JPH03175449A - Image forming device - Google Patents

Abstract

PURPOSE:To simplify the constitution of a device, to miniaturize the device and to reduce the cost thereof by fixing and ejecting a microcapsule sheet and a receiver sheet without separating them. CONSTITUTION:Light emitted from a halogen lamp 3 is reflected on an original and image-formed on the microcapsule sheet 37 positioned below an exposure table 19. Then, an image on the original is formed as a latent image. As the result that an original platen glass 2 is moved in a left direction, a color developing sheet 38 is taken out from a brown sheet cassette 32 by a half moon roller 33 and supplied to a pressure developing device 20 under a state that it is overlapped on the sheet 37 already exposed. Then, the latent image on the sheet 37 is transferred on the sheet 38. The sheets 37 and 38 are ejected to the outside of a copying machine 40 while they are overlapped after they are thermally fixed by a thermal fixing device. Since the sheets 37 and 38 is thermally fixed and ejected without being separated, the cost of the device is reduced and the device is miniaturized.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an image forming apparatus.

C. Prior Art Conventionally, the capsule sheet and the receiver sheet were separated after pressure development, the capsule sheet was wound up into a roll inside the main body, and only the developed receiver sheet was discharged after being heat-fixed.

[Problems to be Solved by the Invention] However, in order to wind up a capsule sheet, it is necessary to (1) separate mechanism for the capsule sheet and receiver sheet, (2) space for the rolled capsule sheet roll, and (3) capsule A sheet winding mechanism is required (
1) and (3) have made it difficult to reduce costs, and (2) has made it difficult to downsize.

The present invention has been made to solve the above-mentioned problems, and provides a small and inexpensive image forming apparatus by thermally fixing a capsule sheet and a receiver sheet as they are without separating them, and then discharging them. It is intended to.

[Means for Solving the Three Problems] To achieve this object, the image forming apparatus of the present invention has means for heat fixing and ejecting the capsule sheet without separating it from the receiver sheet.

[Function] According to the present invention having the above configuration, there is no need for force, a device for separating the capsule sheet and the receiver sheet, and a device for winding up the capsule sheet.

[Example 1] Hereinafter, an example embodying the present invention will be described with reference to the drawings.

FIG. 1 is a schematic cross-sectional view of a photosensitive pressure-sensitive copying machine that is capable of full-color copying. Note that photosensitive paper (consisting of microcapsule paper and color developer paper) that enables such copying has been proposed in Japanese Patent Application Laid-Open No. 58-88739, etc.
It will not be detailed here.

As shown in the figure, the photosensitive and pressure-sensitive copying machine 40 has a top plate that is positioned below a horizontally movable original platen glass 2 and an original platen cover 1, and a desired original is placed face down on the original platen glass 2. It can be left in the same position. A light source consisting of a halogen lamp 3 extending in a direction perpendicular to the moving direction of the original platen glass 2 and a semi-cylindrical anti-nJ m 4 arranged so as to surround it is fixed to the upper right side of the copying machine 40. is,
Light 11 is emitted in a line toward the document table glass 2.

Therefore, the light emitted from the halogen lamp 3 can sequentially illuminate the entire surface of the document table glass 2 from the left end to the right end by moving the document table glass 2 in the left-right direction. The light emitted from the light source passes through the transparent original platen glass 2 and is reflected by the original placed on it. A document table cover 1 is provided to cover the document table.

In addition, in order to use the light emitted from the halogen lamp 3 to irradiate the original with high efficiency, a beam flap 5 is arranged to the left of the light source to reflect the light that is not directly directed toward the original and use it again to irradiate the original. .

To the right of the halogen lamp are a fan 6 and a louver 7 that draw air from the outside. As a result, air can be efficiently applied to the document table glass 2. Light emitted from the halogen lamp 3 and reflected from the document placed on the document table glass 2 passes through the filter 8 and enters the lens 9 .

The filter 8 is used to change the light transmission characteristics according to the sensitivity characteristics of the microcapsule paper 37 and adjust the color tone of the copied image. The lens 9 is attached to a lens mounting plate 10, and allows minute angle adjustment with respect to the optical path.

The light focused by the lens 9 is turned 180° by two reflecting mirrors 1, and is imaged on a microcapsule paper 37 closely positioned below the exposure table. Two reflecting mirrors 11 are fixed to a mirror mounting plate 12, and the optical path length and focus are adjusted by finely adjusting the mounting position of the mirror mounting plate 12.

On the other hand, the long micro-cover paper 37 is attached to the cartridge shaft 1.
4 and is housed in a removable cartridge 13 disposed below the document table glass 2, one end of which extends to a number of rollers and a pressure developing device 20.

That is, the microcapsule paper 37 coming out from the lower part of the cartridge 13 is transferred to the feed roller 15. Taiko roller 1
7 and passes under one exposure stage, then is supplied to the pressure developing device 20. Thereafter, the microcapsule paper 37 that has passed through the pressure horn developing device 20 has its leading end immediately after the capsule paper feed roller 22 .

Immediately after the capsule paper feed roller 22 is a capsule paper cutter 23, which allows the capsule paper to be cut after each copy.

The unexposed microcapsule paper 37 after leaving the cartridge 13 is maintained in an unexposed state by the light shielding cover 16.

The transport speed of the microcapsule paper 37 is controlled to be constant by the capsule paper feed roller 22, and is made to match the moving speed of the document platen glass 2, so that the microcapsule paper 37 is Latent images of predetermined lines of the document are sequentially formed.

Further, a developer paper cassette 32 containing cut paper type developer paper 38 is provided below the pressure developing device 20, and the developer paper 38 is taken out one by one by a half-moon roller 33, and then transferred to the developer paper roller 34 and the resist. After the leading end is aligned by the gate 35, the paper is transported to the paper entrance of the pressure developing device 20.

Therefore, the pressure developing device 20 includes the microcapsule paper 37.
The color developer paper 38 and the color developer paper 38 are supplied in a state where they are in close contact with each other and are integrated. The pressure developing device 20 is composed of a small diameter roller 21 and a backup roller 31. The microcapsule surface on which the latent image of the microcapsule paper 37 is formed and the color developer paper 3
The roller 8 is sandwiched between the small-diameter roller 21 and the backup roller 31 while being in contact with the developer-coated surface of 8 on the inside, and pressure is applied thereto. This pressure destroys the unexposed microcapsules and forms an image on the developer paper 38.

The microcapsule paper 37 and color developer paper 38 that have come out of the pressure developing device are conveyed by a capsule paper feed roller 22.
After the color development is promoted by the heat fixing device to form an image, the paper is delivered to the paper discharge tray 27. At this time, the capsule paper 37 is cut by the capsule paper cutter 23 at the end portion of the color developer paper 38, so that the capsule paper carried out at the same time as the color developer paper has approximately the same length as the color developer paper. The heat fixing device is composed of a hollow heat roller 29 having a heater 30 therein and a color developing paper feed roller 28.

The operation of the device configured as described above will be explained below.

Now, after opening the document platen cover 1 and placing the original on the document platen glass 2, if you press the start button (not shown), the document platen glass 2 will first move to the right in FIG. The base glass 2 stops at a position where the left end faces the light source. After that, with the halogen lamp 3 turned on,
Move the document table glass 2 to the left. The light emitted from the halogen lamp 3 is reflected by the original, then reflected by the filter 8, lens 9, and two reflection mirrors 11, and then transferred to the microcapsule paper 37 located below the exposure table 19.
imaged on top. At this time, the microcapsule paper 37 is moved to the left one step above the exposure platform at the same speed as the moving speed of the document table glass 2, so the microcapsule paper 37
An image on the original document is formed as a latent image on 7.

As the platen glass 2 moves to the left, the half-moon roller 33 takes out the developer paper 38 from the developer paper cassette 32 and supplies it to the pressure developing device 20 in a state where it is overlapped with the exposed microcapsule paper 37. The latent image on the microcapsule paper 37 is developed and transferred onto the developer paper 38. The microcapsule paper 37 and the color developer paper 38 are thermally fixed by a heat fixing device while being overlapped, and then discharged from the copying machine 40 . At this time, the microcapsule paper 37 is cut near the end of the color developer paper 38 by the capsule paper cutter 23 immediately after the capsule paper feed roller 22. When the document platen 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 3 is turned off.

At this time, the image is transferred from the developer paper 38 to the microcapsule paper 3.
Obtained by peeling off 7.

Note that the capsule paper 37 does not need to be long like in this embodiment, and may be cut paper.

[Effects of the Invention] As is clear from the detailed description above, the present invention fixes and discharges the microcapsule sheet and the receiver sheet without separating them, and the conventional microcapsule sheet is separated from the receiver sheet. The structure is simpler than that of the winding method, and since no space is required to wind up the microcapsule sheet, it is possible to downsize and reduce costs.

[Brief explanation of the drawing]

The drawing is a schematic cross-sectional view of the present device showing an embodiment embodying the present invention. In the figure, 23 is a microcapsule paper cutter.

Claims (1)

[Scope of Claims] 1. An image forming apparatus using a light-sensitive pressure-sensitive recording sheet on which a latent image is formed by exposure to light, and a receiver sheet that develops color by being overlapped with the light-sensitive pressure-sensitive recording sheet and pressurized. An image forming apparatus comprising: means for fixing and ejecting the photosensitive pressure-sensitive recording sheet and the receiver sheet without separating them.