JPH0143303B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a copying machine capable of continuous copying and interruption copying during continuous copying.

Generally, in a copying machine, when a plurality of copies are to be made in succession, a desired number of copies is set using, for example, a numeric keypad, and continuous copying is performed according to the set number of copies. Recently, among such copying machines, one has been developed which can perform interrupt copying by turning on an interrupt switch during continuous copying to enable interrupt copying. In this case, by turning on the interrupt switch during the above continuous copying to enable interrupt copying, continuous copying is temporarily stopped, another copy is made first, and after the interrupt copying, the interrupt copying enabled state is enabled. By releasing it, the state returns to the state in which continuous copying was in progress before the interruption copying.

However, in such conventional copying machines, when the interrupt copy enabled state is canceled, the copy density selection state, paper feed cassette selection state, reduction ratio (copy magnification) selection state, and sorting setting that were set during continuous copying are In order to return to the original selection state, such as mode or non-sort mode, the operator had to perform all operations again. Therefore, the operation by the operator is troublesome, and there is a possibility that the copying process may be made by mistake without returning to the original state.

This invention was made in view of the above circumstances,
The purpose of this is to create a copying machine that can reliably restore the copy density setting state, etc., to the original state without operator intervention when interrupt copying is canceled, and that can also be returned to in two ways when interrupt copying is canceled. It is about providing.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 schematically shows the internal mechanism of a copying machine. That is, the original placed on the original platen 1 is irradiated with light by the light source 2 that moves forward in the direction of the arrow, and the reflected light is reflected by the mirror 3 that moves forward in the direction of the arrow together with the light source 2, and the mirror 3 that moves forward in the direction of the arrow. Lens 5 ₁ or 5 ₂ by mirror 4 which moves forward at 1/2 speed.
guided by. In addition, the lens 5 ₁ has a copying magnification of "1:1", and the lens 5 ₂ has a copying magnification of "1:1/1".
2” (reduced). The reflected light guided by the lens 5 ₁ or 5 ₂ is guided to the mirror 6 and then reaches the photosensitive drum 8 via the slit 7, and an image of the document is formed on the photosensitive drum 8. The photosensitive drum 8 rotates in the direction of the arrow shown in the drawing, and is first charged by a charger 9, and then the image of the document is slit exposed to form an electrostatic latent image on its surface. This electrostatic latent image is made into a visible image by adhering toner to it by the developing device 10, and this toner image is attracted to the copy paper 12 by being charged to the copy paper 12 by the transfer charger 11. As a result, the toner image is transferred to the copy paper 12. After the transfer, the photosensitive drum 8 and the untransferred toner are neutralized by a charger 13a. Thereafter, untransferred toner is removed by the cleaning device 13b to perform cleaning.

On the other hand, the copy paper 12 is transferred to a paper feed section, for example, paper feed cassettes 13 ₁ and 1 in synchronization with the rotation of the photoreceptor drum 8.
3 ₂ by take-out rollers 14 ₁ and 14 ₂ , and is lifted upward by transport rollers 15 and 15 and sent to the transfer section. The copy paper 12 sent to the transfer section comes into close contact with the photoreceptor drum 8 at the transfer charger 11, and the image on the photoreceptor drum 8 is transferred. The copy paper 12 after transfer is transferred to the conveyance roller 16
The copy paper 12 is sent to the fixing device 17 through the fixing device 17, where the transferred image is fixed, and the copy paper 12 is discharged from the discharge port 19 by the paper discharge roller 18.

On the other hand, the copy paper 12 discharged from the discharge port 19 is supplied into a storage body, such as a sorter 20, provided on the side of the main body of the copying machine. The sorter 20 is composed of a plurality of storage sections, such as bins 21 ₁ , 21 ₂ . These bins 21 ₁ , . . . are configured such that the entrance side of each of the bins 21 ₁ , . For example, the sorter 20 is
In non-sort mode, store in bin 21 ₁ (bin 2
₁ has a larger storage capacity than other bins), and in the sort mode, bins are stored in order starting from bin ₂₁ .

FIG. 2 shows the operation section of the copying machine. That is, a copy switch 31 instructs to start copying, a numeric keypad 32 to set the number of copies, a self-illuminated copy density selection switch 33 to select and instruct copying of dark originals, and a self-illuminated copy density selection switch 33 to select and instruct copying of light originals. switch 34, self-illuminated copy magnification switch 35 that selects and instructs copying with a copying magnification of "1:1"; self-illuminated copying magnification switch 35 that selects and instructs copying (reduction) with a copying magnification of "1:1/2"; 36, self-illuminated upper cassette selection switch 37 for selecting and instructing paper feed from the paper feed cassette ₁₃₁ ;
A self-illuminated lower cassette selection switch 38 for selectively instructing the paper feed of the paper feed cassette ₁₃₂ ; when turned on during continuous copying, it becomes ready for interrupt copying;
A self-illuminating interrupt switch 39 that cancels the interrupt copy enabled state by re-turning the switch on, a self-illuminating sorter switch 40 that instructs whether the sorter 20 is in sort mode or non-sort mode, and a setting that displays the set number of sheets for continuous copying. It is composed of a copy number display 41 and a copy number display 42 that displays the number of copies.

FIG. 3 shows the main parts of the electric circuit. That is, the control circuit 51 displays the set number of copies on the set number display 41 in response to a signal from the numeric keypad 32, and also causes a copying operation to be performed in response to a signal from the copy switch 31 to copy the number of copies. This is displayed on the sheet number display 42. The control circuit 51 also controls the interrupt switch 39.
Depending on the signals from the
When the paper feed is stopped and all the copy paper in the machine is ejected, the main motor is stopped to become ready for interrupt copying and the timer 53 is started. be. Further, the control circuit 51 causes interrupt copying to be performed in response to a signal from the copy switch 31 etc. when the copy switch 31 is enabled for interrupt copying.
Alternatively, when a predetermined period of time has elapsed without the numeric keypad 32 being pressed, a signal is supplied from the timer 53 to set the state in the middle of continuous copying before the interrupt copying, that is, the copying density selection state read from the RAM 52. It is something. Furthermore, when a predetermined period of time has elapsed without the copy switch 31 being turned on during continuous copying, a signal is supplied from the timer 53 again, resulting in a standard state (copy standby state) immediately after the power is turned on.

On the other hand, a signal instructing the sort mode or non-sort mode from the control circuit 51 is supplied to the control circuit 54 provided on the sorter 20 side.
For example, when the control circuit 54 is supplied with a signal instructing the non-sort mode, the drive circuit 55
_The bins _{21 1} , . Each bin 21 ₁ , . . . stores copy paper 12 in order.
It's starting to move.

Next, the operation of such a configuration will be explained with reference to the flowchart shown in FIG. For example, assume that a power switch (not shown) is turned on and the machine is ready for copying. In this case, the control circuit 31 selects "1:1" as the copy medium ratio,
The copy magnification switch 35 is turned on, the upper cassette ₁₃₁ is selected, and the upper cassette selection switch 37 is turned on. Further, the control circuit 51 sets the copy density to standard, sets the non-sort state, and displays "1" on the set number of sheets display 41 and "0" on the number of copies display 42. This state is a standard state, and when the number of copies is set using the numeric keypad 32 in this standard state, the number of copies is displayed on the set number of copies display 41. Further, by turning on the copy density selection switch 33, the switch 33 lights up and is set to copy a dark original. Further, by turning on the sorter switch 40, the switch 40 is turned on and a sort mode signal is output to the control circuit 54. This causes the control circuit 54 to enter the sort mode. When the copy switch 31 is turned on, a main motor (not shown) is driven, and the photosensitive drum 8 is rotated in the direction of the arrow. After the predetermined time has elapsed, the take-out roller 1
4 ₁ , conveyance rollers 15, 15, etc. operate.
Then, when the copy paper 12 is taken out from the paper feed cassette ₁₃₁ , a counter (not shown) is counted up and "1" is displayed on the copy number display 42. At this time, the light source 2 and mirrors 3 and 4 start moving forward. The operation of the take-out roller 14 ₁ and the transport rollers 15 , 15 is stopped, and the copy paper 12 is stopped before the charger 11 . Thereafter, the light source 2 and the mirrors 3 and 4 are stopped, and the temporarily stopped copy paper 12 is conveyed again. When the copy paper 12 is conveyed to a predetermined position, the light source 2 and mirrors 3 and 4 are moved back. At this time, the second sheet of copy paper 12 is taken out from the paper feed cassette ₁₃₁ . This results in
A counter (not shown) counts up and "2" is displayed on the copy number display 42. Thereafter, after a predetermined copying operation, the first copy paper 12 is discharged from the discharge port 19. At this time, the control circuit 54
drives each bin 21 ₁ ,... with a drive circuit 55,
The bin ₂₁₁ was made to correspond to the outlet 19. As a result, the copy paper 12 discharged from the discharge port 19 is stored in the bin ₂₁₁ . Thereafter, the control circuit 54 drives each of the bins 21 ₁ , . . . with a drive circuit 55, so that the bins 21 ₂ , .

Then, when the light source 2 and the mirrors 3, 4 return to their starting positions, they are moved forward again. after that,
The second copy paper 12 undergoes the same operation as the first copy paper 12. Thereafter, the copy sheets 12 are sequentially taken out from the paper feed cassette ₁₃₁ in the same manner as described above, and are discharged after undergoing a predetermined copying operation. The ejected copy sheets 12 are stored in the sorter 20 in order from bin ₂₁₁ .

Also, without turning on the sorter switch 40,
Even when the control circuit 54 is in the non-sort mode, it operates as described above, and the copy sheets 12 fed into the sorter 20 are stored in the bin 21 ₁ .
Furthermore, by setting the copy density to correspond to copying standard or light originals,
It works as described above. Furthermore, even when the copy magnification switch 36 is turned on for reduction, copying corresponding to reduction is performed.

Now, suppose that the interrupt switch 39 is turned on during continuous copying as described above, that is, when the set number of copies is 100 and the number of copies is 55. Then, the control circuit 41 turns on the interrupt switch 39,
When the copy paper 12 inside the machine is ejected, the main motor is stopped. At this time, the control circuit 41 controls the state of each copying condition during continuous copying, that is, copying a dark original (copy density selection state), paper feeding by the paper feed cassette ₁₃₁ (paper feed cassette selection state), and copying magnification. Stores "1:1" copy (copy magnification selection state), sort mode (sort selection state), set number of copies 100 sheets, number of copies 55 sheets (number display state) in RAM 52, and changes to non-sort mode. At the same time, "1" appears on the set number of sheets display 41.
By displaying "1" on the copy number display 42, the standard state is set when the power is turned on. Also, at this time, the control circuit 51 starts the operation of the timer 53.
Thereafter, various copying states are set by turning on the numeric keypad 32, etc., and each time the timer 53 is turned on, the timer 53 starts operating again from the beginning, and when the copying switch 31, etc. is turned on, the copying state is set. After the copying, the timer 53 starts operating again. Then, when a predetermined period of time has elapsed after the timer 53 started operating, or when the interrupt switch 39 is turned on again, the control circuit 51 cancels the interrupt copy enabled state, thereby setting the state in the middle of continuous copying. . That is, by reading each status from the RAM 52, the sorter switch 40, copy density selection switch 33, upper cassette selection switch 37, and copy magnification switch 36 are turned on, and "100" is displayed on the set number display 41, and "100" is displayed on the copy number display. Display "55" in 42.
Then, by turning on the copy switch 21, the above-described continuous copying is continued in the same copying state. Further, when the state is in the middle of continuous copying, the operation of the timer 53 is started again. Thereafter, when a predetermined period of time has elapsed without the copying switch 31 being turned on, a signal is supplied from the timer 53 to the control circuit 51. As a result, the control circuit 51 cancels the continuous copying state, enters the standard state (copying standby state) immediately after power is turned on, enters the sort mode, sets the copying density to the standard original, and displays "1" on the set number of sheets display 41. , copy number indicator 4
Display “0” in 2.

In the above embodiment, when setting to the standard state, one of the paper feed cassettes is selected, but the present invention is not limited to this. When setting to the standard state, the paper feed cassette is not selected. You can do it like this.

As described in detail above, according to the present invention, in a device that has keys for setting the copy status and instructing copying, and is capable of continuous copying and interrupt copying during continuous copying, interrupt copying operations and interrupt copying during continuous copying are possible. Instructing to cancel the copying operation by the instruction means, and when this interrupt copying operation is instructed, storing the copy density selection state before the interruption in the storage unit, and starting the interrupting copying operation instructed by the instruction means. The timer starts operating from the starting state each time the copying state is set or a key instructing copying is turned on, and when the timer has been operating for a predetermined period of time or the above When canceling the interrupt copying operation is instructed by the instruction means, the state is set according to the contents of the storage unit, so that when canceling the interrupt copying operation, the operator can reliably cancel the copying operation. You can restore the copy density settings etc.
Furthermore, it is possible to provide a copying machine that can return in two ways as interrupt copy cancellation.

[Brief explanation of drawings]

The drawings show one embodiment of the invention.
The figure is a side view schematically showing the internal mechanism, Figure 2 is a plan view showing the operation diagram, Figure 3 is a block diagram showing the main parts of the electric circuit, and Figure 4 is a flowchart to explain the operation. be. 31...Copy switch, 32...Numeric keypad, 3
3, 34... Copy density selection switch, 35, 36
... Copy magnification switch, 37 ... Upper cassette selection switch, 38 ... Lower cassette selection switch, 39 ... Interrupt switch, 41 ... Set number of sheets display, 42 ... Number of copies display, 51 ... Control circuit , 52...RAM, 53...Timer.

Claims (1)

[Claims] 1. In a copying machine that has a key for setting the copying state and instructing copying, and is capable of continuous copying and interrupt copying during continuous copying, interrupt copying operation and cancellation of this interrupt copying operation are provided. an instruction means for instructing; and when an interrupt copy operation is instructed by this instruction means,
a storage unit that stores the copy density selection state before the interruption; and a storage unit that starts operating at the start of the interruption copying operation instructed by the instruction means, and each time a key for setting the copying condition or instructing copying is input. a timer that restarts its operation from the starting state again when the timer starts operating again from the starting state; A copying machine, characterized in that it is equipped with means for setting the machine to a set state, and the following. 2. The copying machine according to claim 1, wherein the storage unit stores the copy density selection state before the interruption and the number of copies before the interruption when an interruption copying operation is instructed. . 3. Claim 1, characterized in that, when an interrupt copying operation is instructed, the storage section stores the copy density selection state before the interruption and the paper feed cassette selection state before the interruption. copy machine. 4. The storage unit according to claim 1, wherein when an interrupt copying operation is instructed, the storage unit stores the copy density selection state before the interruption and the copy magnification selection state before the interruption. Copy machine. 5. The copying apparatus according to claim 1, wherein the storage unit stores the copy density selection state before the interruption and the sort selection state before the interruption when an interruption copying operation is instructed. Machine. 6 After the timer has been operating for a predetermined period of time, or after the instruction means has instructed to cancel the interrupt copying operation, the timer is restarted, and the timer continues to operate for a predetermined period of time. 2. The copying machine according to claim 1, wherein all copying conditions are set to standard conditions at times. 7 After the operation of the above-mentioned timer has been continued for a predetermined period of time, or after the cancellation of the interrupt copying operation is instructed by the above-mentioned instruction means, the operation of the above-mentioned timer is restarted, and the operation of this timer is continued for a predetermined period of time. 2. The copying machine according to claim 1, wherein copying conditions other than the paper feed cassette selection state are sometimes set to a standard state.