JPH0138307B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control device for a copying machine with a sorter, and in particular, in a case where a jam occurs in a transfer paper in the sorter, the control device ensures that the next transfer paper is ejected. By preventing the next transfer paper from remaining inside the machine or causing double jams, it eliminates unnecessary jam removal work and reduces the number of miscopied copies. It is possible to display which bin should have been originally discharged.

In conventional copying machines with a sorter, a sorter "BIN IN" signal is generated by detecting whether or not transfer paper has been ejected into a bin in the sorter, and when a jam occurs, the presence or absence of this sorter "BIN IN" signal is detected. The system detects this, and if there is no jam, the main body of the copying machine is stopped, the number of copies is corrected, and a jam is displayed at the same time. In the above-mentioned conventional copying machine with a sorter, when the next transfer paper is placed on the main body side, the copying machine main body stops, so the transfer paper remains inside the copying machine main body, and If the paper is in the sorter, the conveyor belt in the sorter is driven, so the paper is conveyed to the jammed portion, resulting in a double jam. Therefore, the next transfer paper after the jammed transfer paper is jammed even if it is a normal copy, and the work of removing the jammed transfer paper from inside the machine is two-fold.
Furthermore, even if the next transfer paper is a normal copy, it cannot be used, resulting in a waste of copy paper.

The present invention has been made to solve the above-mentioned drawbacks of the prior art, and will be described below with reference to the drawings.

In FIG. 1, the transfer paper sent out from the copying machine main body 1 is conveyed in the sorter 2 by the conveyor belt 3 as shown by the dotted line A, and sent to bins 4 ₁ to 4 ₁₀ . A transfer paper detection device comprising a light emitting section 5 and a light receiving section 6 is provided at the entrance of the bins 4 ₁ to 4 ₁₀ to detect whether or not the transfer paper has reliably entered the bins. In addition, in the embodiment shown in _FIG .
In the illustrated case, _{a fifth bin 45 contains} transfer paper. Bin 4 ₁ to 4 ₁₀
There are sheet number indicators 7 ₁ to 7 corresponding to each bin near the
₁₀ are provided, and the number of sheets of transfer paper contained in each bin 4 ₁ -4 ₁₀ is displayed by the display devices 7 ₁ -7 ₁₀ , respectively. In FIG. 1, if the transfer paper is now jammed in the sorter for some reason, the light receiving section 6 detects that the jam has occurred and generates a jam signal, and this jam signal is used to detect the jam. The tray 8 is moved from the dotted line position to the solid line position and set on the transfer paper conveyance path, and the jammed transfer paper is placed in this tray 8.

FIG. 2 is a diagram showing an example of an electric circuit for setting the tray 8 on the transfer paper conveyance path as described above. In the figure, 10 is a comparison circuit, 11 is a control circuit, and 1
2 is a drive circuit, 13 is a solenoid, and as mentioned above, when a jam occurs in the sorter, the light receiving part 6
resistance changes, and the control circuit 11 generates a jam signal. This jam signal turns on the transistor Q and operates the solenoid 13, thereby setting the tray 8 on the transfer paper conveyance path.

As mentioned above, if a jam occurs in the sorter, by activating the solenoid 13 and setting the tray 8 on the transfer paper conveyance path, the next transfer paper will enter the tray 8, and if it is normal, You can use it as is, and you can see which bin the jammed transfer paper and the transfer paper on the tray should have originally been placed in by the sheet count indicator located near each bin. I can do it.

FIG. 3 is a flowchart for explaining the operation of the control circuit 11 shown in FIG.
Now, assuming that the transfer paper is conveyed normally from the copying machine main body 1, the transfer paper reaches the detection element consisting of the light emitting part 5 and the light receiving part 6 located at the bin entrance in the sorter 2, and the light receiving part 6 is PIB (Paper In Bin)
A signal is generated to detect that the transfer paper has entered the detection elements of the light emitting section 5 and the light receiving section 6. If the transfer paper does not reach the detection element, the PIB signal will not be output from the detection element even if the number of pulses counted from a certain timing in the copying machine reaches 300 pulses, and the transfer paper will not reach the detection element. This means that a jam has occurred, and in this case, the main body jam subroutine is entered and appropriate processing is performed. When the transfer paper is transported normally and enters the detection element, the PIB signal becomes "0" (low level), so at this point the pulse count is set to 0, and when it reaches 30 pulses, the PIB signal becomes "0" (low level). 1” (high level),
It is determined that the transfer paper has entered the sorter normally, and the counter for the number of sheets entered into the bin is incremented by 1. In this case, the PIB signal is still “0” (low level)
If so, it means that the transfer paper has not come out from the detection element and a jam has occurred. In this case, as described above, a jam signal is generated and the solenoid 13 is activated.
is activated to load the next transfer paper into tray 8.

As is clear from the above description, according to the present invention, when a jam occurs in the transfer paper in the sorter, the next transfer paper can be reliably ejected, so that the next transfer paper does not get stuck inside the machine. remain in, 2
It doesn't cause any serious jams,
Therefore, unnecessary jam removal work is eliminated.
At the same time, the number of erroneous copies can be reduced.
Another advantage is that it is possible to know from the number of sheets displayed on the display which bin the jammed transfer paper and the jammed transfer paper should have originally been discharged into.

[Brief explanation of drawings]

FIG. 1 is a block diagram of main parts for explaining an embodiment of the present invention, FIG. 2 is a diagram showing an example of an electric circuit used for carrying out the present invention, and FIG. This is a flowchart for explaining the operation of the control circuit 11 shown in FIG. 1... Copying machine body, 2... Sorter, 3... Belt, 4 ₁ to 4 ₁₀ ... Bin, 5... Light emitting element, 6
... Light receiving element, 7 ₁ to 7 ₁₀ ... Number of sheets display, 8...
...Tray, 10...Comparison circuit, 11...Control circuit, 12...Drive circuit, 13...Solenoid.

Claims (1)

[Claims] 1. In a copying machine with a sorter having a function of sequentially discharging transfer paper into each bin, a detection means for detecting a jam in transfer paper being conveyed within the sorter;
It is equipped with a display means for displaying the ejection status of the transfer paper in each bin, and a control device for controlling the conveyance of the next transfer paper based on the signal from the detection means, so that the transfer paper is not ejected to a predetermined bin. When a jam occurs in the sorter, the next transfer paper is discharged to a tray that is a paper input section of the sorter and is different from a bin provided upstream of the first bin. A control device for a copying machine with a sorter.