JPS6023236A - Paper transport control device - Google Patents

Abstract

PURPOSE:To stabilize the transportation of a sheet by stopping the drive of a transport roller to form a suitable space between sheets when the space becomes too small. CONSTITUTION:A paper transport device includes a timing rollr 21 which is stopped in time of contacting with the tip of a sheet transported by transport rollrs 28, 28' and driven to rotate in response to a signal output in relation to the operation of a machine. Sheet detecting means 29 for detecting a sheet is disposed between the transport rollrs and the timing roller. The device further includes timer means adapted to start on detecting when the trailing edge of a sheet passes a sheet detecting means portion with sheet detecting means 29, and drive control means for stopping the drive of the above transport rollrs when the sheet detecting means 29 detects the tip of the sheet within a time set by the timer means.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a paper conveyance control device, and more particularly, the present invention relates to a paper conveyance control device.
It stops at the timing when the conveyance roller and the leading edge of the paper conveyed by the conveyance roller come into contact with each other.
The present invention relates to a paper conveyance control device in a paper conveyance device that includes a timing roller that is rotationally driven in accordance with a signal output in conjunction with the operation of a mechanical device.

BACKGROUND OF THE INVENTION In a mechanical device such as a conventional copying machine, which needs to transport paper in synchronization with the mechanical action of a single machine, a paper transport device including a timing roller as described above is used.

In this type of paper conveyance device, in order to improve the throughput per unit time of the mechanical device, it is required to increase the paper conveyance speed and shorten the interval between paper conveyances during continuous operation. On the other hand, in the paper feed device that feeds paper from the storage section to the conveyance device, due to slippage between the paper feed roller and the paper, and handling operations by the handling mechanism,
There is some fluctuation in the timing of paper feeding due to mechanical operation, and there is a certain limit to the improvement in mechanical performance.

For this reason, when the timing roller is stopped after the trailing edge of the paper passes through the timing roller section, the timing roller is stopped before the leading edge of the next paper is reached. Since there is a slight margin for the trailing edge of the paper to pass through, if the conveyance interval of JllM becomes smaller due to the above-mentioned fluctuations, the timing roller will stop when the leading edge of the paper reaches the timing roller. 6. The paper is stopped with the timing roller slightly wedged in it, and the paper is conveyed when the timing roller is driven again.
There is a disadvantage that the synchronization with the operation of the mechanical equipment is incomplete.

These inconveniences are an impediment to the realization of demands for faster paper conveyance and shorter assembly intervals, and are also an impediment to improving the paper processing capacity of X-117 devices such as operation boxes. was.

Purpose The present invention has been made in view of the above points, and when the paper interval becomes too small, the drive of the conveyance roller that feeds the paper to the timing roller is stopped and the distance is set to 'u, 4' for an appropriate period.
This stabilizes paper conveyance, and also improves
It is an object of the present invention to provide a sheet conveyance control device that can increase the speed of 1st general conveyance and double action of O, paper side 1; B, .

(h, Kinoshita margin) Example Practical examples of the present invention will be explained below, step by step.

[Copy structure]

The 11th line 1 is the control device of the present invention (!ff-u4r+fi]Iso1, which simply shows the structure of the 18F of the copying machine, and the 41st The structure and operation will be explained.

Approximately at the center of the main body of the rN (loo), a photoreceptor drum (1) is supported by a qJ bucket that rotates counterclockwise during one rotation, and around it are an eraser lamp (2) and a belt. - Charger (3), image edge and 1-mark m1 eraser (4), small image mount (6).

A transfer charger (7) for 2 minutes, a charger (8), a cleaning device (9), etc. are arranged in an 11" primary arrangement.

The photosensitive drum (1) is provided with a photosensitive ion layer as shown in Table n1.
1, the uniform band η is obtained, and the travel optical system (10)
The image sensor receives light from the image plane through the slit portion (5), and a static image is formed on its surface. The image edge and interspace eraser (4) has a number of frame source diodes (LEDs) arranged in a concave square pattern, and is exposed to light on a low-forming adhesive.
This is to remove unnecessary charges on the drum (1) and 11, and details of its configuration and control will be described later.

The optical system (10) is installed below the original glass (16) so that one aperture of the original can be scanned, and includes a light source (17), movable mirrors (11), (12), (13), and a lens. (14) and a mirror (15). M
i,+The light source (17) and movable mirror (11) are (■/■l) (however, ■ The EJ moving mirror 12), (1
3) are driven to move integrally to the left at a speed of (V/2nl).

In addition, when changing the copying magnification, the lens (14) moves on the original needle and the mirror (15) moves and swings to correct the optical path. Shishi IK, J+7/i is known in principle to the type, and in the following Yue 1 Ming, the step motor (M4) is used according to the magnification data described below.
It is only shown that the positions of the lens (14) and mirror (15) are controlled in conjunction with each other, and a detailed explanation of the movement of the lens (14) and the mirror (15) will be omitted. In addition, a scanning optical system (10)
Regarding the control over the speed (V/In) of fl
! , JiH mountain, DC motor (M
3) It is only shown that the control to change the speed is performed, and the explanation of the specific control method etc. is omitted.
116.

Copy paper is fed using an automatic paper feeding system (too) that has two cassette loading sections (upper and lower) located on the left side of the Yusha H (too) main body in the figure.
20) or a manual feed powder paper 4% (3
0) is fed into the infarction by the timing roller (2
After being temporarily stopped by the photoreceptor drum (1), the toner image is transferred to the transfer section in synchronization with the image formed on the photoreceptor drum (1). ) is removed from the surface of the photoreceptor tram (1) for a minute, and the conveyor belt (22) is fixed.
3), the image is fixed to the tray (2=1)
is discharged. At this time, the key counter (KC) operates at the timing of feeding the slow-copying paper, and the talk counter ('i' c ) operates at the timing of ejection, and the count value of the number of first-time operations is ``1''1. ″Addition.

After the transfer, the photoreceptor drum (1) is cleaned by a cleaning device (9).
), the toner and particles remaining on the surface are removed by an eraser (2), etc., in preparation for the next selvage process.

Automatic paper feed, horizontal (20) and manual paper feed (30),
Either one is used selectively. The switch is made so that when it is closed, it opens the manual feed insertion port (32), and when it is opened, it opens the insertion port (32) and serves as a guide for the manual feed insertion port (32). The opening/closing of the table (31) is detected by the sensor (36), and when the table (31) is open/closed, the paper insertion sensor (34) detects one of the sheets of paper.
When a city resident is detected, the manual paper feeding copy mode is activated, and automatic paper feeding is activated by closing the manual feeding table (31) or by using the numeric keypad signal to set the automatic paper feeding selection button or copy sheet focus. The camera is controlled to be in photo mode. For more information on this synchronization please refer to them.

11 for automatic pay? In this case, the print key (PSW) (see No. 31
(By the operation in (), the image forming system including the photoreceptor drum (1) starts, and the IJ during preliminary driving for the photoreceptor drum (1), 1. When the processing is completed, the paper feed roller (25) or (26) is driven 1, and the scanning optical system (10) is activated by the scan start signal outputted as the copying hole moves yy.
- driving is started, and the photo paper is fed in synchronization with the image forming operation. The copy set has 2 or 3 sheets or the paper feed roller (25)
.

(26) is pushed out by the rotation of
By (27) + (27') only the best one or 1
Sent to general public.

The processing of the camellia (27), (2γ) is done using the upper roller (27a
), (2'7'a) are used in the 4Ji feeding direction, the lower roller (
27b), (271)) is 1 (in the pushback direction,
They are each driven to rotate as shown in IY', and the second and subsequent phase parts that are pushed out together with the second most phase part by the cotton glue roller are pushed back by the lower rollers (271)) + (27'l)). Then, only the topmost sheet or its fg y+7 is opened in association with the middle growler (21) of the next stage.

On the other hand, in the case of manual or manual paper feeding, when the copy glue is inserted through the manual feed slot (32) and the sensor (371) detects this, the manual paper feed roller (33) rotates and copies the paper. A sheet of paper is fed into the machine, and the photosensitive drum (1) starts at the same time as the paper or a little later when the print key is operated as described above and at li+1fp. Then, the hand-fed copy 1st paper is temporarily stopped at the 4th detection switch (35) for the 1st paper and is waiting (it is shallow, and the preliminary period including the rotation of the JGK/light drum (1) i: Evening!'l When the process is completed, the gap/feed roller (33) rotates 414 times, thereby feeding the material into the machine.

