JPH0389233A - Method for setting document in carrier sheet and image forming device used for the same - Google Patents

Abstract

PURPOSE:To eliminate the need for a wide space for document setting by supplying only the carrier sheet to a document feeder after a document setting key is turned on for the 1st time, setting the document in the carrier sheet when the sheet is clamped by a carrying means and stops, and then turning on the set key again. CONSTITUTION:The document setting key 34 is turned on. The empty carrier sheet 28 is supplied from the document insertion part 27 of the document feeder 21 and intruded as shown by an arrow X. The front end part 28 of the sheet 28 abuts on the actuator of a 1st switch SW1, which is turned on. When the switch SW1 is turned on, a motor which is not shown in a figure rotates to rotate a document feeding roller 24 forward for a specific time as shown by an arrow L and when the head end part 28A of the sheet 28 is clamped by the document feeding roller 24 to specific length, the motor stops and the document feeding roller stops, so that the sheet 28 stops temporarily while clamped by the roller 24. The upper sheet member 30 of the sheet 28 is lifted and the tail end side of the sheet 28 is released; and the document G is inserted into the sheet 28 from the tail end side and supported therebetween the sheet 28 in a specific state, thus setting the document.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of setting a document onto a carrier sheet and an image forming apparatus used in the method.

[Conventional technology]

2. Description of the Related Art One type of copying machine is a moving original copying machine that moves an original during reading (exposure) of the original. This document moving copying machine operates in a normal copy mode, in which the document is fed from the document insertion section of the document feeder, exposed to a predetermined amount, and made one copy. A copy mode in which multiple copies are made (hereinafter referred to as multi-copy mode) can be set as an alternative.

In the multi-copy mode described above, if a carrier sheet is used to protect the document from damage and copies are made with the document stored in the carrier sheet, the document is set on the carrier sheet and placed in the specified position. Conventionally, this has been done on a table that allows the carrier sheet to be sufficiently spread out.

[Invention tries to solve! II! I) However,
According to the above-mentioned document setting method, as the size of the document increases, a correspondingly larger carrier sheet is required. Therefore, it is necessary to prepare a large table that can sufficiently spread out the large carrier sheet, and also Undesirable problems arise, such as the need for space.

The present invention has been made with the above-mentioned considerations in mind, and an object of the present invention is to provide a method for easily setting a document on a carrier sheet even without a large table or a large space, and a method thereof. An object of the present invention is to provide an image forming apparatus for use in the present invention.

[Means to solve the problem]

In order to achieve the above-mentioned object, the method for setting a document on a carrier sheet according to the present invention includes a method for setting a document on a carrier sheet, which includes:
It includes a document reading section and a document conveyance device having a conveying means that rotates in both forward and reverse directions to convey the document and a carrier sheet toward the document reading section, and the document conveying device rotates in both forward and reverse directions to convey the document and the carrier sheet toward the document reading section. In an image forming apparatus that is capable of reading a document, after turning on a document set key provided at an appropriate position on the main body of the image forming apparatus, an empty carrier sheet is fed from the document insertion section of the document conveying device, and the document is read. By turning on a document detection switch in which the leading edge of the carrier sheet is provided upstream of the document reading unit, the conveying means is rotated in the normal direction to advance the carrier sheet by a predetermined distance, thereby detecting the leading edge of the carrier sheet. When the side is gripped and stopped by the conveyance means, insert the original from the rear end side of the carrier sheet and set the original by sandwiching it between the carrier sheets in a predetermined state, and then press the original set key again. By turning on, the conveying means is rotated in the normal direction again to convey the document together with the carrier sheet toward the document reading section.

