JPS62108236A - Copying device - Google Patents

Abstract

PURPOSE:To thoroughly protect a photosensitive material during conveyance and to obtain a copied image having good quality by providing a conveyance system for the photosensitive material in a dark box insulated from an optical system which is opened only in the exposing stage and providing thorough light shieldability between the photosensitive material supply port of said conveyance system and the insertion part of a cartridge mounting part. CONSTITUTION:The original information on original platen glass 2 of a copying device body 1 is obtd. by the optical system 5. The conveyance system 35 for the photosensitive material 6 is provided in the upper and lower dark boxes 37 and 39 optically insulated by the shutter 8 which can be opened only in the exposing stage. The supply port 21 of the cartridge 18 to supply the photosensitive material 6 is projected like a lip into such conveyance system 35. The supply port 21 is then coupled with the dark box 39 through the insertion port 23 of the cartridge mounting part 19. The space between the insertion port 23 provided to the mounting part 19 and the supply port 21 of the cartridge 18 is shielded by a light shielding member 24 stuck to the periphery of the port 23 and a light shielding member 25 of the port 21, by which the photosensitive material 6 under the conveyance is thoroughly shielded of light.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a copying apparatus capable of making full-color copies.

[Background of the invention]

Generally, a copying machine uses an optical system to expose document information from a document placed on a document table glass onto a photoreceptor drum on which a charge has been placed in advance to create a latent image.

After developing this into a toner image, it is transferred to recording paper fed at a timing from the paper feeding section, and ptj! The paper is configured to be fixed by applying pressure and ejecting the paper. Therefore, if the original information obtained by this optical system is directly exposed to the photosensitive surface of the photosensitive material instead of the photosensitive drum, and the photosensitive material is processed by passing it through a processing liquid tank according to the development process, a full-color copy can be obtained. It is theoretically possible to do so.

However, unlike a photoreceptor drum, photosensitive materials can fog even if a small amount of external light enters, so an optical system that obtains document information from the document on an open document platen glass and a transportation system for the photosensitive material are required. It has not been possible to obtain a copying device that is compactly incorporated into the same housing and is capable of full-color copying.

Therefore, the inventor of the present invention installed an optical system that obtains document information from a document on a document table glass into an optically insulated dark box through a shutter that can be opened only during exposure. We succeeded in installing a transport system for transporting the photosensitive material to a copying machine that enabled full-color copying, but in order to complete this, we needed to improve the light-shielding properties of the cartridge itself that stored the photosensitive material. It has been found that it is necessary to ensure sufficient light-shielding properties at the part where the cartridge is connected to the transport system.

[Purpose of the invention]

In view of the above-mentioned points, the present invention provides complete light-shielding properties at a portion where a cartridge storing a photosensitive material in a completely light-shielded state is connected to a transport system in a dark box.

The object of the present invention is to provide a copying apparatus that can reliably feed paper.

[Structure of the invention]

In order to achieve the above object, the present invention provides a general feeding system for photosensitive material in a dark box optically insulated via a shutter that can be opened only during exposure to an optical system that obtains document information from a document on a document table glass. The supply port of the cartridge for supplying photosensitive material to the transport system is provided in a protruding lip shape, and the supply port can be connected to the transport system by inserting it into the dark box through an insertion port provided in the cartridge mounting part. It is composed of

〔Example〕

Next, the present invention will be described based on embodiments shown in the accompanying drawings.

In the figure, 1 is the main body of the copying machine, 2 is the document table glass, and 3
0 is a light-shielding box that surrounds the space below the document platen glass 2.
g Inside the optical box 3, there is an optical system 5 consisting of a light source 5a for obtaining document information from a document 4 placed on a document table glass 2, a plurality of mirrors 5b, and a lens 5c, and a drive system (not shown) for driving these. ). Note that the optical system is driven using a conventionally known mechanism, and is also equipped with a variable magnification device. Further, a light shielding plate 3a is provided between the document table glass 2 and the lens 50 at a position that does not interfere with the movement of the light source 5a.
A light shielding plate 3b is also provided below the optical path passing through the lens 5C so as not to obstruct the movement of the lens 5C.

Reference numeral 7 denotes an exposure window for exposing the photosensitive material 6 to the document information obtained by the optical system 5. The exposure window 7 is provided on one side wall of the light-shielding box 3, and has a shutter on its inner surface that can be opened only during exposure. 8. An optical path frame 9 is provided on the outer surface side. As shown in the second figure, the shutter 8 is inserted into the gap between the side wall provided with the exposure window 7 and the facing plate 10 so as to be movable vertically and horizontally, and is inserted at two positions on the left and right sides of the facing plate 10 (only one position is shown in the drawing). The lever 12 is pivotally mounted on the upper end of a lever 12 which can swing around a pin 1) which is implanted in the holder 1). The lower end of the lever 12 is pivotally connected to a shirt l-15 connected to the plunger 14 of the solenoid 13, and can be raised and lowered around the pin 1) by moving the shirt 1-15 in the axial direction. . 16 is a notch provided in the facing plate 10 to ensure an area for raising and lowering the lever 12, and 17 is a solenoid 13.
This is a spring member that pulls the shaft 15 in one direction when the power is not energized. That is, normally the shutter 8 is pulled rightward in the figure by the action of the spring member 17, and the exposure window 7 is closed via the lever 12, but when the solenoid 13 is energized and the plunger 14 is pulled, The shaft 15 moves to the left against the spring member 17, and the lever 12 rotates in the direction of the arrow to open the exposure window 7. The energization of the solenoid 13 is performed in accordance with the timing of conveyance of the photosensitive material by the optical system 5 and the conveyance system 35, which will be described later.

A cartridge 18 stores the photosensitive material 6 wound into a roll, and the cartridge 18 is installed in a mounting portion 19 of the main body l of the copying apparatus. As shown in the third figure, the front and upper surfaces of the cartridge 18 can be expanded around the hinge shaft 1B' so that the cartridge 18 can be loaded with a package 20 in which the roll-shaped photosensitive material 6 is rotatably packaged.

The package 20 is formed of a paper box or the like that can provide light-shielding performance for refilling the photosensitive material 6, and.

The light-shielding properties of the outlet 20' are also taken into consideration.

Reference numeral 21 denotes a supply port for the photosensitive material 6 provided at the lower end of the front surface of the cartridge 18. The supply port 21 extends in a lip shape, and when mounted in the mounting section 19 as shown in the fourth figure, the supply port 21 is inserted into the back wall 19 of the cartridge 18. It can be inserted into the main body dark box through an insertion opening 23 provided at '. Around this insertion opening 23, there is a fifth
As shown in the figure, a light shielding member 24 made of maltblen is attached. Further, similar light shielding members 25 are provided on both sides of the supply port 21 of the cartridge 18 so as not to block the passage of the photosensitive material 6. Reference numeral 26 denotes a plurality of through holes provided so as to pass through the upper and lower surfaces of the supply port 21, and the through holes 26
connect the supply port 21 of the cartridge 1B to the mounting part 1 as described above.
When inserted through the insertion opening 23 of No. 9, the same number of delivery rollers 27 and 27' installed in the dark box of the main body can be fitted from above and below. 28 is the supply port 21
This is a detection window of a detector 29 that detects the presence of the photosensitive material 6 provided in the photosensitive material 6. Reference numeral 30 denotes guide plates for mounting the cartridge 18 in the mounting portion I9, which are provided on both sides thereof. This guide plate 30 is provided with a hook-shaped ll31 on its front edge, into which a pin 33 of a locking mechanism 32 shown in FIG. 6 provided on the side wall of the mounting portion 19 can be inserted to lock the mounted state. This opening/tuck mechanism 32 can be released by rotating a handle 34 provided at the lower part of the mounting portion 19 as shown by the two-dot chain line. 22 is Kartli 7
This is a detector that detects whether the jacket 18 is attached.

Reference numeral 35 designates a conveyance system for the photosensitive material 6 fed out from the cartridge 18 mounted on the mounting section 19 by the feeding rollers 27 and 27'. The transport system 35 includes a cartridge 18
After conveying the photosensitive material 6, which has been fed out and cut to a desired size by the force/tutter 36, to a drum-shaped temporary storage chamber 38 installed in the upper dark box 37, it is placed in the light-shielding box 3 in which the optical system 5 is installed. Optical path frame 9 extending from exposure window 7 provided on the side wall
In order to expose the document information, the front surface of the document is passed through and hangs down into the lower dark box 39, and the switch is switched back and guided into the temporary storage chamber 38 again. Development processing system 4 by switching 40
1 can be transported. That is, as shown in FIG. 7, the photosensitive material cut by the cuffer 36 is
8, (1) transport from the mantissa storage chamber 38 to the lower dark box while being exposed, (2) return from the lower dark box to the temporary storage chamber, and (2) transport from the temporary storage chamber to the developing processing system 41. This is so that the conveying speeds of ■, ■, and ■, the conveying speed of ■, and the conveying speed of ■ can be made different. Note that in this figure, S is a sensor that detects the photosensitive material within the transport system.

The development processing system 41 includes processing liquid tanks 42 to 4 necessary for development, fixing, and stabilization arranged according to the development process.
6, through which the exposed photosensitive material 6 as described above can be sequentially passed. The photosensitive material 6 that has passed through the development processing system 41 is dried by air blowing from above and below by fans 48 and 49 installed in a drying chamber 47 provided on the downstream side of the photosensitive material 6.
The paper is now ejected to A. 50 is a replenisher tank that is injected into the processing liquid tank.

It also serves as a storage tank for overflow liquid.

〔Effect of the invention〕

As described above, the present invention includes a photosensitive material transport system in a dark box that is optically insulated via a shutter that can be opened only during exposure to an optical system that obtains document information from a document on a document table glass. A cartridge for supplying photosensitive material to the system has a lip-shaped supply port that protrudes, and the supply port can be inserted into the dark box through an insertion port provided in the cartridge mounting section and connected to the transport system. Because the cartridge has a lip-shaped supply port that serves as a guide, it is easy to install the cartridge in the mounting section.After installation, the inside of the dark box is connected to the transport system, and the cartridge's own light-shielding properties make it easy to install the cartridge. This provides various excellent effects such as sufficient light shielding at the portion connected to the transport system.

[Brief explanation of drawings]

The figures show an embodiment of the invention, in which Fig. 1 is a sectional view of the entire apparatus, Fig. 2 is a perspective view showing an exposure window and its shutter,
Figure 3 is a partially cutaway perspective view of the cartridge, Figure 4 is a sectional view showing the cartridge in its installed state, Figure 5 is a sectional view showing the cartridge before (after) installation, and Figure 6 is the locking mechanism of the cartridge. and Figures showing the release mechanism, Figures 7■~■
is an explanatory diagram of a conveyance system. 1--Copying device body 2--Original table glass 3-
Light-shielding box 5-Optical system 6-Photosensitive material 7-Exposure window 8-Shutter 18-Cartridge 19-
・Attachment part 20-package body 21-・supply port
23-insertion port 24.25-light shielding member 35
・-Transport system 36-Cutter 37-・Upper dark box 38-Temporary storage room 39-Lower dark box 41-Development processing system Patent Applicant: Konishiroku Photo Industry Co., Ltd. III
Figure 5 Figure 751 ■ ■ ■

Claims (3)

[Claims] (1) A photosensitive material transport system is provided in a dark box that is optically insulated via a shutter that can be opened only during exposure to an optical system that obtains document information from the original on the document platen glass. A copying apparatus characterized in that the supply port of a cartridge for supplying a cartridge is provided in a lip shape and is configured to be inserted into a dark box through an insertion port provided in a cartridge mounting portion and connected to a conveyance system. . (2) The copying apparatus according to claim 1, wherein light is shielded between the insertion port provided in the cartridge mounting portion and the cartridge supply port by a light shielding member attached around the insertion port. (3) The copying apparatus according to claim 1 or 2, wherein both sides of the supply port of the cartridge are shielded from light by light shielding members.