JPH05323723A - Long length document copying device - Google Patents

Abstract

PURPOSE:To carry out continuous copying process by having the document ran over the document platen, exposed and scanned in a state where a document platen and an optical system is stopped. CONSTITUTION:When copying process of the multiple number of pieces is carried out continually of the long length document contained in a carrier sheet 11, the long length document contained in a carrier sheet 11 is made to run over the document platen along with the carrier sheet 11 and expossed and scanned utilizing a device such as a pin tractor 8 and when the exposure scanning is completed, a driving system such as the pin tractor 8 is released on the carrier sheet 11. Following, the document is returned to the document platen along with the carrier sheet 11 utilizing an automatic document feeding mechanism and the long length copying is continuously carried out while repeating such a reciprocating action of the document. Therefore, by continuously reciprocating, the automatic and continuous copying process can be carried out on the long size document which cannot be contained in the document platen without removing the carrier sheet 11 containing the long length document from the pin tractor 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a copying apparatus which can copy a document by moving the document on the platen and exposing and scanning the platen while the platen and the optical system are stationary.

[0002]

2. Description of the Related Art The copying apparatus 1 shown in FIG. 6 enables copying processing of a long original which does not fit on the original plate of the copying apparatus 1 in parallel with the copying processing of a normal size. It is a thing. In such a copying apparatus 1, as shown in FIG. 6, the manuscript cover 2 is opened (2 ') as shown by the chain double-dashed line, and the manuscript is set on the manuscript table under the manuscript cover 2 and then the manuscript is set. The so-called manual scanning for closing the cover 2 to perform copy processing and the manuscripts set on the manuscript tray 3 are driven one by one by driving the manuscript supply / conveyance unit 4 and the manuscript conveyance belt 5 provided on the back surface of the manuscript cover 2. The optical system is moved relative to the original document and exposed and scanned while being fed to the original platen and stopped at a predetermined position on the original platen, and the original document after the exposure scan is transferred to the original document conveyance belt 5 and the original document ejection conveyance section. A so-called automatic document feeding function in which the document is discharged to the document discharge tray 7 by driving 6 is released by opening the document feeding / conveying unit 4 as shown in FIG. pin The lactator 8 is provided with a copy scanning function for a long original for copying a continuous form paper 9 such as a computer form, which is an example of a long original, while being sandwiched between the original cover 2 and the original table. There is. When a long original other than the continuous form paper 9 is copied by the copying apparatus 1 as described above, as shown in FIG.
Holes 1 for engaging the pin tractor 8 on both left and right sides
The original document D is stored in a transparent carrier sheet 11 on which 0, 10, ... Are formed, and the carrier sheet 11 is sandwiched between pin tractors 8 and moved in the direction of arrow X to perform exposure scanning.

[0003]

In the above-mentioned conventional copying apparatus, since a long original is copied using the carrier sheet 11 as described above, the carrier sheet is used every time one copy operation is performed on one original. 11 is removed from the pin tractor 8, the document D is set again at the exposure position on the document table shown in FIG. 4, and the second copy processing is performed after the setting to the pin tractor 8 is performed again. It has been extremely complicated to perform a copy process on a single document. Therefore, the object of the present invention is to continuously reciprocate the carrier sheet accommodating the long document as described above without removing it from the pin tractor, so that the long document that does not fit in the document table can be conveyed. An object of the present invention is to provide an apparatus capable of automatic and continuous copy processing.

[0004]

In order to achieve the above object, the present invention provides a method of exposing and scanning an original while exposing the original by moving an optical system relative to the original while the original is fixed on the original table. A first means for carrying out a first exposure scan for transporting a scanned original from the original table, and a long original stored in a transparent carrier sheet with the original table and the optical system stationary. In a long document copying apparatus provided with a second means for performing a second exposure scanning in which the entire document is moved on the document table and is exposed and scanned, a carrier is formed by using the second means when the long document is exposed and scanned. The original is moved along with the sheet for exposure scanning, and when the exposure scanning is completed, the second means is released, and the original is returned to the original table together with the carrier sheet by using the original conveying function of the first means. Reciprocating manuscript It is configured as a long original copy apparatus characterized by continuous copying long original repeat work.

[0005]

Since the present invention is constructed as described above, in the case where a long original stored in a carrier sheet is continuously copied on a plurality of sheets, a carrier such as a pin tractor is used. The long original stored in the sheet together with the carrier sheet is made to travel on the original table for exposure scanning,
When the exposure scanning is completed, the drive system such as the pin tractor for the carrier sheet is released, and then the original is returned together with the carrier sheet to the original table using the automatic original feeding function, and the reciprocating operation of the original as described above is performed. While repeating the above, a long original is continuously copied. For this reason, the carrier sheet has an extra length that reaches the pin tractor at the leading edge of the original when the original is in the exposure position and the trailing edge is on the original when the original is pulled out from the original table when the original is in the exposure position. Need to have extra length to remain in.

[0006]

Embodiments of the present invention will now be described with reference to the accompanying drawings.
Detailed embodiments will be described to provide an understanding of the present invention.
It FIG. 1 shows a long original document according to an embodiment of the present invention.
When starting a copy process for a long original using the P
2 is a perspective view showing the state of FIG.
Fig. 3, Fig. 3 uses the device shown in the control block diagram above.
Flow chart showing the processing procedure when copying a long original.
-Chart, Figure 4 shows the original in the state shown in Figure 1 diagonally above
FIG. 5 is a perspective view showing the state viewed from above, and FIG.
Copy processing mode for long originals using the scanner and carrier sheet.
7 is a flowchart showing a processing procedure for switching between
It Copier 1 in this embodiment_aThe components of
With respect to the hardware of the conventional copying apparatus 1 shown in FIG.
Almost the same, as shown in FIG.
The original cover 2 and its
Insert the carrier sheet 11 between it and the lower platen, and
Pull out the carrier sheet 11 using the pin tractor 8.
Stored in the carrier sheet 11 using the optical system in the device.
The exposed document is exposed and scanned. This copy device 1_aAbout
The difference from the conventional copying machine 1 is that
The discharge part opening / closing detection switch 12 for detecting the opening / closing of the sending part 6 is
A point provided near the rotation axis of the document discharge / conveyance unit 6
And various functions described below are added as software.
That is. This copying apparatus 1 described below_aProcessing
Copier 1 for performing the procedure _aConfigure the control unit of
To the CPU to be connected via the I / O port as shown in FIG.
Pin tractor motor P for driving the pin tractor 8
M, pin tractor clutch PC, the original conveying belt 5
Conveyor belt motor BM for driving
Turns on / off the driving force from the document BM to the document conveyance belt 5.
Transport belt clutch BC Discharge part opening / closing detection switch
12 and the carrier sheet provided below the document table
The leading and trailing edges of the documents stored in 11 pass through the edges of the document table.
Document detection sensor DS that detects the timing when there is a passage
Are connected.

[0007] Subsequently, the copying apparatus 1 _a according to this embodiment
A procedure for performing copy processing of a long original will be described below. Note that the following processing procedure is described in the flowcharts shown in FIGS. 3 and 5, and the processing procedure is S1,
It is indicated by S2, .... When the power is turned on, it is determined whether the copy button is pressed, that is, whether the copy button is on (S1). When the copy button is pressed, the current long original copy mode, that is, LDC mode (Long Docum)
It is determined whether or not it is the ent copy) mode (S2).
This determination may be performed by operating the mode changeover switch provided in the operation unit 13 (FIG. 2). However, as a method not using such a mode changeover switch, as shown in FIG. Whether or not the LDC mode may be determined by detecting whether the discharge section opening / closing detection switch 12 that is open, that is, whether the document discharge / conveyance section 6 is released, is on or off. If the switch 12 is off, it can be determined that the document discharge / conveyance unit 6 is released and the LDC mode is set. Depending on whether or not the document discharge / conveyance unit 6 is released as described above, the LD
The reason why it is judged that the mode is the C mode, that is, the copy processing mode for a long original using the carrier sheet 11 is only for the discharge processing of the original when the copy processing for a long original using the carrier sheet 11 is performed. This is because the part 6 is opened. As shown in FIG. 6, in the automatic document feeding mode for a document of a normal size, the document discharging / conveying unit 6 is closed together with the document supplying / conveying unit 4 as shown in FIG. 6, and as shown in FIG. Also in the copy processing state of the continuous form paper 9 related to the computer form, the document feeding / conveying unit 4 is open, but the document discharging / conveying unit 6 is closed, and the document discharging / conveying unit 6 is opened in the copying apparatus 1 _a. This is because, as described above, only during the copying process of a long original using the carrier sheet 11. As shown in S2, when it is determined that the copy mode for the long original D using the carrier sheet 11 is determined, the exposure lamp is turned on and the lamp light amount reaches a predetermined value, and then the transfer sheet is transferred. Start feeding (S
3) In addition, the pin tractor motor PM that drives the pin tractor 8 is started (S4), and the pin tractor clutch PC that turns on / off the transmission of the driving force of the pin tractor motor PM to the pin tractor is turned on (S5). ). When the pin tractor motor PM is driven and the pin tractor clutch PC is turned on, the pin tractor 8 starts to rotate, and the carrier sheet 11 is pulled out in the direction of the arrow Y shown in FIG. Then, the exposure scanning of the document D and the transfer of the document image onto the transfer paper are performed. When the document detection sensor DS (FIG. 2) detects the trailing edge of the document D in S6, it is not necessary to feed the document D any more, so the pin tractor clutch PC is turned off in S7, and the pin tractor motor is further processed in S8. P
Turn off M.

Then, in order to return the original D pulled out by the pin tractor 8 to the original original table, the above-mentioned S7
In the state where the pin tractor clutch PC is turned off, the conveyance belt motor BM for driving the original conveyance belt 5 is driven, and the conveyance belt clutch BC is turned on (S
9, S10), while the document conveying belt 5 is in a normal automatic document feeding state, that is, in the state where the document D is fixed on the document table, the optical system is relatively moved with respect to the document D, and the document D is exposed and scanned. The original document D, which has been subjected to the exposure scanning, is conveyed from the original table, that is, the original document is conveyed in the exposure scanning process based on so-called automatic document feeding. In this way, when the original stored in the carrier sheet 11 is pulled back onto the original table, the leading edge of the original D is detected by the original detection sensor DS (S11), and the original D is exposed to the predetermined exposure on the original table. Since it is determined that the position has been reached, the conveyor belt clutch BC is turned off and the conveyor belt motor BM is turned off as shown in S12 and S13. This completes the copy process for one copy of the original D, so that it is determined in S14 whether or not the copy process for the number of copy sets input from the operation unit 13 is completed, and the copy for the set number of copies is completed. If completed, the process ends. If the copy processing for the set number of sheets has not been completed yet, the process returns to S3 to start the exposure processing and execute the copy processing for the second sheet in the same manner as above. By repeating the processing from S3 to S14 in this way, when the processing for the preset number of copies is completed, all the processing is terminated. By applying a pin tractor that holds the carrier sheet during forward movement, it is possible to prevent skewing of the original document during copying, while at the time of backward movement, by applying a conveyor belt, the original document can be returned without bending. ..

[0009]

Since the present invention is configured as described above, it is possible to perform the above operation in a completely automatic state without the need to hang or remove the original stored in the carrier sheet on the pin tractor. The original can be copied continuously.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state when a copy process of a long document is started using a long document copying apparatus according to an embodiment of the present invention.

FIG. 2 is a control block diagram of the apparatus of the above embodiment.

FIG. 3 is a flowchart showing a processing procedure when a long original is copied using the apparatus shown in the control block diagram.

FIG. 4 is a perspective view showing a state in which the document in the state shown in FIG. 1 is viewed obliquely from above.

FIG. 5 is a flowchart showing a processing procedure for switching between a normal copy processing mode and a copy processing mode for a long original using a carrier sheet.

FIG. 6 is a perspective view of a conventional copying apparatus.

7 is a perspective view showing a state in which a continuous form sheet of a computer form is being copied by the copying apparatus shown in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Copying device 2 ... Original document cover 4 ... Original document feeding / conveying unit 5 ... Original document conveying belt 6 ... Original document ejecting / conveying unit 8 ... Pin tractor 11 ... Carrier sheet 1 _a ... Copying device PM ... Pin tractor motor PC ... Pin tractor clutch BM ... Conveyor belt motor BC ... Conveyor belt clutch 12 ... Discharge part opening / closing detection switch DS ... Original detection sensor

Claims (1)

[Claims] 1. A first exposure for exposing and scanning the original by moving an optical system relative to the original while fixing the original on the original table and conveying the original after the exposure scanning from the original table. First means for realizing scanning, and second exposure scanning for exposing and scanning a long original stored in a transparent carrier sheet with the carrier table running on the original table with the original table and optical system stationary In the long document copying apparatus having the second means for realizing the above, the document is moved along with the carrier sheet to be exposed and scanned using the second means at the time of exposure scanning of the long document, and the exposure scanning is completed. At this point, the second means is released, the original is returned to the original table together with the carrier sheet using the original conveying function of the first means, and the reciprocating operation of the original is repeated to continuously copy a long original. Features and Long original copy device.