JPS61277970A - Copying machine - Google Patents

Abstract

PURPOSE:To calculate the number of copies and perform setting operation easily and speedily by providing a copy quantity setting means which sets the arithmetic result of an arithmetic means in a quantity display means as the quantity of copies. CONSTITUTION:A print key 51 for starting copying operation and the quantity display part 52 which makes a 7-segment type three-digit numeral display and displays the quantity of copies are arranged on a console panel 50. Further, the console panel is provided with a calculation mode key 72 for setting a calculation mode in which an input numeral inputted with ten-keys 61-70 is processed, arithmetic keys 73-77 for four arithmetical operations, and a quantity setting key 78 with which the numeral of the result of the four arithmetical operations of the numeral inputted with the ten-keys 61-70 is set and displayed on the quantity display part 52 as the quantity of copies. The input numeral and numeral of the arithmetic result are displayed on a 7-segment, 4-digit display part 79. Consequently, the calculation of the necessary number of copies, the input setting of the quantity value, and copying processing are advanced smoothly in series to improve the copy efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a copying machine, and more particularly to a control mechanism for setting the number of copies in a copying machine.

Traditionally, the number of copies to be made in a copying machine has been directly input using a numeric keypad, and the input value has been displayed on the number display section.

However, if the number of copies is simple, for example, 3 copies and 5 copies, for a total of 8 copies, this is not a problem, but if the copies are distributed to multiple copies.

If there is a change in the number of copies, etc., it is necessary to perform some kind of calculation before setting the number of copies. Calculations are often done by mental or written calculations, but the calculation results are generally two to three digit numbers, and when setting the number of sheets, there is a problem that mistakes may be made due to incorrect memory. In addition, since the number of copies to be copied is manually entered using a numeric keypad based on the calculation results, the series of actions from the time you intend to copy to the completion of copying does not always proceed smoothly, and the calculation process may feel rather cumbersome. There are many problems.

In addition, in order to alleviate the troublesomeness of the above-mentioned calculations to some extent, the copying machine is equipped with a cumulative g* function, and when each piece of data for the number of copies is entered in sequence, the cumulative value can be set as the number of copies. , #Kaimei No. 58-31349. However, this disclosed technology has the disadvantage that if you notice an error in inputting the copy number data, you have to clear all data and re-enter the data from the beginning.
If you make copies halfway and then change the number of copies, you will be required to perform cumbersome calculations to correct the number of copies and re-enter data using the numeric keypad, assuming that you do not want to make unnecessary copies. Has shortcomings.

The present invention was made in view of the above-mentioned problems and shortcomings, and even when copies are distributed to multiple locations or the number of copies is changed, it is easy to calculate the number of copies and the number of copies. An object of the present invention is to provide a copying machine in which setting operations can be easily and quickly performed.

λ suction@air [For this reason, the present invention provides a copying machine having a numerical value input means and a number display means for displaying the numerical value input by the numerical input means as the number of copies. It displays calculation means for performing four arithmetic operations, the calculated numerical values, and the calculation results by the calculation means. A display means different from the above-mentioned number display means, and a copy number setting means for setting the calculation result by the calculation means as the number of copies in the number display means, and set the four arithmetic calculation functions and the calculation result as the number of copies in the copying machine. Its basic feature is that it has the ability to

Scale (2) The present invention will be specifically explained below with reference to an embodiment shown in the accompanying drawings. First, the configuration and operation of a copying machine according to an embodiment will be schematically explained with reference to FIG.

copy! Approximately in the center of (100) is a photosensitive drum (1).
is supported so as to be rotatable in the counterclockwise direction in the figure, and around it are a main eraser lamp (2), a sub charger (3), a supply eraser lamp (4), a main charger (5), and a developing device. ff (6L transfer charger (7)
)2 separation charger (8) and cleaning device (9)
) are arranged in sequence. The photoreceptor drum (1) is provided with a photoreceptor layer on its surface, and this photoreceptor is connected to the eraser lamps (2), (4) and charging charters (3), (5).
) is sensitized and charged by passing through the scanning optical system (1
0) to form an electrostatic latent image on its surface.

The scanning optical system (10) is connected to the document table plus (on which the document is placed).
16) is configured so that the original image can be scanned below the light source (17) and the movable mirror (11).
, (12)? (13), an imaging lens (14) and a mirror (15). The light source (17).

The movable mirror (11) has a circumferential velocity (v) of the photoreceptor drum (1).
) (constant regardless of magnification or variable magnification) (v/n)
(where n is the copy magnification), while the movable mirrors (12) and (13) are driven to the left in the figure at a speed of (v/2n).
is driven to the left at a speed of The drive is performed by this scanning DC motor (M3). Further, when changing the copying magnification (when changing magnification), the stepping motor (M4) moves the imaging lens (14) on the optical axis and moves and swings the mirror (15).

Copy paper can be fed from the upper and lower paper feeders loaded on the left side of the copy fi (100) (21), (22) or copy 8! (
(121) l(
122) and fed into the machine via the paper feeding mechanism (20). Any one of the paper feed rollers (24), (25), (
The copy paper sent out by steps 124) and (125) is transported to the copying section by an intermediate roller (26) or (27).
), (126) and (127), and is stopped once by a timing roller (30). The stopped copy paper is sent to the transfer section in synchronization with the image formed on the photosensitive drum (1), receives the toner image transfer by the transfer charger (5), and is transferred to the separation charger (5).
6) from the surface of the photoreceptor drum (1).

Then, the fixing device (32) is transferred via the conveyor belt (31).
After the image is fixed, the sheet is discharged onto a paper discharge tray (34) via a discharge roller (33). After the transfer, the photoreceptor drum (1) is cleaned by a cleaning device f! (9).

Toner and charges remaining on the surface are removed by an eraser (2) or the like, and the sheet is prepared for the next copying process.

In addition, the paper cassette (21) for the selected paper size
Or, when (22) becomes empty, the paper feed force platen (121) of the paper feed tray (101) containing copy paper of the same size is activated.
) or (122), and it is possible to make many copies continuously without replenishing copy paper.

FIG. 2 shows an example of the operation panel of the copy fi (100). The operation panel (50) basically includes a print key (51) for starting the copying operation, and a number display section (52) that can display the number of copies using a 7-segment system and 3 digits. rlJJ2J,...
..., corresponding to the numerical values of r9JJOJ, and the numeric keys (61) and (62L/
..., (69), (70), interrupt key (53) for specifying interrupt copying, clear/stop key (54) for canceling the setting or stopping the copying operation, changing the density of the copied image in steps. Up and down keys (55) and (56) for changing and specifying the paper size, paper size key (57) for specifying the copy paper loaded in multiple stages by paper size, and displaying the selected paper size. Display units (57a) to (57d) are arranged to display the number of sheets.6Furthermore, as a feature unique to this embodiment, numerical values input using the numeric keys (61) to (70) are set in the sheet number display unit (52).・Calculation mode key (72) for switching to calculation mode in which calculations are performed on these input numerical values without displaying them, respectively r + JJ - Jtrx Jt "÷
JJ=J is displayed and the operation key (7) is used to perform four arithmetic operations.
3), (74), (75), (76), (77) and numeric keys (61) to (70), and the number of copies is displayed as the number of copies.
52) is provided with a number set key (78) for setting and displaying. Then, the input numerical value and the numerical value of the calculation result are 7
Segment method: Displayed on a 4-digit display section (79).

This display section (79) utilizes a magnification display section related to setting of copy magnification, which will be described below.

The first group of keys (85) to (93) relating to copy magnification setting are
The keys are divided into a group of magnification setting keys (85) to (89) and a second group of magnification setting keys (90) to (93). (88) is arranged for the purpose of arbitrarily setting the magnification, and is a so-called zoom key (89) for switching the first magnification setting mode.
) is operated and the control mode of the copying machine is switched to the first magnification setting mode (zoom mode), when any key is operated, the numeric keys (61) to (7)
0) and the decimal point key (71) and displayed on the display section (79) are stored as a copy magnification in the memory corresponding to the operated key.

Second magnification setting key group (90), (91), (92)t
(93) has a predetermined copying magnification set in its corresponding memory in advance, and the copying operation is performed based on the preset numerical value without having to set numerical values as in the case of the first group of keys. is being considered so that it can be carried out. Therefore, the preset copy magnification is selected to be a magnification that is considered to be commonly used for each destination. Specifically, at the time of machine assembly or factory shipment, the worker switches (95) according to a predetermined combination depending on the destination, including foreign countries such as the United Kingdom and the United States.
(96) and close the initial switch (SWi) (see Figure 1).
A predetermined value is preset in the M memory.

In this way, the first set of keys allows the user to arbitrarily set the required copying magnification, and the second set of keys is used for commonly used copies, such as A4-B5 for domestic specifications. B4→A4. A
3→A4. Alternatively, it is given the role of a functional tool so that the magnification corresponding to A4→A3 etc. is preset. However, since the numerical value preset for the second key group is a general or calculated copying magnification,
Due to machine errors or design errors, the actual copy may differ slightly from its copy magnification.

For example, even if you select the same size (×1), the actual size is (X
l, 004) or (Xo, 996) times. In such a case, the control mode of the copying machine is switched to the second magnification setting mode by operating the second magnification setting mode switching switch (94) shown in FIG. It is possible to obtain a desired copy magnification by setting arbitrary numerical values in the memory corresponding to each of the keys (90) to (93) using operations similar to those described above.

Note that when any of the magnification setting keys (85) to (93) is operated, the corresponding LED display sections (85a) to (93a) disposed close to the respective keys light up. In addition, each of the above keys corresponds to a normally open Kaida switch in circuit terms, and in the circuit diagrams to be described later, the switches are shown corresponding to the reference numbers attached to each key.

A copy with the above structure? ! (100), as shown in FIG. 3, the first CPU (201), the second CPU
It is associated with a control device (200) including a microcomputer so that its operation is controlled by U (202).

The first CPU (201) controls switch sections (
51).

. . . , a switch matrix consisting of (93), a sheet number display section (52), a magnification and calculation value display section (79)
).

Light emitting diodes (57a) to (57d) for various displays,
(85a) to (93a), etc., are connected via a decoder (203).

In addition, the first CPU (201) has an output port as a main motor in order to control the operation of the copying machine.

It is connected to drive circuits (not shown) such as the developing layer motor, various clutches and chargers, and further includes an interrupt signal input/output terminal (INT) and a data input/output terminal (S1n).
t(Sout), the second CPU (202)
is connected to.

The second CPU (202) copies JfIi (ioo
) to control the operation of the scanning optical system (10),
Scan motor (M3) control circuit (204)
, a variable magnification lens control circuit (205) that controls the stepping motor (M4), and various optical system detection switches (S,).

(S,) etc.

Next, a procedure for controlling the operation of the copying machine by the control device (200) will be explained using charts 70- in FIGS. 4 to 7.

FIG. 4 shows copy 8! executed by the first CPU (201). (
100) is a flowchart generally showing the operation control of step 100). When the power is turned on, the CPU is reset, and the program is started, initial settings are first performed in step (#0). The initial setting is the number of copies displayed (5
2) Copy 1fl (100), such as changing the display to “1”
This refers to processing such as setting variable items of operations to standard states, clearing RAM and registers in the CPU, and setting initial values of various timers built into the CPU.

In the next step (#1), an internal timer built into the CPU and whose value is set in advance as an initial setting is started.

In step (I2), it is determined whether copying is currently in progress. If copying is in progress, step (#5)
and if copying is not in progress, the next calculation routine (#3
).

The calculation routine (I3) is executed by pressing the calculation mode key (72) to switch from the normal copy mode to the calculation mode for calculating the number of copies.
) is activated by pressing the key, and the process is advanced by operating the numeric keys (61) to (70) and calculation keys (73) to (77). Details of this routine will be explained in FIG.

The next copy number setting routine (I4) is basically a routine for setting and displaying the numerical value of the calculation result as the number of copies on the number display section (52).
It is activated by the operation 8). The details of this routine will be explained in FIG. 6 together with other controls associated with setting the number of sheets.

The copy operation routine in step (#5) includes the copy fi(
100) to perform the actual copying operation, and is activated by operating the print key (51). In addition, during this copy operation routine (#5), the CPU communicates with the second CPU (202) that controls the scanning optical system through interrupt processing, and exchanges data regarding the optical system such as scan signals, scan size, copy magnification, and timing. Signal, return M.

Sends and receives fixed position signals, etc. For more information on this routine, see
This will be explained in FIG.

In step (#6), the internal process initialized in step (#0) and started in step (#1) is performed so that the processing time of the program in #ICPU (201) is constant regardless of the processing content. Determine the end of the timer. Then, each time the process is completed, the process moves to step (#1) and the above processing routine is repeatedly executed. Note that various timers used in each routine are counted based on the length of time formed by this loop, and the timer value determines the end of the timer based on how many times this loop has been counted. are doing.

FIG. 5 is a flowchart showing details of the calculation routine.

First, in steps ($301) to (#306), switching processing between copy mode and calculation mode is performed. That is, in step (#301), it is determined whether the calculation mode key (72) has been pressed, and when ON edge is determined, step (#301) is determined.
302), it is determined whether the operation flag is 0” and it is set to “0”.
If so, in step (#303), "0" is set in the first digit of the magnification display section (79) (the other digits are turned off) to clearly indicate that it is the calculation mode. Then, in the next step (#304), the data 17 lag indicating that the first data input using the numeric keypad is waiting is set to 1".
Make it. In step (#321), which will be described later, when first data is input using the numeric keypad, this data is displayed on the magnification display section (79). The above calculation flag is
Four arithmetic operations have been performed more than once, that is, the equal key (77
) indicates whether the step (#
If this calculation flag is '1'' in step 302), the ON edge of the calculation mode key in the previous step (301) returns the display of the magnification display section (79) to the magnification display before entering the calculation mode ( Step (#305)), set the calculation flag to '0'. This step (#305), (#3
06) is a process for canceling the calculation mode when the calculation ends after just executing the calculation.

Steps (#307) to (#314) show processing when the calculation keys (73) to (76) other than the equal key (77) are pressed. When it is determined in step (#307) that any one calculation key is ON, it is determined in step (#308) whether the data flag is "1", and if it is "1", that is, the first data input is completed. Therefore, the data 17 lag is set to "O", and at the same time, in step (#310), the data 27 lag indicating the state of waiting for input of the next data is set to "1"'.

On the other hand, data 17 lag is '0'' and data 27 lag is 1''.
' If it is determined in step ($311), in step (#312), the calculation corresponding to the calculation key pressed in step (#307) is executed. Then, in step (#313), the calculation result is stored in the data 1 area as a predetermined memory area, and the process waits for the next data. Step (#314) is a step for continuing the input waiting state when the calculation is to be continued even after the calculation has been completed. That is, the calculation is temporarily terminated by the ON edge of the equal key in the next step ($315), but in order to continue the calculation, the ON edge of the calculation key in step (#307) indicates the state of waiting for the next data. Set “1” to data 27 lag.

The next steps (#315) to (#319) show processing when the equal key (77) is pressed. When the ON edge of the equal key is determined in step (#315), the calculation is executed in step (#318), and the calculation result is stored in the data 1 area in step (317). Then, in step (#318), the data 2 flag is set to "0", and in step (#319), the calculation flag is set to "1" to indicate that the calculation has been completed.

Steps (#320) to (325) in FIG. 5(b) show processing of input data using the numeric keypad.
If the lag is determined to be 1", if there is human power on the numeric keypad in step (#321), the input data will be input in step (#321).
322), it is stored in the data 1 area and displayed on the magnification display section. On the other hand, if data 17 lag is “O” and data 27 lag is “1” (step ($323))
, if you have numeric keypad power in step (#324),
The input data is stored in the data 2 area in step ($325) and is displayed on the magnification display section.

The next steps ($326) to ($333) show processing when the clear/stop key (54) is pressed in calculation mode. In other words, clear in step ($326)
When the ON edge of the stop key is determined, first, in step (#32n), the prohibition flag (see Figure 6) indicating that the calculation result cannot be set as the number of copies is set to 1.
” is determined. If this prohibition flag is 1”
If so, cancel this in the next step ($328) and set it to 0.
'', and in step ($329), the display on the magnification display section (79) is set to ``0'' to return the calculation mode to its initial state. If the prohibition flag is "0" and the data 17 lag is "1" (step ($330)), the information in the data 1 area is cleared in step ($331) and the numeric display is also canceled. Furthermore, if the data 27 lag is 1", the information in the data 2 area is cleared (steps (#332) to ($3)
33)).

FIG. 6 is a flowchart showing details of the copy number setting routine.

Step ($401) t' O of number of sheets set key (78)
When N-work and 7-no are determined, it is determined in step (#402) whether the 37 lag is 1". If the equal key is operated and the calculation is completed, step ($403)
Proceed to. Here, it is checked whether the calculation result in the data 1 area is a positive integer. If the number is not a positive integer, that is, it is a negative number or contains a decimal, step ($4
07), set the prohibition flag indicating that the number of copies cannot be set to "1", and display the number of copies display section (52).
Prohibits setting to . On the other hand, if the calculation result is a positive integer, the process proceeds to step ($404), and it is determined whether the calculation result is smaller than the maximum settable number of sheets ([999J in this example). If it is small, the calculation result is set and displayed on the sheet number display section (52) in step ($405). On the other hand, if the number of sheets is equal to or greater than the maximum settable number, the process moves to step ($406), and the number of sheets display section (52) shows the following:
The maximum set number of sheets "999" is set and displayed. After completing these set operations, step ($408
) Performance 11. Set the flag to "0" to enable the next calculation mode.

In step ($409), it is determined whether the prohibition flag is "1". ’1”, the next step (#
In step 410), the calculation result displayed on the magnification display section is made to blink. This informs the operator that this calculation result cannot be set as the number of copies.

FIG. 7 is a flowchart showing details of the Fubee operation routine. First, in step ($510), it is determined whether the print key (51) is turned on. That O
If an N edge is detected, the process immediately proceeds to step ($531); otherwise, the process proceeds to step ($530). In step (@530), it is determined whether the copy start flag (F) is "1" or not. If it is "1", in step (#531), the main motor, developing motor, charger, transfer While energizing each charger, the copy flag is set to "1", the copy start flag is set to rOJ, and the timers (T-A) and (T-B
).

In steps ($532) to ($535), one of the two upper and lower paper feed cassettes is selected, and if the upper first paper feed cassette is selected, its roller clutch (CL) is selected.
If the lower second paper feed cassette is selected, its roller clutch (CL) is turned on. Step (
#538) The timer (T-A) for paper feeding is judged, and when it is time to finish, the top or bottom paper roller clutch is turned off (step #53).
7) In the next step ($538), the copy paper feeding timer (T-B) is activated, and when it is time to finish, the scan flag is set to "1" in step ($539). Rub. The scan flag indicates that the scanning optical system (10) is in a scan-enabled state.

In steps ($540) and ($541), the fed copy paper is temporarily stopped in front of the timing roller (30), and waits for a timing signal output as the scanning optical system (10) moves. The timing roller (30) is operated at the output timing of the timing signal to synchronize the leading edge of the copy paper and the leading edge of the image.

In steps (#542) and (#543), the charger is set to 0FFL after a certain period of time counted by the timer (T-C) after the timing signal is output.
, set the scan signal to "0", turn off the timing roller clutch (CL), and stop image formation.

In step (#544), the return signal output when the scanning optical system (10) is about to return to its original position is "
1", and if it is in the process of returning, step (
In step #545), it is determined whether copying for the set number of sheets has been completed. If it has not finished, set the copy start flag to “
1” and proceed to step (#549). Step (
When it is determined that the multi-copy is completed at $545),
In step (#546), when the scanning optical system (10) starts to return to its original position, the fixed position signal "1" is output, and in step ($548), the developing motor and transfer charger are turned off and the copy is made. 7Reset the lag to rOJ and set the timer (T-D) for paper discharge.

When it is determined in step (#549) that the timer (TD) has ended, the main motor (Ml) is stopped at that timing (step ($550)). Step (#55
In 1), the results of the processing up to now are output.

In the above embodiment, the calculation mode key (72) is placed in the position of the numeric keypad, and the number of sheets key (78) is placed in the position where the numeric keypad is located.
Although it is provided at the position where the key is located, the two positions may be reversed. There is an advantage α in that operational errors can be reduced if the key group is functionally cohesive.

As described above, according to the present invention, the copying machine has four arithmetic operations lf.
1m and the calculation result as the number of copies, so even if copies are distributed to multiple departments or the number of copies changes, it is easy to calculate the required number of copies and input the number of copies. A series of copying operations can proceed smoothly, improving copying efficiency, and since no operational setting errors are made, the chances of copying errors can be greatly reduced.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view of a copying machine according to an embodiment of the present invention;
Figure 2 is a schematic plan view of the operation panel of the copying machine, Figure 3 is a circuit diagram showing an example of the control device of the copying machine, and Figure 4 is the 1CP.
5(a) and 5(b) are flowcharts showing details of the calculation routine, FIG. 6 is a 70-chart showing details of the copy number cent routine, and FIG. FIG. 7 is a flowchart showing details of the copy operation routine. 1... Photosensitive drum, 100... Copying machine, 52...
・Number of sheets display section, 61-70...Numeric keypad, 72...
Calculation mode key, 73-77... Calculation key, 78...
- Number of sheets, key, 201... 1st CPU as a microcomputer.

Claims (3)

[Claims] (1) In a copying machine having a numerical value input means and a number display means for displaying the numerical value input by the numerical value input means as the number of copies, a calculation means for performing four arithmetic operations on the numerical value input by the numerical value input means; Displaying the calculated numerical value and the calculation result by the above calculation means,
A copying machine comprising: a display means different from the above-mentioned number display means; and a copy number setting means for setting the calculation result by the calculation means as the number of copies in the number display means. (2) The copying machine according to claim (1), wherein the display means is a display means for displaying a magnification in a copying machine capable of copying at any magnification. (3) A means for determining whether or not the calculation result by the calculation means is acceptable as the number of copies, and when it is determined that it is not acceptable, prohibiting the operation of the number of copies setting means and giving a warning to the operator. A copying machine according to claim 1 or claim 2, further comprising means.