JPS63250664A - Image recorder - Google Patents

Abstract

PURPOSE:To constitute the titled recorder so that the number of sheets of a miscopy due to high speed copying is only one sheet, by providing a scanning mechanism, a photosensitive drum, a feed paper cassette and a transfer device, etc. CONSTITUTION:By a console 25, the number of sheets of a copy, etc., are set, and an original is installed to contact glass 2. Subsequently, when a copy start button of the console 25 is depressed, a lamp is turned on in a scanning mechanism 3, and also, by a control part, a motor 4 and 7 are driven, the mechanism 3 starts to run, and also, a photosensitive drum 6 starts to rotate. Also, a transfer device 11 and a carrying roller containing a carrying mechanism 14 are driven. Next, as the mechanism 3 scans an exposure is executed successively to the surface of the drum 6, and a latent image formed by this exposure is brought to a toner development by a developing device 8. Moreover, only one sheet of form is fed out by a feed paper belt 12 from a feed paper cassette 9 by allowing the timing to match the time when a visible image by the development reaches the transfer device 11, and this form is fed to a transfer position by the mechanism 14. In such a way, the number of sheets of a miscopy becomes only one sheet.

Description

[Detailed Description of the Invention] [Technical Field] The present invention continuously and automatically feeds a set number of recording sheets.
The present invention relates to an image recording apparatus that performs individual recording, and relates to an image recording apparatus that aims to reduce the number of miscopies due to inappropriate transfer paper size, copy magnification, copy density, etc.

[Prior art]

FIG. 6 shows an example of a copying machine, which is the most popular image recording device, and includes a contact glass 2 on which an automatically fed document 1 is placed.

a scanning mechanism (scanner) 3 that optically scans the original 1 placed on the contact glass 2;

A motor 4 that reciprocates the scanning mechanism 3 horizontally along the contact glass 2, a group of mirrors 5 that reflects light emitted from the lamp of the scanning mechanism 3 and reflected on the document surface in a predetermined direction, and a group of mirrors 5. A photoreceptor drum 1, 6 whose pre-charged surface is exposed to light to form a latent image, and a developing device 8 which attaches toner to the latent image formed on the surface of the drum 6 and develops it. , and a paper feed cassette 9 containing copy paper lO.

a transfer device 11 for transferring the visible image created by the developing device 8 onto the paper 10 sent out from the paper feed cassette 9;
A paper feed bell that dispenses paper 10 from the paper cassette 9 in time with the visible image reaching the transfer device 11) 12 and 1 A double-sided drum that temporarily stores paper on which one side has been copied in preparation for double-sided copying. A tray 13, a conveyance mechanism 14 that conveys the paper from the duplex tray 13 or the paper feed cassette 9 to the transfer position, and an output tray 1 that stores the copied paper.
5 and 1, a selector 16 for selecting the conveyance destination of the paper after being transferred to the duplex tray 13 or the ejection tray 15; a solenoid 17 for driving the selector 16; and a solenoid 17 for driving the selector 16; a selector 18 that is moved and a solenoid 19 that drives the selector 18
and a tray sensor 20 that detects that the paper 21 is on the two-sided tray 13, an ejection sensor 22 that detects that the paper is ejected to the ejection tray 15, and a delivery roll 23 that ejects the paper 21 from the two-sided tray 13. , a roll drive mechanism 24 that brings the dispensing roll 23 into pressure contact with the paper 21 only when dispensing the paper 21, and a roll drive mechanism 24 that is provided on the top of the copying machine main body, and the number of copies per copy is 1i! Magnification, mode.

A console 25 that displays buttons for setting paper size, etc. and various settings, a document tray 26 into which the document is sent, a paper feed belt 27 that feeds the document from the document tray 26 to the contact glass 2, and a button on the contact glass 2. A conveyor belt 28 that carries out the original 1 from the contact glass 2, an original discharge tray 29 that stores the original 1 from the contact glass 2, and a registration roller that sends the fed transfer paper to the transfer position when the registration clutch (not shown) is driven. 30 and transfer device 11
The fixing device 31 fixes the toner image transferred to the transfer paper by the fixing device 31.

In the above configuration, from the console 25.

The number of copies, copy mode, reduction ratio, paper size, etc. are set, and the original is placed on the contact glass 2.

Next, when the copy start button on the console 25 is pressed, a lamp is turned on in the scanning mechanism 3, and the motors 4 and 7 are driven by a control section (not shown), so that the scanning mechanism 3 starts running and the photosensitive drum 6 starts moving. Start rotating.

