JPS60202452A - Copying device - Google Patents

Abstract

PURPOSE:To enable both side copying or synthetic copying or the like by enabling a single case to execute single copying, and combining this case with another case provided with a device actuated with each instruction in the inside. CONSTITUTION:The first case 1 is placed on the second case 21, and a double copying mode switch is turned on to turn a changeover guide 24 to the first position shown with a full line. A paper (A) singly copied in the case 1 is ejected with ejecting rollers 14, guided with a stocking member 27, and when a prescribed quantity of papers is stocked, the member 24 is turned to the second position shwon with a broken line. A pressing plate 29 is turned to a position shown with a broken line, and the paper (A) is carried with conveying rollers 28, feed rollers 33, 34, and again fed to a transfer section 6. An image formed on a photosensitive drum 3 is copied on the reverse side of the paper (A) to complete double copying, and since the member 24 has been turned to the position of the broken line, and ejecting rollers 23 are driven with an instruction signal, the paper (A) is ejected to an ejected paper tray 50.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention includes an image forming device that copies an image onto a sheet of paper within a case, an image forming command signal that operates the image forming device, and a switching command signal that operates members outside the case. This case is equipped with a control device that outputs a transport command signal, and is capable of single-sided copying by itself. The present invention relates to a copying apparatus which is capable of performing double-sided copying, composite copying, etc. by combining with another case equipped with a conveying device operated by the present invention.

BACKGROUND OF THE INVENTION In general, a copying machine having a double-sided copying function also has a composite copying function, and each device for performing each function is housed in a single case.

For this reason, even if a user only needs a double-sided copying function, he or she has to purchase a device that performs composite copying as well, which is extremely wasteful.

Furthermore, single-sided copying machines that copy only one side of a sheet of paper do not have a structure that allows them to have a double-sided copying function by simple modification. Therefore, after purchasing the copying machine,
If a double-sided copying function becomes necessary due to changing needs, a new copying device with a double-sided copying function must be purchased, which has the disadvantage of not being able to respond to changing user needs. .

Purpose This invention provides an image forming device within a case, and a control device that outputs an image forming command signal for operating the image forming device, a switching command signal for operating members outside the case, and a transport command signal, etc. This case alone can perform one-sided copying, and by combining this case with another case internally equipped with a device operated by each of the command signals, double-sided copying or composite copying can be performed. It is an object of the present invention to provide a copying apparatus that eliminates the above-mentioned drawbacks.

composition Embodiments of the present invention will be described below based on the drawings.

In FIGS. 1 and 2, 1 is a first case provided with a convex portion 1a on the upper left side, and an electrostatic latent image of a document (not shown) placed on a contact gas 2 is placed inside this case 1. A photoreceptor drum 3 is provided. 4 is a developing device that visualizes the electrostatic latent image; 5 is a transfer charger that transfers the visualized image onto the paper when the paper passes through the transfer section 6; and 7 is a developing device that makes the electrostatic latent image visible. 1 a paper feed roller 11 that feeds the paper A of sumo wrestlers 8 set on the right side of the case 1 to the transfer unit 6 via the separation roller 9 and the registration roller 10;
is a guide plate. 12 is a conveyor belt that conveys the paper that has passed through the transfer section 6; 13 is a fixing roller 2 that fixes the image transferred to the paper; and 14 is a first paper discharge roller. Reference numeral 15 denotes a first introduction port 17 for introducing paper, which is provided at the bottom 16 between the registration roller 10 and the paper feed row'') 7.
is a guide member that guides the introduced paper to the registration row 21O.

Reference numeral 21 denotes a second case on which the first case l is removably placed, and in the figure, a portion surrounded by the lower surface of the convex portion 1a of the first case 1 and the left side surface of the first case l below this lower surface. A protrusion 21m that protrudes upward and engages with is provided, and a protrusion 21b that protrudes leftward from the position where the protrusion 21& is provided. A second paper ejection roller 23 for ejecting the paper to the outside is provided in the protruding portion 21a, and the first paper ejection roller 14
There is a first position (solid line in FIG. 1, dashed line in FIG. 2) where paper is introduced, and a second position (dashed line in FIG. 1) where paper is guided to the second paper ejection roller 23. , the solid line position in Fig. 2).
A switching guide member 24 is provided.