In addition, Ne (J photo t-1 (100), as described later,
The manual feed table (31) is removable from the main body of the camera, and instead of the manual feed table (31), a general-purpose paper feeder with a paper feed morph, paper feed roller, etc.
It can be equipped with a unit, and by doing so, it can have the same functionality as one with 3 stages of self-beating and 1 introduction section.

In addition, size detection switches (SWII) to (5W14) and (S to '21) to (SW24) are provided in each cassette mounting part of the self-feeding horse's towing core (20), and the size detection switches (SWII) to (5W14) and (S to '21) to (SW24) are installed to detect the size of the cassette to be mounted. Is the switch made by the west P row of protrusions or magnets (not shown) provided? :+V i= is changed to determine the size of the loaded copy paper using a 4-bit binary code. As described above, many kams are already known that use the cassette containing the copy paper to determine the size of the copy paper, and a detailed explanation thereof will be omitted.

The photocopying machine (100) is further equipped with an automatic feed device (hereinafter referred to as ADF) (200), which can be moved relative to each other to perform a dropping operation. ADF (2
oo) or copying machine 1 (100) The switch (SWI
), the A D F (200) and copy P (1,oo) controls are associated with each other, and the copier (100) operation mode is switched to the A I) F mode. A l) F mode is ADF (
When the first-heard start key (S SW) provided on the document tray (200) is operated, the intermediate copying machine (100) remains in standby mode and the A 1.3 F (200) starts ω1 production, and the document tray ( 203) Transfer the original marked 'M@' to the copy machine (10
0) original jlfg N on the glass [Feed along the fence, stop at the specified position, and A D F (200)
A start signal is output to 9 (100), and the above-mentioned copying operation starts), and when the last scan of the original is transferred, the ADF (1) is transferred from the copier (100) 200), an operation signal is output to A DF
(200) discharges the original onto a paper discharge tray (204). At this time, if the next document is on the document tray (203), the next document is transported to a predetermined position along with the paper ejection.

A ]) F (200) is roughly the document feed unit (A unit) that stores the original drafts and sends them out one sheet at a time.
1), transports the sent original by sandwiching it between the original and the top surface of the device glass, stops it at a predetermined position on the glass surface, and transfers the original on the glass surface to the paper output tray (204).
The DF unit (202) can also be used alone as a manual document feeding device. In addition, the DF unit (202) can be opened and closed with respect to the copy aooo) main body so as to expose the document placement glass when attached to the top m1 of the Glue Copy + (100), and is similar to a normal document cover. You can also use it in various ways.

A1)F (200) further includes a hanging part and a sensor as shown in FIG. Figure 2 is A, D F
(200) is a flat surface, and the operation part (250) is 1
) are provided on the top surface of the F unit (202), including a mode setting key (25]), a mode display lamp (252), and a mode display lamp (252).
53), (254).

Mode display lamp (252), (253), (25
4) When the mode setting key (251) is operated, the number 2 is lit one after another, and accordingly, the mode is either control mode or "eyebrush 1 paper selection".

It can be switched to "Home force multiplier selection" and "Manual" respectively.

"Automatic paper selection" mode fixes the copy magnification, determines the optimal copy paper size from the size of the inserted original and its magnification, automatically selects the paper feed section, and This mode feeds prayer paper from the paper feed section.

In the "Auto Wj 1 magnification selection" mode, the size of the copying paper to be used is determined, and the corresponding copying magnification is calculated from the size of the inserted original and the size of the copying paper. This is a mode in which a copying operation is performed by automatically setting the copying magnification by setting m+y.

There is a document length sensor (SE) located near the insertion opening of the DF unit (202) that is positioned so that it can detect the document, regardless of the size of the document to be inserted or the number of times the document is inserted.
I) and a high-contrast sensor (Sn2) that takes the two states of detection and non-detection based on the convergence of the original (Sn2) is installed, and the size of the original, ll': l-, is provided based on the signals from these two sensors.
1. Identify and differentiate.

Method 1 for identifying the paper size has been proposed from time to time, but in this embodiment, the original (:5) is expressed as
Detected by the height sensor (SEL), h1 at the time of detection
At the same time, it is determined whether the document 11F5 sensor (Sn2) has detected one document, and the size and rotation of the document is determined from both signals. In this method, if a document is of a standard paper size, most sizes can be identified using only the length signal, but if the document is of a standard paper size, most sizes can be identified by the length signal. In terms of size, depending on the length and width of the paper, even if the paper size is the same, the size may be different, so a vaginal paper sensor (sli2) is provided to determine this.

In the copy mode structure explained above, copying machine 1 (100)
The system has an operation and control structure as described below, and performs control according to the status of each building sensor and input switch.

[Operation and control structure]

FIG. 3 shows the arrangement of the operation keys on the copy mode operation panel section. The operation panel (50) has a print key (psw) for starting the copying operation, and a numerical display 'J# (52) that can display 4-digit numerical values.
Numeric keys (61) to (70) corresponding to the numerical values of ``1'', ``2'', ``9'' and ``0'', an interrupt key (SO) that specifies interrupt copying, and a clear fist stop key (81).
), a paper selection key (82) for specifying copy sheets loaded in multiple stages by size, up and town keys (83), (84) for specifying a step-by-step change in the number of copy images. and a group of keys (85) to (g3)% related to the subject magnification setting device. Each key corresponds to a normally open 144It switch in circuit terms, and in the circuit house 1 described later, the switch is indicated by the number attached to each key.

First magnification setting key sum: (85), (86), (
87), (ss) is arranged for the purpose of arbitrarily setting the magnification, and when the key (89) for switching off the first magnification setting mode is operated, the QjJ 匈: f>1 control mode is activated. When any key is operated in the 7-voice mode when switched to the first magnification setting mode, the 4 values input using the numeric keypad and displayed on the display gff:i: (52) will be the same as the 4 values input by the numeric keypad. The image magnification is recorded in the memory corresponding to the key.

2nd (]:'i rate setting main setting key 1!'f0), (9
1), (92), and (93) have predetermined photographic magnifications stored in their corresponding memories, and are set several times, such as ``shi'1'' in the first key group. The name is set so that the copying operation can be executed based on the preset data without having to perform the preprocessing. Therefore, the preset visual acuity' and hrS rate are selected from magnifications that are considered to be frequently used, for example, at the time of shipment from the factory. This will be discussed later.

In this way, the 1st key 114 allows the IT user to set the required magnification to A4 if available →
T35. B4→A4. A3-A4. Or A4 → A3
Function 1 has been given a different role so that the magnification corresponding to etc. is preset. However, since the preset value for the second key group is a general or estimated 4J magnification, the actual magnification may vary due to cutting or design errors. The object may differ slightly from its copy magnification. For example, even if you select the same size (×1), the actual size is (xl, o04) or (Xo
, 996), it could be 7 go. In such a case, by operating the second magnification setting mode switching key (94) shown in the first cover, the pi1
2. Switch the control mode to the second magnification setting mode,
It is possible to set arbitrary numerical values in the memory corresponding to each key (90) to (93) by the same operation as in the first magnification setting mode to obtain a desired copy (at ratio).

Switches and copiers (10
The various sensors provided in the AD F' (200) and the AD F' (200) are associated with the controller (300) including a microcomputer system, as shown in FIGS. 4 to 10.

In FIG. 4, a microprocessor (hereinafter simply CI) in the control system fJI'IA Hlt (300) is denoted as U. )
The relationship between (301) to (305) is shown. (301) is a host (CI) U that plays a central role in control, and as shown in the input/output relationships in Figures 6-1 to 9, its serial out terminal C.P.
Serial in terminals (S) of U (302) to (305)
in) and the serial in terminal (Sin) of the host CPU (301) are connected to the slave CPUs (302) to (305).
The serial out terminal (5out) of ) and the interrupt request terminal (lNrreq) are the interrupt terminal (Il”ff) of each slave CI) and the clock output terminal (CLKo
ut) is the clock input terminal (CL
Kin). Host CPU
The terminal (xrwreq) of (301) has a predetermined circumference IJ,
1 becomes 'H', and its serial out terminal (So'u
t) From then on, each slave CI) U
A data block containing transfer data for (302) to (305) is sent to the 100th path line by a clock signal, and the data blocks containing transfer data for each slave CPU (302) to (305) are
05) Then God 1 was assigned to one of them' I-1
The data is collected from the serial in terminal (Sin) at the timing of ", and the data is output from the serial out terminal by the clock signal.The host CPU (30
1) When the terminal (IN'l-, req) is L#, each slave CPU (302) to (305)
takes in the read data, performs calculations, stores small data in registers, etc. as necessary, and sends it to the host CPU.
It is configured to wait for the terminal (INTreq) of (301>) to become 'I-1'.

FIG. 5 shows the relationship between the CPU (301) and the magnification mechanism, etc., in terms of human output.

A host CPU (301) is provided in the main body of the copying machine (100), and is mainly connected to a group of keys on the operation panel (5o), a display device (52), etc. via a decoder (351), and is used to judge the manual power of the keys. and controls the display output of numerical values, light emitting diodes, etc. In addition, the key counter (KC
) is determined by the input of the detection switch (SWI). (352) is a RAM backed up by a battery (353), which stores branch data that should be retained even after the power is turned off, such as setting magnification data, as will be described later.

The 61st Na shows the master CPU (302) and its input/output 141. The master CPU (302) is mainly responsible for controlling the operation of the four desks, (100), and i
, and also controls the lighting of the light emitting diodes of the krz 191 and the end eraser (4) via the decoder (354).

The 71st number 1 shows the ADF controller 1 CPU (303) and its input/output first party. ADF i1j control CPU
(303) is divided into the AI)F (200) and connects to the mode falsification key (251), start key (SSW), document sensor (SEI), and (SE2) O7. Then, the input information is sent to the host c p Ll (301), and the display lamps (252), (253
), (254).

Figure 8 shows the CPU that maintains control of the scanning optical system (10).
(304) and its input/output relationship. CI) U (3
04) receives the magnification data via the post I-CI' IJ (301), and accordingly, the
) C motor (1% 23) Yuri ζ good system i...: 1 time i
N6 (356) and the drive control of the step motor (Mll) for controlling the position of the lens and mirror once feg (357)
The output of the exposure start switch (5VV50) and timing switch (SW51), which are activated as the scanning system moves, is determined.

FIG. 9 shows a CPU (305) provided in a general-purpose paper feeding unit (4 (10)) and its input/output relationship, which will be described later.
The size detection switch (
SW31 ) to (SW34) and empty sensor (S
After receiving the ID issue of E6), the host CPU
(301) and outputs a drive control ID number to the dedicated paper feed motor (401).

No. 1 shows a specific example of a temperature detection circuit connected to the bases of transistors (Trl) to (Tr5) in the switch matrix of Ns61y, and is connected to the upper roller (23a) of the fixing device (23). The temperature sensing element (I'H) placed close to the temperature sensor changes its aether resistance value as the temperature changes, and it
) and the resistor (R1) is the differential amplifier (A
1) to (A5). The other input terminals of the differential amplifiers (A1) to (A5) are connected with voltage dividing resistors (rl) and (r2), (rs) and (r4), respectively.
, (rs) and (r6).

A predetermined partial pressure determined by (r7) and (rs) and (r9) and (rlo) is input, and the temperature sensing element (TH
) differential amplifiers (A1) to (A5)
outputs at a predetermined temperature level, and the transistor (Tr 1
) ~ ~ (-1'r5) is set to be turned on. A specific example of control for each level will be described later.

[Control details]

FIG. 11 is a flowchart that generally shows the control contents and processing procedures in the host Cp U (301), and details of individual controls are shown in FIGS. 12 to 19. Further, FIG. 20 is a flowchart that generally shows the control contents and processing steps in the master CPU (302), and details of individual controls are shown in FIGS. 21 to 28.

First, in Figure 11, step ($1), (##2
), the second magnification setting key group (90) is performed mainly at the time of machine assembly or at the time of factory shipment of the machine.
Memory (Ql) provided corresponding to ~(93) ~(Q
The magnification presetting process for 4) is executed. Details of this process are shown in FIG. The initial switch (SW60) in step (#1) is a switch that is set in a position that cannot be operated normally inside the copying machine, such that it can only be released during assembly at the factory or by service personnel. Yes, the process shown in FIG. 12 is executed only when this switch is fully made.

In steps ('#3) and (#4), when the copying machine is not in the copying operation, processing for setting the magnification on each selection key (85) to (88) or (9o) to (93) is executed. be done. The details of this process are in the 1319th and 14th [
Shown in ¥'l.

In step (tl-5), the lens position and morph 1
ν, (data for controlling the moving speed is Cl for controlling the optical system)
Executes processing to transfer to U (:304). This data transfer 11VF1CP 'U (304) processes this by an interrupt. Details of step (#5) are shown in FIG. 15.

Step (#6) shows processing when switching between automatic paper feeding and manual paper feeding mode. Details of step (#6) are shown in FIG.

Step (##7) shows a process for displaying the position of the selected paper feed unit using the numerical display device (52) that displays the number of copies and copy magnification on the operation panel (50). Details of this step are shown in FIG.

Step (#8) shows the process when the "automatic magnification selection 1' selection mode" is selected in the sweeping section (250) of the ADF (200). Details of this step can be found in Part 1.
8 Shown in Figure 1.

In step (11-9), the number of copies, the initial magnification, etc., are changed when each of the - punch and print keys are not operated, or when a certain period of time has elapsed in (4 copy paper 1, end of one print Φ, etc.) 0J change & constant JJ+ shows the auto-reset process of automatically resetting the data of j to the "manufactured" version. Details of this step are shown in the 191st section.

Step (111O) is the host CPU (301)
This is a time determination step for ensuring that the processing time for one routine of the control steps executed in step (443) remains constant regardless of the immediate content number of the control step. Go back and repeat the above process.

The flowchart of ``y group upper'' Shime L is the memory (9]) corresponding to the key group (90) to (93) of 9 Sadagawa at the second magnification.
~(Q4) shows details of the initial toughness setting process for presetting predetermined numerical values.

Note that the memory (0,1) to (94) corresponding to the memo IJ and the first magnification setting key group (85) to (88)
Q5) to ((,)8) are the RAM of the 5th Uyl (
352) Set in the inner I fixed area.

Memo IJ (',) 1) to ((34,) are preset to (95) and (96) in Figures 1 and 5.
It is determined by the on/off state of the switch associated with the operation of the key indicated by
i'! During stand-up or at the factory shipping stage, the worker turns on and off the switches (95) and (96) according to the instructions determined in advance by the destination, etc., and turns on and off the initial switch (SVv6o) (No.
By closing the + reference focus), the memory (Ql) ~ ((
A predetermined number of 4 white blades) is preset to j7I). Processing of steps 0th 04) to (#107) is performed by the host) CPU
switch (95) stored in (3Q]),
This shows the process of setting the 4Hl fiber value y value for the on/off combination of (96) in each memory (Ql) to (Q4), and the switches (95) and (96) are turned on.

Table 1 shows specific examples of preset planting for off combinations.

Table 1 Reverse twist keys (90) to (93) or (85) to (88)
) Compatible with V513 when setting arbitrary values as the copy magnification for (Q, ] ) to (Q8).
The processing shown in FIGS. 1 to 15 is executed.

In FIG. 13(a), steps (++4(11),
In (4+o2), press the key (89) or (9/I) when switching to the fixed mode. l, (+, Z 1 for any key group in the second
When the key (89) is pressed to 11, it is in the first copy magnification setting mode, and the step (# 403) Set flag A to "1". key (94) is 18
When the card is created, the second bill is credited in step (#4o4).
．． Set flag 1'-- indicating RL constant mode.

When the key (89) or (94) is created 4≠, the 1000th place flag is set to 21" in steps (++4OS) to (month 08) for any birthmark/coupling, and the 1st place display is changed to '"o
〃 processing is executed. That is, the control of first hearing y6 1lj
When i is switched to magnification setting mode, pl (ll'
J display%'if<j (52) is 'b1)bO''(1
]000 digit) is displayed and enters a standby state to accept input from the ]000 digit.

In this state, if the numeric keypad or 11 is created, the step (
#410) When another key is pressed and the rlJ key (61) is pressed, proceed to step (#411) and press 1.
``1'' is displayed at the 000th place. In addition, here it is convenient from the gatekeeper with the numerical display device (52)" 21000th place, 1
I will explain the numerical values input in Table J (Ql) such as 00th place, 10th place, and 1st place, but the numerical value as a magnification is small rfi, <4
It is paid as a decimal number with 3 digits after p and 4 digits after the effective p character.

If the 1000th flag is ``1'' and the input value is ``0'' or i↓'7 between ``2'' and ``9'', step (
Step #413) displays 10'' at the 1000th place.Next, if the input is "O" or 11, go to step (11-412) and set the 1000th flag to "O" together with the case of "1". , set the 100th place flag to 1" and wait for the input to the 100th place digit. If the input is "2" to "9", after setting the 1000th place flag to O" in step (44415),
Proceed to step (#418) and make 100 manual plantings.
(Displayed in 3'/Nr.

9 when the 1000th flag is 1'', the above processing is IIi'+ of 0647 to 1414 as the copy magnification,
It is based on the nit principle that a value of 1tli is treated as a valid value, and therefore, the 1000th digit has a value of ``1'' or ``0''. By doing this, the key operation when inputting rOJ to the 1000th digit can be easily interrupted. Note that even if such process L) is carried out, there may be cases where the value falls outside the above range of effective copying magnification, depending on the value that is reduced below 100. . Regarding process 1 at this time, the first
3(1)) and the subroutine section of the 14th subroutine.

When a value is entered in the 1000th place digit, the 100th place flag becomes "1", and when the numeric keypad is operated in this state, it becomes 10.
A numerical value corresponding to v15 is input to the key made from 1 to the 0th place digit, and in step (#418) that value is displayed, and in step (#I419) the 100th place flag is set to '0' and the 10th place flag is Processing 1 to set the value to 1" is executed. Thereafter, the input of the 10th place and the 1st place are also performed by operating the numeric keypad.

'As] :3 l*! (bi)7 The low chart is input by the process of 131'&1(a),
This shows the process of storing the displayed numerical value in the memory corresponding to the reverse twist key to be created next.

In step (II430), it is determined whether the mode is the first magnification setting mode or the TI2 magnification setting mode. Since step (#430) is executed only when either flag A or flag 13 is "1",
Here, for example, only the determination of whether flag A is 10'' is executed, and if flag A is V1n, it is the first magnification setting mode, so the first selection key group (85) to (
Step (11444) of determining the production of 1 of 88)
Proceeding to the following, when flag A is not 11", 11j, or flag 13 is it I", it is the second magnification setting mode, so determine the operation of the second selection key group (90) to (93). Proceed to step (j#ll 31) and subsequent steps.

In the 131st IM Process P, the value is basically displayed in any magnification setting mode, and the value is written in the memory corresponding to the operated selection key.
However, as mentioned above, at this stage, an unreasonable number of allowed copy magnifications may be displayed. Therefore, each key's (
After determining the program, the → no routine shown in step (#+432) is executed to prevent a value outside the permissible 4f'l IE from being stored in the memory. The location 4414 of step (+1432) is shown in 1/I.

In Or 1411Q+, if the display is not '0'', in the step (month 60), it is determined whether the displayed value is smaller than 0.647, and if it is small, the step (, If462) 0.6/17
shall be. In addition, in step (tt, 163), it is determined whether the displayed numerical value is a dog based on [old 4], and if it is a dog, the display is set to 1414 in step (n464).

Therefore, to explain in the 131 yen 1 (I' with bl) = 1 luck, in the magnification setting mode, when the "fixed Be selection" is operated, the displayed value is outside the allowable range. If so, the display is set to the allowable limit value, and then the displayed value is stored in the memory corresponding to that key.When the process of storing the value in the memory is executed, the first magnification setting mode is changed. The flag A is set to "0", and the flag I3 is set to "0" in the case of the second conversion rate setting mode, and the process proceeds to step (#) 456).

Steps (month s6) to (#4ss) indicate the process β[1 when the clear stop key (see 81X figures 3 and 5) is operated. When the clear stop key (81) is pressed, step (n457), ('Il'458
), 'bbbl' is displayed on the display device (52), and flags A, B are set to 0''. That is, when the clear stop key (81) is pressed, the displayed numerical value is cleared and the magnification setting mode is canceled. Therefore, B' (ll
k'1' is 1 as the setting value for the number of copies.
“is.

Figure 15 ta+ and tb+ are the second selection key group (90) to (93) and the first selection key group 4 (85), respectively.
-(88) shows the process executed when operating.

Fangji] s 1m (a) Nioite, key (90),
When any one of (91), (92) and (93) is operated, a light emitting diode (90) provided corresponding to each key is activated.

The one corresponding to the operated key among (91a), (92a) and (93a) (see Fig. 3) is lit, and then the numerical value stored in the memory is used as magnification data and the optical System i1i'! Transfer to the regular CPU (304).

When one of the selection keys (85) to (88) is operated on the four-soil two plate, in this case, the corresponding light-emitting diode is lit as described above, and the magnification is set to an arbitrary value, so step (1t514).

(11518), (+1522), (41526)
The numerical values set in the corresponding memories (Q5) to ((8) are displayed on the display device (52). This display is performed only when each key is pressed, for example, and when the key is released. The display device (52) is set so that the number of copies set in other storage devices is called up and displayed.In the case of this first group of selection keys, the numbers corresponding to the operated keys are also set. The numerical values stored in the memory for the optical system are transferred as magnification data to the CPU ('304).
4) is a speed control circuit (35) based on the magnification data.
6) and a control signal is output to the step morph drive control circuit (357) to enable execution of the first-time operation at the set copying magnification.

The 16th do 1 corresponds to step 11 (i 6), and shows a processing hand 11W1 that sets and controls switching conditions for automatic and manual paper feeding modes.

The processing in steps (1#601) to (4t605) is performed when the manual feed insertion sensor (3
4) When the machine (see 1j-1. FIG. 6) pushes out the insertion of the copy paper, the paper feeding mode is switched to the manual feed mode, indicating that the counter for counting the number of copies manually fed is cleared. Therefore, according to this control, the manual feed table (31
) Regardless of the opening/closing signal (sen+, signal 36), the paper feeding mode is switched to the manual feeding mode when the copy paper is detected by the sensor (34). Even in this case, since the insertion sensor (34) will not be turned on unless the manual feed table (31) is open, no practical problem will occur.

Steps (Ir2O3) to (Ir2O3) are the scanning optical system (1o
) shows a process in which the manual feed counter is incremented at the timing of the end of running T (return). This manual feed counter may be set, for example, in a predetermined area of 1 (8h'1) (352), and the answer may be displayed on the display R (52).

Evening J, L of steps (11,609) to (+1613)
The process is to close the manual feed table (31) (when the sensor 36 is at zero).
1;
Press the key (8) to select the size of the
2) operation, numeric keypad (61) to (70) impersonation, and
Temporary If1 using double A or r; (200)
Among the modes, the so-called "auto mode" of [auto j14 (group-selection) j (] and "auto double fyffi 3% selection";
If either option is detected and the paper feed mode is set to self-fire 1
- Indicates switching to paper feed mode.

Closing the manual feed table (31) indicates that the user has finished manually feeding the paper, and the user can immediately select the paper size for the first time, set the number of copies using the numeric keys, and set the automatic mode. ! Intention to perform work by feeding paper, li,! In both cases, the automatic paper feed mode is automatically selected and the paper feed mode is automatically selected. It is convenient for use. Note that the manual feed table (82), the operation of the numeric keys (61,) to (70), and the automatic one-feeding process using the tracing scale of the ΔDF automatic mode are performed using the manual feed table ( 31) is executed in relation to opening and closing. Therefore,
- You can copy in automatic paper feed mode with the insert table (3]) open.

FIG. 17 corresponds to step (117) in FIG. 11, and the display 5jj jl'4:,' (52) is the display 7. &
There is no control shown for changing 4Ji to IJJ 4yb in accordance with Noah's mode. Step (Ir2O3).

(#702) and (41706), C rise 707), when it is determined that the copy magnification key is on (processing of figure M13) or the magnification key is on (processing of 15th I sentence 1), display vj position ( 52) No. 131 No. 1. As shown in Figure 15, numerical values related to the copy magnification are displayed.

Steps (##703) and 708) are performed when the paper feed mode is manual paper feed mode. (52) indicates that the number of times the manual copying operation has been executed is displayed. (The count of the number of times the υr copying operation has been executed is shown in Section 16-1.

Steps (Ir7O4), (#705) and (Ir2O
The processing of 3) to (view, 712) is performed to display the 1000th display B (, (3rd, 51st) of the display device (52) in the normal mode.
1 and 131) and l'; (: indicates that the position of the reversely twisted paper feed section is displayed using a 7-segment display as shown.

The optional paper feed shown in step (i1704) is to remove the manual feed table (31) from the main body and instead use a paper feeder that has a removable configuration on the main body so that it is not removed from the main body. unit) (/100)
744 paper can be automatically fed. Paper feed unit (4
00) has a paper feed roller (401) and a dedicated paper feed motor (
M5) (not shown) is built-in, and the copy paper is
Push up h:', the paper feed roller (40
1), and when it is fed out along with the concave shape of the paper feed roller (401), it is separated by the separating member (403) and only the first paper is fed by manual feed Ll (32).
will be sent onto the plane. Also, the paper feed unit (400
) is provided with a guide (404) for manual feeding, and it is also possible to manually feed copy paper from there. (400) is due to the fact that 13 sheets of paper are attached to the main body. JJ is also connected to the main body side, and as mentioned above, there is a control CPU (305
) is attached to the host CPU (301) and 19-1 (4).The paper feed unit (400
), the control mode is as follows:
”, when the insert table is open, the Sennin sensor (34
) may be controlled in the same way as in the case of detecting the insertion of paper for the first time, or the paper feeding unit (400) may be
It is also possible to perform special operation control by knowing this. In any case, when the paper feed unit (4oo) is selected as automatic paper feed, the manual feed counter does not function and the display device (52
) displays the number of discs set for the first time in mT+normal mode.

On the other hand, the discarded ear group selection key (82) shown on the conversion panel (5o) of the 31st section allows the operator to select the size of the ear group attached to each paper feed section and the corresponding light emitting The diodes (82a) to (82d) are used to display the fish as appropriate. Since the selection and display that gives priority to the size of the copy paper is generally known, IWI presentation and explanation of the specific control techniques thereof will be omitted. Paper source selection and display that prioritizes size has the disadvantage that it is difficult to identify the actually selected paper source.

Therefore, in the control of the 17th anti-1, the display (82a) to
(#7o9) to (#711)
As shown in the upper shell (1000) of the numerical display device (52)
1) Display using Pak 1. In this case, the control mode for the copier is ilh %4. mode, the last three digits of the numerical display ¥3 (52) are used to display the set number of copies (step #, 712). However, as shown above, the display device (52) is used for setting and displaying the credit rate.1-digit display power 1-IJJ"f+t
;, Deachi. Therefore, since the 7th sector of the j-th digit is empty, step (II7o9) is executed.
As shown in ~ (II711), the output has been devised so that - ``-'' (optional woven and kasuri), medium μ'' (upper cassette), and O-lower ``5'' (lower cassette) can be displayed separately. It is something. This display is similar to the above-mentioned A D F (200
) Use the betting mode of operation as well! I! do.

sr + 8 + vl: Hagu'', 11 Shino (Step 11
Corresponding to 8), 81)F(200) woJ'l”r',
7”: r self jl, i, + times 4'fi' choice,
It shows m11 all 11 in J mode.

Regarding the "White Melon 11x 41 H Cutting Selection" mode, please refer to the operation in ＼IJ F (200) in 1 younger brother 2 drawing＠
jJj, ni; r2 t+ノ, 4 However, what is the target? 2 and 7...
When this mode is selected by operating 5+), c
From I'LJ (303) * Strike CPU U (30
1) +c that information is transmitted, lko:te step (418
01) Once each is determined, the following steps (JI
802) to ((1808) are performed in 17 lines.

When it is determined in step (1f-802) that it is the start switch (S SW) technique of A D F (200),
River j 41f identified using the method described above? 1 and the size of the discarded paper are coded and stored in registers, and both data are stored as follows: is transferred to the optical system control!IlI river CPU (304), and the display light emitting diodes (85a) to (88a) related to magnification selection are
and (9oa) to (9:3a) are all turned off, and the copy operation is performed on the master 〇 p u (:302) 1
Issue instructions for the beginning. Therefore, "automatic magnification jr selection"
In the mode, memory (Ql) to (q8
) is the first hearing magnification set to 1! Regardless of J1 m
The copying operation is performed at a magnification calculated from the h'-size and the size of the progress sheet.

Therefore, in this control, step (II8o9).

(#810) 1) The F unit (202) has been lifted (SVνI off) or the
When it is determined that the i<rate selection mode has been canceled,
Ste Nbu (+1811.), (1j, 812) +
Here, the display (93a) corresponding to the multiplication key (93) is lit, and the CP for controlling the optical system is turned on.
Processing to transfer the data of the corresponding memory (Q4) to U (304) is performed in line 7'. By this, 49q
When the user decides not to continue copying in J mode, the user returns the magnification selection display and selects the same magnification as the standard magnification. In a sense,
The action of removing the key counter (to K) is also considered to be an expression of the IS (IS) intention not to continue the image capture, but in this case, the selection and display of the same size is done through the processing in the next step (tl9). will be held.

The size of the copying ax 11 loaded into the feeding unit (400) can be determined by, for example, changing the dip switch (S~!31)~(S'vν3・1) provided on the unit body to 111. It can be determined by cutting according to the size code (4 bits).

FIG. 19 corresponds to step 11-1 (tl9), for example, steps (#901.) to (II゛903).
As described in , there is a missing copy of Miaosaku key's dry work and Fuyang's work.

When no operation is performed on the copying machine after a certain period of time has elapsed, such as when the fuser group has completed its tl or gradation (wait state is released), the revised variable order number is
The process for auto-resetting to automatically reset the data to r- is shown below.

The auto-reset timer is set, for example, from 30 seconds to 1 minute or "J", and if the camera is left unattended, the % of total shots under the set conditions, 'j )
, assuming that there is no anger, steps (#, 907) to (4)
As shown in +910'), Nakasha Co., Ltd.
12x cram school - Same size, ゛Lighting conditions - Pile melon and paper feed lower row or size - A4 (paper pick-up mode 1' = - automatic) fl
g (, the process of setting the setting variable to the state I is executed.

Furthermore, in this control, step (-1t904)
Removal of key counter (KC) (SvvI)
O is off), and when it is pulled out, steps (++9o7) to (11) wait for the auto-reset timer to complete.
910) is executed immediately. This (j1 key counter (I((ri) is the qi that pulls out, i1 work, its servant Jl1 name, frame copying, or - indicates that the -81 + auto-reset %% is 1■ Even if you run it immediately, there is no tsuba supraintercondyle, and it is more efficient to wait until the auto-reset timer completes and reset each data to the s i + value. Depends on the mountain.

In addition, in this fu, jka (7 Il, + i here, the
Machine J (100) In contrast to the machine I, this shows a machine equipped with a conventionally known key counter (KC) to make the photographic work easier, or instead of a key counter (KC). In recent years, i7L/;, i, cards, etc.
It has been proposed or provided that the body was used in the 11th,
Also on the side 1 of the 19th fil, the prescribed reading prompt 1+
The withdrawal of the card is detected by ", and this causes the scream of steps (1#907) to (-11910')"
- You may also perform 2.

FIG. 20 is a flowchart summarizing the control internal temperature and its processing procedure in the master Cl)U (302). The master CPU (302) is like a double row.
Mainly copy a (100)! Il1 production? 111, and as detailed below, '11
4-'mini', 'IN'', l, par] group ÷
Each senza and switch in Saya Yu/Shasen (100) and 1
97 lines of continuous control.

Step (, #100) indicates input processing of switches and sensors at power-on IP-, and 7Rt I<
'Execute the process of accepting signals from the sensor (11).

Step (#110) detects the temperature of the roller (23a) of the fixing mode fR (23), and detects the temperature of the roller (23a) of the fixing mode fR (23).
100) is estimated, and step (t114.0) is estimated.
21 shows the process for obtaining data on the rotation (preparation to rotation) of the photoreceptor drum (1) before the copying operation, which is carried out in step 1.) The details are shown in FIG.

Step (44120) indicates sensor and switch input processing executed for each control routine in CP Ll (302).

Step (1t130n) is the power supply (main switch)
The release of the selection (If) O) in the connected state HH
Bi! ,.

The process for measuring the time is shown.

Step (J4140) is based on the data determined in step (#110) or step (#4130).
copy! Preparation of the photosensitive drum (1) at the beginning of the printing period 4
This shows the procedure for constraining/constraining the G drive, and the details are shown in 23-1.

Step (44150) is self j'l'l ll'i
1-3j heavy foot control (hereinafter referred to as A11) C and II medical description. ), the details of which are shown in p. 24 are 11i11 spec.

Step (1j1-60) is copying 1. ``This is a process for changing the smell of the paper feed roller depending on the size of the copy paste used when the operation starts. Details are shown in No. 251-1.

Step (1) 170 is for Pa I↓ when the saddle is first photographed.
This shows the process for changing the timing of automatic paper feeding depending on the size, and when printing thick paper on thick paper.
Photo 114p is a control that changes the jail timing, details 1 of which are in G3
261Wf(al, (1)).

The step (formerly 80) is a K for copying that is sent out continuously.
, 11 shows the control for regulating the interval in the timing crawler section of 11, and its details are shown in No. 271-1.

Step (41=190) is I) F' unit (
202) Yahara (1 yen: Kahar (not shown)) shows the control for removing the black spots that appear at the periphery of the first-time image when the first copy is executed with the Kahar (not shown) opened, and its 7E
ffl is shown in FIG.

Step (#200) collectively shows the other controls, and step (h+21.0) shows practically the same control as step (#10) in FIG.

In the 211th part 1, steps (4#1101) to (
#1104) The detected humidity level is determined from the output of the temperature level determination circuit shown in FIG. If the flow rate of the roller is cut off after rising to the fixing temperature, the flow rate of the roller decreases by 7 FWt IQ" at t+=r911!1 as shown in FIG. 30. Based on actual measurement data such as lS/i, the temperature levels I, , LIi, Ill,
] Determine the relationship between V and time and write this in kONl etc.,・1
．． (: Do. At this time, the basis g<< used to determine the temperature 1'! level is 10 seconds T; 3Q seconds 21
5 minutes, etc. is determined as appropriate depending on the degree of change in the characteristics of the photoreceptor used with respect to the standing time.

In step (1H105), according to the determined temperature level, a process is executed to read data for 11% from the memory contents of P and OM, and transfer 1 data at a fixed time to a left time counter to be described later. be done. This allows copy a! , even if 1iQW" for (100) is cut off and it is no longer possible to count the standing time, the next time the gaD is corrected, it will settle i!!: the temperature at the time of 3) and ti-!;
It is possible to make the sum of the standing times constant from the first factor to the second, and execute control operations such as sensitivity correction for the photoreceptor.

Figure 22 is executed following the process of 11 self-negative → 211ffl when 1 or 1 is set for the set image (100), and when i+B %1: is set. Idle ++S: Indicates a listening count I routine.

The idle time counter is a digital counter that is falsified using a fixed area of RAM or a register, and in this example, when the main motor (Ml) is stopped, a mask -cl) 302) is programmed to perform addition control for each routine.

When the processing of the 21st ward is executed, the estimated leaving time data is set in the counter,
It will be added to that.

When the main motor (lv1]) is turned on, the step ('#
1302).

(#) 304) When the counter contents and control mode number are cleared (j14), the time measurement data of the non-counter is transferred to the register, for example, and the take is performed. - Step (#1305) ~
(t4130δ)Nioite” = Jl Sita2rE B
f temporary lAi, l' ],, O seconds; t゛30 seconds +
7 NN 5 minutes 77'''30 minutes'' and 11% of that 11%] According to the mode; and transfers the data to RAM or registers. 211th
9a (step ++11o) and the idle ++:=interval data control mode set in FIG.
) is executed at the start of copying operation.
Jil'ffl movement 1; 11 used for sand j.

The 23rd +9-1 is when the print key (1) S There is no indication of the procedure for controlling the preliminary drive /jilj, which is performed in one line when the hand-feeding Sennin sensor (34) is turned on, and the countermeasure 1.,'?
I.

Print key (p s v+; ) or insertion sensor (3
4) When 4- is turned on, step (#] 4.02
) to ('111405), the above figure 21 or 22
Distinguish the number of the control 3dl mode (leaving mode) for 11° 8 hours of radiation permitted/defined by the processing in the figure, and apply the corresponding processing to Ste Nobu (January 406) to (111
1108). Ste Npu (April 406) ~
(-1N408) processing is the mode number ``;- or O'' (leave 11 friends up to 10 seconds) (A print key (1'
S W ) is turned on and I set the playback to 1) 11, and the mode number is 11'' (I left it for 30 seconds at IL%).
This indicates that the eraser lamp (2) is turned on and the timer corresponding to the darkness when the photosensitive drum (1) rotates once is set. Below, whether it is Mort Fukan or 2'' (:t Turn on the eraser lamp (2) and turn on the drum (1)
) h) twice jlj,.

When doing this, set the timer of l'fil,
No. 2 or 3'', 11. Turn on the i oil laser lamp (2), H,:j7 [・'p, -, I charger (3) and correspond to the two rotations of the drum (]). Set the current mode and turn on the eraser lamp (2) and the Obi "J1" when the mode is 4".) 3 of Ram (1) Set a timer corresponding to times 11/-.

And in both cases, step (t+, 1409)
After determining the completion of the timer, start Kansha 1rl1 work!・Issuing a command to do something.

As a result, the photoreceptor drum (1) is rotated and predetermined processing is executed on the photoreceptor before the start of the copying operation in accordance with the standing time, and the photoreceptor is left in a resting state. Corrections are made for changes in mosquito density, surface position changes, etc.

It should be noted that the content of control during preliminary driving with respect to the standing time may be determined as appropriate according to the characteristics of the photoreceptor 1, and the above control is an example thereof.

Figure 24 corresponds to step (#150) in Figure 20,
A process for controlling the operation of a photoprotection plate for automatic image density control (AIDC) is shown.

Here, regarding the mechanism of AIDC, see Section 11, 1. 1111 is simply explained using Section 31 and Figure 32.

In FIG. 1, as the photoreceptor drum (1) rotates, the erase lamp (2) illuminates the entire surface (
After being irradiated with 1, θ, a uniform band 1r is applied to the entire surface by a band charger (3). Next, the surface of the photoreceptor drum (1) is adjusted by the image width and the image interval eraser (4) to remove the portion of the image that is not exposed in the next stage's field image light section, that is, the space between each image (49). and 1[! ! ηii゛I+[ of both sides (image width) of l image
will be removed. During this period, 811 of the messenger's a1 load removal
The details of each day will be explained in detail in FIG. 32.

AIDC is the 31st image before the beginning of each image ν...j.
[As shown in Figure 1, a control pattern (19) having a predetermined /JAjy is exposed to light through a scanning optical system (lo) for projection/exposure (g) including an exposure lamp (17), etc. The surface of the body drum (1) is heated and heated, and then it is transferred to the developing device (
6), and the p degree of the toner image formed on the surface of the photoreceptor is detected by a sensor (S+
=1O), and the detection level is determined by mass>τtsPU (302), and the operation of the toner sleeve supply device (not shown) is controlled accordingly. The aim is to stabilize the 11th statue rebellion. Regarding the opportunity of this AIDC, an example is Toku IP1 1984-. 15191
Details are shown in Publication No. 1.6, etc.

The flowchart of the force 24 diagram is ``-coho pattern (
19) to form an electrostatic image on the surface of the photoreceptor drum (1), the operation of the 1-quadrant and O/W eraser (4) is controlled to create an AiDC image on the surface of the drum (1). This figure shows a process for making the size of the basic notebook pattern constant.

In this year, AIJ)C is 1! y: The control mode differs between the images during the copying operation execution 1171 and the copying operation. That is, when the operation for the first sheet of continuous copying 1141 is started from the copying machine C for one sheet, at the sheet feeding timing (step 111502), the inter-image and (!l/edge eraser (4) A I D.C.
Light emitting diode (LEI) group for iZ-turn type (4
b) (The 321st signal (#) is turned off, and the timer (-1LA) and (T-B) are set.

As shown in S321kl, the inter-image and image width eraser (4) has a 4-yellow arrangement with a large number of LEDs arranged, and when it functions as an inter-image eraser, it burns all L Ii D and Light is irradiated over the entire width of the drum (1), and when the AII) C pattern is formed, only the pattern forming part (4b) in the center is erased at the timing of overlapping, and further functions as an image width (side) eraser. In this case, only the appropriate parts of Cy V erases (4a) and (4c) are controlled to light up, and each LED is controlled by the decoder ( 354) for immediate action control.

If it is determined in step (#1501) that J The AID process is executed only when the switch (SWS) is turned on during the return operation of the scanning optical system (10) associated with the copying operation (see Figure 31). L of eraser (4) during inter-image erase by E l) A of i4 I 1) C
Pattern creation section (41)) and timer (-
1'-A) and (1'-B) are started. Note that the process of step (11, 1506) may be omitted and AII)C may be executed for each copying operation.

In addition, the switch (sw51) is the scanning optical system (10)
When activated when the moving body (18) moves forward, the signal is activated by the timing crawler (21) 'A
This serves as a reference signal for Vt#.

Steps (#]-511) and (#tsx2) indicate that the LJcD group (4b) is turned on when the timer (TA) ends. That is, the position of the rear end of the A l l) C pattern forming section is now precisely controlled.

Step (#1513) ~ (#1519)? ;t,
At the end of tie 7 (T-us), the concentration sensor (sElo
) When it is determined that the pattern d'#g is thin based on the output of the timer (1'-C), toner is replenished for a certain period of IJk determined by the timer (1'-C), and the image 4p? Indicates a lack of energy or extraction. Timer ("I"-A), ('l"-B
), (T-C), etc. may be appropriately determined depending on the rotational speed LIF of the photosensitive drum (1) accompanying y1 production during copying.

Figure 25 shows the amount of time g for each set A+j (for some, the amount of time it takes for the mixing roller to produce depending on the size of the copy paper being fed).
201st YI
The Zo steps (It4601) to (41-i605) corresponding to the step (It16o) are executed when the braid request of the master CPU (302) becomes ``1'' due to the selvage cutting. Selected conflicts;
Turn on the narrow roller of the section; shows the father-in-law. At this time, if the paper feed unit (400) is set to %2f and that is selected, the paper feed command is transferred to the CI (305) for paper feed unit (400) control 1.

Steps (, 111606) to (#1612) are steps to control the continuous operation of the paper feed roller according to the size signal of the copying holder attached to the selected paper feed unit when the paper feed request is raised. Timer (1'-D) to (1'-D) for specifying output 1
T-F) are set respectively, and each paper feed roller is stopped when the timer ends.

The timers ('I'-D) to (71'-1") each have a relation with the above-mentioned feed!IZ and processing methods, so that the paper to be fed protrudes close to the rear part of the paper that has already been processed at the beginning of feeding. In both cases, the time is set in relation to the paper size so that the paper feed roller does not rotate after the trailing edge of the paper has passed through the braided cord/roller section.

With this control, the feeding action of the blade is not hindered.
Small errors such as double sheet feeding can be reliably prevented.

Note that the paper feed section selection method involves specifying the size of the paper feed section and selecting the paper feed section in which it is installed.

Any method of specifying the paper feed section one time may be used.

261Z(a), (I)l is a flowchart showing a process for controlling the paper feeding timing during continuous edge cutting, and corresponds to step (#170) in FIG.

In steps (41, 1701) and (IL1702), it is determined whether the drive signal for the timing roller (21) is on while continuous copying is being executed. The drive signal for the timing roller (21) is the first jz:, fJ+.
It is output by being created at the time.

Next, in step (formerly 703), it is determined whether it is copy paper or thick paper, and if it is 171 paper, the 26th pib)
Proceed to the process of step (1t17) if it is iW-paper passing.
04) Execute the following process. Cardboard can be determined by adding information about cardboard to the above-mentioned copy and 4-bit code for size identification, or by using the switch (SW3) shown in Figure 1.
0), a signal from a switch operated by a user or the like when using cardboard may be used.

In the case of plain paper or thick paper, the control timer (T-G) to (T-K) or (T-G/) (T −
/), determine whether the control timer has ended in step (#1709), and then proceed to step (#1710).
Let us assume that the supply/request explained in FIG.

The control timers (-r-c) to (r-k) are used to execute continuous rear copying, and when the timing roller (21) is turned on and the copy paper is sent out, the trailing edge of the copy paper is set to the timing roller (21). After passing through the timing roller and the timing roller stops again, the leading edge of the next sheet reaches the timing roller (2]).
The size of the paper (length in the reject direction) to reach the
Check the timing to start feeding the next decimal paper according to ];! It is for the purpose of On the other hand, a control timer (T-G') is set when copying with a thickness of F.
~ (T-ni/), the setting time is determined depending on the size of the sheet for passing paper and the size of the paper for printing, but in addition to that, the setting time is determined depending on the size of the paper. The shortest time width in such a case is determined through experiments, etc., taking into account the possible decrease in the temperature of the fixing device (23) and the time required to rise from there to the fixing temperature. Specifically, the timer (-1-G) to (1"-K) is set so that the average price of paper that is continuously fed out is approximately 100wn per interval for 8" 1 of the paper feed. When 1 corner is set, according to the timer (T-G/) to (T'-ni'), the time is set so that the paper interval is about 200 squares (q) on average.Specific Regarding the timer value, per-hole interval, etc., please refer to the manufacturer's manual 47': Feed speed and speed of the fixing device (23).

It is best to decide as needed depending on the heat capacity, such as 11:5.

FIG. 27 corresponds to step (#18o) in FIG. 20, and shows that the cutting group sent out by the process in FIG. This figure shows a process for preventing the timing crawler (21) section from becoming too short in discard interval due to an error.

Along with one copy 9υ, the hole/sensor (29) provided between the intermediate roller (28) and the timing roller (2J).
) or the leading 1v of paper is detected, step (#180
1).

In (111802), the timing to stop the intermediate roller (28) after the paper contacts the stopped timing roller (21) and creates a reverse l loop is set to 3.
4. The timer (]'-1-) for setting is set.

7 (-1' -L) (D p-J" judgment (step (411803)), step (1118
0/1) is executed to stop the opening roller (28) 4
do.

As explained in the 24th and 26th sections, when the switch (SW51) is turned on in conjunction with copying 1111, the timing crawler (21)
(step 805.1806), and the rear end of the first small photo glue conveyed by this moves the sensor (29) to iEh.
iM: Then, the timer (-1"-N1) is set at the off-edge (old step 807) of the detection signal of the sensor (29). The timer (T-A4) is set in 191 series with the sensor (29). It is used for the following controls.

That is, normally, the timing crawler (21) is stopped at the end of the timer (-1"-M), and step (#1.8
01. ) is it okay to return to the processing of the timer ('l
' - M ) is in operation, the sensor (
29) is turned on, the paper INI lay is too small, so step (4118]3), (41181
Step 4) temporarily stops the intermediate roller (28) and timer (1'-1,,), and steps (#+1soc+) to (old 81
2), after waiting for the timing roller (21) to stop when the timer ('1''-N1) expires, the intermediate roller (28) is moved again and the timer ('3-L) is stopped.
) also starts the mountain. At this time, step on edge of sensor (29) (April 5O1).

(1802) is being executed, so the intermediate roller (28) is executed at the end of the timer ('l'-L).
is stopped and done.

this! :;1: By using Ml+, the timing roller (2
1) In part, the inconveniences caused by mistakes or timing errors due to the river H [r-spacing becoming too small are prevented.

The 281st 'y' is the flowchart 1 which is carried out overnight at 1ill j, 41: of the inter-image and image width array (not shown in Figure 32) - (/1), and the 201'y, Corresponds to step 1 (-++19o).4 of eraser (4)
':+'1: 14Il is the J river explained in AII)C.

In this :l1ll jli+, first step (
t11901) to 0f1904), the memory device f1
7: (rt, OM, etc.) 2. 'IE', copy magnification and +1 end (side) L 1'' for erasing
, a "magnification table" that corresponds to the number of power lamps in groups D (4a) and (4C), and the size of ♀l' for photocopying and 1-J! for site erase. : 1) (/Ia), (/
IC) Twist the "saisu table" which corresponds to the number of burns 1
7.1 Compare the selected or set anchor copying magnification with the data of the copied paper size that has been detected.
1, and the data of J9 constant "LED point phantom number for site erase" is stored in the register once.The contents of "Magnification table" and "Size full" are 11 is shown in Table 2 below. It is as shown in Force 3.

Table 2 shows the I corresponding to the erase area according to the number of L E I) shown in the table when the rims are punched out at each copying magnification for one effective copy of the photoreceptor drum (1).
The bad part of Ilhang (1 mountain box, Shi no Shen) is Ryōko ii'i
i means that it has already been erased, and Table 3 shows
Effective width of photoreceptor drum (1) and print size (lN+
, i), or the number of Ll"4 shown in the table
1] means that it corresponds to the erase area.

Note that the numbers of L E I) not shown in the chifur are the numbers emitted from the left and right ends of the site erase portions (4a) and (/+C), respectively.

Next, in step (#1905), a switch (S~'V61) for notifying opening/closing of the document cover (not shown) is activated.
) (J drawing number 1j call) or 1) I unit 202)
The state of the switch (sWl) that detects the opening 1. : Determine and close the site erase lighting number data selected from the magnification table.
l) Transfer to the C register that stores control data. On the other hand, the manuscript cover is I) F unit l- (202)
If it is open, step (#1907) and register A (
Send the data of the magnification table) and the I3 register (data of the size table). Changing the site erase state in response to opening and closing of the cover is described in detail in, for example, Japanese Patent Laid-Open No. 102667/1983.

In this case, considering the slight positional deviation of II i#:, i? In step (April 910), L E
A process is performed to increase the number of lights in I) by one, and the result is further stored in the C register. As a result, with regard to site erasing, an extra charge corresponding to one L E l) is removed, and the generation of dark spots can be more effectively prevented. Also, as shown in step (4i4911), jp
By advancing the start timing and delaying the end timing of the j71 erase, it is also possible to prevent dark spots from occurring at the front and rear of the image. This control can also be achieved by slowing down the opening timing of the bandage and speeding up the end timing. These timing controls are Ll''-D 1 'IIM erase period 11
・The speed should be as slow as &.

4 pictures rA (100), A I) I' (200
) and paper feed unit (400) A, +, > related i/j
An example of 1 is shown in 1 (see below).
If@, the present invention is not limited to the affirmation or form of this invention.

(Hereinafter referred to as "T") Effects As explained above, in the present invention, the leading edge of the conveying roller and the paper that is being fed by the conveying roller are stopped at the timing when they come into contact with each other. In a paper conveying device having a timing roller which is outputted in conjunction with the operation of the device, and a timing roller which is rotationally driven in accordance with the bowing,
2. A sheet detecting means provided between the remote feeding roller and the timing roller without detecting the use of paper, and the one eye [I-
When the rear end passes, the slow movement means is used. When the rear end passes, the timer means starts when the recognition means is set up, and the setting 1141 by the timer means.
2 KJ (When the detection stage or the leading edge of the paper is detected, -J- mark conveyance roller l, 1h 1)
1] Stop 1 from bamboo! ! ilA I! 7J fli'
Since this is a paper feed control device, when the distance between the leading edge of the paper toward the timing roller and the trailing edge of the preceding paper is greater than the interval controlled by the timer, Automatically controls the 4th and 1' feed rollers to stop and widens the paper interval, so 11' when feeding the paper.
Even if there is some irregularity at the paper leading edge position] 1〆1 Positive paper + i
, tl interval and hγr can be maintained, thereby stabilizing the conveyance state of the transport system. Moreover, this makes it possible to increase the speed of paper conveyance and shorten the interval between sheets, and when used in a copying machine, it is possible to achieve an improvement in copying speed.

Further, as described above, when the sensor (29) detects the leading edge of the paper, the intermediate roller (conveyance roller) (28
), (28') timer (-r-t) that stops
is set, and if the timer (T-M) for stopping the timing roller (21)O is in operation, it will stop the intermediate rollers (28), (28') and this timer (T-L). ) also stops the timing operation,
When the timing roller (21) is driven by 11J, the timer (1
゛-L) is restarted. As a result, when the leading edge of the paper comes into contact with the timing roller (21) to form a deflection, the deflection is always substantially constant.
Paper transport can be made more stable.

・1. Figure 1 schematically shows the configuration of a copying machine equipped with the side device of the present invention. '1
Figure 1 is a plan view of the automatic document feeder that works with the copying machine; The 41st page 1 is a diagram showing the relationship of each CPU in the micro-computer system connected to the city of 111, and the 5th page
Figures 1 and 9 are circuit diagrams showing the input/output relationship of each CPU (Figure 1o is the μ body 11 for temperature level detection.
Figure 11 is a flowchart 1-1 that generally shows the processing executed in the post CP [l]. Figures 12 to 19 explain the 4Y details of the other steps. Norouch 1--1-1 No. 201; /, I 7 stars to PIJ IC O (, '-C executed place 1!11 xt collectively small) U- Chart, No. 21 Figure 29 is a flowchart for explaining the annotation of each steno knob in Ei 1 no Rei No. 281 and 1, and Figure 29 shows the +111 loss of the general-purpose paper feeder unit and its comparison with Enoki's machine. Relationship-J
30 is a sectional view of
A graph showing the state of temperature change when the temperature drops, Figure 31 is a shallow 17X
FIG. 32 is a side view showing the structure of the inter-image and image width erasers.

]... Photosensitive drum, 4... Inter-image and image width eraser, 20... Automatic paper feeding mechanism, 21...
・・Timing roller, 23・・・・Standard M device, '
25, 26...Paper feed roller, 27...
Sorting mechanism, 28. Old... Intermediate roller.

29...Paper sensor, 30...Manual paper feed mechanism.

31... Manual feed table, 32... Curved manual feed insertion slot.

34... Manual feed insertion sensor, 36... Manual feed table opening/closing sensor, 52... Numerical display device, 82...
...Size selection operation key, 100/song/copy machine,
200...ADF, SWl...D
F unit open/close detection switch.

5w10...Key counter detection switch, 5
w11-5w14S W 21~sw2.4...
Size detection switch, 51v61...M 4
'+Cover open detection switch, SEI...Document length sensor, 12...Document φ sensor,
5EIQ...Concentration sensor, TH...Feeling,
°I4 element, 300... Control mechanism, 3o1.
...Host CPU, 302...Master C
PU, 400...Paper feed unit Applicant Minolta Camera Co., Ltd. Fig. 10-221- Fig. 11 Fig. 14-Fig. 25 ((1) Fig. 75(b) Fig. 1q Fig. 20 Fig. 21 Fig. 22 n; #/3P person Fig. 24 Fig. 28 Fig. 2'/Fig. Inside

Claims (1)

[Claims] 1. The conveyor roller stops at the timing when the leading edge of the sheet conveyed by the conveyor roller comes into contact with each other, and the conveyor roller stops at the timing when the leading edge of the sheet conveyed by the conveyor roller comes into contact with the conveyor roller, and the conveyor roller stops at the timing when the leading edge of the sheet conveyed by the conveyor roller comes into contact, and In a paper transport device having a rotationally driven timing roller, a paper detection means is provided to detect the paper between the transport roller and the timing roller, and the paper detection means portion is tracked from the trailing edge of the paper. a timer means that starts when the paper detecting means detects this, and when the paper detecting means detects the leading edge of the paper within the time set by the timer means, the conveyance 1. A paper conveyance control device comprising: drive control 1+ means for stopping driving of a roller. 2. When the time set by the timer means has elapsed, the drive of the timing crawler is stopped! [Control 1 described in Section 1 between α] Device. 6. A second timer means is provided which starts when the paper detecting means described in item 1 detects the leading edge of the paper, and the second timer means starts upon completion of the set time.
The timing for stopping the driving of the transport roller is specified, and the timing is determined when the transport roller is controlled to stop due to the tip of the cord being sent to the paper cedar control means during the set time of the control means. , the timing operation of the second timer means is also stopped. TI'J or the open side j device according to any one of paragraphs 2 and 3.