Further, conveyance rollers including the transfer device 11 and the conveyance mechanism 14 are driven.

Note that the separator 16 is located at the upper side in the double-sided copy mode, and the separator 18 is located at the lower position until just before the start of double-sided copying.

As the scanning mechanism 3 scans, the surface of the photoreceptor drum 6 is sequentially exposed to light, and a latent image formed by the exposure is developed with toner by a developing device 8.

The paper is fed from the paper feed cassette 9 at the second feed bell in synchronization with the visible image produced by toner development reaching the transfer 2S11.
Only one sheet of paper is delivered, and the delivered paper is sent to the transfer position by the conveyance mechanism 14.

The visible image on the drum surface is transferred to the paper sent to the transfer position by the transfer device 11, and the transferred paper is fixed by a fixing device (not shown).

In the one-sided copy mode, the paper is sent to the output tray 15, and in the two-sided copy mode, it is sent to the two-sided tray 13.

In the duplex mode, when the first original is copied, the copy paper is fed to the duplex tray 13 by the selector 16, and the second original is placed on the contact glass and scanned. Accordingly, the roll drive mechanism 24 is driven at an appropriate time, the selector 18 is rotated clockwise by the solenoid 19, and the selector 16 is rotated clockwise.
is rotated clockwise by the solenoid 17.

As a result, the paper is dispensed from the two-sided tray 13 by the dispensing roll 23 and sent to the transport mechanism 14.
The mechanism transports it to the transfer position.

Note that while the delivery roll 23 is being driven, the paper feed belt 12 is not driven.

This stop control of the paper feed belt 12 is performed based on a detection signal from the tray sensor 20.

The paper on which the contents of the second original document have been copied is fixed, and then sent to the output tray 15.

Thereafter, the above-described process is repeated every time a copy process is executed, resulting in 9 double-sided copies.

FIG. 7 shows an operation timing chart of each part in the single-sided copy mode. When the number of copies is set to n on the console 25, the scanner 3 and the motor 8 are driven in conjunction with the operation of the start key.

In addition, the paper feed clutch (CL) operates and the paper feed belt 12
is brought into pressure contact with the transfer paper 10 and carried out to the position of the registration rollers 30.

The registration clutch is operated in synchronization with the timing when the leading edge of the toner image on the photosensitive drum 6 reaches the transfer position, rotates the registration roller 30, and sends out the transfer paper 10 to the transfer position.

Transfer is performed sequentially.

Paper is fed every time the scanner 3 completes one round trip, and the above-described process is repeated.

FIG. 8 shows a copying process diagram corresponding to the timing chart of FIG. 7, and while one copy is in the conveying/fixing process, the feeding process of the next transfer paper is started.

However, in conventional image recording devices, in the case of high-speed machines that start the copying process for the second and subsequent copies before the first copy is ejected, when multiple copies are made, the first Even if a copying error (difference in transfer paper size +: incorrect magnification, misalignment of the original, etc.) is discovered after the first copy has been ejected, and the machine is stopped in response, multiple copies have already been made. There is a problem in which dozens of copies are made, and all of these copies become unusable.

In order to avoid such unnecessary copying, it is possible to perform a test copy before copying, but this requires a great deal of effort and time and is not practical.

〔the purpose〕

The present invention has been made in view of the above, and its purpose is to provide an image recording device that eliminates the drawbacks of the prior art and allows only one miscopy in high-speed copying. It is in.

〔composition〕

In order to achieve the above objects, the present invention has two aspects.

Automatically feeds the set number of recording sheets continuously.

In an image recording device that performs recording.

Delay time setting means for making the feeding interval between the first and second sheets of continuous paper feeding longer than the feeding interval between the third and subsequent sheets, and application of the means is executed in accordance with a preset mode. A control means is provided.

Two embodiments of the image recording apparatus according to the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows an embodiment of the present invention, which includes an encoder 40 that outputs a signal according to the rotation of the scanner drive motor 4;
an optical control section 41 that controls the motor 4 at a constant speed during driving based on the output of the encoder 40; an operation section 42 that sets various conditions associated with copying; 31 and the exposure lamp 33 of the scanner 3 as well as the motor 7.
C control unit 43, optical control section 41 and operation section 42
A pulse generator 70 is connected to the information provided by each and generates a pulse signal according to the rotation of the motor 7.
A main control section 44 that controls the drive section 46 including each clutch and solenoid based on the output of the and the output of the sensors 45
It consists of

The pulse generator 70 is a combination with a photo ink clubter that is equipped with a rotary plate provided with comb-shaped protrusions around the entire circumference on the rotating shaft of the motor 7, and generates a pulse signal by passing or blocking light through the protrusions. It is made up of.

The operation of the above configuration will be explained with reference to the flowcharts of FIGS. 2 and 3.

In FIG. 2, when the power switch provided on the console is turned on, the initial (IL) mode (input/output determination, memory control 1 interrupt processing, etc.) is set (step 51). ) mode (determination of whether copying is possible, temperature determination, etc.) is set (step 52).

Next, it is determined whether or not the copy start button 53 has been pressed, and if it has been pressed, the first (FT) mode is set (step 54).

Necessary processing is performed before copying.

After this, copy (CP) mode is set (step 5
5) The driving mechanism etc. necessary for copying are operated to perform copying.

Furthermore, the last (LT) mode is set (step 56).
, post-processing is performed.

When the last mode ends, the process returns to the wait mode 52 in preparation for the primary copy.

FIG. 3 shows the details of the copy mode 55 processing, and shows the details of the copy mode 55.
The knob 61 determines whether or not the copy mode should be executed, and if execution is not determined, a normal copy operation is executed.

Further, if it is determined that the process should be executed, a process for copying only one sheet is executed (step 62).

As shown in Figure 4, paper feeding (a) - copying/development (b) →
The copying of the first sheet is completed through the steps of conveyance and fixing (C1-sheet ejection (d)), and at the same time as the sheet ejection is completed, the soft timer is activated (step 63).

When the timer starts, it is determined whether one hour T2 has elapsed (step 64), and if the time has elapsed, the copying process for the second and subsequent copies (n-1, where n is the set number of copies) is executed (step 65).

As shown in Fig. 5, only the copying interval between the first and second sheets is longer than the conventional paper feeding interval (T2) (the time during which the first and second copying processes do not overlap (e.g. As shown in Figure 8, the conventional third sheet feed time after T1) is set, so the size of the transfer sheet changes within this time.

Even if there is an inappropriate copy density, an error in the reduction ratio, a misalignment of the document, etc., it is possible to take measures such as mode correction and copy stop before the second sheet is fed.

Incidentally, the copy mode shown in FIG. 3 can be arbitrarily selected by the user, and can also be executed when the number of copies per copy is 1° above a certain number.

Further, the delay time T2 can also be set arbitrarily.

These processes will be described later with reference to FIGS. 6 and 7, but the modes shown in Table 1 can be set depending on how the mode setting flag is set.

6 and 7 of Table 1 are flowcharts for carrying out the mode setting process shown in Table 1, which consists of five secondary processing blocks.

Processing ■: Normal copy mode - setting mode processing ■: Processing for selecting whether to execute the mode according to the present invention ■: Setting mode - normal copy mode processing ■: Setting number manual mode processing ■; Setting time manual mode or higher When executing the processes (1) to (2) above, a routine may be added to issue a warning such as a buzzer or the like by flashing the alarm 1 display section to make the operator aware of the mode setting state.

In FIG. 6, first, mode setting flag 2 and flag 1
is "1" (step 71.7)
2) If both flags are "0", it is determined whether a copy operation is in progress (step 73).

If the copy operation is not in progress, it is determined whether the number confirmation key (#) and the program key (β) are pressed at the same time (step 14.75).

If any key is pressed 2, normal copy operation is prohibited (step 76) L, and the mode setting flag 1 is set to r.
lJ (step 77).

When the setting flag 1 in step 77 or step 72 is rlJ, it is determined in step 78 whether or not the key power is "0", and if it is not "0", it is further determined in step 79 whether it is "1" or not. is determined, and if it is "1", set the mode execution flag to "1" (step 80),
Furthermore, set mode setting flag 2 to "1" in step 131.
), then move on to processing ■.

If the key power is "0" in step 78, the mode execution flag is set to "0" (step 83).

Further, if the key manual power is not "1" at step 79 (ie, 2 to 9), the key manual power data is cleared and the process is returned.

When the process of step 83 is completed, the mode setting flag 1
and 2 are set to "0" (step 84),
Furthermore, copy operation prohibition cancellation processing is performed (step 85).
Afterwards, it will be returned.

Next, the flow of FIG. 7 for executing processes (1) and (2) will be explained.

When the process of step 81 in FIG. 6 is completed.

It is determined whether the mode setting flag 1 is rlJ or not (step 86), and if it is rlJ, it is determined whether or not there is key manual input for setting the number of sheets (step 87).

If the key value is a number greater than "2", the value is stored in the data memory (step 89).

On the other hand, if the key human power is "2" or less, the key human power data is cleared (step 91).

After the process in step 89, mode setting flag 1 is “0”
(step 90), and flag 1 is set by step 86.
In the case of "0", the process moves to process (2).

As described above, in process (2), it is determined at what number of copies the process according to the present invention is to be executed.

When process (2) is completed, the process moves to process (2) in which the time T2 (delay time) is determined in seconds after step 92.

In this process, (T+T
A method is used in which the time difference (which varies depending on the linear speed of the machine, layout, etc.) of z) is added.

First, in step 92, it is determined whether the mode setting flag 1 is "0" or not. If it is "0", it is determined whether or not there is key manual power for time setting (step 93), and if there is key manual power, it is determined. Check whether the value is 9 or less (if the maximum time T2 is 9 seconds) (step 94).

If it is 9 or above, clear the key human power (time) data.
(Step 97).

In step 94, if the key manual power is 0 to 9, add the time (T I T Z) to the key manual data (time) (step 95), and store the added time data in the memory (step 96). ).

By making it possible to set the time T2 arbitrarily in this way, it is possible to set the paper feeding time according to the skill level of the operator, thereby minimizing the number of miscopied sheets and increasing the usage efficiency of the recording device. can.

Next, a description will be given of what the operator should do when it is determined that the first copy is a miscopy.

If the operator presses, for example, a clear/stop key during the time T2 after the first copy is ejected, processing is performed to determine that the first copy is a mistake copy (test copy).

FIG. 8 shows the flow of the copy mode corresponding to the processing in FIGS. 6 and 7, where: destination f, mode execution mode flag 1
Determine if is "1" (step 101), and if it is rlJ, compare the set number of sheets with the number of sheets set (step 102)
.

If (set number of sheets≧set number of sheets), a copying process of copying only one sheet is executed (step 104).

Note that if the determination in 101 and 102 is NO.

The process moves to a process of copying the number of sheets set in step 103 (step 103).

After the copying in step 104 is completed, a timer is started to count T2 for one hour (step 105).
), its count up is determined in step 106.

When the count is up, copy (n-1) copies 4
A copying process is executed (step 107).

At the end of this copying, a transition is made to the last mode 56.

On the other hand, if the clear/stop key is pressed before the count-up, the wait mode 52 is entered.

〔effect〕

As explained above, according to the image recording apparatus according to the present invention, even if there is a mistake in setting a condition, it can be detected at the first stage of copying the first copy, so mode correction or copying stop operation can be performed immediately. It is possible to reduce costs by limiting the number of sheets to one sheet.

Moreover, since the delay time for detecting a copy error can be varied, it is possible to drive the apparatus according to the skill level of the operator.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a flowchart showing copy processing in the invention, and FIG. 3 is a flowchart showing details of copy mode processing in the invention. FIG. 4 is an explanatory diagram showing the copying process in the present invention, FIG. 5 is an operation timing chart of each part in the present invention, and FIGS.
The figure is a flowchart showing mode setting according to the present invention, and FIG. 8 is a flowchart showing copy mode processing corresponding to the processing in FIGS. 6 and 7. FIG. 9 is a configuration diagram showing an outline of a copying machine as an image recording device, and FIG. 10 is an operation timing chart of various parts of a conventional copying machine. FIG. 11 is an explanatory diagram showing a conventional copying process. Explanation of symbols 3... Scanning mechanism (scanner) 4.7... Motor 6... Photosensitive drum 9... Paper feed cassette 11... Transfer device 12... Paper feed belt 30... Registration roller 31... Fixing H40 ... Encoder 41 ... Optical control section 42 ... Operation section 44 ... Main control section 46 ... Drive section 70 ... Pulse generator patent distributor Ricoh Co., Ltd. Figure 1 ACll- Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8

Claims (4)

[Claims] (1) In an image recording device that automatically feeds a set number of recording sheets continuously and records each sheet, the first one of continuous sheet feeding
A delay time setting means for making the feeding interval between the second sheet and the second sheet longer than the feeding interval for the third and subsequent sheets, and a control means for executing the application of the means in accordance with a preset mode. An image recording device characterized by: (2) The image recording apparatus according to claim 1, wherein the delay time is made variable. (3) The image recording mode according to claim 1, wherein the mode switches between normal copying and copying using the delay time setting means when a preset condition of a combination of a plurality of flags is met. Device. (4) The image recording apparatus according to claim 1, wherein the mode is such that the delay time setting means is applied when the number of copies is greater than or equal to a preset number.