Further, the image forming apparatus according to the present invention includes, on the upper surface of the main body of the image forming apparatus, a document reading section and a conveying means that rotates in either forward or reverse directions for conveying the document and the carrier sheet toward the document reading section. and a document conveyance device having
In an image-forming Fli device that is capable of reading a document while it is held between carrier sheets, there is a document set key provided at a proper location on the main body of the image forming device, and a document set key that is turned on. A document detection switch provided upstream of the document reading section that is turned on by contact with the leading end of the document or carrier sheet that is later supplied from the document insertion section of the document conveyance device; a control unit that rotates the conveyance means in the normal direction by causing the conveyance means to rotate forward, drives the conveyance means a predetermined distance so that the leading end side of the document or carrier sheet is gripped by the conveyance means, and then stops the conveyance means; When the control section turns on the document set key again, the conveyance means is rotated in the normal direction again to convey the document or the carrier sheet toward the document reading section.

[Effect]

According to the present invention, in copying using a carrier sheet, only the carrier sheet is supplied to the document conveying device after the first ON operation of the document set key, and the carrier sheet is gripped by the conveying means of the document conveying device and stopped. When this happens, I set the original in the carrier sheet and then turn on the original set key again.
Since the document conveying device operates reliably and the document is set in the carrier sheet while being conveyed to the reading section, the document can be easily set even if there is not a large space.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

1 to 3 show a document moving type copying machine as an example of an image forming apparatus to which the present invention is applied.

First, in FIG. 1, 1 is a copying machine main body, which is placed on the upper surface of a deck 2 which also serves as a copying machine mounting table. Inside the copying machine main body 1, a photoreceptor 3 is installed horizontally so as to rotate in the direction of arrow R.A charging device 4 is installed around the photoreceptor 3.
．． Developing device5. Transfer device6. Paper separation device7. Cleaning devices 8 and the like are arranged in a predetermined order. and,
A paper feed section IO into which a paper feed cassette 9 containing copy paper can be removably loaded is formed below the copying machine main body 1, and a paper feed path 1 from this paper feed section 10 to the transfer device 6 is formed.
1 has a paper feed roller 12. Registration rollers 13°, conveyance rollers 14, etc. are provided. Further, a paper transport path 15 is provided on the downstream side of the paper separation device 7 in the transport direction. Fixing device 16. A paper discharge roller 17 is provided. Reference numeral 1B denotes a paper ejection section that ejects the paper after fixing. Further, reference numeral 19 is a paper discharge tray for receiving paper discharged from the paper discharge section 18.

On the top surface of the copying machine main body 1, there is a document reading section (document exposure section) 20, and a document transport device 2 that conveys a document and a carrier sheet, which will be described later, toward the document reading section 20.
1 is formed. That is, 22 is a contact glass provided on the top surface of the copying machine main body 1, and an exposure device 23 consisting of a light source and a convergent light transmitting body such as a SELFOC lens (trade name) is provided below the contact glass Φ. This constitutes a document reading section 20. Further, the document conveyance device 21 is provided substantially above the document reading section 20, and includes document feed rollers 24, 25, document pressing rollers 26, etc. as conveyance means. The document feed rollers 24 and 25 are rotationally driven by a motor (not shown), and rotate normally so as to convey the document or carrier sheet supplied from the document insertion section 27 of the document conveyance device 21 toward the document reading section 20. Or, reverse the transport so that it is transported in the opposite direction to the above direction.

Note that the configuration up to this point is no different from conventional copying machines of this type.

As shown in FIGS. 2 and 3, on the top surface of the copying machine main body 1, there is a document detection switch (hereinafter referred to as a first document detection switch) located between the document insertion section 27 and the upstream document feed roller 24. SW, the tip timing switch (hereinafter referred to as the second switch) located upstream of the document reading section 20
SW8 (referred to as a switch) is provided. Then, the first switch SWI is set to the document G or the carrier sheet 28.
The second switch SWt detects the insertion of the document and drives a motor (not shown), and the second switch SWt detects the movement of the document within the document feeder 21 and is installed in the paper feed section 10. Document feed rollers 24 and 25 are arranged in relation to the paper detector so as to match the insertion timing of the document G or the carrier sheet 28 with the feeding timing of the copy paper.
Therefore, in the normal copy mode, the document is temporarily stopped at the document reading section 20 by the second switch SW8, and then transferred to the document feeding roller 24.
25 rotates in the normal direction, the document is sent to the downstream side of the document reading section 20, and in the multi-copy mode, the document after the document reading is completed is reversely conveyed to the document insertion section 27 side by the reverse rotation of the document feed rollers 24 and 25. It is.

In FIGS. 2 and 3, reference numeral 28 denotes a carrier sheet, which includes a transparent lower sheet member 29 that contacts and holds the surface to be read (in the illustrated example, the bottom surface) of the document G, and a carrier sheet that contacts the surface of the document G on the opposite side. An upper sheet member 30 (this sheet member does not necessarily have to be transparent) that abuts and covers this is joined at the leading end in the transport direction, and the rear end in the transport direction can be opened and closed. 31 is a connecting portion.

Reference numeral 32 denotes an operation/display section provided on the top surface of the copying machine body, which includes various function keys such as a numeric keypad and a copy key, as well as a continuous copy key 33 for setting a multi-copy mode, and a continuous copy key 33 for transporting the original G on a carrier sheet 28. A document setting key 34 for setting the document in the carrier sheet 28 is provided in the middle.

Reference numeral 35 denotes a control unit that is provided in the copying machine main body 1 and performs comprehensive control of the copying machine main body 1, and controls each part in the copying machine main body 1, each part of the document transport device W21, and the operation/display part 32. It is connected. Then, after the output signal when the document set key 34 is turned on is input to the control section 35, the first end is brought into contact with the leading end 28A of the carrier sheet 28 supplied from the document insertion section 27 of the document conveyance device 21. switch SW
When , is turned on, the document feed roller 24 rotates normally, and the carrier sheet 28 is moved forward by a predetermined distance such that the leading end side of the carrier sheet 28 is gripped.

Next, the operation of the moving document copying machine having the above configuration will be explained with reference to the flowchart shown in FIG. 4 and the operation diagram shown in FIG. 5.

For example, if the document G is relatively large and it is difficult to set it on the carrier sheet 28 in advance and requires a large space, first, a selection is made as to whether or not to perform multi-copying (step S1). When the continuous copy key 33 is turned on, the mode becomes multi-copy mode (step S2), and when it is not turned on, the mode becomes a single copy mode.

Next, turn on the original set key 34 (step S3)
Then, the empty carrier sheet 28 is transferred to the document conveying device 21.
The carrier sheet 28 is supplied from the original insertion section 27 and pushed in the direction shown by the arrow X in FIG. This is turned on (step S4).

In this way, when the first switch SW1 is turned on, a motor (not shown) rotates in a predetermined direction, and the document feed roller 24 rotates normally in the direction of the arrow in FIG. After the carrier sheet 28 is rolled, when the leading end 28A of the carrier sheet 28 is bitten by the document feed roller 24 by a predetermined length, the motor stops and the document feed roller 24 stops. The object is temporarily stopped in a state where it is held by (step S5).

Therefore, as shown in the same figure (C), the carrier sheet 28
Lift the upper sheet member 30 upward to open the rear end side of the carrier sheet 28, insert the document G into the carrier sheet 28 from this rear end side, and transfer it to the carrier sheet 2.
8 and set the original in a predetermined state (step S6).

Thereafter, when the document set key 34 is turned on again (step S7), the motor rotates in the predetermined direction again (step S8), and the document feed roller 24 rotates in the normal direction again. advances further. This forward movement causes the leading end 2 of the carrier sheet 28 to
8A comes into contact with the actuator of the second switch SW2 to turn it on (Step S9), and the motor rotates for a predetermined time and then stops (Step 510), but at this time, the document G arrives at the document reading section 20. are doing.

Here, predetermined copying starts in synchronization with the copy paper side, and if the continuous copy key 33 is turned on in step S1 and the continuous copy flag is turned on (step 32), continuous copying is performed (step 5l
l).

