JPH02201360A - image forming device - Google Patents

Abstract

PURPOSE:To securely prevent the occurrence of a paper jam, etc., by locking a separation mechanism, which peels a microcapsule paper from a developing paper, in a separable position, and then performing an image forming operation. CONSTITUTION:A capsule paper feeding roller 27 is disposed on the downstream side of a pressure developing device 21, and the separation mechanism 28 for peeling the microcapsule paper 15 from the developing paper 22 is disposed on the downstream side of the capsule paper feeding roller 27. An image forming device is provided with a lock detecting switch 37 which detects whether the separation mechanism 28 is in the separable position or not; a link plate 33 abuts on the lock detecting switch 37, and an image can be formed only when the switch 37 is turned on. Therefore, since the device can be operated with the separation mechanism 28 completely locked in an image forming position, defective separation of the capsule paper 15 and the occurrence of a paper jam, which result from incomplete lock, are securely prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image forming apparatus, and particularly to an image forming apparatus having a separation mechanism that separates a long paper such as microcapsule paper from a cut paper such as color developer paper. The present invention relates to an image forming apparatus.

[Conventional technology]

Conventionally, desired color images have often been formed using microcapsule paper carrying microcapsules and developer paper coated with a color developer.

Such an image forming apparatus is, for example, disclosed in Jitsugan Shof, 2-
As shown in the specification of No. 189350, a halogen lamp irradiates a document placed on a document table glass, and the reflected light is imaged on microcapsule paper to form a latent image. By overlapping the color developer paper on the paper and applying pressure between the microcapsule paper and the color developer paper using a pressure developing device, the microcapsules are destroyed and the a image on the microcapsule paper is developed and transferred onto the color developer paper. It is something that makes you Then, the microcapsule paper and the color developer paper are separated into layers by a separation mechanism, and this color developer paper is heat-fixed by a heat fixing device and then discharged to the outside of the device. It is designed to be rolled up.

The separation mechanism of the image forming apparatus is held so as not to obstruct the passage of the microcapsule paper when automatically passing the microcapsule paper into the SA storage, and when forming an image, the separation mechanism is attached to the developer paper. Almost lI! The blades can be switched to guide the microcapsule paper in intersecting directions.

[Problem to be solved by the invention]

However, in the conventional image forming apparatus described above, there is no means for detecting whether or not the separation mechanism for separating the microcapsule paper and the color developer paper is reliably locked at a separable position. H
are doing.

The present invention has been made in view of the above-mentioned points, and it is possible to reliably detect that the separation mechanism is locked in the separable position, and prevent the occurrence of paper separation defects, paper jams, etc. The object of the present invention is to provide an image forming apparatus that can perform the following functions.

[Means to solve the problem]

In order to achieve the above object, an image forming apparatus according to the present invention includes:
A long sheet of paper on which a latent image has been formed by focusing light from the original document and a cut sheet of paper are overlapped and pressure is applied to transfer the latent image on the long sheet of paper onto the cut sheet of paper. A pressure developing device is disposed downstream of the pressure developing device to separate the long paper and the cut paper, and a separation mechanism is installed downstream of the pressure developing device to determine the automatic paper feeding position and separation of the long paper.
The image forming apparatus is provided with a lock detection device for detecting that the separation mechanism is locked in a separable position. be.

[Effect]

According to the present invention, since the lock detection device is provided to detect that the separation mtx is locked in the separable position, the image forming operation is performed while the separation mechanism is not locked in the separable position. Therefore, long paper such as microphone capsule paper and cut paper such as developer paper can be properly separated, and the occurrence of paper jams etc. can be reliably prevented. It is something that can be done.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 5.

FIG. 1 shows an embodiment of the present invention, in which a document table glass 2 on which a desired document is placed face down is disposed on the top surface of an image forming apparatus 1 so as to be movable in the horizontal direction in the figure. A document table cover 3 is attached to the upper surface of the document table glass 2 so as to be openable and closable. A halogen lamp 4 as a light source extending in a direction perpendicular to the direction of movement of the original platen glass 2 is disposed inside and above the image forming apparatus 1. Near the halogen lamp 4, a reflective #125 lamp is provided. are arranged so as to surround the halogen lamp 4. Further, on the opposite side to the irradiation direction of the halogen lamp 4, a reflector 6 is arranged to avoid reflecting light that is not directly irradiated onto the document from the halogen lamp 4 in the direction of the document. The light emitted from the original platen glass Sj is irradiated directly or indirectly through the reflector 6 to the original platen glass 2, and as the original platen glass 2 moves in the left and right direction lj, the left end of the original platen glass Sj The entire surface can be sequentially irradiated from the beginning to the right end. A fan 7 and a louver 8 are disposed on the right side of the halogen lamp 4 to take in air from the outside, so that the outside air can be efficiently applied to the document table glass 2.

Further, a filter 9 is disposed below the halogen lamp 4 to change the light transmission characteristics according to the sensitivity characteristics of the microcapsule paper, and a lens mounting plate 10 is disposed below the halogen lamp 4. A lens 11 is mounted on the document platen glass 2 and is capable of making minute angle adjustments to the optical path of light reflected from the document placed on the document table glass 2.

On the downstream side of the optical path of the lens 11, there is a mirror mounting plate 12 that is movable in the vertical direction to adjust the optical path length.
is installed on this mirror mounting tli212,
Two reflecting mirrors 13 are provided to change the direction of the light focused by the lens 11 by 180@. Furthermore, an exposure table 14 is disposed above the rear side mirror 13, and the light from the second lens 11 is directed to the microcapsule paper 1 which is in close contact with the exposure table 14F.
The image is formed on 5.

Further, inside and above the image forming apparatus 1, a cartridge 17 for storing a long microcapsule paper 1.5 wound around a cartridge/nozzle cover 16 is removably disposed. A plurality of conveyance rollers 18.degree. 18 are disposed below the cartridge 17 to convey the microcapsule paper 15 pulled out from the cartridge 17 to the lower surface of the exposure table 14 at a predetermined speed. The transport speed of the microcapsule paper 15 is controlled at a constant level by the fine feed roller 18, and is made to match the moving speed of the original platen glass 2, so that the microcapsule paper 15 is transported at a constant speed when passing through the exposure table 14. The capsule paper 15 has a predetermined line lrl l
τ! are formed sequentially. In addition, microcapsule paper 15
The photosensitive surface of is directed downward.

On the downstream side of the exposure table 14, there is disposed a pressure developing device 21 (F) that houses one small-diameter roller and a backup roller 20 that is pressed against the second small-diameter roller 19. A color developer paper cassette 23 for storing color developer paper 22 in the form of cut paper is disposed.

A paper feed mechanism 24 for feeding the developer paper 22 one by one is disposed above the developer paper cellar 123, and the developer paper 22 is placed near the developer paper cell 1-2'. A developer paper roller 25 for transporting the color developer paper 22 to the input side of the pressure developing device 21 and a resist gate 26 for aligning the leading end of the color developer paper 22 are provided.

The pressure developing device 21 is supplied with the microcapsule paper 15 and the color developing paper 22 in a state in which they are in close contact with each other and are integrated, and the microcapsule surface on which the latent image of the microcapsule paper 5 is formed and The unexposed microcapsules are destroyed when the developing paper 22 is sandwiched between the small diameter roller 19 and the buffer knob roller 20 and pressure is applied while the developer coated surface of the developing paper 22 is in contact with the inside. An image is formed on the color developing paper 22.

Furthermore, a capsule paper feed roller 27 is disposed downstream of the pressure developing device 21. On the downstream side of this capsule paper feed roller 27, the above-mentioned Yakuro capsule paper 15 is provided.
A separation mechanism 28 for separating the color developer paper 22 from the color developer paper 22 is provided.

Second separator! #s28 is a pair of U-shaped frames 29 arranged oppositely, as shown in FIGS. 2 to 4.
．． 29, and inside these two frames, there are 2
Two idle rollers 30.degree. 30 are each rotatably mounted. A rotating shaft 31 is attached to both ends of the two frames, and the frame 29 is rotatable about the rotating shaft 31. Also,
A link support piece 32 is integrally formed at one end of the two frames, and two link plates 33, 33 are each swingably connected to this link support piece 32. The tip of the link plate 33 is connected to a frame of the image forming apparatus 1 (not shown), and one edge of the link plate 33 on the tip side is connected to the upper toll direction by a switching lever (not shown). A switching wire 34 that is driven by is connected.

A spring 35 for biasing the link plate 3 downward is connected to the lower edge of the link plate 33, and as shown in FIG. A stopper 36 that comes into contact with the lower edge of the link board 33 to restrict the swinging of the link board 330 during normal image formation.
is located.

'' - Below the link plate 33 on the side of the frame 29, the link plate 33 is in contact with the stopper 36, and it is detected whether the mechanism 28 is in the separable position or not. A lock detection switch 37 is provided so that image formation can be performed only when the link plate 33 is in contact with the lock detection switch 37 and the lock detection switch 37 is turned on. Also,
The microcapsule paper 15 is attached to each of the above idle rollers 30.
It is inserted between.

When automatically passing the microcapsule paper 15, the separation mechanism 28 is pulled by the switching wire 34 or -L/j to the frame 20 via the link plate 33 by operating the switching lever. rotates in the opposite direction, so that the microcapsule paper 15 is held in a straight line without contacting each idle roller 30, as shown in FIG. When performing normal image formation, by removing the upward pulling force on the switching wire 34, the link plate 33 swings downward until it comes into contact with the stopper 36 due to the biasing force of the spring 35. The frame 29 rotates clockwise, and as shown in Fig. Zt, the microcapsule paper 15 is held in a crank shape by the idle roller 37', and the lock detection switch 37 is turned on. There is.

Further, above the separation mechanism 28, the separation mechanism 28
Microcapsule paper 1 peeled from developer paper 22 by
A meandering adjustment roller 38 that guides the microcapsule paper 15 is disposed, and three winding shafts for winding the microcapsule paper 15 are disposed at the upper end of the meandering adjustment roller 38.

Further, on the F flow side of the separation mechanism 28, the color developer paper 2
A heat fixing device 40 for fixing the image formed on the paper 2 is disposed, and a hollow heat roller 41 having a heater inside and a paper discharge roller 42 are housed inside the heat fixing device 40, respectively. There is. Further, on the downstream side of the heat fixing device 40, there is provided a paper discharge tray 4' for receiving the developer paper 22 after being fixed.

Next, the operation of this embodiment will be explained.

First, open the document platen cover 3 and place a document on the document glass 2''-, and then operate the start button (not shown) to move the document glass 2 to the right so that the left edge of the document glass 2 is Facing the light source (n Stop with FIX. Then, with the halogen lamp 4 turned on, move the document platen glass 2 to the left υ・. The light emitted from the halogen lamp 4 will be reflected by the document. After being reflected by the filter 9, lens 11 and each reflecting mirror 13, it is transported from the cartridge 17 to the exposure table 14 by each conveying roller 18.
An image is formed on the microcapsule paper 15 conveyed to the tonneau j. At this time, the microcapsule paper 15 is moved to the left on the exposure table 14 at the same speed as the moving speed of the original platen glass 2, so that the microcapsule paper 15 has the following properties:
The image on the document is formed as a latent image.

Then, 111'-
), the developer paper 22 is taken out from the developer paper cassette 23 by the paper feeding mechanism 24, aligned by the registration gate 26, and then transported by the developer paper roller 25 toward the pressure developing device W21, where the exposed microcapsule paper 15 is taken out from the developer paper cassette 23. The image is supplied to the pressure developing device 21 in a superimposed state. By this pressure phenomenon device 21, the microcapsule paper 15 and the color developing paper 22 are sandwiched between the small diameter roller 19 and the backup roller 20 and pressurized. The image is developed and transferred onto developer paper 22.

After that, the microcapsule paper 15 and the color developing paper 22 are
The microcapsule paper 15 is continuously fed by the capsule paper feed roller 27 and is peeled off from the developer paper 22 by the separation mechanism 28 . Then, this color developing paper 22 is transferred to a heat fixing device 40.
After being thermally fixed, the microcapsule paper 15 is discharged to a paper discharge tray 43 outside the apparatus, and the peeled microcapsule paper 15 is sequentially wound around a winding shaft 39 via a meandering adjustment roller 38. Furthermore, when the document table glass 2 finishes moving to a position where its right end faces the light source, copying of the document is completed and the halogen lamp 4 is turned off.

Therefore, in this embodiment, the above amount + 11tll
A lock detection switch 37 is provided to detect whether or not the child 128 is in a separable position, and an image is generated only when the link plate 33 is in contact with the lock detection switch 37 and the lock detection switch 37 is turned on. Since the separation mechanism 28 is reliably locked at the image forming position, the apparatus can be operated, and microcapsule paper 15 due to incomplete locking can be removed.
It is possible to reliably prevent separation defects and paper jams.

If it is detected that the separation mechanism 28 is incompletely locked before starting the image forming operation, for example, each feeding roller 18 may be driven while the winding plate 39 is stopped. By loosening the capsule paper 15,
It is also possible to automatically lock the separation mechanism 28 by swinging the link plate 33.

Further, FIG. 5 shows another embodiment of the present invention, in which a lock detection switch is not provided in the separation mechanism 28 portion, and the microcapsule paper is provided between the separation mechanism 28 and the meandering adjustment roller 38. A tension sensor 44 is disposed on a path through which the image forming apparatus 15 passes during image formation.

In this embodiment, when the separation mechanism 28 is in the separable KC position, it is possible to detect that the microcapsule paper 15 is in contact with the tension sensor 44 and the separation mechanism 28 is locked. If the lock is incomplete, the transport path of the microcapsule paper 15 will change and it will no longer come into contact with the tension sensor 44, so that it can be detected that the microcapsule paper 15 is not locked.

In addition, when automatically locking the separation mechanism 28, first take a predetermined amount of microcapsule paper 15 with the winder 39, and if the tensicon sensor 44 does not detect the microcapsule paper 15, the separation mechanism 28 is automatically locked. If it is determined that the locking mechanism 28 is defective and the tension sensor 44 detects the microcapsule paper 15, it is determined that the microcapsule paper 15 is simply slack. If it is determined that the locking of the separator groove 28 is defective, the winding operation by the three winding shafts is stopped, and the microcapsule paper 15 is slackened by the conveying roller. The separation mechanism 28 can be automatically locked. Thereafter, the winding shaft 39 is driven to wind up the microcapsule paper 15, and the separation mechanism 2
8 is locked, the tension sensor 44 can detect the microcapsule paper 15, and the predetermined 1
If the microcapsule paper 15 cannot be detected by the tension sensor 44 after the roll Jν, it is determined that an abnormality has occurred, and a predetermined error message is displayed.

Therefore, in this embodiment, as in the above embodiment, the separation mechanism 28 can be completely locked, the microcapsule paper 15 can be separated properly, and the occurrence of paper jams etc. can be prevented. be able to.

Note that the present invention is not limited to the above embodiments,
Various changes can be made as necessary.

〔Effect of the invention〕

As described above, the image forming apparatus according to the present invention is provided with a lock detection device that detects that the separation mechanism is locked in the separable position. Therefore, it is possible to properly separate long paper such as microphone capsule paper and cut paper such as developer paper, and to ensure that paper jams etc. do not occur. It has the effect of being able to prevent such problems.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view, FIG. 2 is a perspective view of the separation mechanism, and FIG. 3 is a side view of the separation mechanism during automatic paper feeding. 4 are side views of the separation mechanism during image formation, and FIG. 5 is a schematic configuration diagram of the separation mechanism portion. 1... Image forming device, 14... Exposure table, 15...
° Microcapsule paper, 18... Conveyance roller, 21.
... Pressure developing device, 22 ... Color developer paper, 28 ... Separation mechanism, 29 ... Frame, 30 ... Idle roller, 331. . Link plate, 36... Stopper, 37... Lock detection switch, 38... Meandering adjustment roller, 39... Winding shaft, 40... Heat fixing device, 44... Tension sensor.

Claims (1)

[Claims] A long sheet of paper on which a latent image has been formed by focusing light from the original document and a cut sheet of paper are overlapped and pressure is applied to transfer the latent image on the long sheet of paper onto the cut sheet of paper. A pressure developing device is disposed downstream of the pressure developing device, and a separation mechanism for separating the long paper and the cut paper-like paper is provided at an automatic sheet feeding position and a separation possible position for the long paper. What is claimed is: 1. An image forming apparatus that is switchably arranged, and further comprising a lock detection device that detects that the separation mechanism is locked in a separable position.