JPH0292565A - Image recorder - Google Patents

Abstract

PURPOSE:To prevent a jamming in feeding recording sheet by fixing a manual level unmovably during an image recording so as to prevent the recording sheet from being cut. CONSTITUTION:During an image recording, an electromagnet 37 is driven by receiving an electric signal from a control part, whereby a plunger 38 is attracted. Then, an arm 30 rotates against the force of a spring 36 by a slit 34 engaging with a pin 39, and an arm part 31 moves to abut on a tail part 14a of a manual lever 14. Therefore, if the manual lever 14 is tried to be pressed down, it cannot be rotated because the tail part 14a abuts against a folded part 31a of the arm part 31 of the arm 30. On the other hand, the electromagnet 37 is not driven during a non-image recording ; therefore, the folded part 31a of the arm 30 is rotated downwards by the spring 36 to make the manual lever 14 rotatable, and the action of cutting a recording sheet 6 can be performed.

Description

Detailed Description of the Invention [Field of Application in Business A] The present invention relates to an image recording device such as a facsimile machine or a printer device that uses a roll-shaped recording sheet, and more specifically, to an image recording device that uses a roll-shaped recording sheet. The present invention relates to an image recording device having a manual cutting means.

[Prior Art] Conventionally, long recording sheets wound into a roll have been used in facsimile machines and the like.

After the recording section finishes recording the image, this recording sheet is cut into a specified length by a cutting section provided at the rear of the recording section. The recording sheet is automatically cut by a cutting device equipped with a cutter drive mechanism using a dedicated motor. Furthermore, low-priced facsimile machines do not have a cutting device, but instead have an exterior part near the recording sheet ejection port shaped like a saw blade, and the recording sheet is pressed against this to cut the facsimile machine. Furthermore, there is a device that is equipped with a cutting device, but cuts the recording sheet by moving a manual lever to drive a cutter without using a dedicated motor as described above.

[Problems to be Solved by the Invention] The present invention solves the problems of the image recording apparatus having the above-mentioned cutting means that moves the cutter using a manual lever. A device that cuts the recording sheet manually by moving a cutter with a bar is cheaper than one that uses a dedicated motor, takes up less space, and
There is an advantage that there is no risk of cutting the grains by cutting them properly, unlike devices that cut the recording sheet by pressing the outer part into a saw blade shape. However, if you accidentally or unconsciously move the manual lever too early while receiving a facsimile or printing out a printout from a printer, the tip of the recording sheet cut by the cutter will be ejected as it is, but the recording sheet will not be recorded. The latter part of the sheet gets jammed inside the machine because the sheet conveyance path is blocked by the cutter during discharge. However, since this cannot be seen from the outside, there is a problem in that the user does not notice that the sheet is jammed, and therefore cannot record the next output.

[Means for Solving the Problems] The present invention solves the above-mentioned problems, and includes a cutting means for cutting the recording sheet with a pair of blades that open and close relative to each other, provided on the downstream side of the recording section, At least one of the blades is configured to be linked to the movement of a manual lever provided near the recording sheet ejection port, and a blocking means is provided to prevent the manual lever from operating during recording. It is something that exists.

[Function] According to the present invention, a pair of blades including a fixed blade and a movable blade provided on the downstream side of the recording section of the recording device can cut a recorded recording sheet to an arbitrary length or a predetermined length. However, if you try to cut the recording sheet that is being ejected from the ejection port while the image is still being recorded, the manual lever is locked so that it does not move, so you cannot cut it. I can't do that.

[Embodiment] FIGS. 1 to 5 show an embodiment in which the present invention is applied to an image recording apparatus using a thermal recording method.

This will be explained in detail below with reference to the drawings.

In FIG. 1, a recording head 1 has a plurality of heating elements 1a that selectively generate heat according to recording information from a control section (not shown), and forms a recorded image on a recording sheet 6 by the heat generated. 2 is a platen roller. 3 is a suppression spring, which biases the recording head 1 rotatably attached to -1+1+4, and presses the recording head 1 onto the recording sheet 6.
It is pressed against the platen roller 2 via. 5 is a side plate of the main body. Reference numeral 6 denotes a recording sheet wound into a roll, and recording is performed by unwinding the recording sheet from its leading end. 7 is a recording sheet guide, which is placed in front of the platen roller 2;
In order to be able to smoothly introduce the record sheet,
It is bent in the shape of a ``.'' 8 is a cutter arm for driving the cutter 20, and is formed in a fork shape. This cutter arm 8 is rotatably supported by @9,
A part of the rotary blade 22 of the cutter 20 is connected to the connecting screw 10 and a screw hole 21 provided on the side surface of the rotary blade 22 .

Further, a driving pin 11 is provided to protrude from one end of the forked cutter 20. The drive pin 11 is a manual lever 14 which will be described later.
The cutter arm 8 is driven by receiving a driving force according to the movement of the manual lever 14.

A hook portion 12 is provided at the other end. Hook part 12
A tension spring 13 is attached between the main body side plate 5 and the tension spring 13, and this tension spring 13 biases the rotary blade 22 of the cutter 20 in the direction of opening.

Reference numeral 14 denotes a manual lever, which is formed entirely in an oval shape. The manual lever 14 is rotatably supported on a shaft 15 fixed to the main body side plate 5 near the intersection of the two sides of the oval shape.

One end of the manual lever 14 is formed so that it can be easily operated by hand, and is covered with, for example, a plastic cap. Also, one end of this operating side is provided near the recording sheet discharge port.

A cam surface 19 is formed between one end of the operating side of the manual lever 14 and the glaze 15 and on the surface that comes into contact with the drive bottle 11.

A hook portion 16 is formed at the other end of the manual lever 14, and a tension spring 17 is attached to the hook portion 16 between it and the main body side plate 5. The tension spring 17 biases the rotary blade 22 of the cutter 20 in the direction of opening via the cutter arm 8. Further, the stopper 18 restricts rotation of the manual lever 14 by the tension spring 17. The rough cutter 20 is composed of a rotary blade 22 that rotates around a shaft 9 and a fixed blade 23.

Further, the cutter 20 is provided on the exit side from the intersection of the recording head 1 and the platen roller 2 constituting the recording section, and the rotary blade 22 rotates about the shaft 9 in conjunction with the rotation of the manual lever 14. The rotary blade 22 and the fixed blade 23 are configured to mesh with each other to cut the recording sheet 6.

Reference numeral 24 denotes a recording sheet guide, which is provided between the platen roller 2 and the cutter 20 and guides the recorded recording sheet 6.
The tip is bent so that it can be smoothly introduced into the cutter 20.

Reference numeral 25 denotes a recording sheet holder, which is formed into a tray shape on which the recording sheet 6 wound into a roll can be placed.

26 is a main body cover. Reference numeral 27 denotes a recording sheet discharge port provided in the main body cover 26 near the cutter 20.

Next, the arm 30 is rotatably supported by a glaze 32 fixed to the side plate 5 of the main body. This arm 30 has arm parts 31, 33 bent at right angles, and the arm part 33 is provided with an elongated hole 34 and a hole 35 for hanging a spring. Spring 3
6 is attached between this hole 35 and the main body side plate 5.

37 is an electromagnet which attracts the plunger 38 in the horizontal direction in the figure in response to an electric signal given from a control section (not shown). The bottle 39 provided on the plunger 38 is connected to the arm 3
0 is engaged with the elongated hole 34.

Now, the operation will be explained next.

The recording sheet 6 wound into a roll is guided by a recording sheet guide 7 while being rewound and introduced into the image recording section. The recording section is composed of a platen roller 2 and a recording head 1, and the introduced recording sheet 6 is pressed against the platen roller 2 side by a recording head I, and the recording is performed by the heat generated by the heating element 1a provided in the recording head 1. The edges are drawn out one after another.

After the image recording is completed, the recording sheet 6 is placed in the recording sheet guide 2.
4, the cutter 20 passes between the fixed blade 23 and the rotary blade 22 and is discharged to the discharge port 27. When image recording is completed, the recorded portion is sent forward beyond the cutter 20 and stopped.

Cutting of the recording sheet 6 is performed only by pushing down the manual lever 14.

When one end of the operating side of the manual lever 14 is manually driven in the downward direction (in the direction of arrow a in FIG. 2), the manual lever 14 rotates about the shaft 15.

With this rotation, the driving force is transmitted to the cutter arm 8 through the drive pin 11 that is in contact with the cam surface 19 provided on the manual lever 14.
transmitted to.

The cutter arm 8 is pulled by the tension spring 13 by the transmitted driving force.
The recording sheet 6 is rotated about @9 in the direction of the arrow in FIG.

After cutting, by releasing your hand from the manual lever 14, the cutter arm 8 and the manual lever 14 are released by the bow spring 13.1.
Due to the elasticity of 7, each returns to its original position and remains stationary.

By the way, when the manual lever 14 is pressed down during image recording and the recording sheet 6 being ejected is attempted to be cut, as shown in FIG. Bend as shown in the figure to
The cutter 20 gets jammed at the front, and then the sheet 6
is no longer ejected and becomes jammed. Therefore, during image recording, the electromagnet 37 is driven in response to an electric signal from the aforementioned control section (not shown), and the plunger 38 is attracted. Then, the arm 30 rotates against the spring 36 due to the elongated hole 34 engaged with the pin 39, and comes to a position where the arm portion 31 comes into contact with the pressure portion 14a of the manual lever 14. Therefore, even if you try to push down the manual lever 14 at this time, the wet part 14a will touch the bent part 31 of the arm part 31 of the arm 30.
a, and the manual lever 14 cannot be rotated.

In addition, outside the image recording device, as shown in FIG. 2, since the electric 6i1 stone 37 is not driven, the bent portion 31a of the arm 30 is rotated downward by the spring 36, and the manual lever 14 is enabled to rotate. The cutting operation of the recording sheet 6 becomes possible.

[Effects of the Invention] As explained above, according to the image recording device of the present invention,
During image recording, the manual lever is fixed so that it cannot be rotated so that the recording sheet cannot be cut, which prevents recording sheet conveyance jams (e.g. paper jams) and improves operational reliability. .

[Brief explanation of the drawing]

FIG. 1 is a side view of an image recording apparatus according to an embodiment of the present invention, and FIG. 2 is an explanatory diagram of its operation. Further, FIG. 3 is an explanatory diagram of the main part, FIG. 4 is a cross-sectional view showing the cutter driving part, and FIG. 5 is an explanatory diagram of the operation of the main part by the conventional device. In the figure, 1 is the recording head, 2 is the platen roller, 5 is the main body side plate,
6 is a recording sheet, 8 is a cutter arm, 9 is a rotating shaft of the cutter arm, 1o is a connecting screw, 11 is a drive pin, 13 is a tension spring, 14 is a manual lever, 15 is a rotating shaft of the manual lever, 17 is a tension spring , 18 is a stopper, 19 is a cam surface,
2o is a cutter, 22 is a rotary blade, 23 is a fixed blade, 26 is a main body cover, 27 is a recording sheet discharge port, 3o is an arm, 3
2 is the rotating shaft of the arm, 36 is a spring, 37 is an electromagnet, and 38 is a plunger.

Claims (1)

[Claims] (1) An image recording device for recording an image on a rolled recording sheet, comprising a recording means for recording an image on the recording sheet, and a means for ejecting the recording sheet on which the image has been recorded by the recording means. a cutting means for cutting the recording sheet with a pair of blades that are relatively open/closed and provided on the downstream side of the recording means with respect to the conveying direction of the recording sheet; a manually operated lever for moving at least one of the blades to engage the other blade in order to cut the blade, and a blocking means for preventing movement of the manually operated lever during image recording. An image recording device comprising: