JPH03174167A - Recording device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention can be applied to recording devices that record on paper, such as printers and copying machines. Specifically, the present invention relates to a recording apparatus that sequentially records on a plurality of sheets of paper while simultaneously conveying them during recording.

Traditionally, in this type of recording device, when receiving a command to stop the drive system of the device (hereinafter referred to as a "stop request") due to the occurrence of an error such as toner near end or abnormal temperature rise, the following message is sent to the recording device as shown in Fig. 11. As shown in Figure 2, the drive system of the device was immediately stopped without determining whether the request was a non-urgent stop request or an emergency stop request, and the paper being transported was stopped on the transport path. After the stop request is released, the remaining recording is performed on the waiting sheets, or the sheets are ejected from the apparatus without being recorded.

However, if it takes a long time to cancel the stop request, there is a problem that, for example, the paper may curl and the occurrence of jams increases.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve such conventional problems in recording apparatuses and to suppress the occurrence rate of jams to a low level.

SUMMARY OF THE INVENTION Therefore, as shown in the illustrated embodiment below, the present invention provides a recording apparatus that simultaneously conveys a plurality of sheets of paper 28 during recording and sequentially records on them. Requests are divided into emergency stop requests and non-emergency stop requests, and when an emergency stop request is made, the drive system of the device is immediately stopped, and when a non-emergency stop request is made, all of the sheets 28a to 28e being conveyed are stopped. It is characterized in that the recording medium is ejected after recording and the drive system is stopped.

In other words, when a non-emergency stop request is made, all of the sheets 28a to 28e being conveyed are recorded without immediately stopping the drive system of the device, and then they are ejected from the device and the device is restarted. Stop the drive system.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 3 shows the overall system configuration of a laser printer which is an embodiment of the present invention. In the figure, numeral 10 is a printer main body, and the illustrated embodiment shows a case in which five optional units are attached to the main body of the printer along with a system table 11. That is, the large-volume paper feed unit 12 is provided on the right side of the system table 11 in the figure, and the job stacker 13 is provided on the left side. Further, the duplex unit 14 is placed on the system table 11, and the printer main body 10 is placed thereon via the duplex unit 14. A reversing unit 15 is attached to the left side of the printer main body 10 in the figure.

Further, a sorter 16 is attached to the left side thereof.

Therefore, these optional units 12 to 16
Both can be attached to and detached from the printer main body 10 as appropriate. In the laser printer system of the illustrated embodiment, in addition to the illustrated example, various other units such as a paper folding unit and a stapler unit can be attached and detached as needed.

The printer main body 10 includes a photosensitive drum 20, a charging section 21, an optical writing section 22 that performs optical scanning using a laser beam, a developing section 23, a transfer section 24, a fixing section 25, etc., inside an exterior case 19. Then, the printer main body 10 is fed with a feed roller 27 from paper feed cassettes 26 provided in upper and lower two stages on the right side of the outer case 19 in the figure, or fed from below from the bulk paper feed unit 12 via the duplex unit 14.
Paper 28 is fed. Thus, both paper transport paths become one before the transfer section 24 and guide the paper 28 to the photosensitive drum 20. Then, the photosensitive drum 20 is charged with electricity.
Exposure, development, transfer, separation, lining, neutralization, and charging are performed, and the exposed light information is created as a visible image using an electrophotographic method. Then, the image on the photosensitive drum 20 is transferred to the paper, and then fixed by applying heat and pressure in the fixing section 25, and then the paper is discharged below the reversing unit 15.

The mass paper feed unit 12 supplies a large amount of paper 28 to the printer main body 10, and as shown in FIG.
An elevator 31 that stacks a large amount of paper 28 and moves up and down; a paper plate 32 with a paper size detection mark on which the paper 28 is placed on the elevator 31; a paper size detection means (not shown); A paper feeder 33 that sequentially sends out the paper, a paper transport path 34 that transports the paper 28 sent out from the paper feeder 33, and a paper discharge port on the upper left in the figure that discharges the paper 28 sent through the paper transport path 34. 35 etc.

The paper 28 discharged from the paper discharge port 35 is fed into the first paper feed port 38 of the duplex unit 14 shown in FIG. The paper is sent out from the wandering paper port 42 and fed into the printer main body IO.

The reversing unit 15 selectively switches and discharges the paper 28 discharged from the printer main body 10 in a desired direction, and is constructed as shown in FIG. 6 and operated as shown in FIG. 7. That is, the fixed first switching roller (Wj
The second and third switching rollers 45 and 46 that press against the moving roller A) 44 move in the A-B direction, the switching guide 47 moves in the C-D direction, and the transport roller 48 and return roller 48a
are in the E-F direction, and the paper output guide 49 is in the G direction.
-H direction, each is movable. Therefore, 1) when the paper 28 is ejected upward onto the paper ejection tray 50 shown in FIG. 3, the second and third switching rollers 45 and
46 in the A direction, the switching guide 47 in the C direction, the conveyance roller 48 in the E direction, and the return roller 48a in the F direction. Then, the paper 28 from the printer main body 10 passes through the entrance conveyance path 51 and is guided between the first switching roller 44 and the second switching roller 45, and the first switching roller 44 rotates counterclockwise in the figure. The sheet is guided by the switching guide 47 and enters the main conveyance path 52, and then is discharged by the conveyance rollers 48 through the upper paper discharge port 53 to the paper discharge tray 50.

2) Do the same thing when reversing the paper 28 and ejecting it to the left to send it to the sorter 16 shown in FIG.

The second and third switching rollers 45 and 46 are moved in the A direction, the switching guide 47 is moved in the C direction, and the conveyance roller 48 is switched in the E direction, and the return rollers 48a & F are moved.
Switch direction.

Then, the paper 28 also enters the main conveyance path 52, but
When the rear end passes the I and second switching rollers 45 and 46, the conveying roller 48 is switched to the F direction,
Switch the return roller 48a in the E direction, and switch the switching guide 47.
is moved in the D direction, and the paper output guide 49 is moved in the H direction. Then, the paper 28 is returned, passes between the first switching roller 44 and the third switching roller 46, is guided by the paper exit guide 49, enters the left conveyance path 54, and passes through the left paper discharge port 55.
through which it is discharged to the sorter 16.

3) When the paper 28 is reversed and ejected downward to be sent to the duplex unit 14 shown in FIG.
The paper 28 that has passed between the and the third switching roller 46 is
The paper is guided by the paper output guide 49 and enters the lower conveyance path 56, and is discharged to the duplex unit 4 through the lower paper discharge port 57.

4) When discharging the paper 28 to the left without reversing it, move the second and third switching rollers 45 and 46 to B.
direction, move the switching guide 47 in the D direction, and switch the paper output guide 49 in the H direction. Then, the paper 28 continues between the first switching roller 44 and the second switching roller 45, passes between the first switching roller 44 and the third switching roller 46, is guided by the single paper output guide 49, and is conveyed to the left. Road 54
and is discharged from the left paper discharge port 55.

5) When discharging the paper 28 downward without reversing it, similarly, the second and third switching rollers 45 and 46
are moved in the B direction, and the switching guide 47 is moved in the D direction, but the one-sheet output guide 49 is switched to the C direction. Then, the paper 28 is transferred between the first switching roller 44 and the second switching roller 4.
5, passes between the first switching roller 44 and the third switching roller 46, is guided by the paper output guide 49, enters the lower conveyance path 56, and is discharged from the lower paper discharge port 57.

The sorter 16 is for sorting the sheets 28 sent from the left sheet discharge port 55 of the reversing unit 15, and as shown in FIG. Sequential tray 61
send it upwards. Then, stack them one after the other with the front side facing up, or stack them upside down in sequence with the front side down. Stacking the pages upside down has the advantage that the pages can be arranged in the order in which they were printed.

The duplex unit 4 performs double-sided printing on the paper 28 discharged from the reversing unit 15, and after stacking the paper 28 once again, it refeeds the paper to the printer main body 10.
Configure as shown in the figure.

That is, the paper 28 ejected from the lower paper ejection port 57 of the reversing unit 15 is transferred from the second paper feeder 64 to the duplex unit 1.
Enter within 4. The paper 28 that has entered the duplex unit 4 is
The paper is fed by an entrance roller 65, switched by a switching claw 66, and if only one-sided printing is to be performed, the paper passes through a paper discharge conveyance path 67 and is discharged from a second paper discharge roller 69 by a non-discharge roller 68. In the case of double-sided printing, the paper is sent to the discharge gate 70 on the right side in the figure, where the discharge position is selected depending on the paper size and discharged toward the intermediate tray 71. The paper 28 sent to the intermediate tray 71 is moved to a jogger unit 72 also shown in FIGS. 8 and 9, is conveyed by a collapsing roller 73, and is stopped against a stopper 74 with its leading edge aligned. Then, the upper guides 75 and 76 regulate the lifting, and the jogger fences 77 and 7
8 regulates the width direction position, and the jogger unit 72 is stacked at that position. Thereafter, when the stop by the stopper 74 is released at a predetermined timing, the paper 28 stacked at that jogger unit 72 position is transferred to the paper refeeding section 7.
Re-feeding starts at 9, and the pickup roller 79a
The sheet is fed out, passed between the feed roller 79b and the separate roller 79c, and sent from the re-feed conveyance path 80 to the sheet feed conveyance path 41.

The paper is sent by the intermediate roller 39 and the upper discharge roller 40 and sent out again to the printer main body 10 from the first wandering paper opening 42.

The job stacker 13 sequentially stacks a large amount of paper 28 ejected from the printer main body 10.
It is configured as shown in Figure 0. That is, duplex unit 1
The paper 28 discharged from the second paper discharge roller 69 of No. 4 enters the job stacker 13 from the paper entrance 83. Inside the job stacker 13, there is a job separation function that moves the transport path for each job to selectively shift the stack position of the paper 28, and a paper plate that adjusts the stack amount according to the stack amount so that the top surface of the stacked paper 28 remains constant. It has an elevator function that moves 84 up and down. Using these two functions, a large amount of paper 28 is separated for each job and stacked with the front surface facing up or facing down. The reference numeral 85 in the figure is a job separation roller that moves the paper 28 while moving in the axial direction. Note that if the duplex unit 14 is not provided, the paper 28 will be sent directly from the printer main body 10 to the job stacker 13.

Finally, a control section for electrically controlling each unit is provided within the system table 1. That is, as shown in FIG. 3, the system table 11 includes a user controller 88, a system controller 89, and an AC distribution unit 90.

By the way, in the illustrated laser printer system, during recording, a plurality of sheets of paper 28 are simultaneously conveyed and recorded on them one after another. For example, when performing double-sided recording, as shown in FIG. The third sheet 28c is reversed and returned to the printer main body 10, and the fourth sheet 28 is reversed after recording on one side and sent to the duplex unit 14.
d, and a fifth sheet 28e that is being recorded on one side in the printer main body 10, a total of five sheets are being transported, and while these sheets 28a to 28e are being transported, double-sided recording is sequentially performed on them.

Now, in the recording device according to the present invention, a stop request may be generated based on an error and the drive system of the device may be stopped. It will be divided. For example, an emergency stop request may be caused by an abnormality in laser lighting.
Optical system errors such as polygon motor abnormality/synchronization detection abnormality, paper feeding system errors such as height detection abnormality, fusing system errors such as abnormal temperature rise/abnormal temperature drop in the fusing section, thermistor abnormality, fuser thermistor disconnection or short circuit, main motor These include drive system errors such as abnormalities, power supply system errors such as output voltage abnormalities/p, s, and u, abnormal temperature rises, memory system errors, and occurrence of jams. On the other hand, non-emergency stop requests include, for example, toner near end, fixing oil near end, and paper end.

As shown in Figure 1, when an emergency stop is requested,
Immediately stop the drive system of the device, and when a non-emergency stop request is made, do not immediately stop the drive system of the device, record on all the sheets of paper 28 being conveyed, and then eject them from the device. After that, stop the drive system of the device.

For this reason, in the illustrated printer system, the amount of remaining toner approaches the limit for recording on all of the sheets being transported (in the example shown in FIG. 2, recording is performed on four sheets of paper 28b to 28e). At this time, toner near end is displayed and a stop request is issued.

Also, in the case of oil near end, as in the case of toner near end, when the limit for recording on all the sheets being conveyed is approached, oil near end is displayed and a stop request is issued.

If the paper is at the end, search for another paper feeder, and if there is paper of the same size, feed the paper from that paper feeder. If there is no paper of the same size, a paper end is displayed and a stop request is issued.

The illustrated embodiment shows an example in which the present invention is applied to a laser printer system in which a duplex unit 14, a reversing unit 15, etc. are attached to a printer main body IO. However, the present invention is not limited to the illustrated laser printer, but can be applied to other printers, and can also be applied not only to printers but also to other recording devices such as copying machines.

Effects of the Invention Therefore, according to the present invention, when a non-emergency stop request is made, after recording all the sheets of paper being conveyed,
Since the paper is ejected out of the device and the drive system of the device is stopped, there is no need to worry about the paper curling, even if it takes a long time to release the stop request, and the occurrence rate of jams can be kept low. can.

[Brief explanation of the drawing]

1 to 10 show a laser printer system which is an embodiment of the present invention, FIG. 1 is a flowchart thereof, and FIG. 2 is an explanatory diagram showing a plurality of sheets being transported,
Fig. 3 is a schematic diagram of the entire system, Fig. 4 is a schematic diagram of its bulk paper feed unit, Fig. 5 is a schematic diagram of its duplex unit, Fig. 6 is a schematic diagram of its reversing unit, and Fig. 6 is a schematic diagram of its reversing unit. Fig. 7 is a list explaining the operation of the reversing unit, Fig. 8 is a perspective view of the intermediate tray and jogger unit portion of the duplex unit, Fig. 9 is a schematic configuration diagram of that part, and Fig. 1
FIG. 0 is an explanatory schematic configuration diagram of the job stacker. FIG. 11 is a flowchart of a conventional recording apparatus. 28・・・・・・Paper 28a to 28e・・・・・・Paper being conveyed Patent applicant Rico Co., Ltd.

Claims (1)

[Claims] In a recording device that conveys multiple sheets of paper at the same time during recording and records on them sequentially, multiple stop requests are divided into emergency stop requests and non-emergency stop requests, and when an emergency stop request is made, the device immediately When a non-emergency stop request is made, the recording apparatus records all of the sheets being conveyed and then discharges the sheets, and then stops the drive system.