JPH02105180A - Copying system - Google Patents

Abstract

PURPOSE:To copy a necessary part without separating a computer form (CF) paper by outputting an automatic document feeding command based on data from a comparison means for comparing the set number of documents with the counting number of documents and making a control means in a main body output a processing signal for copying operation. CONSTITUTION:A port for feeding CF paper 230 is arranged as a port for feeding documents in the case of copying the CF paper document and in this part a CF hole detecting sensor SN 6(210) and a CF paper detecting sensor SN 7(220) are provided. And by comparing the set number of documents with the number of copied documents, the automatic document feeder 2 is made to output the commands for feeding or ejecting documents and simultaneously the processing signal for the copying operation is made to be outputted by the control means in the copying machine main body 1. Then, the necessary part in the series of the CF paper can be copied by commanding the number of the documents to be copied. Thus, only the necessary part can be copied without separating the CF paper.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a copying system capable of copying a convenience store, Yugetsu paper (computer form paper 2CF paper), that is, folded continuous paper as a document.

[Prior Art] This type of copying system is disclosed in, for example, Japanese Patent Application Laid-Open No. 59-7245.
The one described in Publication No. 5 is known.

In the above-mentioned prior art, computer output paper (hereinafter referred to as CF paper) is fed onto a platen and copied in addition to a normal original consisting of individual manuscript papers. It has a common paper feed port for paper documents, and detects whether the document inserted into the paper feed port is a regular document or a CF paper document.

Automatically switches to each feeding control.

[Problems to be Solved by the Invention] By the way, in the above-mentioned conventional technology, when copying continuous CF paper, all set originals are copied, so in the case of individual originals, it is only necessary to set the necessary originals. It's good, but in the case of CF paper, in order to copy only the necessary pages, it was necessary to separate the continuous CF paper and copy it.

The present invention has been made in view of the above-mentioned problems of the prior art and has been made to solve the problems, and its purpose is to provide a copying system that can copy a necessary portion of CF paper without cutting it off.

[Means for Solving the Problems] To achieve the above object, the present invention provides a setting for inputting the number of originals to be copied in a copying system having an automatic document feeder capable of feeding a series of computer paper originals. a document count input device for counting the number of copied document sheets; a comparison device for comparing data output from the set document count input device and the document count device; and a main body control device for controlling a copying operation. ,
The automatic document feeder control means outputs a document feed/discharge command to the automatic document feeder based on the data from the comparison means, and simultaneously outputs a copy operation processing signal to the main body control means. .

[Operation] The above means inputs the data output from the set number of originals input means and the original count means to the comparison means, outputs the comparison result from the comparison means to the document feeder control means, and uses this data to control the document feeder. Since the control means outputs a document feed/discharge command to the automatic document feeder and at the same time outputs a copy operation processing signal to the main body control means, a necessary portion of a series of CF sheets can be copied by specifying the number of sheets. Therefore, only the necessary portion can be copied without cutting off the CF paper.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic diagram showing the overall configuration of a copying machine to which a copying system according to the present invention is applied, in which 1 is the main body of the copying machine, 2 is an automatic document feeder (hereinafter referred to as ADF), and 3 is a large-volume paper feeder. Unit 4 is a sorter.

In the figure, the ADF 2 is placed on the platen of the copying machine main body 1 and feeds the original onto the platen.

The document support surface of this platen is scanned with illumination light, the image of the document is copied onto the copy sheets supplied from the bulk paper feed unit 3, and the documents are sorted by the sorter section 4.

FIG. 2 is a configuration diagram of the ADF 2 in FIG.
0 is a calling roller, 20 is a separating roller.

30 is a separation blade, 40 is a pull-out roller (driven side), 50 is a pull-out roller (drive side), 60 is a document setting table, 70 is a document size sensor (registration sensor: 5N2), 80 is an entrance guide mylar, 90 is a reversing Registration sensor (SN).

Reference numeral 100 denotes a document conveyance belt, which consists of an endless belt.
It is provided inside the opening/closing cover 240 of the ADF 2. Further, 110 is a turn roller, 120 is a switching claw (reverse), 1
30 is an intermediate conveyance roller, 140 is a reversing housing opening, -ra, 1
50 is a press roller, 160 is a conveyance roller, 170 is a paper discharge sensor (SN4), 180 is a reversal entrance sensor (SN5)
, 190 is a static elimination brush, 200 is a document set sensor (
SNI), 210 is a CF paper hole detection sensor (CF hole detection sensor 5N6), 220 is a CF paper document detection sensor (C
F paper detection sensor 5N7), 230 is a CF paper document feed port (CF paper feed port).

In the figure, a normal document is placed on the document set table 60.
If the leading edge of the original is set so that the original setting sensor 5NI (200) is turned on, copying becomes possible. If the print switch of the copying machine is pressed in this state, the ADF 2 starts feeding paper based on the paper feeding command from the copying machine main body 1.

The original is advanced forward by the rotation of the calling roller 10.

Due to the action of the separation roller 20 and the separation blade 3o, only the lowest document reaches the pull-out rollers 40.about.50. When the trailing edge of the document passes the registration sensor SN2 (70), the document conveyor belt 100 moves a predetermined distance.
stops. At this time, the trailing edge of the document is controlled so as to be located at the document reference.

When the original document stops on the platen, the copier activates the optical system to image the original image on the drum.

When a predetermined number of copies have been completed, the m copying machine issues a feed command for the next document to the ADF 2, and also sends a discharge command to the ADF 2 to discharge the already copied document.

As a means of increasing copying efficiency, it is sufficient to start feeding the next original before the copying of the previous page is completed, and then discharge the previous page. How to efficiently replace manuscripts like this.

When the next document stops on the platen, a part of the previous document is on the document conveyance belt, but is ejected without stopping due to the force of the intermediate conveyance roller 130.

There is a CF paper feed port 230 as a paper feed port when copying a CF paper original, and this part has two sensors (CF
A hole detection sensor SN6 (210) and a CF paper detection sensor SN7 (220) are provided. There is a guide plate in this part that guides the CF paper to prevent the CF paper from skewing. Also, this CF paper feed port 220
has no means of transportation.

FIG. 3(a) is a block diagram of the control circuit of the ADF, in which 300 is a CPtJ and 310 is an input buffer.

320, 330 and 340 are servo circuits, and 350 is a driver circuit.

In the figure, information is transmitted between the copying machine main body and the ADF through serial communication.

The ADF is the input section, paper feed section, and transport section for each sensor.

Each motor Ml, M2 . 3 that drives M3
It is composed of three servo circuits 320, 330, 340, and a driver circuit 350 that controls other floating motions. Each servo circuit receives a motor 0N10FF command, a motor speed control command (outputted from the CPU as 6-bit data), and a motor rotation direction signal from the CPU 300.
It is designed to operate according to the commands of the PU. The servo circuit uses pulses from encoder E attached to the motor for speed control.

Pulse information is supplied to the CPU 300.

CPU 300 mainly controls the position of the document based on this pulse information. This pulse is also used to detect abnormalities in the motor.

The CPU 300 has an analog port (for example, NEC,
μPD7810, etc.), variable resistors VRI and VR2 are attached to the analog ports ANI and AN2, and the resistance values are supplied to the CPU 300 with a resolution of 256. This information is used for adjusting the stop position of the document.

Because there is some variation between machines, for example, with a certain machine,
Assuming that the number of stop pulses to reach the document standard after the document passes through the registration sensor SN2 (70) is 640 pulses, the value of VRI may be changed to reach this number of pulses.

On the software, for example, 600 pulses is a fixed value of 600+.
(VRI analog value) allows adjustment.

FIG. 3(b) is a block diagram of the control circuit of the main body of the copying machine, in which 400 is the CPU, 410 is the main body control means, and 420 is the control circuit of the main body of the copying machine.
430 is a counter, 440 is a comparator, and 450 is a key manual means.

460 is an exposure means, 470 is a drive means, 480 is a fixing means, 490 is a display means, 500 is various sensor means, 5
10 is a changeover switch.

The CPU 400 of the main body of the copying machine is equipped with an ADF control means 420, and performs control by performing serial communication with the ADF. Further, the CPU 400 is provided with a main body control means 410, and a copy operation processing signal is supplied from an ADF control means 420, and a signal indicating the number of originals to be copied from the ADF is input to a counter 430 and counted. The data of this counter 430 is input to a comparator 440, which also compares r! Data on the set number of original sheets inputted by key manual means 450, which is a set number of original sheet input means, is input to 440. The results of comparing these data are sent to the comparator 440.
The ADF control means 420 receives the input from the main body control means 410 and outputs a document feed/discharge signal as described above, and at the same time outputs a copy processing signal to the main body control means 410. This main body control means 410
controls the image forming conditions based on signals from various sensor means 500 for detecting the copying state, and exposes the exposure means 460;
It controls the driving means 470, the fixing means 4801, the display means 490, etc. The key manual means 450 is a conventional key manual means for inputting the number of copies and a key manual means for setting the number of original sheets, and these are switched by a switch 510.

When copying CF paper, first open the cover 240, separate the endless belt 250 of the conveyance unit from the platen, and pull out the CF paper from the CF paper feed port 230 as shown in FIG. , the first page is set on the platen, and usually the fold line of the CF paper is set so that it matches the document standard.

In this case, the second and subsequent pages of CF paper are set on the document setting table 60 through the CF paper feed port 230, or placed elsewhere.

After the above has been done, the cover 240 is returned to its original position, and the CF paper is sandwiched between the endless belt 250 and the platen.
When the print switch of the copying machine is turned on, the first page of CF paper is first exposed and copied, and the second and subsequent pages are sequentially fielded.

Also, if the printing position on the CF paper is incorrectly set when printing on the CF paper, as shown in Figure 4(b), the relationship between the fold line of the CF paper and the printing position may be misaligned. However, if you set the CF paper on the platen so that the delimiter of the printing position is aligned with the document reference, the copied paper will be copied with the printing position normal.

As mentioned above, CF paper is fed in sequence.

After the last page is copied and ejected, the series of operations ends.

The above operation will be explained below with reference to a flowchart.

FIG. 5 is a flowchart illustrating the operation when using CF paper in the embodiment of the present invention.

FIG. 5(a) shows a CFF mode check routine that checks whether to enter the CF mode.
When N7 (220) is turned on (Sl: when CF paper is loaded from the CF paper feed port 230), the ADF is not used for normal originals (S2), and the original setting table 6
(S3) CF when the normal original is not set to 0 (S3)
Make it go into F operation. This indicates that the original document usually has a higher priority. If the above conditions are met, C
When the F original is inserted, the ADF sends a document presence message to the copying machine (S4). The document presence information from the ADF on the copier side indicates that a document has been set in the ADF, so when the print switch on the copier is pressed, a paper feed command is sent to the ADF to feed the document. (S5). In the case of a normal document, the ADF starts the paper feeding operation based on this signal, but during the CF operation, the size of the CF paper is transmitted to the copying machine in response to a paper feeding command from the copying machine (S6). This love 1
The information is used for the copying machine's automatic paper selection and automatic scaling information.

As mentioned above, during CF operation, the ADF side does not appear to operate even though a paper feed command is received from the copying machine.

Such an advantage in control is that there is no need to know the difference between a normal document and a CF document for control on the copying machine side, and this is to simplify control. Needless to say, it is also possible to send the CF original information to the copying machine and control it as a CF original.

Further, in response to the paper feed command, the ADF side sets a CFF mode flag (S7). This flag checks whether the ADF is in CFF mode.

Next, after the copying machine finishes exposure, it sends a command to eject the copied original to the ADF (S8). Based on this command, the ADF side performs the CF operation CFFJCB - (CFF
operation counter) is set to 1 (S9).

The subsequent series of operations are shown in the flowcharts in FIGS. 5(c) to 5(j).

In addition, in the OFF pulse check routine shown in FIG. 5(b), it is checked whether the CFF mode flag is set (SIO) or not.
Check whether F hole sensor SN6 (210) is ON (Sll), whether CFFEGF (edge check flag for holes in CF paper) is O (S12), and whether C
Detects the sprocket holes of F paper, counts the number of holes, and clears the timer CFFJMT for jam checking (CFFCNT) of CF paper (S
13). Note that when SN6 (210) is not turned on, CFFEGF is set to 0 (S14).

This method is performed at the edge of the hole. In other words, this process is performed from when the CF paper has no holes to when a hole is detected.

Next, from FIG. 5(C) to (j), the above FIG. 5(a)
Steps from step S9 onward will be explained.

When a paper discharge command is received as described above, CFFJBC is set to 1, so a multi-jump is performed according to the number of CFFJBC in the CFJOB routine of FIG. 5(C), and CFFJBC is set to 1.
If FFJBC is 1, the routine jumps to the CFJBI routine shown in FIG. 5(d). In the old CFJ routine, first, the speed commands for the transport unit motor M2 and the reversing/discharging unit motor M3 are set to a high speed state, and then the speed commands for the motor M2. M
Turn on 3.

At the same time, CFF0NT, which counts holes, is cleared and CFFJBC is set to 2.

When CFFJBC becomes 2, CFJB2 in FIG. 5(e) is executed by the multi-jump of CFJOB in FIG. 5(C).

In CFJ132, every time this routine is entered, CFFJM
Increment T. This counter is cleared every time CF paper is detected in the OFF pulse check routine, and operates as a jam detection when the count is longer than the hole interval time for normal conveyance (5th
CF J B 3 (A) part in figure (f)).

When the number of holes reaches a predetermined number (for example, 18), reduce the speed of motors M2 and M3 to low speed and perform CFFJB.
Set C to 3. On the other hand, when there is no more CF paper in the CF paper feed port 230 (that is, the last page) before the number of holes reaches the predetermined number, M3TPC (a counter that counts encoder pulses of the M3 motor) is activated. Clear and motor M2. Set the speed of M3 to low speed and set CFFJBC to 5. That is, CFF0NT is set to 3 when it is not the last page, but is set to 5 when it is the last page.

Lowering the motor speed is one way to increase the precision with which CF paper is stopped.

In the CFJB3 routine in Figure 5(f), CFJCI is written as
As in routine 32, CF F J M T' is incremented, and when CF F CN T reaches a predetermined number (for example, in the case of CF paper with a length of 22.11 inches), the brakes are applied to the M2 and M3 motors, and the motor is rapidly Stop the motor. After this processing, CFJBC is set to 4. Also, before CFFCNT reaches a predetermined number, C
Check FFJMT to see if the CF paper is jammed. In this embodiment, normally, the timing of CFF0NT is counted up every 20 to 30 m5ec (every 172 inches), and the CFFJMT is counted up every 2 to 3 m5ec. Therefore, under normal conditions, CFFJ
MT is cleared when 10 to 15 pulses are counted, and does not reach 50 pulses or more. If you count backwards,
The time interval for detecting holes in CF paper is 100 to 150 m5
When ec or more cannot be detected, jam detection is activated and motor M2. Set M3 to 0FFL and JAM flag. This JAM flag is used for various jam processing.

In the CFJB4 routine shown in FIG. 5(g), the CF paper is stopped and the motor M2. M3 ON10 F F command O
At the same time, set the FF state and CFFJBC to 0 to set it to the initial state. On the other hand, in the case of final paper processing, CFJB2
When the last sheet is detected in the routine, CFFJBC is set to 5, so the routine moves to the CFFJB5 routine shown in FIG. 5(h). In the CFFJB 5 routine, the stop control of the CF paper is performed from hole detection through pulse control using encoder pulses of the motor, and after moving a predetermined distance, the motors M2 and M3 are rapidly braked and stopped. or,
CFFJBC is set to 6, and a message indicating that there is no original is sent to the copying machine to notify that it is the final original.

In the CFFJB6 routine of FIG. 5(i), the motor M2. Operate M3 at high speed to eject the CF paper. Also, set 7 to CFFJBC and set the timer CF to eject the last CF paper.
Clear EDTM.

In the CFFJB full routine in Figure 5(j), timer C
After FEDTM time-up, M2. ○ M3 motor
FFL, , CFFJBC are set to 0 to set them to the initial state, and the series of CF modes is ended.

As for the overall flow, while CF paper is being copied continuously, CFFJBO to CFFJB4 are repeated, and when the final paper is copied, CFFJBO, CFFJBI, CFFJB2°CFF mode, CFF mode, and CFF mode are processed.

Next, the case of copying a necessary portion of a CF sheet will be explained.

For example, from page 11 of a 200-page CF paper,
When copying CF paper up to the 0th page, the crease of the 11th page (11 pages 11 and 1
1st loaf on page 2) Cera 1 to match the manuscript standards
~do. CF sheets with pages 10 and earlier are placed outside via the paper ejection section of the ADF (see FIG. 1). Next, the user inputs the number of pages to be copied using the key input means 450 on the copying machine side (inputting 40 in the example). and.

By pressing the print switch of the copying machine, the copying machine starts a series of copying operations, and when the copying of one 40 pages is completed, the copying operation is finished and the ADF also finishes its operation.

The above operation will be explained below with reference to the flowchart of FIG. 5(k).

In the copy routine shown in FIG. 5(k), when the CF paper is placed on the platen, the CF paper detection sensor SN is activated on the ADF side.
7 informs the copying machine that the ADF operates in CFF mode. The copy machine side is only in CFF mode (S
L/1) The comparator 440 checks whether or not the document number counter and the document copy counter are -fi (S I 5).

If they do not match, a document feed command is sent to the ADF (316). On the ADF side, in the case of individual 〃X drafts ((Si2
) is No), the R document is fed from the document setting table 60 with this paper feed command (S16). When in the CFF mode, the ADF shown in Figure 5(a) does not feed paper.6 When the copying machine processing (81, 7) is finished, it ejects the copied original in order to replace the original. AD to paper
A document discharge command is transmitted to the F side (S18). AI)
The F side is based on the ejection command from the toy copying machine.
Perform the series of operations shown in (j) to move the CF paper by one page. The copying machine increases the document copy counter by one each time it issues a paper ejection command to the ADF (31
9). This series of operations is repeated until the original set number counter and the original copy counter match. When the original set number counter and the original copy counter match ((S15) is YES), the copying operation ends and A
DF also ends its operation.

As shown in Fig. 6, this system can not only copy the middle part a1 of the CF paper (for example, it can also copy the part a2 from the first page to the third page).
Or, without copying part a3 that follows part a2, part a
You can also copy 4. In addition, in the above embodiment, 1
Although the two key manual means 450 are shared and the switch 510 is used for switching, separate key manual means may be used. In addition, the ADF in a single system can also handle double-sided originals, so if the user accidentally wants to copy CF paper on both sides, the normal option is to select single-sided original → double-sided copy, but double-sided original → double-sided copy. Care must be taken to ensure that double-sided copies can be made even when the mode is set. In that case,
The check on the flowchart indicating that there is a paper discharge signal may be checked for both the document reversal command and the reverse paper discharge command.

[Effects of the Invention] As described above, according to the present invention, it is possible to specify a necessary portion of a series of CF sheets and copy only the necessary portions without cutting off a part of a series of CF sheets.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing the overall configuration of a copying machine to which a copying system according to the present invention is applied, and FIG. 2 is an ADF in FIG.
3(a) and 3(b) are block diagrams of the control circuit of the ADF section and the copying machine main body, FIG. 4 is an explanatory diagram of copying using a computer paper document, and FIG. 5 is an embodiment of the present invention. FIG. 6 is a copying explanatory diagram showing a portion of copying on CF paper. 2...ADF, 400...CPU, 4
10...Main body control means, 420...AD
F control means, 430... Counter, 440...
...Comparator. Figure 3 (b) Figure 4 (a) (b) Death/futotero position 1 Figure 5 (e) Figure 5 (f) Figure 5 (Q) (h) 5th cause H)
(7) Figure 5 (k)

Claims (1)

[Claims] In a copying system having an automatic document feeder capable of sending a series of computer paper documents, a set document number input means for inputting the number of documents to be copied, a document count means for counting the number of copied documents; a comparison means for comparing data output from the set number of sheets input means and the document count means; a main body control means for controlling a copying operation; and a document feed/discharge command to the automatic document feeder based on the data from the comparison means. and automatic document feeder control means for outputting a copy operation processing signal to the main body control means.