JP2745543B2 - Image forming device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention forms a latent image by exposing a photosensitive pressure-sensitive sheet,
The present invention relates to an image forming apparatus in which a photosensitive pressure-sensitive sheet and an image forming sheet are superimposed and both are pressed to obtain a visible image on the peeled image forming sheet.

[Prior Art] Conventionally, as an image forming apparatus of this type, an original is irradiated with light, and reflected light or transmitted light is imaged on a photosensitive recording medium through an optical system such as a reflecting mirror, a filter, and a lens. There has been known one configured to form a latent image or a visible image on the photosensitive recording medium. In particular U.S. Pat.
In an apparatus using a photosensitive pressure-sensitive recording medium (composed of a photosensitive pressure-sensitive sheet and a developing paper) proposed in the specification of JP-A-9, a latent image is formed on a photosensitive pressure-sensitive sheet as a photosensitive recording medium by exposure. Then, a color-developed paper is overlaid on the surface on which the latent image is formed, and pressure is applied. By this pressure, a visible image was formed on the developed paper as an image forming sheet, and then the visible image was fixed by heating the developed paper. This pressure processing is generally called pressure development, and a pressure roller is used.
The heat treatment is generally called heat fixing, and a heat roller is used.

[Problems to be Solved by the Invention] However, when pressure development is performed in a state where the outside air is at a high temperature and a high humidity, the binder carried on the photosensitive pressure-sensitive sheet and the binder carried on the color developing paper are fused, The photosensitive pressure-sensitive sheet and the color developing paper are in an adhesive state. If the adhesive state is forcibly peeled off, the components carried on the photosensitive and pressure-sensitive sheet are peeled off from the sheet and adhere to the color-developed paper, and a good visual image (visible image) cannot be obtained.

[Object of the Invention] The present invention has been made to solve the above-mentioned problems, and an image forming method capable of forming a good visible image by preventing adhesion between a photosensitive pressure-sensitive sheet and an image forming sheet. It is intended to provide a device.

[Means for Solving the Problems] To achieve this object, an image forming apparatus according to the present invention comprises:
A latent image is formed by exposing the photosensitive pressure-sensitive sheet, and both are pressed while the photosensitive pressure-sensitive sheet and the image forming sheet are stacked,
An image forming apparatus that obtains a visible image on the peeled image forming sheet, a temperature detecting unit that detects a temperature in the apparatus,
A humidity detecting means for detecting the humidity in the apparatus and a control means for stopping the image forming operation when the detected temperature and humidity are out of the predetermined temperature / humidity range are provided.

[Operation] In the present invention having the above configuration, the temperature detecting unit detects the temperature in the image forming apparatus, and the humidity detecting unit detects the humidity in the image forming apparatus. The control means stops the image forming operation when the detected temperature and humidity are out of the predetermined temperature / humidity range.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. In the following examples, an embodiment in which a color-compatible photosensitive pressure-sensitive paper proposed in U.S. Pat.No. 4,399,209 is used as a photosensitive paper will be described, but in the case where another photosensitive paper is used. Although it is necessary to make some changes to the fixing system, the exposure system can be used as it is.

First, the configuration of the image recording apparatus will be described with reference to FIG. A light source 12 is arranged below the inside of the image recording apparatus 100, and a color correction filter 13 is arranged on the right side thereof. Further, a diffuse reflection plate 14 is disposed on the right side of the color correction filter 13, and a document table glass 15 is disposed above the diffuse reflection plate 14. A tray 6 is arranged above the platen glass 15, and the photosensitive pressure-sensitive paper roll cassette 1 is fixed on the tray 6.
A photosensitive pressure-sensitive paper 2 is accommodated in the right side of the photosensitive pressure-sensitive paper roll cassette 1. A spring 4 is disposed below the tray 6, and an exposure table 3 is drivably fixed to the tray 6 via the spring 4 below the spring 4. A pressure fixing roller 8 is disposed on the left side of the tray 6. A paper feed roller 11 and a color developing paper 10 are accommodated in the lower left part. A document protection sheet 16 is drivably stored between the exposure table 3 and the document table glass 15. A temperature / humidity sensor 20 is disposed below the photosensitive pressure-sensitive paper roll cassette 1 and near the paper passage of the photosensitive pressure-sensitive paper 2 as a temperature detecting means and a humidity detecting means. A heater 23 is disposed below the diffuse reflection plate 14, and a controller 22 is disposed below the heater 23.
The heater 23 is connected to the AC power supply 21 via the controller 22. FIG. 2 shows an operation panel of the image recording apparatus shown in FIG. 1, and a monitor LED 24 is connected to the controller 22.

Next, the operation of the image recording apparatus will be described. First, a document (not shown) is placed on the document protection sheet 16. Thereafter, the document protection sheet 16 is inserted into the image recording apparatus 100. Next, the exposure table 3 is brought into close contact with the photosensitive pressure-sensitive paper 2 and the document protection sheet 16 by the force of a lowering spring. Then, the light source 12 is turned on, only the light that has passed through the color correction filter 13 is irregularly reflected by the irregular reflection plate 14, and the original (not shown) fixed to the original protection sheet 16 is exposed to light. 2
A latent image is formed thereon. After the exposure, the exposure table driving device (not shown) is driven to raise the exposure table 3 to release the close contact between the photosensitive pressure-sensitive paper 2 and the document protection sheet 16. And
The developed paper 10 is taken out from the developed paper cassette 9, is superposed on the photosensitive pressure-sensitive paper 2, passes through the pressure fixing roller 8, and the latent image formed on the photosensitive pressure-sensitive paper 2 is transferred onto the developed paper 10. Thereafter, only the color-developed paper 10 is passed through the heat fixing roller 7 to improve the color development and output an image.

Next, the present invention will be described in detail with reference to FIG. If the temperature and humidity inside the device detected by the temperature / humidity sensor 20 attached inside the image recording device are within the operation guarantee range or within the range as compared with a preset parameter, the controller 22 will be described. Monitor LED24
Lights up. However, if it is out of the range, the monitor LED 24 is blinked and the heater 23 is operated.
At this time, the apparatus does not perform a recording operation. However, when the temperature and humidity inside the image recording apparatus again fall within the operable range, the controller 22 turns on the monitor LED 24 and returns to the normal operation.

The present invention is not limited to the embodiments described in detail above, and various changes can be made without departing from the gist of the present invention.

[Effects of the Invention] As is clear from the above description, the present invention provides a temperature detecting means for detecting the temperature in the apparatus, a humidity detecting means for detecting the humidity in the apparatus, and the detected temperature and humidity. Is provided with control means for stopping the image forming operation when the temperature is out of the predetermined temperature / humidity range, so that adhesion between the photosensitive pressure-sensitive sheet and the image forming sheet is prevented. In addition, there is an extremely excellent effect that a good visible image can be formed because the adhesive state is not forcibly peeled off, which is conventionally caused.

[Brief description of the drawings]

FIGS. 1 and 2 show an embodiment embodying the present invention. FIG. 1 is a schematic sectional view showing the entire configuration of the embodiment, and FIG. 2 is an operation of the apparatus of the embodiment. FIG. 3 is a block diagram of a control unit for controlling the operation of the control unit. 2 ... sensitive pressure sensitive paper, 10 ... developed paper, 20 ... sensor, 24
... LED, 22 ... Controller (control means).

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Naoyuki Hatta 9-35, Horita-dori, Mizuho-ku, Nagoya-shi, Aichi Prefecture Inside Brother Industries, Ltd. Address: Brother Industries, Ltd. (72) Koji Kobayakawa, Inventor 9-35, Hotita-dori, Mizuho-ku, Nagoya, Aichi Pref. Address Brother Industries, Ltd. (72) Inventor Yuji Asano 9-35, Hotita-dori, Mizuho-ku, Nagoya, Aichi Pref. Address Brother Industries, Ltd. (72) Inventor Akira Sato 9-35, Horitadori, Mizuho-ku, Nagoya-shiー Industry Co., Ltd. (72) Inventor Yumio Matsumoto 9-35, Horita-dori, Mizuho-ku, Nagoya-shi, Aichi Prefecture Inside Brother Industries Co., Ltd. No. 35 Brother Industries, Ltd. (72) Inventor Toshitoshi Akao 9-chome, Horita-dori, Mizuho-ku, Nagoya-shi, Aichi Prefecture 35-72 Inside Brother Industries, Ltd. No. 35 Brother Industries, Ltd. (72) Atsushi Sakai 9-chome, Horita-dori, Mizuho-ku, Nagoya, Aichi Prefecture 35 No. 35 Kazukatsu Makino, Inventor 9, Kazuki Makino 9, Mizuho-ku, Aichi Prefecture No. 35, Brother Industries, Ltd. (72) Inventor Toshio Sakai 9-35, Brother Industries, Ltd. Hotta-dori, Mizuho-ku, Nagoya, Aichi Prefecture 35th place Inside Brother Industries, Ltd. (72) Inventor Ito Yosuke 9-35, Horita-dori, Mizuho-ku, Nagoya-shi, Aichi Pref. Inspector, Brother Industries, Ltd. Toshihiko Fujita (56) References JP-A-56-69653 (JP, A) JP-A-1-123234 (JP, A JP-A-62-96972 (JP, A) JP-A-1-315740 (JP, A) JP-A-60-169643 (JP, U)

Claims (1)

(57) [Claims] A latent image is formed by exposing a photosensitive pressure-sensitive sheet;
An image forming apparatus that presses a photosensitive pressure-sensitive sheet and an image forming sheet in an overlapping state to obtain a visible image on the peeled image forming sheet, and a temperature detecting unit that detects a temperature in the apparatus, An image forming apparatus, comprising: humidity detecting means for detecting humidity in the apparatus; and control means for stopping an image forming operation when the detected temperature and humidity are outside a predetermined temperature and humidity range.