JPS6122337A - Copying machine - Google Patents

Abstract

PURPOSE:To set a copy mode of copy magnification, etc., to a specific mode by mounting an attachment such as an automatic feeding part on the copying machine, and performing mounting operation or powering on the attachment. CONSTITUTION:Originals are stored in a bucket part, and an automatic original feeding device ADF40 and a power source are both turned on and then a copy button is turned on. Then, originals are fed out through the operation of the feeder roller 60 of the ADF, separated by a separating roller 61 and guided to a register roller 62, and fed by one sheet at specific timing. A lamp 16 and a mirror 15, 17 begin to move forth and the original is scanned and exposed to obtain a copy on transfer paper. A set number of copies are taken, and then an end signal is sent to the ADF40 to raise a claw 46 and rotate a belt 63 again, scanning a next original to the belt 63. An original of A4 size can be copied continuously to A5, magnification is fixed only by setting the ADF, and the ADF and copier are easily operated.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a copying apparatus capable of multiple copying modes such as variable size copying.

Conventionally, copying machines have made simple black-and-white, same-size copies from original images, but there are also machines that can produce color PI images, those that can change the magnification of original images and make copies, and even machines that automatically copy originals one after another. It has become known that copies can be made by sending documents to a computer. However, these copiers are generally large and
It is extremely expensive and is widely used by general users.

'fQ Treated like a whisper! It was rough.

The present invention eliminates the above-mentioned drawbacks. When a copying machine attachment such as an original automatic feeder is attached to a copying machine, the copying mode such as the copying magnification of the copying machine can be changed by the mounting operation or by turning on the power to the attachment. is characterized by setting it to a specific mode. It is also characterized in that 'In input to the attachment and %# input to the copying machine are made separate. As a result, it is possible to simplify the process of copying Il1 works, and also to quickly change from ordinary copying of Atsutehara 11!1 (book) to continuous copying using automatic copying of sheets. can be done. Also, it increases the safety level and W
jB can be made accurately.

The present invention will be described in detail below with reference to the drawings.

FIG. 1 is a sectional view of a variable-magnification copying apparatus having an automatic horizontal original feeding device to which the present invention can be applied. Figure 2 is a plan view of the operation section of the copying machine shown in Figure 1.

The surface of the drum 11 is made of a three-layer photoreceptor using an AASZ conductor, is rotatably supported on a shaft 12, and starts rotating in the direction of an arrow 13 in response to a copy command.

When the drum 11 continues to rotate in the fixed position, the
The original @ placed on <14 is irradiated with an illumination lamp 16 configured integrally with a first scanning mirror 15, and the reflected light is scanned by the first scanning mirror 15 and the second scanning mirror 17. . The first scanning mirror 15 and the second scanning mirror 17 are l:
By moving at a speed ratio of 1, the original is scanned while the optical path length in front of the lens 18 is always kept constant.

The reflected light image of the upper sweetfish passes through the lens 18, the third mirror 19, the fourth mirror 20, and then is fixed on the drum 11 at the exposure section 21.

The drum 11 is charged (for example, +) by a negative charger 22.
After that, in the exposure section 21, the image illuminated by the illumination lamp 16 is subjected to slit exposure.

At the same time, the static electricity of the reverse polarity (for example, -) is removed using the static eliminator 23, and the entire surface of the rear foot is exposed to light from the lamp 24, and the drum 11 is exposed:
1/[Form the last #hyrosubstance.

The electrostatic latent image on the photosensitive drum 11 is then visualized as an image by the device 25.

Transfer paper 27- in cassette 26 1 or 26-2
1 or 27-2 is sent into the machine by the paper feed roller 28-1 or 28-2, and is fed to the paper feed roller 28-1 or 28-2, and
1 or 29-2, accurate timing is determined by the second register roller 30, and the toner is sent toward the photosensitive drum 11 so that the leading edge of the toner on the drum and the leading edge of the paper coincide.

Next, while the transfer paper 27 passes between the transfer charger 9 and the drum t1, the strip on the drum 11 is transferred onto the transfer paper.