Reference numeral 25 is a second introduction port provided on the top plate 26 of the protruding portion 21b, through which paper is introduced. Reference numeral 27 denotes a stock member installed in the protrusion 2ib, which is installed at an angle so that the left side is located upward and the right side is located downward, as shown in Fig. 1.2. The paper introduced by the guide member 24 is stocked with its surface facing upward, and the paper introduced through the second introduction port 25 is stocked with its surface facing downward. Therefore, when performing double-sided copying, the paper is introduced through the first switching guide member 24, and when performing composite copying, the paper is introduced from the second introduction port 25. Reference numeral 28 denotes a conveyance roller that conveys the paper stocked in the stock member 27. When the pressure plate 29 is switched to the position shown by the broken line, the end of the paper comes into pressure contact with the conveyance roller 28, and the paper is conveyed.

30 is a stopper that stops the paper sliding down from the stock member 27; 31, 32 is a guide member; 33 is a feed roller; 34 is a feeder for feeding the transported paper to the first introduction port 15 via the guide member 35. This is the paper feed roller.

Reference numeral 41 denotes a third case, which is removably placed on the upper surface of the protrusion 21b of the second case 21, and has a discharge port 42 at the bottom of the third case facing the second inlet 25 for discharging paper. is provided. And inside the case 41,
a conveyor belt 4 that conveys the paper ejected by the second ejecting roller 223 to a position facing the second ejecting roller 23;
3 is provided. A first position (the position shown by the solid line in FIG. 3) where the paper conveyed by the conveyor belt 43 is guided to three reversing rollers 44 (to be described later), and a first position (the position indicated by the solid line in FIG.
A second switching guide member 45 is provided that can be switched to a second position (the position indicated by the broken line in FIG. 3) that guides the user. 4
6. 47 is a guide member, 48 is a return roller, 49 is a rattling roller, and the sheet introduced into the guide member 46.47 is moved to the position shown by the broken line to bring the paper into pressure contact with the return row j248. The copied paper is ejected to the paper ejection tray 50 with the surface facing downward.

The three reversing rollers 44 have a row of 243 m as shown in FIG.
When the rows 943b and 43c in contact with the rows 943b and 43c move to the position indicated by the broken line, the paper is ejected to the paper discharge tray 50, and when they are at the position indicated by the solid line, the paper is introduced into the guide members 46, 47.

FIG. 5 shows a control system of the embodiment as a block diagram. Reference numeral 101 denotes a single-sided copy mode switch that is turned on when performing single-sided copying, and when the switch is turned on, a single-sided copy mode signal is output. Reference numeral 102 denotes a duplex copying mode switch that is turned on when performing duplex copying, and when it is turned on, a duplex copying mode signal is output. Reference numeral 103 denotes a composite copy mode switch which is turned on when performing composite copying, and when turned on, outputs a composite copy mode signal.

Reference numeral 104 denotes a back side ejection mode switch that is turned on when ejecting the paper to the ejection tray 50 with the back side facing up. When the switch is turned on, a back side ejection mode signal is output. These mode switches 101 to 104 are provided in the first case 1.

110 is installed in the first case 1 and each mode switch 1
A control device that inputs mode signals output from 01 to 104 and outputs each command signal, and when a single-sided copy mode signal is input, a paper feed device 111 consisting of a paper feed row 27, separation roller 9, registration row 210, etc. an image forming command signal that operates an image forming device 112 consisting of a photoreceptor drum 3, a transfer charge 5, etc.;
A paper discharge command signal that operates the paper discharge device 113 consisting of four components, etc., and a first paper discharge command signal that drives the second paper discharge roller 23 of the second case.
A first drive command signal that operates the drive device 117, and a third drive command signal that operates the drive device 117.
When a second drive command signal is output to operate the second drive device 118 that drives the case conveyor belt 43, the three reversing rows 244, and the return roller 4B, and a double-sided copy mode signal is input, in addition to the command signal, , a first switching command signal that operates the first solenoid 114 that switches the position of the first switching guide member 24 of the second case 21, and the pressure plate 2.
9, a second switching command signal that operates the second solenoid 115 that switches the position of
28 and feed loaf 33, 34, etc.
16, and when a composite copy mode signal is input, the position of the second switching guide member 45 of the third case is switched in addition to each of the command signals except for the first switching command signal. When the third switching command signal that activates the third solenoid 118 is output and the back side discharge mode signal is input, the first switching command signal, the second switching command signal, the transport command signal and the third switching command signal are removed. In addition to each command signal, outputs a fourth switching command signal that operates the fourth solenoid 120 that switches the position of the three reversing rollers, and a fifth switching command signal that operates the fifth solenoid 121 that switches the position of the rattling roller 49. It is supposed to be done.

Further, in FIG. 5, 131 and 132 are provided in the second and third cases 21 and 41, respectively.
When using the first case 1 alone, 131 and 132 are the connecting terminals 1a3 and 1.
When the first and second cases 1.21 are used in combination as shown in FIG. 1, 131 is connected to the connecting terminal 133 and the first and second cases 1. 2,
When using the third case 1, 21°41 in combination, 1
31 and 132 are connected to connection terminals 133 and 134.

Next, a method of using the embodiment configured as described above will be explained.

When performing single-sided copying exclusively, it is sufficient to use the first case 1 alone, and when the single-sided copying mode switch 101 is turned on, the control device 110 receives paper feed command signals, image creation command signals, and paper discharge command signals. etc. are output, the paper feed device 111 operates, and the paper A is transferred to the transfer unit 6 by each row 27, 9.10.
The image formed on the photosensitive drum 3 is copied onto the paper. The paper that has been copied on one side is transferred to the conveyor belt 12, the fixing roller 13, and the first paper ejection row (14).
The paper is discharged to the outside of the first case 1. Furthermore, when the single-sided copying mode switch 1010 is turned on, the first and second drive command signals are output, but since signals 131 and 132 are not connected to the control device 1tllo in FIG. 5, the first and second drive devices do not operate. .

To provide double-sided copying function, as shown in Figure 1, the second
The first case 1 is placed on the case 21. and the fifth
131 shown in the figure is connected to the control device 11 via the connection terminal 133.
Connect to 0. When the duplex copying mode switch 102 is turned on, a first switching command signal is output in addition to the above-mentioned command signals, the first solenoid 114 is activated, and the first switching guide member 24 is moved to the first switching direction shown by the solid line in FIG. Switch to position. Accordingly, the friend paper A that has been single-sided copied in response to each of the command signals is ejected by the first ejecting roller 14, and is guided to the stock section side 27 by the first switching guide member 24 as shown in FIG. be done.

When a predetermined number of single-sided copies are stocked, the output of the first switching command signal is stopped and the first switching guide member 2
4 switches to the second position shown by the broken line, and the control device 110 outputs a second switching command signal, a transport command signal and a second position.
A drive command signal etc. is output, the second solenoid 115 is activated, the pressure plate 29 is switched to the position shown by the broken line, and the paper A is
is conveyed by the conveying roller 2B and the feeding roller 233.34 and fed to the transfer section 6 again. Then, the image formed on the photoreceptor drum 3 is copied onto the back side of the paper A, making a double-sided copy, and the paper A is transferred to the conveyor belt 12 in the same manner as described above.
, is conveyed by the fixing roller 13 and the first paper ejection roller 14 and introduced into the second case 21, the first switching guide member has been switched to the position indicated by the broken line, and the second paper ejection roller 223 has been moved to the second case 21. Since it is driven by the drive command signal, the sheets introduced into the second tray 1q-1 are discharged onto the paper discharge tray 50.

When the double-sided copy mode switch 102 is turned on, a second drive command signal is output in addition to the command signals described above, but since the control device 110 is not connected to the second drive command signal 132, the second drive device 118 does not operate.

Further, when only one-sided copying is performed by combining the first case and the second case 21, the one-sided copying mode switch 101 may be turned on in the same manner as described above. That is, when the single-sided copy mode switch 101 is turned on, the first switching command signal etc. is not output, but the first drive command signal is output and the second paper discharge roller 23 is driven. 1 is introduced into the second case 21 by the paper discharge roller 14 and the second
The paper is ejected to the paper ejection tray 50 by the paper ejection roller 23.

Then, only one side is copied and the paper is ejected to the paper ejection tray 50.

To provide a composite copy function, as shown in FIG. 2, the first case 1 is placed 14- on the second case 21, and a third
Place the case. Then, as shown in FIG. 5, 131 and 132 are connected to the control device 110 via connection terminals 133 and 134. and composite copy mode switch 103
When the switch is turned on, in addition to the command signals that are output when the duplex copying mode switch is turned on, except for the first switching command signal, a third switching command signal is output, and the third solenoid 119 is activated to switch to the second switching mode. The guide member 45 switches to the second position shown by the broken line in FIG. Then, the sheet of paper that has been single-sided copied in accordance with each of the commands is introduced into the second case 21 by the first paper discharge roller 14, and the introduced paper A is further introduced into the third case 41 by the second paper discharge roller 23.

On the other hand, since the second drive command signal is output from the control device 110 and the second drive unit [118] is operating, the sheet of paper introduced into the third case 41 is conveyed by the conveyor belt 43 and is guided to the second switching guide. The second inlet 25 is connected by the member 45.
Then, the paper A is stocked in the stock member 27 with the front surface facing downward. And stocked paper A
When the number of sheets reaches a predetermined number, the output of the second switching command signal is stopped and the second switching guide member 45 is switched to the first position shown by the solid line in FIG. The command signal is output, the second solenoid 115 is activated, and the pressure plate 29 is switched to the position shown by the broken line. Since the transport device 116 is activated by the transport command signal, the paper A is moved to the transport row 228 and the feed roller 733.
．． 34 , the paper is fed to the transfer unit 6 via the first introduction port 15 .

Then, the image formed on the photosensitive drum 3 is copied onto the surface of the sheet of paper to perform composite copying, and the sheet of paper A is transported by the transport belt 12, fixing roller 13, and first paper ejection row 214 in the same manner as described above. The paper A, which is then introduced into the second case 21 and further introduced into the second case 2I, is introduced into the third case 41 by the second paper discharge row 223. The second drive command signal operates the second drive device 118 to drive the conveyor belt 43, the three reversing rows 244, etc., and furthermore, the second switching guide member 45 is switched to the first position. The sheet of paper introduced into the third case 41 is conveyed by the conveyor belt 43 and the reversing roller 44, and is discharged onto the paper discharge tray 50.

In this case, the roller 44b of the three reversing rollers 44.

44c is because the fourth switching command signal is not output from the control device 110 and the fourth solenoid is not operating.
It is located at the position indicated by the broken line shown in FIG.

When performing back-side paper ejection, when the back-side paper ejection mode switch 104 is turned on, in addition to each command signal output from the control device 110 when the single-sided copy mode switch 101 is turned on,
The fourth switching command signal is output, the fourth solenoid 120 is activated, and the rollers 44b and 44c of the three reversing rollers 44 are located at the position shown by the solid line in FIG. 4. Then, in the same manner as described above, the sheet of paper that has been single-sided copied in response to each of the command signals is introduced into the second case 21 by the first sheet discharge roller 14, and further transferred to the third case 41 by the second sheet discharge roller 17--223. It is introduced and conveyed by the conveyor belt 43. Then, the paper A transported by the transport belt 43 is introduced into the guide member 46t47 since the reversing triple row 244 is located at the position shown by the solid line in FIG. 4, and when the paper sheet is completely introduced, A fifth switching command signal is output from the control device 110, and the fifth solenoid 121
The tatakiro-249 is operated to position the tatakiro-249 at the position shown by the broken line in FIG. The person is returned downward, and the paper A is ejected onto the paper ejection tray 50 by the three reversing rollers 44 with the back side facing upward.

When only one-sided copying is performed by combining the first case 1, second case 21, and third case 41, when the one-sided copy mode switch 101 is turned on in the same manner as described above, the control device 1
Since the first drive command signal and the second drive command signal are also output from 1G, the paper sheet that has been copied on one side is ejected by the first paper ejection roller 14, and then transferred to the second paper ejection roller 23, the conveyor belt 43, and The three reversing rollers 44 discharge the paper onto the paper discharge tray 50 . Also, in the case of double-sided copying, if the double-sided copying mode switch 102 is turned on as described above, the second drive command signal is also output, so that after the double-sided copying paper A is discharged by the second paper discharging roller 23, The paper output tray 50 is moved by the conveyor belt 43 and the three reversing rows 244.
The paper is ejected.

In the embodiment described above, double-sided copying is possible by combining the first case 1 and the second case 21, but it is possible to perform double-sided copying by providing the second case 21 with a reversing guide member (not shown) for reversing the paper. It is also possible to perform a synthetic call.

As described above, the present invention includes an image forming device inside, a case provided with an inlet for introducing paper at the bottom, and a control device that outputs an image forming command signal to operate the image forming device,
In addition to the command signal, the control device outputs a switching command signal that switches the position of a switching guide member provided outside the case, and a transport command signal that operates a transport device outside the case that transports paper. Therefore, it is possible to perform single-sided copying with the case alone, and also to combine this case with another case equipped with a switching guide member and a transport device that are operated by the switching command signal and transport command signal. In addition, since the next sheet of paper that has been copied on one side can be introduced into the image forming apparatus again by the switching guide member and the conveying device, double-sided copying or composite copying can be performed.

Therefore, if the user only needs the double-sided copying function, he can purchase the case and another case that allows double-sided copying, and it is economical because he does not have to purchase unnecessary equipment as in the past. It is true. In addition, after purchasing just the case, if your needs change and you need a double-sided copy function, etc., you only need to purchase the other cases you need, which is economical and responsive to changing user needs. It has the following effects:

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram when double-sided copying is performed by placing the first case on the second case, and Figure 2 is an illustration when performing composite copying by placing the first and third cases on the second case. 3 is an explanatory diagram of the second switching guide member, FIG. 4 is an explanatory diagram of the three reversing rollers, and FIG. 5 is a block diagram of the control system of the embodiment. 1... First case 3... Photosensitive drum 5... Transfer charger 7... Paper feed roller 14... First paper ejection roller 15... First introduction port 24... First Switching guide member 28...Conveyance roller 101...Single-sided copy mode switch 102...Double-sided copy mode switch 110...Control device 21-

Claims (1)

[Claims] 1. It is equipped with an image forming device that includes the stages of forming, developing, and transferring an electrostatic latent image, and a paper feeding device that feeds paper to the image forming device on one side of the image forming device; The other side has a paper discharge device for discharging paper from the image forming device to the outside, and further includes an inlet for introducing paper into the image forming device at the bottom between the paper feed device and the image forming device. The case provided and
Each mode switch installed in the case outputs a single-sided copy mode signal and a double-sided copy mode signal, and a mode switch installed in the case that operates the paper feeding device when any one of the mode switches is input. a control device that outputs a paper command signal, an image forming command signal for operating an image forming device, and a paper ejecting command signal for operating a paper ejecting device; In addition to command signals,
A switching command signal for switching the position of a switching guide member provided outside the case at a position facing the paper ejecting device, and a transport command signal for operating a transporting device outside the case for transporting paper are output. A copying device characterized by: