JPS60138535A - Copying machine with automatic original conveying device - Google Patents

Abstract

PURPOSE:To set an ADF mode, etc., by entering an automatic original feed mode after an original setting sensor which detects an original on a platen turns off and then on more than once when a copy is taken again after transfer paper jams. CONSTITUTION:When the original is set on the platen 3 of an automatic original conveying device 1, an original setting sensor 4 detects the original and turns on. This state is held in ADF model. When a paper feed signal arrives from a main frame 1, a motor which is not shown in a figure rotates to convey the original with a separation belt 5 and only one original is separated with a separation blade 6. A computer checks a jam detection signal and if a jam occurs, the automatic feed mode is entered after the original setting sensor turns on and then off more than once to enter a pressure plate mode.

Description

[Detailed description of the invention] (Technical portion: 1f) The present invention relates to a copying machine with an automatic original high-transport device.

When you set the device to automatic document transport mode (hereinafter referred to as ADF mode) or semi-automatic document transport mode (hereinafter referred to as 5ADF mode) and perform copying (one page is copied for one document). If you do this), the original will be ejected before the copy paper is ejected, and the original will precede the transfer paper.The amount of advance will be even greater if a sorter, etc. is connected to the main unit.In this case, the original will be ejected before the copy paper is ejected, and the original will precede the transfer paper. If a paper jam becomes permanent, even though the original is ejected, the transfer paper after the jammed paper is not ejected and becomes invalid, so it is necessary to recopy that amount.When recopying It is necessary to sequentially reset the document to the exposure position, and conventionally, the automatic document feeder was automatically set to the 5AI3F mode and the document was re-sent.

However, in this copying machine with an automatic document feeder, the original is reset in the S A DF mode, which is more inconvenient than when the original is reset in the ADF mode. There may also be times when you want to reset the original in the pressure plate mode.

(Objective) It is an object of the present invention to provide an Enoki photolith with an automatic document feeder that can reset a document in either ADF mode or pressure plate mode.

(Structure) The present invention will be invented based on Examples with reference to the following box 1.

FIG. 1 shows an embodiment of Yumei Moto.

The automatic document feeder 1 is pivotally mounted on the upper part of the main body 2.
is well known. In the pressure plate mode, the automatic document feeder 1 does not transport the document but is used as a pressure plate. When a document is placed on the document table 3 in the automatic document feeder l, the document set sensor 4 detects the document and turns on. In ADF mode, this state becomes a standby state.

At this time, when the paper feed No. IJ comes from the main body L, a motor (not shown) rotates, the 11ft belt 5, the pull-out roller 7, and the conveyor belt 8 rotate, and the document is conveyed by the separation belt 5, and the document is transferred by the separation blade 6. Only one piece should be separated.

This document is conveyed onto a transparent plate 9 of the main building 2 by a pull-out roller 7 and a conveyor belt 8, and after the trailing edge passes a paper feed sensor 1o, it is stopped at an exposure position on the transparent plate 9. Main body 2
The conveyor belt 8 and the discharge roller 11 are activated by the paper discharge signal from the
is rotated by a transport motor, and the document on the transparent plate 9 is ejected to the ejection tray 12. At this time, the ejection sensor 13 exposes the original to be ejected, and the jam of the original is detected from the detection signal trap. Here, the separation belt 5 is driven by a pheasant motor.

FIG. 2 shows a control circuit of the automatic document feeder l in this embodiment. 1-chip microcomputer (87
49/8049) 14 is the document set sensor 4. Signals from the paper feed sensor 10, the discharge sensor 13, etc. are taken in, and the signals are sent via the expander (8243) 15. Outputs data and control signals to clutch CL, etc. A read-only memory (8755/8355) l'8 with a human output port is connected to the microcomputer 14 in the housing, and signals are exchanged with the main body 2 via a copy interface 19.

The microcomputer 14 operates according to a program in a read-only memory, and FIG. 3 shows a part of its main routine (pulse count routine etc. are omitted). That is, the main routine checks the main body jam, paper feed command check, paper discharge command check, and first copy paper start check.

Final copy paper discharge check, paper feed JOB check.

Performs paper discharge JOB check, modoshi mode check, data out, etc.

FIG. 4 shows the main body jam check routine. In this routine, the microcomputer 14 checks the main body 2.
When a transfer paper jam occurs in the main body 2 by checking the transfer paper jam detection signal from the main body 2, the contents of the ecobee counter are checked. This copy counter counts the number of originals to be recopied, and its contents are 2
In the above case, the sign "-" is displayed at the 1o position of the two-digit display 17, and at the same time, the copy counter "a" is displayed at the 1st position of the display 170. Here, even if a sorter is connected to the main body 2, the contents of the copy counter will only reach 4 at maximum. Also, set the modoshi mode flag (F) to set the modoshi mode (a mode in which the original is reset for recopying), and when the original is being transported or there is an original on transparent #i, 9. In order to eject the original, the transport motor M2 is rotated by 1500P, thereby rotating the transport belt 8 and the ejection roller 11. From the start of document transport to the completion of ejection, if the originals are normally ejected, which would be about 1300 pages, it will be left as is.
If the original is not ejected normally, the process jumps to the original jam routine. The method of determining whether a document is being ejected normally is to count up the count-up when the document starts to be conveyed, and then check the ejection sensor 1 at the rear edge of the document.
Using a counter that counts every three passes, if the counter is ψ after the conveyance motor M2 has rotated for the above-mentioned 1500 P, the original is ejected normally, and if it is not ψ, it is assumed that the original is jammed.

FIG. 5 shows a paper feed command check routine.

In the main unit 2 (when the print switch is turned on by the user and copying operation 2 is performed, in ADF mode, a paper feed command is issued to set the original at the exposure position, but the microcomputer 141 issues this paper feed command in ADF mode. If you receive it, please press the document center sensor 4 in ADF mode.
is turned on and a paper feed command is received, in modoshi mode, if the document sensor off F is not 1, it will remain in the cabinet, and if the document sensor off F is 1, it will be a paper feed job.If the document sensor off F is 1, it will be a paper feed job. Set 1 on the counter and feed paper JO
When the B counter is not ψ, the paper feeding job is progressing, so leave it as is. When not in motor mode, if the paper feed JOB run l is ψ, set the paper feed JOB counter to 1.

FIG. 6 +-z tlt shows the paper instruction check routine. In the ADF mode, the main body 2 issues a paper ejection command after copying (exposure) a set number of originals at the exposure position.

When the microcomputer 14 receives this ejection command in the ADF mode, or when the document set sensor 4 turns on and receives the ejection command in the 8ADF mode, it starts the paper ejection job.
If the counter is ψ, 1 is set in this discharge JOB counter.

Figure 7) shows the start check routine for the first sheet of copy paper. When the main body 2 copies the document set in the exposure position onto transfer paper, the transfer paper is the paper feeder. A first sheet start signal is output when paper is fed starting from. The microcomputer 14) does not accept the first sheet start signal when the mode mode F is 1, and increments the copy counter when the mode mode F is ψ. In this case, the counter UPF is used as the erroneous count prevention flag.

FIG. 8 shows the final copy paper discharge check routine. When making the final copy of the original set in the exposure position in Honjin 2 onto transfer paper, the transfer paper must be ejected from Book 1 and Book 2. (Book) If a sorter is connected to Book 2, the transfer -4 (may be when the paper is ejected into the sorter bin)
1: Body 2) Distinguish it and output a copy paper ejection signal. When the microcomputer 14 receives the minimum copy paper ejection signal, it causes the copy counter to count down.

In this case as well, the count DOW is used as a flag to prevent false counting.
Use NF.

FIG. 9 shows the paper feed JOB check routine.

In this routine, advance the paper feed job according to the contents of the paper feed JOB counter. For example, the paper feed JOB counter is 1.
When , set the stripe separation morph flag MIF and clutch flag CLF and set 2 in the paper feed JOB column l, and when the paper feed JOB column mechanism becomes -2, reset the clutch flag CLF at a predetermined timing and start the paper feed JOB. Set 3 yen on the counter.
B The counter is cleared at the end of the paper feed job.

Figure 10 shows the check routine for 't@sheet discharge JOB.

In this routine, the paper ejection job is advanced according to the contents of the paper ejection JOB counter.
-1, the transport morph flag M2F is set and 2 is set in the paper discharge JOB counter. II' paper JtJB
The counter is cleared at the end of the paper discharge job.

Figure 11 1↓ shows the date out routine. This routine outputs the contents of each flag to the motor.

Turn on and off parts such as clutches, and control the separation motor by ATR or Kaoseki to A-1A/F, output the clutch flag CLF, and turn off.

By controlling the clutch for driving the luau roller 7 and outputting the conveyance motor flag M2F, the conveyance motor M2
control.

FIG. 12 shows the mode check routine. In this routine, when mode mode F is set to ψ, leave it as is, and when mode mode F is 1, if the copy counter is not ψ, display its contents on the 1st position of display 17, and when document set sensor 4 is turned off. Set document sensor off F. Further, if the copy counter is ψ, the mode mode F and the original sensor off F are reset to stop displaying "-" at the 10th position on the display.

Pressure plate mode at the control section of the automatic document feeder.

5ADF mode, AuI!゛ mode can be set to (・Shelter force・), and normally the original is set and copied in the same way as before. In the pressure plate mode, the automatic document feeder does not operate and is used as a pressure plate. , -F
When the print switch is turned on, the tiF- copies the set number of copies of the original at the exposure position and then stops. In the 5ADF mode, originals are set one sheet at a time on the original platen 3, the originals are conveyed to the exposure position by the automatic document feeder, and the main body 2 copies a set number of sheets. In the ADF mode, when the desired number of original documents are placed on the original platen 3 and the print switch is turned on, the originals are sequentially set at the exposure position by the III-III original transport device 1, and the main body 2 copies the set number of originals.

Therefore, the modon mode generally occurs when one cutting and one copying is performed in the 5ADF mode or the ADF mode. When the mode is set, as is clear from the above explanation, if the document center sensor 4 is turned on from off even once, that is, if a document to be recopied is set on the document table 3, a transfer paper jam will occur in the main body. Set the original on the original platen j in the original transport mode at the exposure position. Furthermore, if the document center sensor 4 is not turned off even once after entering the modoshi mode, the document sensor off F remains at 00, so as is clear from Figure 5, the paper feed JOB counter will not advance and the document will not be fed. Press to enter pressure plate mode.

Incidentally, in the above embodiment, the 5ADF mode may be eliminated and the Jikagen-Oke transporting device @1 may be used in either the A D l'' mode or the pressure plate mode.

(Effect) As mentioned above, according to the non-invention, the set within the first height of the original ADF
It is convenient because it can be done in the pressure plate mode, and it is also possible to reset the original in the pressure plate mode.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a part of an embodiment of the present invention, FIG. 2 is a block diagram showing a control circuit of the same embodiment, and FIGS.
FIG. 2 is a flowchart showing -S of the main routine and its respective parts in the same embodiment. 4...Hara, striped set sensor, 14...Microcomputer. RII most υ口■q shaku ((1) (1; z) (G)

Claims (1)

[Claims] There is a document set sensor that detects whether there is a document on the document table of the automatic document feeder, and when it is necessary to re-copy after a transfer paper jam occurs, the document set sensor must be turned off at least once and then turned on. control means that sets the automatic document feeder to automatic document feed mode when the print switch is turned on, and sets the automatic document feeder to press plate mode when the print switch is turned on without the document set sensor being turned off even once; Copying machine with automatic document feeder.