After the transfer is completed, the transfer paper is guided to the conveyor belt 8, and then to the fixing roller pair 7-1, ? -2, is fixed by pressure and heating, and is then discharged to tray 6.

In addition, after the transfer, the drum 11 is cleaned with an elastic blade.
ll) - Clean the surface with cleaning equipment@5 and proceed to the next cycle.

The copying apparatus shown in FIG. 1 is capable of reducing the information on the document placed on the document platen glass 14 and forming it on the photosensitive drum 11. However, in order to form this vastly reduced information, it is necessary to reduce the information. The position of the lens 18 is changed according to the magnification, and the first scanning mirror 15 and the lamp 1 are changed according to the reduction magnification.
6 and the speed of the second scanning mirror, but since such a mechanism is already known, detailed description thereof will be omitted here.

Reference numeral 40 designates an original automatic feeding device, 41 a C-F packet section 142 that stores the original, a feeder section that separates and feeds the original, and 43 a center section that sets the original on the exposure surface 14.

The 2-1 cause is the operation panel 80 of the copying machine shown in Figure 1.
, 31 is a dial for setting the number of copies, 32 is a Shizumichi copy button for commanding the number of copies set with the dial 31, and 34
A button that commands the stop of the tjld image shown in
36 indicates a button attached to the upper stage in Figure 1 and commands the feeding of transfer paper from 26-1 (9 cassettes);
The methane shown at 7 is attached to the lower membrane in FIG. 1 and instructs the six cassettes to feed out the transfer paper from 26-2, and is stored in the cassette F selected by button 36 or 37. The transfer paper size is displayed on the display section 38.

A recess 41 is formed in a part of the operation panel, and within this recess 41 is a button for instructing the size to be reduced.
'40-1 to 40-5 are stored in this recess 4.
1, the upper part N5 is provided with a lid 39 which is slidably provided so as to surround the recessed part, and constitutes a reduction operation part.

This lid 39 is closed in the direction of the arrow as shown in Fig. 2-1.
You can make the buttons 40-1 to 40-5 inoperable, or you can slide open button 1139 and press button 4.
0-1 to 40-5 can also be operably exposed.

FIG. 2-2 is a plan view of the operating section 50 of the device ff 140 provided on the plane of the automatic document feeder 40 (hereinafter referred to as ADν), and 8Ws in the figure is '#L#, switch, 514
A button 52 is used to automatically feed and copy the original sheets in the bucket section, a button 52 is used to set and copy the original sheet by hand, and a button 53 is used to interrupt automatic feeding.

The operation of ^D140 in figure wI1 will be briefly explained.

After storing the original in the packet section and turning on both the copier and the ADF, turn on the auto button 51 of the DIF operation section 50 and turn on the copy button 32 of the copier operation section 30, the feeder roller 60 of the ADF will turn on. As a result of the operation, the document is sent toward the separation roller 61 and only one sheet of paper is separated by the separation roller 61 and delivered to the register roller 62 . The roller 62, which is normally stopped, is operated at a predetermined timing for the time required to feed one sheet and rotates on the document platen 14 to feed the paper onto the belt 63. bellshiro 3
The raw pot that has been inserted into the container is sent to a lowering claw 46 at a predetermined timing in advance, and is stopped there. belt 63
rotates a little further and stops at a predetermined timing. The belt 63 slides on the document until it stops. Then, the lamp 16 and mirror 15, 17 of the copying machine start to move forward to scan and expose the original, and a copy is obtained on transfer paper as described above. When the number of copies set with the dial 31 is completed, a completion signal is sent to the 8Dl'40 and the claw 46
Then, the bell) 63 is rotated again to eject the platen from above the platen 14. Along with this discharge work, the roller 60
．． 61 and 62 to send the next ff114 towards Velshiro 3. As described above, Fi copying is repeated by exchanging originals one after another. Note that 44 and 45 in the input DF 40 are detectors for detecting the presence of a document. This is to detect jams. The detectors 44 and 45 are of a reflective type using several light emitting diodes for one light receiving element. Further, the belt 63 is grounded to the main body in order to remove the WIp'#IL load that is generated and accumulated on the belt 63 when the document is held and conveyed.

Further, it is set to be movable from the front side to the opposite side of the copying machine so that it can be separated from the ADp4Qij platen 14. Automatically when you set it and leave DF4Q
A switch to turn off the power for DF 11111141
It is provided in DF4Q. As a result, ADν
40 is made into a non-operating camphor.

FIG. M3 is an operation control block diagram of the device of FIG. 1. In the figure, ADIF O is the sequence operation control section of the ADF 40 shown in FIG. 1, 0OPYO is the sequence operation control section of the copying machine shown in FIG.
-1.2-2 shows 9′#! L source switch, 51-5
Auto, hand wJ shown in 3Fi z-z diagram.

Stop button, 31, 32, 34. 40 is the copy number dial with 2nd = shown in the figure, copy button.

39-1 is a group of switches for specifying the knob' button and the magnification ratio, and 39-1 is the magnification designation switch that turns on to the right when the 7 tab 39 in Figure 2-1 is opened, and to the left when closed. .

DOLIT of the output signal of the control unit ADFO of ADIF40
No. 14 that drives the plunger to raise the ij claw A5, 1M2 is the ON signal of the motor that drives the belt 63, and D
FR is a clutch-on signal that connects power to the belt motor to drive the rollers 60, 61, 62, and the output signal OFT of the copy control unit 00PYO is as follows. Synchronized, 1 MIFi drum 11 rotation ON signal, P'y is a signal that turns on the candy roller 28-1゜29-1.28-2.29-2, RGR is a signal that turns on the registration roller 30, FAD is The lamp 16 is turned on and the optical system (lamp 16.
A signal to move the mirror 15, 17) forward, a signal to move the optical system backward after BAD exposure is completed, and RD is a signal to set the mirror system to a predetermined position according to turning on the magnification ratio designation switch 40, and to set the mirror system to a predetermined magnification ratio. This is a signal that sets the scanning strayness of the optical system to a predetermined speed so that the machine can operate, etc., and the BP of the human signal
I, BPI ij This is a position detection signal for stopping the movement of the main mirror 5 and reversing it. This BPI, BPI
is generated when the mirror is activated by a microswitch provided in the movement path of the mirror 15, and BPsViA4 size and BPs are caused by the switch provided at a position corresponding to the length of the A3 size WA paulownia. RG occurs when the mirror operates a microphone switch provided in the middle of the movement path of the mirror 15 to turn on the registration roller 30. Also, the signal going from AD'FO to 0OPYO (IQA D, T, A D Pij A D IF
Off*e4(7) This occurs when a jam is detected in the packet section 40, and when #Q[off is detected in the packet section 41. ^D and T are for preventing the copy operation. , ADF is for preventing copying from being resumed after copying of the dialed number is completed. Note that the document detection signals obtained by detection i44, 45.47 are each yDpl, 2.3.

Therefore, input I) T corresponds to #DPl, 2, and ADP corresponds to FDP3. SWS is AI)? When the 4Q is set on Plana/14 and the power switch 8W1 is turned on, the signal generated changes the magnification ratio from A3 to A4.
The Q feed roller is not turned on, but is turned on each time the automatic operation is completed. On the contrary, oopya Karan DFO
The signal OJ to
This is to prevent the operation of BP8ij.
This is for replacing the original by a signal generated when the exposure scan of the number of dials is completed and the reversal position is detected.

Figure 5 1jAD] Fo, 0OPYOKtaL power supply circuit, (a) is the ADF section, (b) is the oopy
That's it. In the figure, 500 and 501 are step-down transformers, 502 and 503i1 rectifiers, and 504 and 505 are smooth code 7 and VOI.

When I set the vaz11 constant pressure circuit and PSijADIF40 with #& on the mosquito camera platen as shown in the figure, 1! This is a switch installed in the ADF4Q that is turned on by crimping the tiles and activates the relay 1. When the K1rjADiF40 is set on the platen, the ADF's imi switch SWs,! :
This relay operates when the 11L# switch SW snow on the Cobia side is turned on, and turns on the contacts 404 and 405 in the wJ4 diagram in the direction shown. Il#'i switch 8W-
It works when turned on. That is, 'vL source switch SWt
The voltage that is smoothed by converting alternating current into direct current by turning on is VOl
When the pressure is maintained constant and ^Dν40 is set on the platen, the voltage VB is applied to the relay through the contact R.
Outputs I. However, the iiE source switch 8W on the copier side
When 8 is not on, relay 2 is not off, so there is no output. Also, when the ADIF is separated from the platen as described above, the switch IS is turned off, so the V
Bt is not output. But ml on the copia side! ! ! Voltage VB is output regardless of whether the power switch 11 on the D1 side is on or off.

@6 The sequence operation will be briefly explained according to time chart 4 in Figure 6. When the ADF is set on the platen, the input DF is set to auto, and the copy button is turned on after swt and SW2 are turned on, the drum motor M1 and the bell motor XM2 start rotating, and each charger operates. At the same time, rollers 60, 61, and 62 also rotate for a predetermined period of time to feed the document to the belt. The document is fed all the way to the claw within one rotation of the drum from its stop position. After one rotation, one FAD is emitted at a predetermined timing to cause the optical system to start forward movement (exposure).

This start is the stop layer of the belt motor M2 to prevent the document from shifting due to the belt. Paper feeding by the paper feed roller 18 is also performed at this time.

When the optical system reaches the inversion position BP, the signal IFAW is turned off, the BAY is turned off, the total light is turned off, and the optical system is returned. After that, when the drum reaches the stop position 1iDHP, the second exposure operation is started. If it is the number set with the dial 31 or 2, then upon detection of the reverse position, the BPS is generated, the discharge signal DoUT is turned on, the pawl 46 is operated for a predetermined period of time, and the belt is operated to discharge the document. After this time, the rollers 60 to 62 are operated again by the DPR signal to feed the next coolant.

When this DOυT falls, that is, when the claw falls, the detector FDP! When detecting a field in J3 (no original is ejected), a jam is displayed (signal 11LDJ is generated). Further, if the detector FDPI does not operate until the belt is fixed after the detector FDPI is activated, it is displayed that a jam has occurred in the center portion. In other words, I.M.P.
The timing for turning off is a while after the document reaches the normal νDPI.

In the above manner, two copies are repeatedly made for each original.

If the ADF is set to manual, WW4 feed will not be performed. In addition, the above-mentioned DF jam (ADJ), copy paper jam (Off), and 5 DP without original in the packet section.
) and DIF, and when the copier stop button is on (5Top t, 2), the next document feed is not allowed. According to the circuit example shown in Fig. 7, $
1. It can be done. 701-703 are and gates, 704
,705 Ht 7 gates, 706,707 if (
708 to 710 are timers that form a start time signal of time chart F at the rising edge of the input. Copier control circuit example #F! It is shown in Figure 8. 8oL~809 is and gate, sto, stt is or gate, 812~
814 is a 7-rip 70-tube that turns on at the rising edge of the input to S and turns off at the rising edge of the input to r; 815 is a counter that outputs when it counts the number of BPIgI set by the dial 31; and 816 is an inverter. Fs8 as a signal
is a signal that becomes 1 when the switch] Fs is off, and the ADF
If the distance is set to t, normal copying can be performed regardless of whether an ADF is used or not. [1B is a signal that becomes 1 when relay Kl is on so that relay Kt is activated when DF4Q is set on the platen.

The signal generated when the 0HPk'i optical system returns to its original position is generated by actuating the microswitch provided at the original position using the jl thread. 8IZa and 8IZb are selected based on the cassette selection by the operation unit 30.
(7) -x Hee signal, the former is small in size and is used to determine the scanning distance by selecting the signal BPi obtained by a switch provided at a short position in the optical system path. The latter is large in size and BPII is selected. But ^^
When 'or' is set, the short distance signal BPI is forcibly selected by setting the signal SWS to 1.

Note that when 5TOPI, 2 oar, ^D, T, and ADP occur, the copy # operation is stopped by the inverted signal BP. However, the drum is stopped by the drum stop position signal DMP.

Fig. 4 shows a copying magnification designation circuit, and 39-1 is a switch for changing magnification and reduction, which lights up a lamp 401 when the setting is set to ``1/2'', and lights up a lamp 402 when set to ``reduced'', and displays each variable magnification mode. allows for selection. Reference numeral 403 denotes a group of switches for specifying the variable magnification mode, and each symbol corresponds to that in FIG. 2-1, and when each switch is turned on, a variable magnification mode signal is sent.

404 and 405 are contacts Ia that turn on to the left when the set ADF is powered on (relay Kl), and 420 is a contact that turns off, which is related to the operation of the switch group 403 (designates the magnification changing mode from A3 to A4R). 406 is a buffer amplifier for the variable magnification signal, 4o7 is a latch circuit (7 lip, 70 tube, etc.) that holds the output of the signal until copying, 407 to 4u
is a light emitting diode for display in specified variable magnification mode, 422 is 4
Micro-movement theory for forming the 07 ejection signal IJJ, without turning on the ADF or even after turning on the ADF, turn on the switch for reduction mode A3→B4 while the ADF is away from the platen as described above. diode 42
1. X flow through point m 420, diode 407
lights up and generates an output from the launch 407, A3
→ Perform the necessary operations to scale B4 and set the copier. When A'DP is set, the contact 420 is turned off, and on the other hand, the corresponding lunch 407-3 is turned on and ^3-A4 is changed even if there is no instruction to convert A3 to A4. Set the copier to run in scaled mode by performing the necessary actions.

At the same time, as shown in FIG. 8, the input of <SWS forces the inversion accompaniment to select BPI.

This allows a specific document size (for example, 14) to be copied in succession to a specific reduced size (A5). Since the magnification is determined only by setting the input DIF, handling of the DF and copier becomes extremely easy.

Also, if the ADF and copier power is not turned on, the ADI
Since F and copier do not work, there is no mistake of copying without setting 4 originals. It is also versatile because it can be easily copied without using a DF. Furthermore, even originals that cannot be automatically fed can be inserted between the input DF and the copier and only the outside of the original can be copied, so if there is another original in the ADF for the same special imprint, that original and the rQ that cannot be automatically fed can be copied. and can be copied together on one transfer paper.

In the present invention, the touch screen 7F can be applied not only to ADFK but also to a manual document feeding device (DI).

Furthermore, when a color copier is used as a copier, a specific color mode (for example, red and black) can be specified using the seven buttons on the attachment.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of the transfer device according to the present invention, Figure 3 is a block diagram of the control section in Figure 11, #PJW, Cow 7 and Figure 1 F
i Fig. 3 Partial circuit diagram of rc, Fig. 5 Fi star 3 (2)
1 source circuit diagram of FIG. 6ri is an operation time chart diagram of FIG. 3, and in FIG.
UT is the document ejection signal, 8Wn is the power switch for the automatic document feeder, SWS is the copier power switch, 404, 40
5 is a switch for switching the magnification to a predetermined mode. Tasato Canon Co., Ltd.

Claims (3)

[Claims] (1) A copying apparatus that forms a copy image by exposing a document image on a document table onto a copy material has multiple copy image forming modes, and also has a feeding means etc. that automatically feeds the document to the exposure section. A copying apparatus characterized in that the copying apparatus is set to a specific mode among copy image forming modes by attaching an attachment to the copying apparatus. (2) The copying apparatus according to paragraph 1, wherein the copy image forming mode is a mode for copying a document image with variable magnification, and the specific mode is a specific variable magnification copying mode. (3) The copying device according to paragraph 1, wherein the copying device is set to the specific mode by turning on power to the attachment.