JPH03184065A - Image forming device with covering and folding function - Google Patents

Abstract

PURPOSE:To make the size of ejected sheets uniform by providing a function control means comparing a detected result from an original size detecting means with a size designated with a cover sheet designating means and selecting the presence or absence of the folding function at every original so that the ejected sheets can be the same size of a covering sheet. CONSTITUTION:A main body control part 60 is conectted to an operation panel 61 disposed on the upper edge plane of a copying machine, a paper size detecting sensor 63, a paper holding unit 1, and other input/output parts. When a covering function is selected and the size of the cover sheet to be used is designated, the size of the originals is compared with that of the designated covering sheet, and the presence or absence of the folding function is selected at every original so that the ejected sheets can be the same size of the covering sheet. Thus, the ejected sheets can be unified with the size of the designated covering sheet.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention has a covering function that allows a cover sheet to be ejected between regular sheets ejected to a paper ejecting section, and a covering function that allows the ejected sheets to be adjusted to a predetermined size. The present invention relates to a covering ring having a folding function and an image forming apparatus with a folding function.

[Conventional technology]

Some conventional copying machines have a covering function. Copying machines with this covering function are
Cover paper of a different color or size from plain paper can be fed every predetermined number of sheets specified in advance using keys on the operation panel. This makes it possible to insert cover sheets on the front and back sides of a series of copied sheets.

On the other hand, some conventional copying machines have been provided which perform a folding process such as folding the ejected paper in half or Z-folding the paper so that the paper can be ejected onto the ejection tray.

[Problem to be solved by the invention]

In a copying machine having a covering function as described above, when the covering function is selected, the size of the original is detected, and cover paper corresponding to the initial original size is selected and ejected. .

However, depending on the usage situation, it would be very convenient in actual use if the operator could specify the size of the cover paper and standardize the size of the plain paper that is discharged according to that size.

SUMMARY OF THE INVENTION An object of the present invention is to provide an image forming apparatus with a covering and folding function that allows the cover paper to be specified in advance and the size of the ejected paper to be unified to the size of the specified cover paper. be.

[Means to solve the problem]

The image forming apparatus with a covering and folding function according to the present invention has a covering function that allows a cover sheet to be ejected between regular sheets that are ejected to a paper ejecting section, and a folding function that allows the ejected sheet to be folded into a predetermined size. It has

The apparatus further includes a document size detecting means, a covering function selecting means, a cover sheet specifying means, and a folding function controlling means.

The document size detecting means detects the size of a document set on white document clay, the covering function selecting means selects a covering function, and the cover sheet specifying means detects the size of the document to be set on white document clay. This is for specifying the size of the cover sheet to be used. Further, the folding function control means compares the detection result of the document size detection means with the size value specified by the cover sheet specification means, so that the ejected sheet has the same size as the specified cover sheet size. This is to select whether or not to have a folding function for each document.

[Function] In this invention, when the covering function is selected, the size of the cover sheet to be used can be specified in advance. If you select the covering function and specify the size of the cover sheet to be used, the size of the original is compared with the specified cover sheet size, and the ejected sheet is set to the cover sheet for each original. The presence or absence of the folding function is selected so that the size is the same as the size of the paper.

As a result, for example, if A4 size and A3 size originals are mixed, or when forming an image on an A3 size original, if A4 size is specified as the cover sheet, it will correspond to the A3 size original. All sheets are folded in half or Z-folded and then output in A4 size.

[Embodiment] FIG. 1 is a schematic cross-sectional configuration diagram of a copying machine according to an embodiment of the present invention.

In FIG. 1, an automatic document feeder (hereinafter referred to as DF) 11, which also serves as a document holder, is provided at the top of a copying machine 10. On the right side of the copying machine 10, a bypass paper feed section 12 and paper feed cassette cases 13 and 14 are arranged in order from the top. Further below, a large paper feed cassette case 16 is arranged. In addition, in the case of this example,
Cover sheets of different sizes are stored in the bypass paper feed section 12 and the paper feed cassette case 13, respectively, and the cover sheet to be used can be selected on the operation panel. Note that the bypass paper feed unit 12 includes a sensor (not shown) for detecting the size of the cover paper placed thereon.
is provided. A paper holding unit l and a stapling unit 2 are attached to the left side of the copying machine IO.

Each of these units 1 and 2 will be described later.

A photosensitive drum 17 is arranged approximately at the center inside the copying machine IO. Around the photosensitive drum 17, a charging device 18, a developing device 19, a transfer device 20, and a paper separating device 21 are installed.
and cleaning device 22 are arranged in this order. Furthermore, an exposure device 23 is arranged in the upper space of the copying machine 10. Furthermore, the bypass paper feed section 12 etc. and the transfer device 20
A paper feed conveyance path 24 is provided between the two. A paper discharge transport device 25 and a fixing device 26 are arranged in this order on the downstream side of the transfer device 20 in the paper transport direction. There is a branch 2 between the fixing bag W26 and the paper holding unit l.
7 is arranged, and above the branch 27 a reversing device 28 is arranged. The branch 27 is in a first position (the shown position) in which the fixing device 26 is communicated with the paper holding unit 1 side.
and a posture in communication with the reversing device 28. In addition, the branch 27 and the discharge roller 29
A discharge switch 52 for detecting that paper has been discharged is provided between the paper and the paper.

An intermediate tray 30 is arranged in the lower space of the copying machine 10. A paper transport path 31 is arranged between the left end of the intermediate tray 30 and the branch 27. A paper transport path 32 is arranged between the rejuvenating end of the intermediate tray 30 and the paper feed transport path 24. The intermediate tray 30 includes a paper tray 33 on which paper is placed, a paper feed roller 34 located at the right end of the paper tray 33, and a paper feed roller 34 located at the center of the paper tray 33. A feed roller 35 is provided above the feed roller 35. A presser roller 36 is arranged above the feed roller 35 to press the paper placed on the paper table 33 from above.

The DFII is provided with a document placement section 41 on which a document is placed at the center of the device. A feeding roller 42 for feeding the original is provided at the right end of the original placing unit 41. As shown in FIG. Furthermore, a paper feed roller 44 and a paper feed path 45 continuous with the paper feed roller 44 are provided at the right end of the housing 43 constituting the DFII. Documents [Below the storage section 41, there is a contact glass 4 that is continuous with the paper feed path 45.
A transport heald 46 facing 7 is arranged.

Roughly, at the left end of the housing 43, there is a conveyor belt 4.
A document ejection path 48 is provided for ejecting the original from the original document placement section 6 to the document placement section 41 serving as a document ejection section. Also,
A document reversing path 48 is arranged between the downstream end of the conveyor belt 46 and the downstream end of the document discharge path 48.
Thereby, when a double-sided original is used, the original can be reversed and fed onto the contact glass 47 again. A sensor 51 for detecting the presence or absence of a document is provided at the right end of the document placement section 41, and a document size sensor 53 for detecting the size of the document is provided in the middle of the paper feed path 45. It is located.

The paper hold unit 1 is a unit that can fold a copied sheet in half or Z-fold, and includes mechanisms such as a folding/non-folding switching lever 3 and a folding roller 4.

The stapling unit 2 is a unit for performing a stapling function, and this unit can staple copied sheets. The stable unit 2 includes a stable/stag switching lever 5, a staple storage mechanism 6, a staple drop lever 7, a staple tray 8, a stacker tray 9, etc. for switching between binding or simply ejecting the ejected sheets. It is equipped.

As shown in Figure 2, this copying machine has a CPU, RAM,
It has a main body control section 60 consisting of a microcomputer equipped with a ROM and the like. The main body control section 60 includes an operation panel 61 disposed on the upper end surface of the copying machine, a paper size detection sensor 63 for detecting the paper size of the bypass paper feed section 12 and the size of each paper feed cassette, and a paper size detection sensor 63 shown in FIG. The discharge switch 52 and other input sections are connected. The main body control unit 60 also includes a paper feed drive unit 64 that drives paper feed rollers, an image forming unit drive unit 65 that includes an optical system drive unit, and the like shown in FIG. The hold unit) 1 and stable unit 2 are connected to other output sections.

The DFII also includes a CPU, similar to the main body control section 60.
There are a total of 66 DPI 11 control units 66 each consisting of a microcomputer equipped with , RAM, ROM, etc.

The DF control section 66 is connected to the main body control section 60, and the DF control section 66 includes the document presence detection switch 51 and document size detection sensor 53 shown in FIG. A DF drive section 67 for driving the rollers 44 and the like is connected to other crowd line sections.

Next, the operation will be explained according to the flowcharts shown in FIGS. 3A and 3B.

When the main switch of the copying machine is turned on, initial settings such as setting the number of copies to one are performed in step St in FIG. 3A. In addition, in the initial settings, APS
mode is set. This APS mode is a mode in which paper is automatically selected.

Next, in step S2, it is determined whether the copy key has been pressed. If it is determined NO in step S2, it is determined in step S3 whether a key for specifying a cover sheet has been pressed and a cover sheet designation mode has been selected. If the cover paper designation mode is selected in step S3, the process moves to step S6. In step S6, the specified cover paper size is read.

Then, in step S7, a DF auto selection mode, that is, a mixed loading mode in which the document size is detected one by one, is set, and the process returns to step S2. Further, in step S4, it is determined whether any other key has been pressed. If another key is pressed, the process moves from step S4 to step S5, where processing according to the pressed key is executed and step S2
Return to

If the copy key is pressed, the process from step S2 to the third
The process moves to step S8 in Figure B. In step S8, DF
The document is fed on the second sheet, and the document is set at a predetermined position on the contact glass 47.

In step S9, it is determined whether the mode is mixed loading mode and APS mode. If both modes are not set, the process moves to step S10, other processing is performed, and the process returns to step S2.

If the determination in step S9 is YES, the process moves to step Sll and the document size is detected. Next, in step 312, it is determined whether the mode is the cover paper designation mode. If it is not the cover paper designation mode, the process moves to step SIO, other processing is performed, and the process returns to step S2.

If the cover paper designation mode is selected, the process moves to step S13. In step 313, it is determined whether the size of the document and the specified cover sheet size are the same. If the original size and the designated cover paper size are different, the process moves to step S14, where it is determined whether the original size is twice the designated cover paper size.

Here, double size means A3 size for A4 size, B4 size for B5 size, ll×8・1/
2. Refers to the case of 11×17° size. In both step S13 and step 514, N
If it is determined as o, the process moves to step S15.

In step S15, cover paper replenishment is displayed on the operation panel, each mode is set to the initial state, and the process returns to step S2.

If it is determined in step S13 that the document size and the specified paper size are the same, the process directly proceeds to step S17. If it is determined in step S14 that the document size is twice the designated cover paper size, the folding mode is set in step 316, and the process moves to step S17.

In step S17, a paper feed cassette is searched. As a result, a paper feed cassette containing paper of the same size as the original is searched. In step S18, it is determined whether there is paper of the same size as the original. If not, the process moves from step S18 to step S20, displays paper replenishment on the operation panel, sets each mode to its initial state, and returns to step S2. If it is determined in step 518 that there is paper of the predetermined size, the process moves to step S19 to feed paper from the searched paper feed cassette and start copy processing.

Next, in step S21, the ejection roller 29 of the copying machine main body
It is determined whether or not paper has been ejected. If the paper has been ejected, it is determined in step S22 whether the folding mode is set. If the folding mode is selected, the process moves to step S23, and a folding operation such as half-folding or Z-folding is performed. Then, in step S25, the folding mode is turned off and the process moves to step S26. If it is determined in step S22 that the folding mode is not selected, other processing is performed in step S24, and the process moves to step S26. Step S
In step 26, it is determined whether the original that has undergone copy processing is the final original. If it is not the final manuscript, step S
Return to step 8 and repeat the above operations. Also, step S2
If it is determined in step 6 that it is the final manuscript, proceed to step S.
In step 27, it is determined whether the copying process for the set number of copies has been completed. If the process has not been completed, the process returns to step S8 and the above-described operation is repeated, and if the process is completed, the process returns to step S2 in FIG. 3A.

In this embodiment, when the cover paper to be used is specified in advance, the document size and the specified cover paper size are compared in step 313 and step S14 shown in FIG. 3B, and if the document size is double the size, Since the folding mode is set in step S16, the sheets to be ejected can be unified to the specified size of the cover sheet.

For example, if A4 size is specified as the cover paper size, and A4 and A3 size originals are mixed, the A3 size paper is folded into A4 size and outputted υ1. Also, if the manuscript is A3 size,
All are folded into A4 size and delivered.

[Other Examples]

In the above embodiment, the case where the copy magnification is 100% has been described, but if the copy magnification is other than 100%, in step 313 and step S14 in FIG. 3B,
The folding function is controlled by comparing not the document size but the scaled size and the specified cover paper size.

〔Effect of the invention〕

As described above, in the present invention, when the covering function is selected, the operator can specify the cover paper to be used in advance, and the paper folding of the ejected paper is controlled according to the size of the specified cover paper. can do. Therefore, the sheets to be ejected can be unified to the specified cover sheet size.

[Brief explanation of drawings]

FIG. 1 is a schematic longitudinal cross-sectional view of a copying machine with covering and folding functions according to an embodiment of the present invention, FIG. 2 is a control block diagram thereof, and FIGS. 3A and 3B are its control flowchart 1. This figure is not shown. ■...Paper hold unit, 53...Document size detection sensor, 60...Main body control section, 61...Operation panel, 66...DF control section.

Claims (1)

[Claims] (1) An image forming device with a covering and folding function, which has a covering function that allows a cover sheet to be ejected between regular sheets that are ejected to the paper ejecting section, and a folding function that folds the ejected sheets into a predetermined size. , a document size detecting means for detecting the size of the document set on the document table; a covering function selecting means for selecting the covering function; and a cover sheet specifying means for specifying the size of the cover sheet to be used. and comparing the detection result of the original size detecting means with the size value specified by the cover sheet specifying means, and determining the presence or absence of a folding function for each original so that the ejected sheet has the same size as the cover sheet size. An image forming apparatus with a covering and folding function, comprising: a folding function control means for selecting; and an image forming apparatus with a covering and folding function.