On the other hand, if the document G is not so large that it is not difficult to set it on the carrier sheet 28 in advance and does not require a large space, do not turn on the document set key 34 (step 33). The carrier sheet 28 with the original G set in a predetermined state is transferred to the original transport device 1.
All you have to do is feed it from the original insertion section 27 of F21 and push it in. If the continuous copy key is not turned on in step S1, then the leading edge 28A of the carrier sheet 28
turns on the first switch SW1 (step 512
), the motor is rotated in a predetermined direction (step S8>, and copying is performed in the same manner as above.

In addition, in the above-mentioned embodiment, when the original set key 34 is operated and
Although it is provided on the display section 32, if it is located in a location that is easy to operate,
It may also be provided in other suitable locations.

Furthermore, the present invention can be applied not only to the above-mentioned document moving copying machine but also to image forming apparatuses such as facsimile machines.

〔Effect of the invention〕

As explained above, according to the present invention, in copying using a carrier sheet, only the carrier sheet is supplied to the document conveying device after the first ON operation of the document set key, and the carrier sheet is When the document is gripped and stopped by the device's conveyance means, the document is set in the carrier sheet and then the document set key is turned on again. This ensures that the document conveyance device operates reliably and that the document is not transferred to the reading section. Since the document is set in the carrier sheet while it is being transported, the document can be easily set even if there is not a large space.

[Brief explanation of drawings]

1 to 5 show an embodiment of the present invention, FIG. 1 is a longitudinal cross-sectional view of a moving document copying machine as an example of an image forming apparatus according to the present invention, and FIG. 2 is a perspective view thereof. Figure 3 is an enlarged perspective view of the main parts, Figure 4 is a flowchart, Figure 5 (A), (
B) and (C) are operation explanatory diagrams. 1... Image forming apparatus main body (copying machine main body), 20...
Original reading unit, 21... Original transport device, 24.25
. . . Conveyance means (original feed roller), 27 . . . Original insertion portion, 28 . . . Carrier sheet, 28A .
...Original detection switch. 1... Image forming device body (?! Manuscript body 20...
Original reading section 21... Original transport device 4 25... Transport means (original feeding roller) Fig. 1

Claims (2)

[Claims] (1) At the top of the image forming apparatus main body, there is a document reading section,
A document conveying device having a conveying means that rotates in either forward or reverse directions to convey the document and the carrier sheet toward the document reading section, and the document can be read with the document sandwiched between the carrier sheets. In the image forming apparatus configured as above, after turning on a document set key provided at a proper position on the main body of the image forming apparatus, an empty carrier sheet is fed from the document insertion section of the document transporting device, and the leading edge of the carrier sheet is turns on a document detection switch provided upstream of the document reading section, the conveyance means is rotated in the normal direction to advance the carrier sheet by a predetermined distance, and the leading edge side of the carrier sheet is moved forward by the conveyance means. When the original is gripped and stopped, the original is inserted from the rear end side of the carrier sheet, the original is held in a predetermined state by the carrier sheet, and the original is set, and then the original set key is turned on again. A method for setting a document on a carrier sheet, characterized in that the conveying means is rotated normally again to convey the document together with the carrier sheet toward the document reading section. (2) A document reading section on the top surface of the image forming apparatus main body;
A document conveying device having a conveying means that rotates in both forward and reverse directions for conveying the document and the carrier sheet toward the document reading section, and is capable of reading the document with the document sandwiched between the carrier sheets. In the image forming apparatus, a document set key provided at a proper position on the main body of the image forming apparatus, and a document or a carrier sheet that is fed from the document insertion section of the document conveying device after the document set key is turned on. A document detection switch provided upstream of the document reading section is turned on when the leading edge comes into contact with the document. By turning on the document detection switch, the conveying means is rotated in the normal direction, and the document or carrier sheet is rotated in the normal direction. a control unit that drives the conveying means by a predetermined distance so that the leading end side is gripped by the conveying means and stops the driving means, and when the control unit turns on the document set key again, the conveying means The image forming apparatus is characterized in that the document or carrier sheet is conveyed toward the document reading section by rotating normally again.