onto the discard tray.

At the same time, the image-receiving paper piece completed as a high-quality color print that has been conveyed to a position further downstream in the conveying direction of the heating drum is separated from the heating drum by the image-receiving paper separating claw and then is conveyed to the conveying roller. It is transported by the transport guide and sent out onto the stacking tray.

[0014]

In the conventional image forming apparatus as described above, a donor piece and an image receiving paper piece are sandwiched by a pair of conveying rollers formed on a conveying path having curved portions. By rolling the carrying roller, the donor piece and the image receiving paper piece are configured to pass between the two guide plates, and are guided and carried to each processing step.

Therefore, the donor piece or the image receiving paper piece may cause so-called paper jam (jamming, abbreviated as jam) during the operation of carrying on the carrying path. Such jamming of the donor piece or the image receiving paper piece is a phenomenon that tends to occur when the sheet-shaped material is guided and conveyed by the conveying roller and the guide plate.

In the conventional image forming apparatus, when jamming occurs when the donor piece or the image receiving paper piece is conveyed on the conveying path, the lid of the image processing apparatus main body is first opened to perform the heat development and the color image formation. The transfer portion is pulled out of the apparatus main body, the bonding roller that is pressed against the outer peripheral surface of the heating drum with a strong force is separated or the separation claw is separated, or the guide plate that constitutes the transport path is removed to jam the donor piece or Remove the image receiving paper piece to eliminate jamming.

If the jammed donor piece or image receiving paper piece cannot be taken out as described above, the jammed donor piece or image receiving paper piece can be removed by reversing each conveying roller or heating drum by a motor or manually. To eliminate jamming.

In such a conventional image processing apparatus, there is a problem in that the work for eliminating jamming is extremely inefficient and the work for eliminating jamming takes time.

In view of the above facts, an object of the present invention is to newly provide an image forming apparatus configured to easily and efficiently execute a work for eliminating jamming in a relatively short time.

[0020]

In the image forming apparatus according to the first aspect of the present invention, the photosensitive material and the image receiving material that have been conveyed are superposed by a laminating roller inside the housing and the outer peripheral surface of the drum. An image forming apparatus for performing a heat development transfer process in a state of being pressed and wound onto a fixed frame fixed inside the housing so as to mount and hold internal equipment, and inside the housing, The movable frame is mounted so that it can be opened to the outside, and when the movable frame is inserted into the housing and closed, it is set to the transportable state and the movable frame faces the outside. Between the fixed frame and the movable frame so that the inner surfaces facing each other are widely opened by separating and separating from each other when they are moved to open. It characterized by having a a conveying path made.

With the above-described structure, in the case of performing the heat development transfer process in the image forming apparatus, the photosensitive material and the image receiving material are conveyed on the conveying path inside the housing and sent to the laminating roller, Here, a predetermined process is performed while being superposed by a laminating roller, pressure-bonded to the outer peripheral surface of the drum, wound, and conveyed. If a conveyance failure such as jamming occurs while the photosensitive material and the image receiving material are being conveyed, the movable frame is moved to the outside so that a portion between the fixed frame and the movable frame is provided on the conveying path. The members arranged so as to face each other are separated from each other and separated from each other, and the photosensitive material and the image receiving material jammed on the transport path are easily taken out in a state where the inner surfaces facing each other are widely opened. be able to.

The image forming apparatus according to claim 2 of the present invention is
The heat-development transfer process is performed in a state in which the photosensitive material and the image-receiving material that have been conveyed on the conveyance path set inside the housing are overlapped by the laminating roller and pressed against the outer peripheral surface of the drum and wound. In the image forming apparatus, at least a part of the conveyance path is arranged on a movable frame movably mounted so as to open one movable side conveyance roller and one movable side guide plate toward the outside. , The other fixed-side transport roller and the other fixed-side guide plate are installed in a fixed frame that is fixed inside the housing so as to mount and hold internal equipment, and the movable frame is inserted into the housing and closed. When one is in use, one movable side transport roller and the other fixed side transport roller correspond, and one movable side guide plate and the other fixed side guide plate are also capable of carrying. When the movable frame is set so that the movable frame is moved toward the outside, one movable side conveyance roller and the other fixed side conveyance roller are separated from each other and separated, and one movable side guide plate And the other fixed side guide plate are separated from each other and separated so that the inner surfaces facing each other are widely opened.

With the above-mentioned structure, when the image forming apparatus carries out the heat development transfer process, the photosensitive material or the image receiving material is provided inside the housing with one movable side conveyance roller and the other fixed side conveyance roller. And the one movable side guide plate and the other fixed side guide plate are correspondingly set so that they can be conveyed and are conveyed to the laminating roller. Predetermined processing is performed while being superposed by a laminating roller, pressure-bonded to the outer peripheral surface of the drum, wound, and conveyed. If a conveyance failure such as jamming occurs while the photosensitive material and the image receiving material are being conveyed, the movable frame is moved to the outside so that one movable side conveyance roller and the other fixed side conveyance roller are moved. The rollers are separated from each other,
And the photosensitive material jammed on the conveying path with the photosensitive material jammed on the conveying path in the state where the inner surfaces facing each other are widely opened by separating one movable side guide plate and the other fixed side guide plate from each other. The material can be easily taken out.

According to a third aspect of the present invention, in the image forming apparatus according to the first or second aspect, the movable frame is detachably mounted from the housing, and the movable frame is placed on the floor. It is characterized in that a foot member is installed and configured.

With the above-mentioned structure, in addition to the function and effect of the image forming apparatus according to the first or second aspect, the movable frame is detached from the housing and placed on the floor such as a workplace with a foot rest member. In the state of being placed, the work such as maintenance, repair or adjustment of the device attached to the movable frame can be performed, so that the work efficiency can be improved.

According to a fourth aspect of the present invention, in the image forming apparatus according to any one of the first to third aspects, the drum for performing the heat development transfer process is arranged on the movable frame side and the bonding roller is fixed. It is characterized by being placed on the frame side.

With the above-described structure, in addition to the function and effect of the image forming apparatus according to any one of claims 1 to 3, jamming occurs when the photosensitive material and the image receiving material are being conveyed. When a conveyance failure such as that occurs, the movable frame is moved to the outside so that the drum for performing the heat development transfer process arranged on the movable frame side is moved from the laminating roller that is strongly pressed against each other. Since they are separated automatically, the photosensitive material and the image receiving material sandwiched between them can be easily taken out. Also, when the movable frame is inserted into the housing and closed to put it in use, the bonding roller is set so that it is automatically and strongly pressed against the drum that performs the heat development transfer process. Can be improved.

According to a fifth aspect of the present invention, in the image forming apparatus according to any one of the first to fourth aspects, the drum for performing the thermal development transfer process is arranged on the movable frame side and is superposed by a laminating roller. In addition, a peeling claw mechanism for peeling the photosensitive material and the image receiving material, which have been subjected to heat development transfer processing in a state of being pressed and wound around the outer peripheral surface of the drum, from the outer peripheral surface of the drum, is arranged on the fixed frame side. And

With the above-mentioned structure, in addition to the function and effect of the image forming apparatus according to any one of claims 1 to 4, jamming occurs when the photosensitive material and the image receiving material are being conveyed. If a transport failure such as
By moving the movable frame toward the outside, the drum for heat development transfer processing arranged on the movable frame side is automatically separated from the peeling claw mechanism. Can be taken out easily.

According to a sixth aspect of the present invention, in the image forming apparatus according to the fifth aspect, the peeling pawl mechanism is detachably mounted from the fixed frame, and the mounting pawl for placing the peeling pawl mechanism on the floor surface. It is characterized in that members are installed and configured.

With the above-described structure, in addition to the function and effect of the image forming apparatus according to the fifth aspect, the peeling claw mechanism is removed from the fixed frame and placed on the floor such as a workplace with a foot rest member. In the state, maintenance of the peeling claw mechanism,
Work efficiency such as repair or adjustment can be improved.

The image forming apparatus according to claim 7 of the present invention is
To convey the photosensitive material and the image receiving material, which have been conveyed on the conveying path set inside the housing, by a belt support mechanism in a state where they are superposed by a laminating roller and wound around the outer peripheral surface of the drum. Thus, in the image forming apparatus that performs the heat development transfer process, the movable frame mounted inside the housing so as to be movable toward the outside, and the drum and the belt support mechanism arranged on the movable frame are movable. And a jamming canceling means for the heat development transfer unit, which is configured to discharge the photosensitive material and the image receiving material to the outside by performing a conveying operation in conjunction with a moving operation of opening the frame to the outside. Characterize.

With the above-described structure, when a conveyance failure such as jamming occurs while the photosensitive material and the image receiving material are being conveyed, the drum arranged on the movable frame and the belt support mechanism are The jamming releasing means for the heat development transfer unit causes the photosensitive material and the image receiving material to be discharged to the outside by performing the conveying operation in conjunction with the movement operation of opening the movable frame toward the outside, so that the drum and the belt support. The light-sensitive material and the image-receiving material existing between the mechanism and the mechanism can be easily taken out.

[0034]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of an image forming apparatus of the present invention will be described below with reference to FIGS. FIG. 1 shows a schematic overall configuration of the image forming apparatus according to the embodiment.

Inside the housing 12 of the image forming apparatus 10 shown in FIG. 1, a photosensitive material magazine 14 for accommodating a photosensitive material (donor) 16 can be attached to and detached from a lower portion of the housing 12 on the right side of the drawing. Is loaded into.

Further, in the image forming apparatus 10, a fixed frame 15 is fixedly installed inside the housing 12 in order to mount and hold internal equipment, and the housing 12 is also provided.
The movable frame 17 is attached so that it can be moved from the inside to the outside.

The fixed frame 15 is composed of a single member or a plurality of members as a whole, and is installed immovably with respect to the housing 12.

Further, the movable frame 17 is mounted so that the internal equipment attached to the movable frame 17 can be pulled out from the inside of the housing 12 to the outside. For this reason, in the present embodiment, the housing 12 is configured so as to be rotatable and detachable.

As shown in FIG. 2, the fixed frame 15 is provided with an accommodating portion 19 that forms a substantially trapezoidal space into which the movable frame 17 fits without a gap on the upper left side of the drawing.

Further, a predetermined portion of the inner peripheral edge portion of the housing 12 of the movable frame 17 is formed in a shape matching the outer peripheral edge portion of the accommodation portion 19 of the fixed frame 15 corresponding thereto.

In the movable frame 17, the movable frame 17 is inserted in the housing 12 shown in FIG. Shaft support 2 formed in the groove that opens to the outside
1 is set.

In the housing 12, a shaft support pin 23 is erected on a fixing member (not shown) of the housing 12 at a position corresponding to the shaft support 21 on the lower side in the drawing of the housing 19. Install in.

The shaft support pin 23 on the housing 12 side
Is inserted to the groove bottom of the shaft support portion 21 of the movable frame 17,
The movable frame 17 is supported around the pivot pin 23 so as to be rotatable between the closed state of FIG. 1 and the open state of FIG.

Further, when the movable frame 17 is rotated to the state shown in FIG.
2 by pulling out 3 to separate the movable frame 17 from the housing 12 to make it removable, and inserting the removed movable frame 17 into the groove bottom of the shaft supporting portion 21 of the shaft supporting pin 23. The movable frame 17 can be returned to the state in which it is pivotally supported by the pivot pin 23.

A lock device (not shown) for engaging and holding the movable frame 17 in the closed state of FIG. 1 is attached to the movable frame 17. Furthermore, when the movable frame 17 is detached from the image forming apparatus 10,
In order that the movable frame 17 can be stably placed on the floor without being damaged by the internal equipment attached to the movable frame 17, the foot is placed at each predetermined position on the outer side of the movable frame 17. The member 31 is installed.

As shown in FIG. 1, the photosensitive material 16 pulled out from the photosensitive material magazine 14 loaded in the image forming apparatus 10 has a transport path set so as to be transported upward in FIG.

A nip roller 18 and a cutter 20 are attached to a fixed frame 15 in the vicinity of the photosensitive material take-out port on the conveying path starting from the photosensitive material take-out port of the photosensitive material magazine 14, and the photosensitive material magazine 54 to the photosensitive material 56 are provided. After performing the exposure process while pulling out, it is configured so that it can be cut into a predetermined size. The cutter 20 is, for example, a rotary type cutter including a fixed blade and a movable blade, and is configured to cut the photosensitive material 16 by moving the movable blade with a rotating cam or the like to be engaged with the fixed blade.

An exposure device 22 that scans and exposes an image on the photosensitive (exposure) surface of the photosensitive material 16 while pulling out the photosensitive material 56 from the photosensitive material magazine 54 is provided on the downstream side of the cutter 20 in the transportation direction on the transportation path. , Is attached to the fixed frame 15 and arranged. The exposure device 22 is configured to scan and expose the photosensitive material 16 with a laser exposure unit based on an image signal processed by a scanner or the like (not shown).

On the downstream side of the exposure device 22 in the conveying direction, the turn portion 2 for changing the conveying direction of the photosensitive material 16 to the horizontal direction.
4 is attached to the fixed frame 15 and arranged, and the liquid application part 26 is attached to the fixed frame 15 and arranged on the downstream side in the transport direction.

The liquid applying section 26 sets a curved conveying path so as to be convex downward, and therefore a tray 28 having a curved bottom surface for containing the image forming solvent and a guide having an arc-shaped guide surface are formed. And a member 30.

Then, by exposing the guide surface of the guide member 30 in the tray 28, a passage for the photosensitive material 16 in the shape of an arc filled with liquid is formed between the curved bottom surface and the guide surface. It is configured such that water as an image forming solvent can be filled in a curved passage that is convex downward.

When the photosensitive material 16 passes through the curved passage, the liquid applying section 26 immerses the photosensitive material 16 in water, and the squeeze roller 32 disposed at the outlet in the passage removes excess water. After being squeezed, the photosensitive material 16 is sent out to the heat development transfer section 34 arranged on the downstream side in the conveying direction.

As shown in FIG. 1, a receiving material magazine 38 accommodating the image receiving material 36 wound in a roll is arranged on the lower left side of the drawing inside the housing 12.
A dye fixing material having a mordant is applied to the image forming surface of the image receiving material 36.

A nip roller 40 and a cutter 42 are attached to the fixed frame 15 in the vicinity of the image receiving material taking-out port on the conveying path starting from the image receiving material taking-out port of the receiving material magazine 38. The nip roller 40 is used for the image receiving material 36.
Is nipped and pulled out from the receiving material magazine 38, and the nip can be released.

Further, the cutter 42 arranged on the downstream side of the nip roller 40 is constituted as a rotary type cutter composed of, for example, a fixed blade and a movable blade, similarly to the cutter 20 for the photosensitive material 16 described above, and is provided from the receiving material magazine 38. The drawn image receiving material 36 is configured to be cut into a length shorter than the photosensitive material 16.

The image receiving material 36 cut into a predetermined length in this way is on the conveying path for the image receiving material 36 from the take-out port of the receiving material magazine 38 to the laminating roller 50 located at the inlet of the heat development transfer section 34. Is transferred to the heat development transfer section 34.
Sent to.

The conveyance path for the image receiving material 36 is such that a plurality of sets of a pair of conveyance rollers 25A and 25B are arranged with a space between each pair of the conveyance rollers 25A and 25B. Two guide plates 27 and 29 are arranged in parallel in the space between the sets with a predetermined narrow space therebetween, and the pair of transport rollers 25A and 25B sandwich the image receiving material 36, and the pair of transport rollers 25A and 25B.
By rolling the image receiving material 36, the image receiving material 36 is guided and conveyed so as to pass through the space between the two guide plates 27 and 29.

At the same time, the conveying path for the image receiving material 36 is the peripheral portion of the movable frame 17 on the inner side of the housing 12 and the corresponding storage portion 1 of the fixed frame 15.
9 (shown in FIG. 2) along the portion that matches the outer peripheral edge.

Further, the pair of conveying rollers 25A and 25B constituting the conveying path for the image receiving material 36 and the two guide plates 27 and 29 are composed of one movable side conveying roller 25A and one movable side guide, respectively. The plate 27 and the movable frame 1
7 on the other side, and each of the other fixed-side transport rollers 25
B and the other fixed side guide plate 29 are arranged on the fixed frame 15.

By constructing the transport path for the image receiving material 36 as described above, when the movable frame 17 is brought into the open state shown in FIG. 2, the movable frame 17 and the movable transport roller 25A and the movable guide plate 27 are arranged. Move away from the fixed-side transport roller 25B fixed to the fixed frame 15 and the fixed-side guide plate 29 to an open state. Further, when the movable frame 17 is in the closed state shown in FIG. 1, the pair of transport rollers 25A and 25B are combined so as to come into pressure contact with each other, and the two guide plates 27 and 29 are parallel to each other with a predetermined narrow space therebetween. And are operative to form a transport path for the image receiving material 36.

As shown in FIGS. 1 to 3, the thermal development transfer portion 34 is constructed as a so-called thermal development drum. The drum 48 for heat development is mounted so that it can be rotationally driven and controlled by a motor (not shown). A heater such as a heating lamp (not shown) is arranged inside the drum 48, and the heater is configured to raise the outer peripheral surface portion of the drum 48 to a predetermined processing temperature.

The laminating roller 50 is disposed so as to be in rolling contact with the outer peripheral surface of the drum 48 at a predetermined position which is an entrance of the heating and conveying path. As shown in FIG. 1, the bonding roller 50 is arranged on the outer peripheral surface portion of the drum 48 at a position aligned rightward and laterally of the drum 48 so that the height positions of the respective rotation axes are substantially equal. The bearing portion 15 of the fixed frame 15 should be crimped with a predetermined strong crimping force.
Attach to A.

As shown in FIG. 1, the laminating roller 50 has an exit of the above-mentioned aperture roller 32 and the image receiving material 36.
It is located directly above the downstream exit of the transport path for the. Then, the bonding roller 50 bonds the photosensitive material 16 sent from the squeezing roller 32 side and the image receiving material 36 sent from the downstream exit of the conveying path for the image receiving material 36 to the drum 48 by aligning the leading end portions. It is sandwiched between the alignment roller 50 and the pressure roller, and is pressed onto the outer peripheral surface of the drum 48, and is then fed out.

As shown in FIG. 3, on the outer peripheral portion of the drum 48, an end is formed in the vicinity of the upper side of the laminating roller 50 in the figure and is wound around the drum 48 to reach the vicinity of the downstream side outlet of the conveying path for the image receiving material 36. Extensive drum 48 over the entire circumference up to
The belt support mechanism 52 is attached corresponding to the heating area of.

The belt support mechanism 52 is used for the drum 4
The photosensitive material 16 and the image receiving material 36, which are sent out in a state of being bonded to the outer peripheral surface of the drum 8, are held and conveyed so as not to come off the outer peripheral surface of the drum 48 and are conveyed. For this reason, the belt support mechanism 52 uses the endless belt 54 with a plurality of rollers 56, 5.
6A, 56E, 56T, 56AE, and is configured to move the endless belt 54 by a belt drive mechanism in synchronization with the rotation of the drum 48 while pressing a predetermined portion of the endless belt 54 against the outer peripheral surface of the drum 48. .

In this belt drive mechanism, as shown in FIG. 5, an output gear 43 fixed to the output shaft of the drive motor 41 is provided with an output gear 49 via a first intermediate transmission gear 45 and a second intermediate transmission gear 47. Utilizing a gear train mechanism that is meshed and connected,
The rotation output of the drive motor 41 is reduced to reduce the output gear 49.
3 and, as shown in FIG. 3, the end side roller 56E is rotated by the rotational driving force of the output gear 49, whereby the endless belt 54 wound around the end side roller 56E,
It is driven so as to move in synchronization with the rotating operation of the drum 48 for heat development.

As shown in FIG. 3, the belt support mechanism 5
2 can expose and open a predetermined range on the downstream side in the transport direction from the bonding roller 50 in the drum 48,
A part of the endless belt 54 wound around the drum 48 is configured to be retractable.

Therefore, in the belt support mechanism 52, the predetermined five rollers 56A and 56AE are moved by the moving operation member 5.
Attached to 8 to configure. The movement operating members 58 are formed in a substantially fan shape, are arranged on both lateral end surface portions of the drum 48, and are mounted so as to be rotatable by a predetermined angle around the rotation axis of the drum 48.

The moving operation member 58 has an output gear of a gear train mechanism 55 which is interlocked with an output shaft of a drive motor 53 as a driving operation means for the moving operation member, in a gear portion 51 formed in an arcuate outer peripheral portion thereof. The drive force of the drive motor 53 allows the rotary operation to be performed.

Each movement operating member 58 has an arcuate outer peripheral portion extending outward from the outer periphery of the drum 48, and rollers 56A and 56AE are respectively provided at predetermined five locations on the extended outer peripheral portion. The ends are pivoted. That is, the five rollers 56 are provided between the movement operation members 58 on both sides.
A and 56AE are axially arranged so as to bridge each.

The endless belt 54 is wound around the first roller 56AE of the moving operation member 58 which is closest to the bonding roller 50 so as to be folded back.

The belt support mechanism 52 includes the endless belt 5 pulled out from the fifth roller 56A, which is the fifth roller 56AE from the first roller 56AE of the movement operating member 58.
4 is wound so as to be folded back to the end side roller 56E closest to the laminating roller 50 (a roller that corresponds to the end opposite to the first roller 56A and is also used for driving the endless belt 54). As a result, the first roller 56
The endless belt 54 is wound around the drum 48 with the AE and the end side roller 56E as both ends.

The belt support mechanism 52 is configured such that the tension of the endless belt 54 wound around the drum 48 is increased by the three rollers disposed downstream of the fifth roller 56A in the conveying direction among the plurality of rollers around which the endless belt 54 is wound. Constitutes a tension holding mechanism having a function of holding.

In this tension holding mechanism, the rollers 56, which correspond to both ends of the three rollers, are arranged at fixed positions on a fixed frame (not shown) as guide rollers, and the central roller is constituted as the tension holding roller 56T. To do.

The tension holding roller 56T is mounted on a pedestal 60 which is movable with respect to the fixed frame. A tension coil spring 62 is stretched between the pedestal 60 and the fixed frame. As a result, the endless belt 54 is pulled by the tension coil spring 62 via the tension holding roller 56T, thereby giving tension to the entire endless belt 54 and stretching the entire endless belt without slack, and a part of the endless belt 54. Press against the drum 48.

Further, in this belt support mechanism 52,
When the movement operation member 58 is rotated by the movement operation member drive operation means in order to operate the portion of the endless belt 54 wound around the drum 48 on the first roller 56AE side to the retracted state shown in FIG. 4, The endless belt 54 is folded back by the fifth roller 56A, which is the fifth roller 56AE from the first roller 56AE in the movement operation member 58.

In this way, when the moving operation member 58 is operated by the moving operation member drive operation means and is rotated by a predetermined angle in the direction of arrow A from the state shown in FIG. 3 to the state shown in FIG. 56A of the endless belt 54 is wound around the endless belt 54 so that a part of the endless belt 54 is folded back in a U shape.
Suppress short fluctuations in the total length of the path. Further, in this operation as well, the biasing force of the tension coil spring 62 acts via the tension holding roller 56T, so that the endless belt 54 can be held in a tightly stretched state over the entire circumference.

That is, the plurality of rollers 56, 56A, 5
The endless belt 54 that is wound around 6E, 56T, and 56AE and travels on a predetermined path does not change the entire length of the path of the endless belt 54 due to the movement of the tension holding roller 56T even if the movement operation member 58 moves. While being absorbed, the tension coil spring 62 applies a required tension to the entire endless belt 54.

Therefore, the plurality of rollers 56, 56A, 56
Endless belt 54 wrapped around E, 56T, 56AE
Are held so as to stably travel on a predetermined path.

As shown in FIG. 4, a peeling claw mechanism 70 is attached to the heat development transfer section 34 near the bonding roller 50.

As shown in FIG. 7, the peeling claw mechanism 70 includes a deforming plate member 72 formed in a deformed plate shape, a peeling claw 64 for the photosensitive material 16, a peeling claw 76 for the image receiving material 36, and a paper discharge roller. The mechanism 78 is mounted so that the whole can be handled as an integral member.

In the peeling claw mechanism 70, the extended end portion of the deformable plate member 72 is axially attached to the fixed frame 15 of the heat development transfer portion 34 by a shaft pin 74, and the other end portion is peeled for the image receiving material 36. The claw 76 and the paper discharge roller mechanism 78 are arranged.

Further, in the peeling claw mechanism 70, both ends of the shaft pin 74 for axially mounting the deformable plate member 72 are detachably fastened to a fixed support member (not shown) on the fixed frame 15 side with screws or the like. It is configured so that it can be handled as an independent component when detached from the image forming apparatus 10.

When the peeling claw mechanism 70 is detached from the image forming apparatus 10 and placed on the floor surface 37 as an independent component, the photosensitive material 16 attached to the deformable plate member 72 is removed.
The peeling claw 64 for the image receiving member 36, the peeling claw 76 for the image receiving material 36, and the paper discharge roller mechanism 78 hit the floor surface 37 so that the peeling claw mechanism 70 can be stably placed on the floor surface 37 without being damaged. The foot member 39 is installed at each predetermined position on the outer surface side of the deformable plate member 72.

The peeling claw mechanism 70 has a retracting position shown in FIG. 3 and a peeling operation shown in FIG. 4 in relation to a moving operation of rotating the deformable plate member 72 around the shaft pin 74 by an operation mechanism (not shown). It is configured so that it can be moved between the time position and the time position, and it is possible to prevent the outer peripheral surface of the thermal development drum 48 from slidingly contacting and wearing.

As shown in FIG. 4, the peeling pawl 64 is in a state in which the peeling pawl mechanism 70 is moved to the position for the peeling operation and set.
On the outer peripheral surface of the drum 48, the photosensitive material 16 and the image receiving material 3
6 and 6 function as a claw for peeling and pulling out only the photosensitive material 16 when it is sent in a state of being bonded.

As shown in FIGS. 1 and 4, the thermal development transfer section 3
A sheet discharge roller portion 68 is attached to the sheet 4 adjacent to the bonding roller 50 to catch the photosensitive material 16 pulled out by the peeling claw 64 and send it to the discharge tray 66.

As shown in FIG. 4, in the peeling claw mechanism 70, the peeling claw 76 peels the image receiving material 36 wound around the drum 48 in accordance with the rotating motion of the drum 48 from the tip end of the peeling claw 76 during the peeling operation. The peeled image receiving material 36 is sent out to the image receiving material stocker 82 (shown in FIG. 1) by the sheet discharging roller mechanism 78, the plurality of conveying rollers 33 and the guide member 35 arranged adjacent to the sheet discharging roller mechanism 78. Configure as follows.

As shown in FIGS. 3 and 6, the image forming apparatus 10 is provided with a jamming canceling means for the heat development transfer portion. The jamming releasing means for this heat development transfer section is
By driving the belt drive mechanism in the belt support mechanism 52 in conjunction with the operation of rotating the movable frame 17 from the closed state in FIG. 1 to the open state in FIG. 2, the drum 48 for heat development and the belt support. The photosensitive material 16 and the image receiving material 36 between the mechanism 52 and the mechanism 52 can be discharged to the outside.

In order to configure the gear train mechanism of the jamming releasing means for the heat development transfer portion, an arc gear 57 is fixedly installed on the fixed frame 15 side as shown in FIG. The arc-shaped gear 57 has a gear formed on the outer peripheral portion of the arc. The gear of the outer peripheral portion of the arc-shaped gear 57 is configured such that the center of the radius of curvature of the arc is the center of the shaft support pin 23 which is the rotation center of the movable frame 17.

As shown in FIGS. 3 and 6, the arc-shaped gear 5
The small gear 61 of the intermediate transmission gear 59 meshes with the gear 7. This intermediate medium gear 59 has a small gear 61 and a large gear 63,
It is integrally formed in steps and is rotatably supported by a shaft pin 65 erected on the movable frame 17.

The large gear 63 of the intermediate transmission gear 59 meshes with the driven gear 67. The driven gear 67 is attached to the transmission main shaft 71 via the one-way clutch 69, and when rotating in a predetermined rotation direction (for example, counterclockwise direction), the driven gear 67 rotates integrally with the transmission main shaft 71 and the opposite direction ( For example, when rotating in the clockwise direction, it is configured to idle around the transmission main shaft 71.

The transmission main shaft 71 is connected to the output gear 49 of the belt drive mechanism shown in FIG. 5 so as to be able to transmit a rotational force (not shown). As a result, the rotational force transmitted from the jamming canceling means for the heat development transfer section through the transmission main shaft 71 rotates the output gear 49 and the end side roller 56E.
The endless belt 54 is moved in the normal conveying direction.

Then, by the operation of moving the endless belt 54 in the normal conveying direction, the drum 48 for heat development is formed.
The photosensitive material 16 and the image receiving material 36 between the belt support mechanism 52 and the belt support mechanism 52 are discharged to the outside.

The jamming releasing means for the heat developing and transferring section rotates the drum 48 for heat developing, and the photosensitive material 16 and the image receiving member between the drum 48 for heat developing and the belt support mechanism 52 are received. The material 36 and the material 36 may be configured to be discharged to the outside.

Next, the relationship between the operation of the gear train mechanism in the belt drive mechanism shown in FIG. 5 and the operation of the gear train mechanism constituting the jamming canceling means for the thermal development transfer portion shown in FIG. 6 will be described.

The gear train mechanism in the belt driving mechanism shown in FIG. 5 is used to form the drum 48 for heat development of the heat development transfer section 34.
When performing normal thermal development processing by rotating, the drive motor 41 is rotationally driven in the normal clockwise direction, and the output gear 43 fixed to the output shaft of the drive motor 41 moves from the first intermediate transfer gear 45 to the second intermediate transfer gear 45. The rotation output is decelerated and transmitted so as to rotate the output gear 49 counterclockwise via the gear 47, and the end side roller 56E (illustrated in FIG. 3) is rotationally driven by the rotational driving force of the output gear 49. As a result, the endless belt 54 wound around the end side roller 56E is driven so as to move in synchronization with the rotation operation of the drum 48 for heat development.

When the output gear 49 in the gear train mechanism of the belt drive mechanism shown in FIG. 5 is rotated counterclockwise, the gear forming the jamming releasing means for the heat development transfer portion shown in FIG. In the row mechanism, the transmission main shaft 71 is rotated counterclockwise in conjunction with the output gear 49.

At this time, since the gear train mechanism constituting the jamming releasing means for the heat development transfer portion shown in FIG. 6 has no relative operation between the arcuate gear 57 and the intermediate intermediary gear 59, the intermediate operation is not performed. The intermediate gear 59 and the driven gear 67 are in a stopped state. Therefore, for the driven gear 67 that is stopped,
The transmission main shaft 71 becomes idle at the one-way clutch 69.

Next, the drive motor 41 in the gear train mechanism of the belt drive mechanism shown in FIG.
When 7 is moved from the closed state shown in FIG. 1 to the opened state shown in FIG. 2, the movable frame 17 is interlocked with the gear portion of the arcuate gear 57 fixed at a fixed position. ,
When the small gear 61 of the intermediate medium gear 59 rolls clockwise, the intermediate medium gear 59 rotates clockwise, the large gear 63 of the intermediate medium gear 59 rotates clockwise, and the large gear 63 rotates. The force causes the driven gear 67 to rotate counterclockwise.

When the driven gear 67 rotates counterclockwise in this way, the one-way clutch 69 connects the driven gear 67 and the transmission main shaft 71 so as to rotate integrally, so that the rotational force of the driven gear 67 is increased. Is transmitted to the output gear 49 in the gear train mechanism of the belt drive mechanism shown in FIG. 5 via the transmission main shaft 71, and the rotation driving force of the output gear 49 rotationally drives the end side roller 56E (shown in FIG. 3). As a result, the endless belt 54 wound around the end side roller 56E
Is driven so as to move in the normal conveying direction.

Therefore, when the drive motor 41 of the gear train mechanism of the belt drive mechanism shown in FIG. 5 is stopped, the photosensitive material 16 and the image receiving material 36 are sandwiched between the drum 48 for heat development and the belt support mechanism 52. Even when the endless belt 54 is left in the open state, the gear train mechanism, which constitutes the jamming releasing means for the heat development transfer portion shown in FIG. 6 as described above, operates the endless belt 54 in conjunction with the operation of opening the movable frame 17. The remaining photosensitive material 16 and image receiving material 36 can be pulled out to the downstream side in the transport direction and removed by moving in the normal transport direction.

Further, the various internal devices in the image forming apparatus 10 described above are configured to operate while being controlled by a control unit using a microcomputer (not shown) or the like.

Next, the case where the heat development transfer processing is performed in the heat development transfer section 34 configured as described above will be described. In this case, in the state shown in FIGS. 1 and 3, the photosensitive material 16 sent from the squeeze roller 32 is placed between the drum 48 and the laminating roller 50 while the drum 48 is rotating in the arrow A direction. And the image receiving material 36 sent from the outlets of the guide plates 27 and 29 are overlapped and sandwiched. The photosensitive material 16 is fed between the drum 48 and the laminating roller 50 in a state of preceding the image receiving material 36 by a predetermined length.

Then, the photosensitive material 16 and the image receiving material 36, which are placed on the outer peripheral surface of the drum 48 in an overlapping state, are pressed by the bonding roller 50 so as to be sandwiched by a predetermined strong pressure for bonding. These photosensitive materials 16
And the image receiving material 36 are pasted together.

The photosensitive material 16 and the image receiving material 36 thus bonded together at the bonding roller 50 portion are
It moves in the direction of arrow A along with the rotation of 8, and is sandwiched between the endless belt 54 of the belt support mechanism 52 and the drum 48.

At this time, the endless belt 54 is connected to the drum 48.
The photosensitive material 16 and the image receiving material 36 sandwiched between the endless belt 54 and the drum 48 do not move relative to each other due to the frictional resistance between the drum 48 and the endless belt 54, and the drum 48 rotates. Arrow A in sync with movement
Is conveyed in the direction.

In this way, the photosensitive material 16 and the image receiving material 36 which are overlapped are wound around the drum 48 from the leading end to the trailing end thereof, and are held and held by the belt support mechanism 52. Then, the rotation of the drum 48 is stopped, the outer peripheral surface of the drum 48 is heated by a heater inside the drum 48, and is heated to a predetermined temperature.
The heating state is maintained by stopping for a predetermined processing time until the heat development transfer processing is completed.

Instead of stopping the drum 48 for a predetermined processing time until the heat development transfer process is finished and heating the drum 48 as described above, the rotation of the drum 48 is continued to separate the photosensitive material 16 and the image receiving material 36. The thermal development transfer process may be executed by rotating the drum 48 and heating it many times.

During this heat development transfer process, the photosensitive material 16
Emits a movable dye upon heating by the drum 48, and at the same time, this dye is transferred to the dye fixing layer of the image receiving material 36, and an image is obtained on the image receiving material 36.

When an image is formed on the image receiving material 36 in this manner, the moving operation member 58 is moved to the retracted state by the moving operation member drive operation means. At this time,
The drive operation means for the movement operation member operates the movement operation member 58 so that the fifth roller 56A arranged on the movement operation member 58 draws the endless belt 54 near the outer peripheral surface of the drum 48. A part of the path of 54 is changed so as to be folded back, and movement adjustment is performed so that the total length of the path of the endless belt 54 does not change as much as possible.

Further, since the fifth roller 56A moves in the direction of the arrow A, a part of the path of the endless belt 54 is changed to a short length, and the fifth roller 56A turns back a part of the path of the endless belt 54. The amount of the difference from the amount by which a part of the path is changed to be long is determined by adjusting the position of the pedestal 60 on which the tension holding roller 56T, which is arranged to be wound around a part of the endless belt 54, is attached. Automatically change and adjust to absorb by moving with urging force. Therefore, the endless belt 54 can maintain proper tension without causing slack over the entire path.

When the movement operating member 58 is rotated, the peeling pawl mechanism 70 is in a state where the peeling pawl 76 at its free end and the paper discharge roller mechanism 78 are dropped on the outer peripheral surface of the drum 48. Further, at this time, the peeling claw 64 located at the position of FIG.
It moves forward to a predetermined use position near the drum 48 shown in FIG.

In this way, the movement operating member 58 is shown in FIG.
When the state is reached, the rotation of the movement operating member 58 is stopped by the movement operating member drive operating means, but the drum 48 still continues to rotate.

Then, the light-sensitive material 16 and the image-receiving material 36 that have been overlapped are continuously rotated in synchronization with the drum 48,
It is sandwiched again by the laminating roller 50.

The photosensitive material 16 attached to the drum 48 integrally with the image receiving material 36 and sent to the position of the peeling claw 64 is peeled off from the image receiving material 36 attached to the drum 48 by the peeling claw 64. The sheets are sent out and stocked on the discharge tray 66 by the sheet discharge roller unit 68 and the like.

The image receiving material 36 attached to the drum 48 and further fed in the direction of the arrow A from the position of the peeling claw 64 is
It is peeled off by the peeling claw 76. The peeled image receiving material 36 is sent out to the image receiving material stocker 82 by the paper discharging roller mechanism 78, the plurality of conveying rollers 33, and the guide member 35 and is stocked.

Next, the pair of photosensitive materials 1 is formed as described above.
When the thermal development transfer processing of 6 and the image receiving material 36 is completed, the moving operation member 58 is rotated by the moving operation member drive operation means in the direction opposite to the arrow A to return to the state of FIG. Then, the peeling claw mechanism 70 is returned to the retracted position in FIG.

After returning to the state of FIG. 3 in this way,
The heat development transfer process for the new photosensitive material 16 and the new image receiving material 36 is restarted.

Next, the essential parts of the operation and operation of the image forming apparatus main body according to the present embodiment will be described.

In the image forming apparatus 10 configured as described above, the following actions and operations are performed in order to perform the heat development transfer process to form an image on the image receiving material 36. In the image forming apparatus 10, the control unit first performs control to shift each device inside the main body of the image forming apparatus 10 to a processable state.

Therefore, the control section prepares the exposure apparatus 22 with a signal of an image processed by a scanner or the like, and executes a predetermined control for immediately shifting the scanning exposure processing of the image to a ready state.

This control section fills the arc-shaped passage for the photosensitive material 16 formed between the tray 28 and the guide member 30 in the liquid application section 26 with water as an image forming solvent. The water is heated to a predetermined processing temperature and held.

This control section holds the drum 48 in the heat development transfer section 34 by raising the outer peripheral surface of the drum 48 to a predetermined processing temperature by a heater such as a heating lamp installed therein.

This control unit is the same as the image forming apparatus 10 described above.
After detecting that each device inside the main body is ready to perform image forming processing, first, the nip roller 18 inside the main body of the image forming apparatus 10 is operated to load the apparatus inside the main body. The photosensitive material 16 is pulled out from the sensitive material magazine 14 and sent out on the conveying path.

Then, the photosensitive material 16 is conveyed in front of the exposure device 22 with its photosensitive (exposure) surface facing the exposure device 22.

Next, when the photosensitive material 16 passes through the exposure device 22, the exposure device 22 scans and exposes an image on the photosensitive material 16 based on an image signal processed by a scanner or the like (not shown).

When the scanning exposure is completed and the photosensitive material 16 is pulled out by a predetermined length, the control section operates the cutter 20 to cut the photosensitive material 16 into a predetermined length corresponding to the size of the print on which the image is formed. .

The exposed light-sensitive material 16 has the turn portion 2
4 and is sent to the liquid application section 26. In the liquid application section 26, water as an image forming solvent is applied to the conveyed photosensitive material 16.

After that, the photosensitive material 16 coated with water is
It is sent from the squeeze roller 32 to the bonding roller 50 of the heat development transfer section 34.

On the other hand, in the main body of the image forming apparatus 10, the image receiving material 36 is pulled out from the material receiving magazine 38 by the nip roller 40 and sent out onto the conveying path. Image receiving material 36
Is pulled out for a predetermined length, the cutter 42 is operated to cut the image receiving material 36 into the size of the print on which the image is formed.

The image receiving material 36 cut by the cutter 42 is
By rotating the pair of transport rollers 25A and 25B while being sandwiched by the pair of transport rollers 25A and 25B, the image receiving material 36 is moved to the two guide plates 27,
It is guided by 29 and conveyed. Then, the tip of the image receiving material 36 is sent to the bonding roller 50.

Then, as the photosensitive material 16 is fed to the heat development transfer section 34 as described above, the image receiving material 36
Is sent to the heat development transfer section 34, and the image receiving material 36 and the photosensitive material 16 are sent to the bonding roller 50 in a state where they are aligned and matched with each other, and the bonding roller 5
When the image receiving material 36 and the photosensitive material 16 are overlapped with each other, the pressure is applied to the outer peripheral surface of the thermal developing drum 48 with a strong pressing force.

As a result, the photosensitive material 16 and the image receiving material 36 are overlapped with each other at the laminating roller 50, and the photosensitive material 16 and the image receiving material 36 are heated by the drum 48 and cooperate with the belt support mechanism 52. It is nipped and conveyed, and thermal development transfer is performed to form an image on the image receiving material 36.

Further, when these are discharged from the heat development transfer section 34, the peeling claw 64 scoops the leading end portion of the photosensitive material 16 which is conveyed a predetermined length ahead of the image receiving material 36, and the leading end of the photosensitive material 16 is picked up. The part is peeled from the image receiving material 36. The photosensitive material 16 is further conveyed by the paper discharge roller unit 68 and accumulated on the discharge tray 66. At this time, the photosensitive material 1
Since No. 6 is dried immediately, it is not necessary to provide heaters for drying the photosensitive material 16.

On the other hand, the image receiving material 36 separated from the photosensitive material 16 is further conveyed by the drum 48, and the peeling claw 7
6 is peeled off, and as described above, the paper discharge roller mechanism 7
8, a plurality of rollers 33 for conveyance, a guide member 35, and the like send them out to the stocker 82 for image receiving material to be stocked. When the image recording process for a plurality of sheets is performed, the above steps are successively performed.

Next, an operation and an operation in the case where a conveyance failure such as a jamming occurs while the image forming apparatus 10 configured as described above is executing an image forming process, and a coping method therefor will be described.

During the image forming process in the image forming apparatus 10, the image receiving material 36 cut into a predetermined size is placed between the fixed frame 15 and the movable frame 17 along with the pair of conveying rollers. From the process of conveying the portions of 25A, 25B and the guide plates 27, 29 to the process of adhering the photosensitive material 16 and the image receiving material 36 with the laminating roller 50 and conveying the heat development transfer portion 34, When the image receiving material 36 and the photosensitive material 16 which are being conveyed cause a conveyance failure such as jamming, the following measures are taken.

First, at the time when the controller detects that a conveyance failure such as jamming has occurred, the controller stops the image forming processing operation of the image forming apparatus 10.
An alarm is issued to inform the user that a conveyance error such as jamming has occurred.

Then, the user, who knows that the conveyance error such as jamming has occurred due to this alarm, removes the photosensitive material 16 and the image receiving material 36 which have caused the conveyance error such as jamming from the inside of the image forming apparatus 10. The movable frame 17 portion of the housing 12 is opened.

The opening operation of the movable frame 17 portion is quickly performed by a simple one-touch operation in which the movable frame 17 rotates from the state of FIG. 1 around the pivot pin 23 to the state of FIG. .

When the movable frame 17 is opened as shown in FIG. 2, one transport roller 25A and one transport roller 25A are provided at the portion of the transport path located along the storage portion 19 between the fixed frame 15 and the movable frame 17. The guide plate 27 and the movable frame 17 move together, and the other conveying roller 25B and the other guide plate 29 are immovable on the fixed frame 15. Therefore, the pair of conveying rollers 25A and 25B and the two guide plates are provided. 27 and 29 are separated from each other,
The inner surfaces facing each other are widely opened.

Accordingly, one of the guide plates 27 and the surface on the movable frame 17 whose inner surfaces facing each other are widely opened, or the other conveying roller 25B and the other guide plate 2 are provided.
When the image receiving material 36 is present on the upper surface of the sheet 9, the user can easily confirm that the image receiving material 36 is present, and the image receiving material 36, which is placed without any restraint, is picked by hand. It can be removed easily and this task can be performed easily and quickly.

The photosensitive material 16 and the image receiving material 36 are
If it has been carried into the heat development transfer section 34, the belt support mechanism 52 is interlocked with the operation of opening the movable frame 17 by the jamming releasing means for the heat development transfer section described above.
The endless belt 54 moves to automatically release the jammed photosensitive material 16 and image receiving material 36 from the end side roller 56E to the downstream side in the transport direction.

Further, even when the photosensitive material 16 and the image receiving material 36 are jammed while being sandwiched by the laminating roller 50, the movable frame 17 is rotated and opened to open the surface of the drum 48 for heat development. Since the laminating roller 50 is separated from the photosensitive material 16 and the image receiving material 36 by the jamming releasing means for the heat development transfer portion, the photosensitive material 16 and the image receiving material 36 are automatically moved from the end side roller 56E in the heat development transfer portion 34 to the downstream side in the transport direction. Is released.

The surface of the heat-developing drum 48 is laminated with the photosensitive material 16 and the image receiving material 36 between them.
When the photosensitive material 16 and the image receiving material 36 are tried to be pulled apart in a state where 0 is a strong pressing force, the photosensitive material 16 and the image receiving material 36 are torn and a scrap is stuck to the pressing portion of the roller 50. However, since the bonding roller 50 is pulled away from the surface of the heat developing drum 48, such a problem can be prevented.

Further, in the conventional structure in which the bonding roller 50 is kept pressed against the surface of the heat developing drum 48 with a strong pressing force, the bonding roller 50 is removed and the photosensitive material 16 and the image receiving material 36 are removed. When taken out, in order to set the bonding roller 50 to the surface of the heat developing drum 48 again in a state of being pressed with a strong pressing force, the worker must perform a work of pressing the bonding roller 50 with a large force. So this task was difficult.

However, the operation of opening the movable frame 17 separates the bonding roller 50 from the heat developing drum 48, and the operation of closing the movable frame 17 causes the bonding roller 50 to come back to the surface of the heat developing drum 48 again. Can be easily set in a crimped state with a strong crimping force. Furthermore, since the worker can perform an operation of pushing and closing a place on the wide outer surface of the movable frame 17 where the hand can be easily put, this work can be performed relatively easily.

The photosensitive material 16 and the image receiving material 36 are
The peeling pawl mechanism 70 has been carried into the heat development transfer section 34, and the peeling pawl mechanism 70 is in the state during the peeling operation shown in FIG.
If the photosensitive material 16 and the image receiving material 36 are jammed between the peeling claws 64 and 76 and the drum 48 for heat development, the movable frame 17 is rotated to open. As a result, the peeling claw 64 and the peeling claw 76 of the peeling claw mechanism 70 are pulled away from the surface of the drum 48 for heat development, so that the photosensitive material 16 and the image receiving material 36 are thermally developed by the jamming releasing means for the heat development transfer section. It is automatically discharged from the end side roller 56E in the transfer portion 34 to the downstream side in the transport direction.

Since the photosensitive material 16 and the image receiving material 36 released from the heat development transfer portion 34 as described above fall to the open portion of the movable frame 17 by rotation, the user
Photosensitive material 16 in a state of falling without any restraint
The image receiving material 36 and the image receiving material 36 can be easily removed by picking them by hand, and this work can be performed easily and quickly.

Further, the photosensitive material 16 and the image receiving material 36 are
When jamming is performed at the peeling claw 64 and the peeling claw 76 of the peeling claw mechanism 70, a part of the photosensitive material 16 and the image receiving material 36 is peeled off and attached to the peeling claw 64 and the peeling claw 76, or the peeling claw 64 is peeled. When the nail 76 is damaged or needs to be repaired, the operator removes the shaft pin 74 pivotally mounting the deforming plate member 72 of the peeling nail mechanism 70, and removes the peeling nail mechanism 70 from the image forming apparatus 10. As shown in FIG. 7, the floor surface 37 can be removed.
When placed on the surface, maintenance work, cleaning work, replacement work of parts, work of adjusting the mounting position of parts, and the like can be easily performed.

Further, the movable frame 17 is formed by removing the shaft support pin 23 from the shaft support portion 21.
The parts of the heat development transfer section 34 that are integrally arranged on the floor are removed from the image forming apparatus 10 and placed on the floor.
In the state of being placed against the surface, the maintenance work, the cleaning work for the drum 48 for heat development, the replacement work for parts, the work for adjusting the mounting position of parts, and the like can be easily performed.

Further, when the photosensitive material 16 or the image receiving material 36 jams on the conveyance path other than the above in the image forming apparatus 10, these are conveyed in the reverse direction on the conveyance path and taken out as in the conventional case. Jamming is eliminated by the method.

In the present embodiment described above, the constitution using the photosensitive material 16 and the image receiving material 36 as the image recording material has been described, but the present invention is not limited to this, and other sheet-shaped image recording materials. Is applicable.

[0155]

As described above, according to the image forming apparatus of the present invention, firstly, inside the image forming apparatus, the photosensitive material and the image receiving material are conveyed on the conveying path and overlapped by the laminating roller. A movable frame is attached and fixed inside the housing of the image forming apparatus that performs thermal development transfer processing so that it can be moved to the outside while being pressed and wound around the outer peripheral surface of the drum. A transport path is formed between the frame and the movable frame, and the transport path is set to the transportable state when the movable frame is inserted in the housing and is in the closed state, and the movable frame is directed outward. When the members are moved so as to be opened, the members forming the transfer path are separated and separated from each other, so that the inner surfaces facing each other are widely opened.

With the above-described structure, if a conveyance failure such as jamming occurs while the photosensitive material and the image receiving material are being conveyed, the movable frame is moved toward the outside to convey the material. In the path portion, the members disposed so as to face each other between the fixed frame and the movable frame are separated and separated from each other, and jamming is performed on the transport path in a state where the inner surfaces facing each other are widely opened. The photosensitive material and the image receiving material can be easily taken out, and the work of eliminating jamming and the like can be performed easily and efficiently in a relatively short time, and the work efficiency can be improved.

Second, at least a part of the conveying path is arranged on a movable frame movably mounted so that one movable conveying roller and one movable guide plate are opened to the outside. , The other fixed-side transport roller and the other fixed-side guide plate are installed on a fixed frame that is fixed and installed so as to mount and hold internal equipment inside the housing,
When the movable frame is inserted into the housing and is in a closed state, one movable side conveyance roller and the other fixed side conveyance roller correspond to each other, and one movable side guide plate and the other fixed side guide plate Is set to the corresponding transportable state, and when the movable frame is moved to open to the outside, one movable side transport roller and the other fixed side transport roller are separated from each other and separated from each other. Further, the one movable side guide plate and the other fixed side guide plate are separated from each other and separated from each other, so that the inner surfaces facing each other are widely opened.

With the above-described structure, when a conveyance failure such as jamming occurs while the photosensitive material and the image receiving material are being conveyed, the movable frame is moved toward the outside to Of the movable side conveyance roller and the other fixed side conveyance roller are separated from each other, and one movable side guide plate and the other fixed side guide plate are separated from each other and separated so as to face each other. It is possible to easily take out the photosensitive material and the image receiving material that are jamming on the transport path in a state where the inner surface is widely opened,
There is an effect that work for eliminating jamming and the like can be performed easily and efficiently in a relatively short time and work efficiency can be improved.

Thirdly, the movable frame is detachably mounted from the housing, and the movable frame is provided with a foot member for placing on the floor.

With the above-described structure, work such as maintenance, repair or adjustment of the equipment attached to the movable frame is performed with the movable frame removed from the housing and placed on the floor surface of the work site or the like with the foot members. Therefore, there is an effect that the work efficiency can be improved.

Fourthly, the drum for performing the heat development transfer process is arranged on the movable frame side, and the laminating roller is arranged on the fixed frame side.

With the above-described structure, when a conveyance failure such as jamming occurs while the photosensitive material and the image receiving material are being conveyed, the movable frame is moved to the outside to Since the drum for heat development transfer processing arranged on the movable frame side is automatically separated from the laminating roller that is strongly pressed against each other, the photosensitive material and the image receiving material sandwiched between them can be easily taken out. be able to. Also, when the movable frame is inserted into the housing and closed to bring it into use,
Since the laminating roller is automatically set so as to be strongly pressed against the drum for performing the heat development transfer process, the working efficiency can be improved.

Fifthly, the photosensitive drum which has been subjected to the thermal development transfer processing is arranged in a state where the drum for performing the thermal development transfer processing is arranged on the movable frame side, and the thermal development transfer processing is finished in a state of being superposed by the laminating roller and being pressed and wound around the outer peripheral surface of the drum. A peeling claw mechanism for peeling the material and the image receiving material from the outer peripheral surface of the drum is arranged on the fixed frame side.

With the above-described structure, when a conveyance failure such as jamming occurs while the photosensitive material and the image receiving material are being conveyed, the movable frame is moved to the outside to move the same. The drum that performs the heat development transfer process placed on the movable frame side is automatically separated from the peeling claw mechanism, so that the photosensitive material and the image receiving material existing between them can be easily taken out, so that jamming is eliminated. There is an effect that the work to be performed can be performed easily and efficiently in a relatively short time and the work efficiency can be improved.

Sixth, the peeling pawl mechanism is detachably mounted from the fixed frame, and the peeling pawl mechanism is provided with a foot member for placing it on the floor.

With the above configuration, the work efficiency of maintenance, repair or adjustment of the peeling pawl mechanism is improved with the peeling pawl mechanism removed from the fixed frame and placed on the floor surface such as a work site with the foot member. The effect is that you can do it.

Seventh, inside the image forming apparatus, the belt support mechanism holds the state in which the photosensitive material and the image receiving material are conveyed on the conveying path, overlapped by the laminating roller and wound around the outer peripheral surface of the drum. By carrying the sheet, the movable frame is mounted inside the housing of the image forming apparatus for performing the heat development transfer processing so as to be movable toward the outside, and the jamming release means for the heat development transfer section is used. The photosensitive material and the image receiving material are discharged to the outside by causing the drum arranged on the movable frame and the belt support mechanism to perform a conveying operation in conjunction with a movement operation of opening the movable frame toward the outside.

With the above-described structure, when a conveyance failure such as jamming occurs while the photosensitive material and the image receiving material are being conveyed, the drum arranged on the movable frame and the belt support mechanism are The jamming releasing means for the heat development transfer unit causes the photosensitive material and the image receiving material to be discharged to the outside by performing the conveying operation in conjunction with the movement operation of opening the movable frame toward the outside, so that the drum and the belt support. The photosensitive material and the image receiving material existing between the mechanism can be easily taken out, and the work of eliminating jamming and the like can be easily and efficiently executed in a relatively short time, and the work efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a schematic overall configuration diagram showing an image forming apparatus in use according to an embodiment of the present invention.

FIG. 2 is a schematic overall configuration diagram illustrating an image forming apparatus in a state in which a movable frame is operated to be opened in order to eliminate jamming and the like according to an embodiment of the present invention.

FIG. 3 is a main-part configuration diagram showing a heat development transfer section in a state capable of heat development transfer processing in the image forming apparatus according to the exemplary embodiment of the present invention.

FIG. 4 is a main part configuration diagram showing a heat development transfer section in a state where a paper discharge operation is possible in the image forming apparatus according to the exemplary embodiment of the present invention.

FIG. 5 is a configuration diagram showing a gear train mechanism of a belt drive mechanism in the image forming apparatus according to the exemplary embodiment of the present invention and showing a main portion in a cross section.

FIG. 6 is a configuration diagram showing a cross section of a main portion of a gear train mechanism that constitutes a jamming canceling unit for the heat development transfer portion in the image forming apparatus according to the exemplary embodiment of the present invention.

FIG. 7 is a front view showing a state in which the peeling pawl mechanism in the image forming apparatus according to the exemplary embodiment of the present invention is detached and placed on the floor as an independent component.

[Explanation of symbols]

10 image forming apparatus 12 housing 15 fixed frame 15A bearing 16 Photosensitive material 17 Movable frame 21 Shaft support 23 Shaft support pin 25A Movable transport roller 25B Fixed side transport roller 27 Movable side guide plate 29 Fixed side guide plate 31 Footrest member 33 Laura 34 heat development transfer section 35 Guide member 36 Image receiving material 37 floor 39 Placement member 41 Drive motor 43 Output gear 45 Intermediate medium gear 47 Intermediate medium gear 48 drums 49 output gear Fifty rollers 51 Gear 52 Belt support mechanism 53 Drive motor 54 endless belt 55 Gear train mechanism 57 Arc gear 58 Moving operation member 59 Intermediate transmission gear 61 small gear 63 large gear 64 peeling nail 65 axis pin 67 Driven gear 68 Paper ejection roller section 69 one-way clutch 70 Peeling mechanism 71 Transmission spindle 72 Deformable plate member 74 axis pin 76 peeling nail 78 Paper ejection roller mechanism

Continued front page    F-term (reference) 2H112 AA03 BA08 BA23 BA24 BA28                       BC04                 3F049 AA04 CA32 DA12 DB02 LA02                       LB03

Claims (7)

[Claims] 1. An image to be subjected to a heat development transfer process in a state in which a photosensitive material and an image receiving material which have been conveyed are superposed by a laminating roller inside the housing and are pressed and wound around the outer peripheral surface of the drum. A forming device, wherein a fixed frame is fixedly installed inside the housing so as to mount and hold internal equipment, and a movable frame is movably installed inside the housing so as to be open to the outside. A frame and a movable frame which is inserted into the housing and is set in a transportable state when in a closed use state, and separated from each other when the movable frame is moved to open to the outside. And a transport path configured between the fixed frame and the movable frame so that the inner surfaces facing each other are widely opened by separating them. An image forming apparatus characterized by. 2. A photosensitive material and an image receiving material, which have been conveyed on a conveying path set inside the housing, are superposed by a laminating roller, pressed against the outer peripheral surface of the drum, and wound. In an image forming apparatus that performs a development transfer process, a movable frame in which at least a part of the transport path is movably mounted so as to open one movable transport roller and one movable guide plate to the outside. The other fixed-side transport roller and the other fixed-side guide plate are installed on a fixed frame that is fixedly installed to hold and hold internal equipment inside the housing. The one movable side transport roller and the other fixed side transport roller correspond to each other in the use state in which the movable side guide plate is inserted and closed, and the one movable side guide plate The other fixed side guide plate is correspondingly set to the transportable state, and the one movable side transport roller and the other fixed side when the movable frame is moved to open to the outside. The conveying rollers are separated from each other and separated, and the one movable side guide plate and the other fixed side guide plate are separated from each other so that the inner surfaces facing each other are widely opened. An image forming apparatus having the above structure. 3. The movable frame is detachably mounted from the housing, and the movable frame is provided with a foot member for placing on the floor surface. 2. The image forming apparatus according to item 2. 4. The drum according to claim 1, wherein the drum for performing the heat development transfer process is arranged on the movable frame side, and the bonding roller is arranged on the fixed frame side. The image forming apparatus described. 5. The heat development transfer process is completed in a state where a drum for performing the heat development transfer process is arranged on the movable frame side, and is superposed by the laminating roller and pressed and wound around the outer peripheral surface of the drum. 2. A peeling claw mechanism for peeling the photosensitive material and the image receiving material from the outer peripheral surface of the drum is arranged on the fixed frame side.
The image forming apparatus according to claim 4. 6. The peeling pawl mechanism is detachably mounted from the fixed frame, and the peeling pawl mechanism is provided with a foot member for placing on the floor surface. The image forming apparatus according to item 1. 7. A belt support mechanism holds a state in which a photosensitive material and an image receiving material conveyed on a conveying path set inside a housing are superposed by a laminating roller and wound around an outer peripheral surface of a drum. In an image forming apparatus that carries out a thermal development transfer process by carrying the sheet, the movable frame mounted inside the housing so as to be movable toward the outside, and the drum arranged on the movable frame. And the belt support mechanism, the heat developing and transferring section configured to cause the photosensitive material and the image receiving material to be discharged to the outside by causing the conveying operation to interlock with the moving operation to open the movable frame toward the outside. An image forming apparatus, comprising: