JPH0355953Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is used in a copying machine that waits and superimposes original paper onto photosensitive paper that is manually fed and then conveys it to the printing section without installing an automatic paper feeder for photosensitive paper. This invention relates to an original paper photosensitive paper standby polymerization device.

(Prior art) Generally, in a copying machine, automatic exposure printing control controls the amount of light at the printing section or the conveyance speed to the printing section, etc., to perform appropriate printing according to the light transmittance of the original paper inserted first. Equipped with equipment. On this occasion,
A method is already known in which the photosensitive paper is brought into close contact with the original paper in a timely manner using an automatic paper feeder comprising a photosensitive paper transport mechanism and a photosensitive transport path, which are provided separately from the original paper transport mechanism.

(Problem to be solved by the invention) However, such a method has a complicated structure and is expensive. Alternatively, without installing an automatic photosensitive paper feeder, first insert only the original paper by hand, measure the light transmittance of the original paper, then overlap the original paper and photosensitive paper again and insert it into the copying machine. Although the method described above has a simple structure, it generally requires a lot of effort and has problems such as a large amount of wasted time.

In view of the above-mentioned points, the present invention effectively solves the problems of the prior art, and the original paper is inserted separately from the photosensitive paper inserted when the light transmittance of the original paper is detected and measured and exposed and printed. It is an object of the present invention to provide an original photosensitive paper standby polymerization device for a copying machine, which has a simplified structure for polymerizing and adhering the original paper and photosensitive paper, reduces wasted time, and is easy to handle.

(Means for Solving the Problem) According to the present invention, this purpose is to provide a copying machine that manually inserts photosensitive paper when detecting and measuring the light transmittance of the original paper and performing automatic exposure adjustment in the printing section. a copying machine insertion slot provided so that both the original paper and the photosensitive paper can be inserted; and the copying machine inserting slot provided close to the copying machine insertion slot and inserting the original paper into the original paper insertion side or the copying machine insertion slot. An insertion slot guide that rotates freely to distribute photosensitive paper to the photosensitive paper insertion side, an original paper detection sensor that detects the original paper inserted through this insertion guide, and an original paper inserted through the photosensitive paper insertion side of the insertion slot guide. A photosensitive paper detection sensor detects that the original paper inserted into the photosensitive paper through the original paper insertion side is superposed, and the original paper detection sensor or the photosensitive paper detection sensor provided in the insertion slot guide an insertion slot guide actuating mechanism that allows the insertion slot guide to freely rotate to the original paper insertion side or the photosensitive paper insertion side; and a standby roller that is provided at the entrance of the printing section and stops conveyance of the original paper and photosensitive paper and waits. and a standby roller operating mechanism that is provided on the standby roller and rotates the standby roller by the original paper detection sensor and the photosensitive paper detection sensor to send the superposed original paper and photosensitive paper to the printing section. This is a standby polymerization device for original paper and photosensitive paper in a copying machine.

(Example) Next, an example of the present invention will be described in detail based on the drawings.

FIG. 1 shows a schematic diagram of an embodiment of the present invention. In the figure, the copying machine 1 includes a table 2, a copying machine insertion slot 21, an insertion slot guide 3, an original paper light transmittance detection unit 4, original paper feeding rollers 5, 6, original paper conveyance guides 7, 8, and original paper insertion detection. sensor 9, standby roller 10, standby driven roller 11, conveyor belt 12,
printing section 13, photosensitive paper conveyance guides 14, 15, photosensitive paper conveyance roller 16, photosensitive paper conveyance driven roller 17,
It is composed of photosensitive paper feed rollers 18, 19, a photosensitive paper insertion detection sensor 20, and the like.

The table 2 is a guide plate that can guide and insert both original paper and photosensitive paper into the insertion slot 21 of the copying machine 1. The insertion port guide 3 is provided adjacent to the insertion port 21 so as to be rotatable about the rotation shaft 22, and is made of a hard organic synthetic material such as Teflon having a lubricating surface. The insertion slot guide 3 distributes the original paper and the photosensitive paper to the original paper transport side and the photosensitive paper transport side using a rotating shaft 22.

Further, the photosensitive paper conveyance driven roller 17 is rotatably supported by the insertion slot guide 3, and is driven to rotate when it comes into contact with the photosensitive paper conveyance roller 16 along with the rotation of the insertion slot guide 3.

The original paper light transmittance detection unit 4 is provided on the original paper conveying side of the insertion slot guide 3, and includes a light source 23 and an original paper light transmittance detection sensor, for example, a photo sensor 24, and detects the light transmittance of the original paper passing through it. This is provided to adjust the light intensity of the exposure lamp 26 of the printing section 13, the conveyance speed of the conveyor belt 12, etc.

Detection sensor 9 and photosensitive paper insertion detection sensor 20
is, for example, a photo sensor or a microswitch.

The standby roller 10 rotates or stops as appropriate as the original paper and photosensitive paper advance. The standby driven roller 11 contacts the standby roller 10 and rotates and stops as the standby roller 10 rotates and stops.

The printing section 13 consists of a printing drum 2 and an exposure lamp 26. The printing drum 25 is rotated by the drive of the conveyor belt 12, and the original drawing paper and photosensitive paper which are superimposed in close contact with each other are conveyed and printed.

In addition, the original paper photosensitive paper standby polymerization device of the present invention is
An original drawing paper insertion detection circuit 40 and an original drawing paper insertion detection timing circuit 4 connected to the original drawing paper insertion detection sensor 9
1. Insertion port guide solenoid operation circuit 42, insertion port guide operation solenoid 33 (FIG. 2), photosensitive paper insertion detection circuit 43 connected to photosensitive paper insertion detection sensor 20, photosensitive paper insertion detection timing circuit 44,
It consists of a standby solenoid operating circuit 45 and a standby solenoid 29 (FIG. 2).

The original paper insertion detection circuit 40 transmits an original paper insertion detection signal to the original paper insertion detection timing circuit 41. The insertion port guide solenoid operation circuit 42 includes the insertion port guide operation solenoid 3, which will be described later in FIG.
3 is turned on and off, the rotating shaft 22 of the insertion slot guide 3 is rotated, and the insertion slot guide 3 is rotated toward the original paper side or the photosensitive paper side.

Note that the photosensitive paper insertion detection circuit 43 transmits a photosensitive paper insertion detection signal to the photosensitive paper insertion detection timing circuit 44 . Photosensitive paper insertion detection timing circuit 44
gives a predetermined timing to the photosensitive paper insertion detection signal and transmits it to the insertion port guide solenoid operating circuit 42 and the standby solenoid operating circuit 45.

Furthermore, the standby solenoid operating circuit 45
A standby solenoid 29, which will be described later in the figure, is turned on and off to cause the standby roller 10 to start or stop rotating.

Next, FIG. 2 shows a perspective view of the main part of FIG. 1.
In the figure, a standby roller actuation mechanism 27 is provided at the shaft end of the standby roller 10, and an insertion port guide actuation mechanism 28 is provided at one end of the rotating shaft 22 of the insertion port guide 3. The standby roller operating mechanism 27 includes a standby solenoid 29, a latch stopper 30, a latch wheel 31, and a return spring 32.
Consisting of

The insertion port guide operation mechanism 28 also includes an insertion port guide operation solenoid 33 and a solenoid lever 34.
and a return spring 35. The sprocket 36 receives rotational power from a drive section (not shown) of the copying machine 1 and rotates the standby roller 10 via a spring clutch (not shown) housed in the ratchet wheel 31. A sprocket 37 is provided on the standby roller 10 and rotates the photosensitive paper feed roller 18 via a chain 38 and a sprocket 39.

The operation of this embodiment will be explained using the above-described configuration. After confirming that the insertion slot guide 3 is on the photosensitive paper insertion side (FIG. 3) in a steady state, the photosensitive paper A is inserted. Photosensitive paper A is attached to photosensitive paper conveyance guide 1.
4 and the insertion slot guide 3, and the photosensitive paper conveying roller 16 and the photosensitive paper conveying driven roller 17
The photosensitive paper A is further conveyed by the photosensitive paper feed rollers 18 and 19, and the insertion of the photosensitive paper A is detected by the photosensitive paper insertion detection sensor 20 and the photosensitive paper insertion detection circuit 43.

The photosensitive paper insertion detection timing circuit 44 determines the timing until the leading edge of the photosensitive paper A reaches the contact portion of the standby roller 10 and the standby driven roller 11, and sends an operation signal to the standby solenoid operation circuit 45 to activate the standby solenoid 29. Turn on. When turned on, the ratchet stopper 30 operates and locks the ratchet wheel 31.

The standby roller 10 is rotated by the rotational power of a drive section (not shown) of the copying machine 1 through a sprocket 36. However, since the ratchet wheel 31 is locked, the spring clutch (not shown) installed inside the ratchet wheel 31 cuts off the transmission of the rotational power of the sprocket 36, and the standby roller 10 and the standby driven roller 11 prevent rotation.

Furthermore, since rotational power is transmitted to the photosensitive paper feed roller 18 from the standby roller 10 via the sprocket 37, chain 38, and sprocket 39, the rotation of the photosensitive paper feed roller 18 is stopped when the standby roller 10 is stopped. Therefore, the photosensitive paper feed roller 19 is stopped following the photosensitive paper feed roller 18, and the photosensitive paper A is placed in a standby state.

The operation signal from the photosensitive paper insertion detection timing circuit 44 is simultaneously transmitted to the insertion port guide solenoid operation circuit 42 to turn on the insertion port guide operation solenoid 33. When the insertion port guide operation solenoid 33 is turned on, the solenoid lever 34
The insertion port guide 3 is rotated toward the original paper insertion side via the rotation shaft 22, and is in the state shown in FIG. 4.

Until this state is reached or even if this state is reached, there is a sufficient gap between the insertion slot guide 3 and the table 2 or between the insertion slot guide 3 and the photosensitive paper transport guide 14 to allow the photosensitive paper A to pass through. It is provided.

At this time, the photosensitive paper conveyance driven roller 17 separates from the photosensitive paper conveyance roller 16 and the photosensitive paper conveyance roller 16
There is no photosensitive paper conveyance force, and the photosensitive paper A is stopped between the insertion slot guide 3 and the photosensitive paper conveyance guide 14.

Next, after confirming the standby state of the photosensitive paper, when the original paper B is inserted as shown in FIG. The light transmittance of paper B is detected and measured, and the paper B is conveyed by original paper feeding rollers 5 and 6, and the original paper is guided by guides 7 and 8.

The insertion progress of the original paper B is detected and measured by the original paper insertion detection sensor 9 and the original paper insertion detection circuit 40 and is transmitted to the original paper insertion detection timing circuit 41 .

The original paper insertion detection timing circuit 41 is configured such that the leading edge of the original paper B is connected to the standby roller 10 and the standby driven roller 1.
When the timing reaches the contact point between the standby roller 10 and the standby driven roller 11, a signal is sent to the insertion slot guide solenoid operation circuit 42 and the standby solenoid operation circuit 45, and the insertion slot guide Turn off operating solenoid 33 and standby solenoid 29.

By turning off, the return spring 32 pulls back the latch stopper 30 and causes the standby roller 1 to move back.
0, the standby driven roller 11 and the photosensitive paper feed rollers 18 and 19 are rotated again. This rotation causes
The photosensitive paper A and the original paper B are polymerized and conveyed to a printing section 13 via a conveyor belt 12.

Further, the return spring 35 pulls back the solenoid lever 34 to return the insertion port guide 3 to the steady state on the photosensitive paper insertion side shown in FIG. The photosensitive paper A is conveyed.

In addition, as mentioned above, the photosensitive paper conveyance driven roller 17
is provided in the insertion port guide 3, and when the insertion port guide 3 rotates toward the photosensitive paper insertion side, it separates from the photosensitive paper transport roller 16 and stops transporting the photosensitive paper A.

However, the photosensitive paper conveying roller 16 and the photosensitive paper conveying driven roller 17 represent one embodiment of the present invention, and are not limited thereto. That is, the photosensitive paper conveyance driven roller 17 is not provided on the insertion guide 3 and is always kept in contact with the photosensitive paper conveyance roller 16.

Further, the photosensitive paper conveyance roller 16 rotates and conveys the photosensitive paper when the insertion slot guide 3 is rotated toward the photosensitive paper insertion side, and when the insertion slot guide 3 is rotated toward the original paper insertion side. Alternatively, the rotation may be stopped and the photosensitive paper A is placed on standby, and the photosensitive paper conveyance driven roller 17 may always follow this photosensitive paper conveyance roller 16.

(Effects of the invention) As explained above, the present invention eliminates the need for an automatic photosensitive paper feeder when detecting and measuring the light transmittance of the original paper and automatically adjusting the exposure. It has a copying machine insertion slot that allows insertion of either paper, and an insertion slot guide that rotates to freely distribute the paper to the original paper insertion side or the photosensitive paper insertion side,
An insertion port operating mechanism is provided to operate the insertion port guide,
A standby roller is provided at the entrance of the printing section, and a standby roller operating mechanism is provided that allows the original paper and photosensitive paper to overlap each other at the standby roller, then rotates the standby roller and transports the paper to the printing section. The copying machine has a single insertion slot so that photosensitive paper can be manually inserted without being equipped with an automatic photosensitive paper feeding device consisting of a mechanism and a photosensitive paper transport path, simplifying the configuration and making handling and operation easy. It has the following effects.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram of an embodiment of the present invention;
The drawings are a perspective view of the main part of FIG. 1, FIG. 3 is a diagram showing how the insertion slot guide is rotated toward the photosensitive paper, and FIG. 4 is a diagram showing how the insertion slot guide is rotated toward the original paper. 1... Copying machine, 3... Insertion slot guide, 4... Original paper light transmittance detection sensor, 9... Original paper insertion detection sensor, 10... Standby roller, 11... Standby driven roller, 16... Photosensitive Paper conveyance roller, 18, 19
...Photosensitive paper feed roller, 20...Photosensitive paper insertion detection sensor, 27...Waiting roller operating mechanism, 28...
Insertion port guide operating mechanism, 29...standby solenoid, 33...insertion port guide operation solenoid.

Claims (1)

[Scope of utility model registration request] A copying machine 1 in which photosensitive paper is manually inserted when detecting and measuring the light transmittance of the original paper and performing automatic exposure adjustment in the printing section 13, and the copying machine 1 is provided so that both the original paper and the photosensitive paper can be inserted. a copying machine insertion slot 21, and an insertion slot guide that is provided close to the copying machine insertion slot and rotates to freely distribute the inserted original paper to the original paper insertion side or the photosensitive paper to the photosensitive paper insertion side. 3, an original paper detection sensor 9 that detects the original paper inserted through the insertion guide, and an original paper detection sensor 9 that detects the original paper inserted through the photosensitive paper insertion side of the insertion slot guide; A photosensitive paper detection sensor 20 detects that the original paper has been superposed, and the original paper detection sensor or photosensitive paper detection sensor provided in the insertion slot guide moves the insertion slot guide to the original paper insertion side or the photosensitive paper insertion side. Insertion port guide operating mechanism 28 that can be rotated freely
a standby roller 10 provided at the entrance of the printing section to stop conveyance of the original paper and the photosensitive paper and wait therefor; and a standby roller 10 provided at the standby roller to rotate the original paper and the photosensitive paper by the original paper detection sensor and the photosensitive paper detection sensor. a standby roller operating mechanism 2 for feeding the polymerized original paper and photosensitive paper to the printing section;
7. An original paper photosensitive paper standby polymerization device in a copying machine, comprising: