JPH08318655A - Recording apparatus - Google Patents

Abstract

PURPOSE: To prevent the staining of recording paper caused by the contact or friction with a recording head or a carriage, the abrasion and damage of the recording head and ink emission inferiority at a time of ink jet recording. CONSTITUTION: A movable paper pressing plate 8 movable in the moving direction of a carriage 3 in connection with the movement of the paper feed guide 6 movable in the lateral direction of recording paper is provided and a protruding part is provided to a part of the carriage 3 or a recording head 4 so as to come into contact with the movable paper pressing plate 8 or to form a slight gap with respect to the plate 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus for recording on a recording material by recording means.

[0002]

2. Description of the Related Art A recording device having functions such as a printer, a copying machine and a facsimile, or a recording device used as an output device of a multifunction machine or a workstation including a computer, a word processor, etc., is a sheet or a plastic thin plate based on image information. Images (including characters and symbols) on recording materials (recording media) such as (sheets for OHP)
Is configured to record. The recording device can be classified into an ink jet type, a wire dot type, a heat sensitive type, a thermal transfer type, a laser beam type and the like depending on the recording system of the recording means used.

In a serial type recording apparatus which employs a recording system in which a main scanning is performed in a direction intersecting a conveying direction (sub-scanning direction) of a recording material, the recording material is set at a predetermined recording position and then the recording material is set. An image (including characters, symbols, etc.) is recorded by a recording unit (recording head) mounted on a carriage that moves (main scanning) along, and after one line of recording is completed, a predetermined amount of paper is fed (sub-scan). An image is recorded in a desired range of the recording material by repeating the operation of performing (scanning) and then recording (main scanning) the image of the next row. On the other hand, in a line type recording apparatus that records a recording material only in the sub-scanning direction in which the recording material is fed in the transport direction, the recording material is set at a predetermined recording position, and one line of recording is continuously performed at one time. A predetermined amount of paper feed (pitch feed) is performed, and an image is recorded on the entire recording material.

Among them, the ink jet type (ink jet recording apparatus) is a means for recording by ejecting ink from a recording means (recording head) onto a recording material, and it is easy to make the recording means compact and high definition. Images can be recorded at high speed, plain paper can be recorded without requiring special processing, running costs are low, and the non-impact method reduces noise and uses multicolor inks. Therefore, it has an advantage that it is easy to record a color image. Above all, a line type recording apparatus using a line type recording means in which a large number of ejection ports are arranged in the paper width direction can further speed up recording.

In particular, an ink jet type recording means (recording head) for ejecting ink by utilizing heat energy,
Through the semiconductor manufacturing process such as etching, vapor deposition, and sputtering, the electrothermal converter formed on the substrate, the electrode,
By forming the liquid passage wall, the top plate, and the like, it is possible to easily manufacture a liquid discharge device having a high-density liquid passage arrangement (ejection port arrangement), and to further reduce the size. Further, by utilizing the advantages of IC technology and micro processing technology, it is easy to make the recording means long and planar (two-dimensional), and it is also easy to make the recording means full-multi and high-density mounting. is there.

On the other hand, there are various demands on the material of the recording material, and in recent years, in addition to ordinary recording material such as paper and resin thin plate, thin paper and processed paper (paper with punch holes for filing). Or perforated paper, paper of any shape, etc.)
It has been required to use such as. Generally, in the recording apparatus, the recording material is pressed against the platen side by the paper pressing plate to prevent the floating of the paper,
In this state, the recording head mounted on the carriage records on the recording material.

[0007]

However, in the above recording apparatus, there is no problem when using a normal recording paper (recording material), but when a recording paper having wrinkles or curls is used, the following occurs. Inconvenience occurs. That is, when the fed recording paper has wrinkles, particularly when the fed recording paper has wrinkles or curls, the edge of the recording paper floats toward the recording head and A part of the carriage or the recording head comes into contact with the end surface of the recording sheet, causing rubbing. Therefore, the recording material (recording paper) may be soiled. When the recording material floats significantly, in the case of an inkjet recording apparatus, the ink ejection portion of the recording head may come into contact with the recording material, which may cause ejection failure of the recording ink.

The present invention has been made in view of the above technical problems, and an object of the present invention is to prevent the recording material from being soiled due to contact or rubbing with the recording means or the carriage. It is an object of the present invention to provide a recording apparatus capable of preventing abrasion and damage of the recording unit due to contact and rubbing, and defective ink ejection of the inkjet recording unit.

[0009]

According to a first aspect of the present invention, in a recording apparatus for recording on a recording material by recording means, a paper feed sheet guide movable in the paper width direction of the recording material, and the paper feed sheet guide. The above-described object is achieved by a configuration including a movable paper pressing member that is movable in the carriage movement direction in association with the movement of the.

According to a second aspect of the present invention, in addition to the structure of the first aspect, the movable paper pressing member is formed as a part of the paper feed paper guide, and the movable paper pressing member is the A structure in which the pressure contact force of the movable paper pressing member is relieved when moving with respect to the paper feed paper guide, or
By further providing a convex portion, which is in contact with the movable paper pressing member or forms a slight gap with the movable paper pressing member, in a part of the carriage or the recording means, it is possible to more efficiently The above object is achieved.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. Throughout the drawings, the same reference numerals indicate the same or corresponding parts. 1 is a schematic perspective view of a first embodiment of a recording apparatus to which the present invention is applied, FIG. 2 is a longitudinal sectional view of the recording apparatus of FIG. 1, and FIG. 3 is a main part of the recording apparatus of FIG. It is a top view. 1 to 3, 1 is a recording device, 2 is a recording material (recording medium) such as recording paper or a plastic thin plate, 3 is a carriage, 4 is a recording means (recording head), and 5 is the position of the carriage 3. A position sensor 6 for controlling the widthwise position of the recording material 2 and a paper feed paper guide 7 for moving in the moving direction (scanning direction) of the carriage 3 in association with the movement of the paper feed paper guide 6. Possible flag, 8 is recording material 2
It is a movable paper pressing member (plate) for pressing. The paper feed paper guide 6 is movable in the paper width direction. Also,
The movable paper pressing member (plate) 8 is the paper feed paper guide 6
The carriage 3 moves in the moving direction in conjunction with the movement of the carriage.

In this embodiment, the recording apparatus 1 is an ink jet recording apparatus and the recording head 4 is an ink jet recording head. Recording material 1 to recording device 1
When inserting, the position of the paper feed paper guide 6 in the paper width direction is set according to the size (particularly the width) of the recording material 2. The flag 7 and the movable paper pressing member 8 move in the movement direction of the carriage 3 (substantially the same as the paper width direction) in conjunction with the movement of the paper feed paper guide 6. The position sensor 5 is mounted on the carriage 3, and the position of the flag 7 is detected by the position sensor 5 when the carriage 3 moves.

The recording head 4 is an ink jet recording head for ejecting ink by utilizing heat energy, and is provided with an electrothermal converter for generating heat energy. Further, the recording head 4 uses the pressure change caused by the growth and contraction of the bubbles due to the film boiling generated by the thermal energy applied by the electrothermal converter to eject the ink from the ejection port for recording. is there.

FIG. 4 is a partial perspective view schematically showing the structure of the ink ejection portion of the recording means 4. In FIG.
A plurality of discharge ports 82 are formed at a predetermined pitch on a discharge port forming surface 81 which faces the recording material 2 with a predetermined gap (for example, about 0.5 to 2.0 mm), and the common liquid chamber 83 and each of the common liquid chambers 83 are formed. An electrothermal converter (heat generating resistor, etc.) 85 for generating energy for ejecting ink is arranged along the wall surface of each liquid passage 84 communicating with the ejection port 82. The recording head 4 is mounted on the carriage 3 in such a positional relationship that the ejection ports 82 are arranged in a direction intersecting the scanning (moving) direction of the carriage 3. In this way, the corresponding electrothermal converter 85 is driven (energized) based on the image signal or the ejection signal to cause the ink in the liquid passage 84 to film-boil, and the ink generated from the ejection port 82 is ejected by the pressure generated at that time. Recording means 4 is configured.

2 and 3, 9 is a pressure plate, 10 is a pressure plate spring, 11 is a paper feed roller, 12 is a front guide,
13 is an LF roller (conveying roller = line feed roller), 14 is a pinch roller, 15 is a fixed paper pressing plate, 1
6 is a platen, 17 is a discharge roller, and 18 is a spur.
The pinch roller 14 is pressed against the LF roller 13, and the spur 18 is pressed against the paper discharge roller 17 with the recording material 2 interposed therebetween. The fixed paper pressing plate 15
Is disposed at a fixed position in the paper width direction of the recording material 2 (usually a range covering the entire paper width).

The feeding operation of the recording material 2 will be described with reference to FIG. In FIG. 2, by pushing up the pressure plate 9 with the pressure plate spring 10, the recording material (recording paper) 2 stacked on the pressure plate 9 is pressed against the paper feed roller 11. By rotating the paper feed roller 11, one recording material 2 on the uppermost layer is separated and fed to the recording unit. The operation of separating only one recording material 2 on the pressure plate 9 is performed by the separation claw 19 shown in FIG.

The recording material 2 separated and fed is guided by the front guide 12 and fed to the nip portion between the LF roller (paper feed roller) 13 and the pinch roller 14. At this time, the recording material 2 may be removed from the resist. By controlling the rotation of the LF roller 13, the recording material (recording paper) 2 is nipped (sandwiched) by the LF roller 13 and the pinch roller 14, and is further conveyed toward the recording portion by the frictional conveyance force (paper). Will be sent).

The recording material 2 being conveyed first passes between a fixed paper pressing plate 15 provided on the front guide 12 and a platen 16, and then a movable paper pressing member provided on the paper feeding paper guide 6. It passes between the member (plate) 8 and the platen 16 (near the recording unit in the illustrated example). The fixed paper pressing plate 15 is arranged over almost the entire area in the paper width direction, but the movable paper pressing member 8 is arranged so as to press only both side end portions of the recording material 2. In the illustrated example, the recording portion (the position where recording is performed by the recording head 4) is set at a position substantially corresponding to the movable paper pressing member 8 in the paper feeding direction. The recorded recording material 2 is ejected to the outside of the recording apparatus by the paper ejection roller 17 and the spur 18.

In FIG. 3, reference numeral 19 denotes a separation claw for separating and feeding one recording material 2 in cooperation with the paper feeding roller 11,
Reference numeral 20 is a separating plate for abutting the leading end of the stacked recording materials (recording papers) 2, and reference numeral 21 is a drive shaft for transmitting a rotational force to the paper feed roller 11. In addition, this drive shaft 2
The numeral 1 also serves as a guide shaft for guiding the movement of the paper feed paper guide 6 in the paper width direction.

In FIG. 3, reference numeral 22 denotes a stopper lever mounted on the paper feed sheet guide 6, and reference numeral 23 denotes a positioning groove member for positioning and holding the paper feed sheet guide 6 when the stopper lever 22 is locked. . The stopper lever 22 can be displaced (operable) with respect to the paper feed paper guide 6 between a locking position and a releasing position.
It is attached to. That is, when the paper feed paper guide 6 is slid (moved) according to the paper size of the recording material 2, the stopper lever 22 is released (released) from the locking groove of the groove member 23 and moved to the adjustment position. , The stopper lever 22 is locked in the locking groove of the groove member 23, and the paper feed paper guide 6 is set.

At this time, the movable paper pressing plate 8 and the flag 7 also move in the moving direction (scanning direction) of the carriage 3 in association with the movement (position adjustment) of the paper feeding paper guide 6. By rotating the paper feed roller 11 in this state, the recording material (recording paper) 2 is conveyed to the nip portion between the LF roller 13 and the pinch roller 14. At this time, the right edge of the recording material 2 is located at the position indicated by the alternate long and short dash line A in FIG. 3, and the left end of the flag 7 coincides with the position indicated by the alternate long and short dash line A.

The movable paper pressing member (plate) 8 is also at a position (near position) corresponding to the position of the one-dot chain line A. As the carriage 3 moves, the position sensor 5 mounted on the carriage 3 detects the position of the flag 7. Since the left end position of the flag 7 corresponds (or has a constant relationship) to the position of the right end edge of the recording material 2, the position of the right end edge of the recording material 2 is detected by the position detection of the flag 7 by the sensor 5. To be detected. On the other hand, the right edge portion of the recording material 2 is constantly pressed against the platen 16 by the movable paper pressing member 8 and is prevented from floating from the platen 16.

FIG. 5 is a vertical sectional view of a second embodiment of the recording apparatus to which the present invention is applied, and FIG. 6 is a plan view of the main part of the recording apparatus of FIG. This embodiment is different from the first embodiment shown in FIGS. 1 to 3 in that the flag 7 is formed separately from the paper feed paper guide 6, and in other respects it has substantially the same configuration. There is. In FIG. 5 and FIG. 6, 24 is a paper feed paper guide 6
Movement direction of the carriage 3 (scanning direction)
And 25 is a guide groove provided in the front guide 12. The guide groove 25 is for guiding the movement of the flag 24, and a part of the flag 24 (a lower end protruding portion) is slidably fitted in the guide groove 25.

The movable paper pressing member 8 is provided on the flag 24. The flag 24 is formed of an independent member, and the rear end portion 61 thereof is as shown in the drawing, the paper feed paper guide 6
It is mounted so as to move in conjunction with the movement of the paper feed paper guide 6 by being hooked (sandwiched) between the tip bifurcated portions 62. The position of this flag 24 is also detected by the position sensor 5 of the carriage 3, like the flag 7 in FIGS. Thus, also in this embodiment, the movable paper pressing member 8 and the flag 24 are configured to move together with the paper feed paper guide 6.

The second embodiment shown in FIGS. 5 and 6 is different from the first embodiment shown in FIGS. 1 to 3 in the above points, but is substantially the same in other respects. Corresponding parts are designated by the same reference numerals, and detailed description thereof will be omitted.

FIG. 7 is a vertical sectional view of a third embodiment of the recording apparatus to which the present invention is applied, and FIG. 8 is a vertical sectional view of the recording apparatus of FIG. 7 taken at a position different from that of FIG. 7 and 8
In the above, the flag 24, which is a single member, is mounted by slidably fitting (engaging) the lower end protruding portion 63 into the guide groove 25 of the front guide 12. 7 and 8, reference numeral 26 denotes a push-down lever for pushing down the pressure plate 9 against the pressure plate spring 10. This push down lever 2
A lever flag 27 is provided at the tip of 6 (a portion near the movement path of the carriage 3).

7 and 8, the paper feed paper guide 6
Is provided with a click for locking the push-down lever 26. When the push-down lever 26 is pushed down to the position shown by the broken line in FIG.
Set (load). At this time, the lever flag 27
As shown by the broken line, the carriage 3 moves to the position detected by the position sensor 5 mounted on the carriage 3. By detecting the position of the lever flag 27 by the position sensor 5, the state in which the push-down lever 26 is pushed down is detected.

The paper feed paper guide 6 is slidably mounted in the width direction of the recording material 2 along the drive shaft (guide shaft) 21 as in the first and second embodiments. . The push-down lever 26 is pivotally supported on the paper feed paper guide 6 so as to be rotatable. On the other hand, the movable paper pressing member 8 is integrally attached to the flag 24. Therefore, as shown in FIG. 8, the flag 24 is hooked on a bifurcated portion 64 formed on the tip protruding portion of the push-down lever 26. Thus, when the paper feed paper guide 6 moves, the push-down lever 26 provided on the paper feed paper guide 6 moves, whereby the push-down lever 26 is moved.
The flag 24 sandwiched between the tip ends of the two is configured to move along the guide groove 25.

By setting the push-down lever 26 to the position shown by the solid line, the pressure plate 9 is pushed up, the recording material 2 stacked on the pressure plate 9 is pressed against the paper feed roller 11, and the paper can be fed. . At this time, the movable paper pressing member (plate) 8 is pressed toward the platen 16 side by a part of the push-down lever 26 (tip projection). FIG. 8 shows the flag 24 which is interlocked with the paper feed paper guide 6. That is, when the paper feed sheet guide 6 is moved, the push-down lever 26 provided on the paper feed sheet guide 6 moves, and the flag 24 sandwiched between the forked portions 64 of the push-down lever 26 is in the guide groove 25 of the front guide 12. Move along.

The third embodiment shown in FIGS. 7 and 8 is different from the embodiment described above with reference to FIGS. 1 to 6 in the points described above, but has the substantially same constitution in other points and corresponds to each of them. Portions are denoted by the same reference numerals, and detailed description thereof will be omitted.

FIGS. 9 and 10 are partial side views showing the operation of the movable paper pressing member (plate) 8 in the third embodiment shown in FIGS. 7 and 8. FIG. 9 shows a released state and FIG. The state in which the recording material 2 is being fed is shown. In the released state of FIG. 9, the push-down lever 26 is a movable paper pressing member (plate).
8 is separated from the platen 16, and the movable paper pressing member 8 is separated (floated) from the platen 16 by its own elastic force. On the other hand, in the sheet passing state of FIG. 10, the push-down lever 26 presses the movable paper pressing member 8 against the guide surface (platen surface) of the platen 16, and the recording material (recording paper) 2 is moved to the platen by the movable paper pressing member 8. The paper is passed while being pressed against 16.

FIG. 11 is a schematic vertical sectional view of an embodiment in which a convex portion is provided on the carriage 3 when the recording material 2 is set with the left reference, and FIG. 12 is a schematic plan view of FIG.
FIG. 13 shows the recording head 4 as seen from the line 13-13 in FIG.
3 is a schematic cross-sectional view showing a carriage 3 and FIG. 11-
In FIG. 13, the recording material 2 is set on the left side, and the carriage 3 is provided with convex portions 28 and 29.

One of the protrusions provided on the carriage 3 is formed by a rotatable roller 28.
The position is set to a position where a gap c is formed between the movable paper pressing member 8 and the movable paper pressing member 8, as shown in FIG. It is desirable that the gap c be larger than the thickness of the recording material 2 used.
In FIG. 11, the dimension a indicates the platen 16 and the recording head 4.
And the dimension b indicates the distance between the movable paper pressing member (plate) 8 and the recording head 4. FIG. 12 shows the recording material 2 and the respective paper pressing members 8 when the recording material 2 is set on the left reference,
15 shows an arrangement relationship with 15. In FIG. 12, L _pp is the width of the recording material (recording paper), L _pr is the recording area, L _w is the right margin, and L _x is the width pressed by the movable paper pressing member 8 of the recording material 2. , Respectively.

In FIG. 13, which shows the recording head 4 and the carriage 3 as seen from the line 13-13 in FIG. 11, 29 is a convex portion provided on the opposite side of the carriage 3 in the moving direction of the roller 28. The portion 29 is a convex portion that slides on the upper surface of the fixed paper pressing plate 15. In FIG. 13, d indicates a recording area (range in which the ejection ports 82 are arranged) in the ink ejection portion (ejection port surface 81) of the recording head 4. That is, the roller (projection) 28 is provided on the right side of this d, and the projection 29 is provided on the left side of this d. The distance between the roller (convex portion) 28 and the ejection port array region d is the right end margin L _w.
To the pressing width L of the recording material 2 by the movable paper pressing member 8
it is desirable that less than a minus dimension (L _w -L _{x) x.}

14 and 15 show an embodiment in which a convex portion is provided on the carriage 3 when the recording material 2 is set arbitrarily or with reference to the center. FIG. 14 shows the recording material 2 and the movable paper pressing member (plate) 8. 2 is a plan view showing the relationship with FIG.
5 is a schematic sectional view showing the carriage 3 and the recording head 4. In FIG. 15, the protrusions 28 formed of rollers are provided on both left and right sides of the ejection port array region d, and the protrusions 29 for sliding the carriage 3 and the fixed paper pressing plate 15 are provided.
Are provided in the discharge port array region d.

According to each of the embodiments described above, it is possible to greatly reduce the occurrence of dirt on the recording material 2 and damage to the recording head 4 due to the rubbing between the recording material 2 and the recording head 4. Further, in the above-described embodiment, the protrusion 2 is formed on the carriage 3.
Although the case where 8 and 29 are provided has been described, these protrusions may be provided on the recording head 4. Convex portions 28, 29
If the recording head is provided with a paper pressing member (plate) 8,
Even when 15 is floated, there is an effect that these convex portions protect the array area of the ejection ports 82 of the recording head 4.

In the above embodiment, the case of automatic sheet feeding by the separating claw 19 has been described as an example, but the sheet feeding method in the present invention is not limited to such separating sheet feeding, The present invention can be similarly applied to any recording method as long as it is a recording apparatus provided with the paper feed paper guide 6 or a member equivalent thereto such as Duplo paper feed, belt paper feed, and manual paper feed. The same action and effect can be obtained.

As the standard setting method for the recording material 2 in the present invention, left standard, center standard, free standard, etc. can be freely adopted, and the present invention is not limited to the standard setting method for the recording material. Not something. Further, the recording paper 2 may be guided to the vicinity of the LF roller (paper feed roller) 13 by utilizing the paper feed paper guide 6 or a part of the flags 7 and 24. Therefore, it becomes possible to easily prevent or reduce the skew of the recording material 2 at the time of feeding.

In the above embodiments, the case where the present invention is applied to the ink jet recording apparatus has been described as an example, but the present invention is not limited to the wire dot type, heat sensitive type, thermal transfer type, laser beam type and the like. The same can be applied to the recording apparatus using the recording means of the method (3), and the same operation and effect can be obtained.

Further, in the present invention, in addition to a single-color recording apparatus for recording with one recording means, a color recording apparatus using a plurality of recording means for recording with different colors, or a plurality of recording means for recording with the same color but different densities. The same can be applied to the gradation recording apparatus using the recording means, and further to the recording apparatus in which these are combined, and the same effect can be achieved.

Further, according to the present invention, in the case of an ink jet recording apparatus, when a replaceable head cartridge in which a recording head and an ink tank are integrated is used, or when the recording head and the ink tank are separately provided, ink is supplied between them. The present invention can be similarly applied to any arrangement of the recording head and the ink tank, such as the case of connecting with a tube or the like, and the same effect can be obtained.

The present invention can be applied to an ink jet recording apparatus using a recording means (recording head) using an electromechanical transducer such as a piezo element, but among others, thermal energy is used. The present invention brings excellent effects in an ink jet recording apparatus that uses a recording means of a type that ejects ink. This is because such a system can achieve high density recording and high definition recording.

[0043]

As is clear from the above description, according to the first aspect of the invention, in the recording apparatus for recording on the recording material by the recording means, the paper feed sheet guide movable in the paper width direction of the recording material. And a movable paper pressing member movable in the carriage movement direction in association with the movement of the paper feed paper guide, so that the recording material is prevented from being contaminated due to contact or rubbing with the recording means or the carriage. It is possible,
Further, there is provided a recording apparatus capable of preventing abrasion and damage of the recording unit and defective ink ejection of the inkjet recording unit due to the contact and rubbing.

According to the inventions of claims 2 to 4, in addition to the structure of claim 1, the movable paper pressing member is formed as a part of the paper feed paper guide. Is configured such that the pressure contact force of the movable paper pressing member is relaxed when the movable paper pressing member moves relative to the paper feeding paper guide, or a part of the carriage or the recording unit is brought into contact with the movable paper pressing member or the movable paper pressing member. Since the convex portion that forms a slight gap with the paper pressing member is provided, it is possible to more efficiently prevent the recording material from being soiled due to contact or rubbing with the recording unit or the carriage. Provided is a recording apparatus capable of preventing wear and damage of the recording unit and defective ink ejection of the inkjet recording unit due to the contact and rubbing.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a recording apparatus according to a first embodiment of the present invention.

2 is a vertical cross-sectional view of the recording apparatus of FIG.

FIG. 3 is a schematic plan view of a main part of the recording apparatus of FIG.

FIG. 4 is a partial perspective view schematically showing the structure of an ink ejection portion of the recording unit in FIG.

FIG. 5 is a schematic vertical sectional view of a second embodiment of a recording apparatus to which the present invention is applied.

6 is a schematic plan view of a main part of the recording apparatus of FIG.

FIG. 7 is a schematic vertical sectional view of a third embodiment of a recording apparatus to which the present invention is applied.

8A and 8B are schematic vertical sectional views of the recording apparatus of FIG. 7 at different positions.

9 is a schematic vertical sectional view showing a state in which a movable paper pressing member of the recording apparatus of FIGS. 7 and 8 is released.

FIG. 10 is a schematic vertical cross-sectional view showing a state when the movable paper pressing member of the recording apparatus of FIGS. 7 and 8 is in operation.

FIG. 11 is a schematic vertical cross-sectional view of an embodiment in which a protrusion is provided on a carriage when a recording material is set with the left reference.

FIG. 12 is a schematic plan view of FIG. 11.

13 is a schematic cross-sectional view of the recording unit and the carriage taken along line 13-13 in FIG.

FIG. 14 is a schematic plan view showing the relationship between the recording material and the movable paper pressing member when the recording material is set arbitrarily or with reference to the center.

FIG. 15 is a schematic cross-sectional view showing a carriage and recording means when a recording material is set arbitrarily or with reference to the center.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Recording device 2 Recording material 3 Carriage 4 Recording means (recording head) 5 Position sensor 6 Paper feed paper guide 7 Flag 8 Movable paper pressing member (plate) 11 Paper feed roller 12 Front guide 13 LF roller (paper feed roller) 14 Pinch roller 15 Fixed paper pressing plate 16 Platen 17 Paper ejection roller 19 Separation claw 20 Sakiki plate 21 Drive shaft (also used as guide shaft) 23 Positioning groove member 24 Flag 25 Guide groove 26 Push-down lever 27 Lever flag 28 Convex part (roller) 29 Convex portion 62 Leading end bifurcated portion of paper feed sheet guide 63 Lower end protruding portion of flag 64 Bifurcated portion of push-down lever 81 Discharge port surface 82 Discharge port 84 Liquid path 85 Electrothermal converter

Claims (8)

[Claims] 1. A recording apparatus for recording on a recording material by recording means, wherein a paper feed sheet guide movable in the paper width direction of the recording material and a carriage movement direction in association with the movement of the paper feed sheet guide. A recording apparatus comprising: a movable paper pressing member that is movable. 2. The recording apparatus according to claim 1, wherein the movable paper pressing member is formed as a part of the paper feed paper guide. 3. The recording apparatus according to claim 1, wherein when the movable paper pressing member moves with respect to the paper feed paper guide, the pressure contact force of the movable paper pressing member is relaxed. 4. A convex portion, which is in contact with the movable paper pressing member or forms a slight gap between the movable paper pressing member and the movable paper pressing member, is provided in a part of the carriage or the recording means. The recording apparatus according to claim 1. 5. The recording apparatus according to claim 1, wherein the recording unit is an inkjet recording unit. 6. The recording apparatus according to claim 5, wherein the convex portion is provided in a region other than an area of an ink ejecting portion of a recording unit mounted on the carriage. 7. The recording apparatus according to claim 5, wherein the recording unit is an inkjet recording unit including an electrothermal converter that generates thermal energy used for ejecting ink. 8. The recording apparatus according to claim 7, wherein the recording unit ejects the ink from the ejection port by utilizing film boiling generated in the ink by the thermal energy generated by the electrothermal converter.