JPS6397956A - Photosensitive transfer type image forming device - Google Patents

Abstract

PURPOSE:To improve the ease of handling by fixing a stripping film before and behind press rollers and between a photosensitive member and transfer member in a manner as not to contact the press rollers and separating the photosensitive member and transfer member which are subjected to pressure development and are held in tight contact with each other by means of said stripping film. CONSTITUTION:The left end of the photosensitive member 1 and the transfer member 7 (members P) which are fed into a pressure developing device 11 with respect to the transfer direction 14 thereof is positioned to rest on the stripping film 10 on the side outer than the left end of the press rollers 15 and is fed in the transfer direction 14. The part at the left end which does not rest on the rollers 15 is not pressurized by the rollers 15 even after the passage therethrough and the members are held separated above and below the film 10 and are fed in this state in the direction 14. Since the width of the film 10 increases gradually toward the direction 14, the film 10 wedges increasingly between the members in a manner as to strip the members P to two sheets on progression of the transfer of the members P. The members P are entirely separated by a separating guide 13. The photosensitive member 1 is housed into a tray 16 and the transfer member 7 into a tray 17.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an image forming apparatus using light, and more specifically, to an image forming apparatus using light.
Control the transferability of the transfer material by exposing the photosensitive material
11L, relates to the structure of a mechanism for separating a photosensitive member and a transfer member that are in close contact with each other after pressure development in a photosensitive transfer type image forming apparatus that forms an image by transferring and developing the transfer material onto a transfer member using pressure development.

[Prior Art] In a conventional photosensitive transfer type image forming apparatus, a photosensitive member and a transfer member are output as a set of two sheets while being in close contact with each other after pressure development.

[Problems to be Solved by the Invention] However, in the above-mentioned conventional technology, the photosensitive member and transfer member that are in close contact with each other are manually separated each time an image is output, and the used photosensitive member that is no longer needed is discarded. This poses a problem in that it is inconvenient to handle.

The present invention is intended to solve these problems, and its purpose is to separate the photosensitive member and the transfer member,
It is an object of the present invention to provide a photosensitive transfer type image forming apparatus which allows used photosensitive members to be disposed of at once by storing them in separate locations, improves handling properties, and allows immediate output images.

[Means for Solving the Problems] The photosensitive transfer image forming apparatus of the present invention comprises a support, microcapsules coated on the support, and a photosensitive material and a transfer material encapsulated within the microcapsules. In a photosensitive transfer type image forming apparatus that transfers and develops a photosensitive member composed of a photosensitive member and a transfer member by overlapping the photosensitive member and a transfer member after exposure and pressurizing the transfer member, a pressure roller is provided between the photosensitive member and the transfer member. The method is characterized in that the photosensitive member and the transfer member, which have been pressure-developed and come into close contact with each other, are separated by an acrylic acid film that is fixed so as not to come into contact with the pressure roller before and after the transfer member.

[Example] FIG. 1 shows the basic configuration of a photosensitive transfer type image forming apparatus using the separation a side of the present invention. A photosensitive member 1 coated on a support with microcapsules encapsulating a photosensitive substance and a transferable substance is stored in a photosensitive member cassette 2, and a feed roller 3 and a conveyance roller 11 are connected to a conveyance drive system (not shown). The recording material is transported by the optical recording head 5, and is selectively exposed to light by the optical recording head 5, and a latent image is formed by controlling the transferability of the transfer material. Next, transfer member cassette 6
The transfer member 7 housed in the photosensitive member 1 is sent out by a feed roller 8 and a transport roller 9 connected to a transport drive system (not shown) at the timing when it overlaps the latent image formed on the photosensitive member 1, and is transferred to the transfer member 7, which is a side view of FIG. As shown in FIG. 2 and FIG. 3, which is a plan view, the two members overlap each other at the left end H in the conveying direction 14, sandwiching the acrylic acid film 10 shown by the line f'f in the figure, and are sent to the pressure developing device 11. entered.

The shoe film 10 is made of metal foil or a synthetic resin film with excellent abrasion resistance and a small coefficient of friction, and its shape is shown in FIG. The film is fixed to the guide 12 at the shaded area A in FIG. 4, and to the separation guide B at the B area, and has a shape in which the film width gradually increases in the transport direction 14 from the 0th part to the D part. , E section has a straight or curved external shape. Further, as shown in the MM cross section in FIG. 5, the right end portion F may be thinner and the left end portion F may be thicker so that the photosensitive member and the transfer member can be easily separated.

As shown in FIG.
It is located between the photosensitive part frame 1 and the transfer member 7 which are sandwiched between the pressure rollers 15 of 1, and is fixed so as to hold both ends thereof without sagging by the guide 12 and the separation guide 13 over the direction of the pressure developing device 11. ing. Furthermore, as shown in FIG. 3, the acrylic acid film 10 is
Section F is located on the outer side, and is arranged so as not to be pressed by the pressure roller 15, and section D is dimensioned so that the dimension G in FIG. 3 is positive.

In FIG. 3, the photosensitive member 1 is fed into the pressure developing device 11.
The left end H of the transfer member 7 (hereinafter abbreviated as member P) with respect to the transport direction 14 is positioned so as to overlap the F part of the succinic acid film 10 outside the left end r of the pressure roller 15. sent in the direction. Therefore, the part of this left end H that is not covered by the pressure roller 15 is the pressure roller 1
After passing through 5, the acrylic acid film 10 is not pressurized and is sent in the transport direction 14 in a state where it is divided into upper and lower parts of the acrylic acid film 10. Further, as the conveyance progresses, when the part of the member P that is pressed by the pressure roller 15 and in close contact reaches 0 part of the acrylic acid film 10, the width of the acrylic acid film 10 changes in the conveyance direction as described above. 14, the size of the member P
As the conveyance progresses, the E section of the acrylic acid film 10 becomes the member P.
The member P is completely separated by the separation guide 13, and each photosensitive member 1 is placed in the tray 16.
Then, the transfer member 7 is stored in the tray 17.

Moreover, by the method of feeding the left end H of the member P at position 1u as described above, even if the width of the member P is different, the separation can be performed reliably. In other words, for members P of various sizes,
Peeling is carried out without any problems.

FIG. 5 is a sectional view showing another embodiment of the acrylic acid film used in the present invention, in which the thickness increases in the direction of travel. Such a shape has the effect that peeling becomes easier.

Above, the photosensitive member 1 and the transfer member 7 are both of the cut sheet type, but due to changes in the conveyance system,
The present invention also applies to combinations of continuous roll type and cut sheet type, and both roll types! iI
Of course, the mechanism can be applied.

[Effects of the Invention] As described above, according to the present invention, a photosensitive member comprising a support, microcapsules coated on the support, a photosensitive material and a transfer material encapsulated in the microcapsules is provided. In a photosensitive transfer type image forming apparatus that transfers and develops onto a transfer member by overlapping the photosensitive member and the transfer member after exposure and applying pressure, the pressure is located between the member P and is applied across the front and rear of the pressure developing device. A mechanism that separates the photosensitive member and the transfer member that are in close contact with each other after pressure development using a non-removal film stretched on the outside of the pressure roller of the developing device allows the member P that is in close contact with each other to be removed after pressure development. By storing the photosensitive member and the transfer member in separate locations, the used blemish photosensitive member can be disposed of all at once, improving handling, and immediately outputting images. 14).

Further, by conveying the member P so that the left end thereof is covered with the release film, there is another effect that members P of various sizes can be reliably separated.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the basic configuration of a photosensitive transfer type image forming apparatus using the minute 1lltt mechanism of the present invention. FIG. 2 is a side view of FIG. 1. FIG. 3 is a plan view of FIG. 1. FIG. 4 is a diagram showing the shape of the release film used for the part A11aJ# of the present invention. FIG. 5 is a sectional view showing another embodiment of the release film. 1...Photosensitive member 4.9...Conveyance roller 5...Light t! ! : Writing head 6...Transfer member cassette 7...Transfer member 10...Full film 12...Guide 13...Separation guide 15...Pressure roller and above Applicant: Seiko Epson Corporation Ring: "Ichi no Ichi to 91), 2゜Figure 3 4th factor

Claims (1)

[Claims] After exposing a photosensitive member composed of a support, microcapsules coated on the support, and a photosensitive material and a transfer material encapsulated in the microcapsules, the photosensitive member and the transfer member are stacked and processed. In a photosensitive transfer type image forming apparatus that transfers and develops onto a transfer member by applying pressure, a release film is fixed between the photosensitive member and the transfer member so as not to contact the pressure roller across the front and back of the pressure roller. A photosensitive transfer type image forming apparatus characterized in that the photosensitive member and the transfer member that are in close contact with each other are separated.