JPH0289775A - Image forming device - Google Patents

Abstract

PURPOSE:To get rid of an unnatural condition of indicating zero in the number of sheets for a long time by providing a control means for carrying out the control of a number of sheet indicating means for returning the indicated number of sheets to the contents of the indication prior to the image forming treatment, during the period of after-treatment after the end of a series of image formation. CONSTITUTION:A number of sheet indicating means C indicates the number of sheet members to be treated for image formation prior to image formation treatment by an image forming means A. During an image forming treatment, the indicating number of sheets of the number of sheet indicating means C is varied by a control means D in accordance with the treating operation. Then, during the period of carrying out a defined after-treatment for sheet members by a sheet after-treating means B after finishing a series of image formation on the sheet members by the image forming means A, the indicating number of sheets of the number of sheet indicating means C is returned to the contents of the indication prior to the image forming treatment.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an image forming apparatus such as a copying machine or a facsimile machine, and particularly relates to an image forming apparatus equipped with a sheet post-processing device that performs stabilization after collation, etc. .

[Conventional technology]

Conventionally, in an image forming apparatus equipped with a sheet post-processing device, during a series of image forming processes and subsequent post-processing (for example, paper folding, stipple, etc.), the sheet number display section of the operation section displays the set number of sheets during the image forming process. For example, the number of sheets is indicated by a countdown, and the previous number of sheets is maintained during post-processing. For example, °O" sheets are still displayed.

[Problem to be solved by the invention]

However, in such a conventional apparatus, the sheet number display section maintains the previous state during post-processing (for example, during stibbling), so if post-processing is long, the displayed content will look unnatural. For example, there was a drawback that the display continued until the stipple was completed, with the "°°0" sheet being displayed.

SUMMARY OF THE INVENTION An object of the present invention is to provide an image forming apparatus that eliminates the above-mentioned drawbacks and eliminates the unnaturalness of display contents by returning the number of sheets displayed to the set number during post-processing after a series of image formation is completed. There is a particular thing.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides an image forming means for forming an image on a sheet member, and a predetermined post-processing for the image-formed sheet member after collation. a sheet post-processing means; a sheet number display means for displaying the number of sheet members to be subjected to image forming processing before the image forming process of the image forming means; and a sheet number display means that changes the displayed number of sheets according to the processing operation during the image forming process and a control means for controlling the number of displayed sheets to return to the display content before the image forming process during a period of post-processing after a series of image forming processes are completed.

[For production]

In the present invention, with the above configuration, the display content of the sheet number display means is returned to the set value of the number of sheets during post-processing (for example, during stibbling) after a series of image formation is completed, so that the state of the sheet number τ remains unchanged for a long time. The unnaturalness of being displayed is eliminated.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows the basic configuration of an embodiment of the present invention. In FIG. 1, A is an image forming means that forms an image on a sheet member. B is a sheet post-processing means that performs predetermined post-processing on the image-formed sheet members after collation. Reference numeral C denotes a number display means for displaying the number of sheet members to be image-formed before the image-forming process by the image-forming means A. D controls the number display means C to change the number of displayed sheets according to the processing operation during the image forming process, and to return the displayed number to the display content before the image forming process during the post-processing period after the series of image formation is completed. It is a control means that performs. E is a sheet number setting means.

FIG. 2 shows the internal configuration of an embodiment of the image forming apparatus of the present invention. In Fig. 2, 100 is a main body that has an image reading function and an image recording function, and 200 is a double-sided processing function that turns the recording medium (paper) over during double-sided recording, and performs multiple recordings on the same recording medium. A pedestal with a multiplex recording function, 300 a circulating document feeding device (hereinafter referred to as R11F) that automatically feeds documents, and 400 a T-combining device with stapling (hereinafter referred to as a stable sorter). Each of the devices 200 to 400 can be used in combination with the main body 100 as desired.

A0 main body (100) In the main body 100, reference numeral 101 denotes an original table glass on which the original is placed, 103 an illumination lamp (exposure lamp) that illuminates the original, and 105, 107, and 109 each a scanning lamp that changes the optical path of the reflected light of the original. Reflection mirror (scanning mirror), 1
Reference numeral 11 indicates a lens having focusing and variable magnification functions, and reference numeral 113 indicates a fourth reflection mirror (scanning mirror) that changes the optical path.

115 is an optical system motor that drives the optical system, 117, 11
9 and 121 are sensors, respectively.

131 is a photosensitive drum, 133 is a main motor that drives the photosensitive drum 131, 135 is a high voltage unit, 137 is a blank exposure unit, 139 is a developing device, 141 is a transfer charger, 147 is a separation charger, and 145 is a cleaning device. be.

151 is the upper cassette, 153 is the lower cassette, 171
1 is a manual paper feed slot, 155 and 157 are paper feed rollers, 1
59 is a registration roller. Further, 161 is a conveyor belt that conveys the recording paper on which an image has been recorded to the fixing side, 163 is a fixing device that fixes the conveyed recording paper by thermocompression bonding, and 1
67 is a sensor used for double-sided recording.

The surface of the photosensitive drum 131 described above is made of a seamless photoconductor using a photoconductor and an electric conductor. The motor 133 starts rotating in the direction of the arrow in the figure. Next, when the predetermined rotational control and potential control processing (preprocessing) of the drum 131 are completed, the original placed on the original platen glass 101 is illuminated by the illumination lamp 103 that is integrated with the first scanning mirror 105. The reflected light from the original is transmitted to the first scanning mirror 105 and the second scanning mirror 105.
Scanning mirror 107, third scanning mirror 109, lens 11
1.

The image is then formed on the drum 131 via the fourth scanning mirror 113.

The drum 131 is corona charged by a high pressure unit 135. After that, the image illuminated by the illumination lamp 103 (
The original image) is exposed to slit light, and an electrostatic latent image is formed on the drum 131 using a known NP method.

Next, the electrostatic latent image on the photosensitive drum 131 is transferred to a developing device 139.
The toner image is developed by the developing roller 14G and visualized as a toner image, and the toner image is transferred onto the transfer paper by the transfer charger 141 as described later.

That is, the upper cassette 151 or the lower cassette 1
The transfer paper in 53 or the transfer paper set in the manual paper feed port 171 is fed into the main unit by a paper feed roller 155 or 157, and is sent in the direction of the photosensitive drum 131 by a registration roller 159 with accurate timing. ,
The leading edge of the latent image and the leading edge of the transfer paper are matched. Thereafter, the transfer paper passes between the transfer charger 141 and the drum 131, so that the toner image on the drum 131 is transferred onto the transfer paper. After this transfer is completed, the transfer paper is separated from the drum 131 by the separation charger 143, guided to the fixing device 163 by the conveyor belt 181, fixed by pressure and heat, and then discharged from the main body 100 by the discharge roller 165. be done.

After the transfer, the drum 131 continues to rotate, and its surface is cleaned by a cleaning device 145 composed of a cleaning roller and an elastic blade.

B. Bedistal (200) Bedistal 200 can be separated from the main body 100, and has a deck 201 that can store 2000 sheets of transfer paper.
and an intermediate tray 203 for double-sided copying. Further, the lifter 205 of the deck 201, which can accommodate 2000 sheets, is raised according to the amount of transfer paper so that the transfer paper always comes into contact with the paper feed roller 207.

Further, 211 is a paper discharge flapper that switches the path between the double-sided recording side or multiplex recording side and the discharge side path, and 213, 2
15 is a conveyance path of a conveyor belt, and 217 is an intermediate tray weight for holding down the transfer paper. The transfer paper that has passed through the paper discharge flapper 211 and the transport paths 213 and 215 is turned over and stored in the intermediate tray 203 for double-sided copying. Reference numeral 219 denotes a multiple flapper for switching the path between double-sided recording and multiplex recording, and is disposed between the conveyance paths 213 and 215, and guides the transfer paper to the multiplex recording conveyance path 211 by rotating upward.

Reference numeral 223 is a multiple sheet discharge sensor that detects the end of the transfer sheet passing through the multiple flapper 219. A paper feed roller 225 feeds the transfer paper to the drum 131 through a path 227. 229 is a discharge roller that discharges the transfer paper to the outside of the machine.

During double-sided recording (double-sided copying) or multiplex recording (multiple copying), first raise the paper ejection flapper 211 of the main body 100 upwards, and move the copied transfer paper to the conveyance path 21 of the pedestal 200.
3, 215 and stored in the intermediate tray 203. At this time, the multiplex flapper 219 is lowered during double-sided recording, and the multiplex flapper 219 is raised during multiplex recording. This intermediate tray 203 can store up to 99 sheets of transfer paper, for example.

The transfer paper stored in the intermediate tray 203 is pressed down by an intermediate tray weight 217.

During the next back-side recording or multiplex recording, the transfer paper stored in the intermediate tray 203 is moved one by one from the bottom to the path 2 by the action of the paper feed roller 225 and the weight 217.
27 to the registration rollers 159 of the main body 100.

C, RDF (circulating document feeder) (300) RDF
In 300, 301 is a stacking tray on which a bundle of originals 302 is set. First, for single-sided originals, half-moon roller 3
04 and a separation roller 303 from the bottom of the document bundle 302, and the separated documents are transferred to the platen glass 10 by a conveyance roller 305 and a full-surface belt 306.
Transport is stopped through buses I to II to the exposure position No. 1,
The copying operation then begins. After copying is completed, the original on the platen glass 101 passes through paths III and IV, is sent to paths V and Vl by a large conveyance roller 307, and is returned to the top surface of the original bundle 302 by a paper discharge roller 308 again.

Reference numeral 309 denotes a recycle lever for detecting document circulation. When the document feed starts, the recycle lever 309 is placed on top of the document stack, and the documents are fed one after another until the trailing edge of the final document passes through the recycle lever 309. One circulation of the original is detected by the original falling onto the stacking tray 301 due to its own weight.

Next, in the case of double-sided originals, the originals are transferred to -H bus 1,
11 to path I11, and after copying is completed, the rotatable switching flapper 310 is switched to guide the leading edge of the document to path ■, and the conveyance roller 305 passes path ■! The document is conveyed and stopped on the platen glass 101 by the full-surface belt 306. That is, the configuration is such that the rotation of the large transport roller 307 causes the document to be reversed along paths III to II to II.

In addition, the document bundle 302 is passed one by one through passes I~II~III~.
The number of originals can also be counted by transporting the originals through 1v to V to Vl until one cycle is detected by the recycle lever 309.

D. Staple sorter (T-combining device with stable) 40
0 Stable sorter 400 has a vertically movable tray 412 for 20 bins and a fixed non-sorting tray 41 for 1 bin.
1 and perform 1 go.

In the sort mode, the copied sheets are sequentially discharged from the paper discharge roller 229 of the main body, enter the conveyance roller 401 of the sorter 400, pass through the conveyance path 403, and are discharged from the discharge roller 405 to each bin of the tray 412. be done. At this time, each bin is moved up and down by a bin shift motor (not shown) each time the sheet is discharged into each bin. Further, when the stable mode is selected and a staple signal is input manually from the main body 100, the stabilizing device 42G stabilizes the sheets in each bin while moving the sheets one bin at a time using the bin shift motor.
) and go.

FIG. 3 shows an example of the arrangement of the operation panel provided on the main body 100 described above. The operation panel has a key group 600 and a display group 700 as described below.

E. Key group (aOO) In Fig. 3, 601 is an asterisk (*) key, which is used by the operator (user) when in the setting mode, such as setting the amount of binding or setting the size of original frame eraser. .

606 is an all reset key, which is pressed to return to the standard mode. Reference numeral 602 is a preheating key, which is pressed to put the machine of the main body 100 into a preheating state and to cancel the preheating state. This key 602 is also pressed when returning from the auto-shutoff state to the standard mode.

605 is a copy start key (copy start key);
Press to start copying.

A clear/stop key 604 functions as a clear key during standby and as a stop key during copy recording. This clear key is pressed to cancel the set number of copies. It is also used to cancel * (asterisk) mode. Also, press the stop key to interrupt continuous copying. The copying operation stops after the copying at the time when the button is pressed is completed.

Numeric keys 603 are pressed to set the number of copies. It is also used to set the * (asterisk) mode. A memory key 619 allows the user to register frequently used modes. Here, Ml
- M4 modes can be registered.

Copy density keys 611 and 612 are pressed when manually adjusting the copy density. 813 is the AE key,
Press this button to automatically adjust the copy density according to the density of the original, or to cancel AE (automatic density adjustment) and switch the density adjustment to manual. A cassette selection key 607 is pressed to select the upper cassette 151, the middle cassette 153, and the lower paper deck 201. Further, when a document is placed on the RDF 300, APS (automatic paper cassette selection) can be selected using this key 607.

When 8PS is selected, a cassette of the same size as the original is automatically selected.

Reference numeral 610 is a same size key, which is pressed to make a same size (original size) copy. Reference numeral 616 is an auto-magnification key, which is pressed to automatically reduce or enlarge the original image according to the specified transfer paper size. 617 and 618 are zoom keys, which are pressed to specify any magnification between 64% and 142%. 608 and 609 are fixed size scaling keys, which are pressed when specifying reduction or enlargement of the fixed size.

A double-sided key 626 is pressed to make a double-sided copy from a single-sided original, a double-sided copy from a double-sided original, or a single-sided copy from a double-sided original. 625 is a binding key, which can create a binding margin of a specified length on the left side of the transfer paper. 62
4 is a photo key, which is pressed when copying a photo original.

Reference numeral 623 is a multiple key, which is pressed when creating (combining) an image from two originals on the same side of transfer paper.

Reference numeral 620 denotes a document frame erase key, which the user presses when erasing the frame of a standard size document, and sets the size of the document at that time with the asterisk key 6θ1.

Reference numeral 621 is a sheet frame erase key, which is pressed to erase the frame of the document according to the cassette size.

622 is a page quick copy key, which allows you to scan the left and right pages of the manuscript.
Press to make copies on separate sheets.

Reference numeral 614 is a paper ejecting method selection key for selecting the stapling, sorting, and group ejecting method, and when a stapler that can stipulate recorded paper is connected, it is used to select stapling mode and sorting mode. Or you can cancel the selection mode, and if a sorting tray (sorter) is connected, you can select the sort mode and group mode or cancel the selection mode 661
5 is a paper fold selection key, which selects either Z-fold, which folds recorded paper of A3 or B4 size into a Z-shaped cross section, or half-fold, which folds recorded paper of A3 or B4 size in half. You can cancel the selection.

F. Display group (700) In Fig. 3, 701 is an LCD (liquid crystal) type message display that displays information regarding copying. The copy magnification set using keys 608 and 609, same size key 61O, and zoom keys 617 and 618 can be displayed. This display 701 is a transflective liquid crystal display and uses two colors for the backlight.Normally, a green backlight is lit, and an orange backlight is lit when an abnormality occurs or when copying is not possible.

Reference numeral 706 denotes an equal magnification display, which lights up when equal magnification is selected. Reference numeral 703 is a color developer indicator, which lights up when a sepia developer is set. A copy number display 702 displays the number of copies or a self-diagnosis code. 70
5 is a used cassette indicator, which indicates the upper cassette 151;
It is displayed whether the middle cassette 153 or the lower deck 201 is selected.

704 is an AE display, and the AE key 613 displays 8E.
Lights up when (automatic density adjustment) is selected.

Reference numeral 709 is a preheating indicator, which lights up in the preheating state. This indicator flashes when in the auto-shutoff state. Reference numeral 707 denotes a ready/wait indicator, which is a two-color LED of green and orange, which lights green when ready (copy possible) and lights orange when wait (copy impossible).

A double-sided copy indicator 708 lights up when either double-sided copying from a double-sided original or double-sided copying from a single-sided original is selected.

When using the RDF300 in standard mode, the settings are 1 copy, density AE mode, automatic paper selection, same size, and 1-sided copying from a 1-sided original.

When the RDF300 is not in use, the standard mode is set to 1 copy, manual density mode, same size, and 1-sided copying from a 1-sided original. The difference between when the RDF 300 is used and when it is not used is determined by whether or not a document is set on the RDF 300.

A power lamp 710 lights up when a power switch (not shown) is turned on.

G. Control Device (aOO) FIG. 4 shows an example of the circuit configuration of the control device 800 of the embodiment shown in FIG. In FIG. 4, 801 is a central processing unit (cpH) that performs arithmetic control for carrying out the present invention, and uses, for example, a 16-bit microcomputer V50 manufactured by NEC (NEC Corporation). Reference numeral 803 denotes a read-only memory (ROM) in which a control procedure (control program) as shown in FIG. control each connected component device. Reference numeral 805 denotes a random access memory (RAM) which is a main storage device used for storing human data and as a working storage area.

807 is an output signal transfer interface (rlo) that outputs the control signal of the CPU 801 to loads such as the main motor 133, and 809 is an interface (rlo) for input signal transfer that inputs input signals such as the image tip sensor 121 and sends them to the PU 801. An interface 811 is an interface for human output control of the key group 600 and the display group 700. These interfaces 807, 809, and 811 use, for example, NEC's input/output circuit board μPD8255.

The display group 700 is each display device shown in FIG. 3, and uses, for example, an LED (light emitting diode) or an LCD (liquid crystal display). The key group 600 is each key shown in FIG. 3, and the CPU 801 can tell which key has been pressed using a known key matrix.

H0 Driving Example Next, the operation of the embodiment of the present invention will be described with reference to the flowchart in FIG.

First, in step 4-1, wait for the copy start key 605 on the operation panel of the main body 100 to be pressed, and when the copy start key 605 is pressed, in step 4-2, the clear/stop key 604 and copy density keys 611 and 612 are pressed. Prohibit key personnel excepted. Next, in step 4-3, it is determined whether the mode is stable mode, and further, in step 4-4, it is determined whether it is sort mode, and if it is neither, in step 4-5, the non-sort mode is notified to the stable sorter 400 through the communication line, and the mode is set to stable mode. If the staple sorter 400 is in the sort mode, the staple sorter 400 is similarly notified of the sort mode in step 4-6.

Next, in step 4-7, the main motor 133 of the main body is driven.

Next, in step 4-8, first 1IDF300
In order to convey the original from the original onto the original platen glass 101,
A document feeding command is given to the RDF 300 through the communication line. In the next step 4-9, the RDF 300 waits until it sends a signal indicating that the document feeding is complete, and when it receives the signal that the document feeding is complete, it performs a copying operation in step 4-1O.
Copied paper (copy paper) is output from the main body 100 and sent to the staple sorter 400. After copying the set number of sheets from one document, in the next step 4-11, a document discharge command is output to the RDF 300, and in the next step 4-12, it is determined whether or not there are no more documents to be processed in the RDF 300. Detect. If there is still a document in the RDF 300, the process returns to step 4-8 for feeding the next document.

After completing the copying process for all originals, proceed to step 4-13.
In step 4-14, wait until all the copied sheets have been stored in the bins on the stable sorter 400 side, and when all the copied sheets have been stored in the stable sorter 400, in the next step 4-14, the main motor on the main body side is turned off. 133 is stopped.

Next, in step 4-15, input of keys other than the copy start key 605 is permitted. Subsequently, in step 4-16, the set number of copies is displayed on the copy number display 702.

If it is not the staple mode in the next step 4-17, the process ends and the copy start key 605 is pressed again.
Return to the waiting step 4-1, and if the stapling mode is selected, the stave sorter 40 is returned to the next step 4-IB.
0 to staple, and at the same time, in step 4-19, a message "STABILE OFF" is output on the message display 701 indicating that stabling is in progress.

If the stabling is completed normally in the next step 4-20, the above-mentioned message indicating that stapling is in progress will be erased.
Return to step 4-1 again.

On the other hand, if a notification of a staple jam (paper jam) is sent from the stable sorter 400 through the communication line in step 4-22 during the stabilizing operation, a message indicating a staple jam is sent in the next step 4-23. The program outputs "Stabler Photos" to the message display 701 and returns to step 4-1, waiting for the copy start key 605.

〔Effect of the invention〕

As described above, according to the present invention, the display content of the sheet number display means is returned to the set value of the number of sheets during post-processing (for example, during stapling) after a series of image formation is completed, so that
This has the effect of eliminating the unnaturalness in which the number of sheets remains zero for a long time.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the basic configuration of an embodiment of the present invention, Fig. 2 is a sectional view showing the internal structure of the entire device of an embodiment of the invention, and Fig. 3 is an operation panel of the embodiment of Fig. 2. FIG. 4 is a block diagram showing the circuit configuration of the control device of the embodiment shown in FIG. 2, and FIG. 5 is a flowchart showing the operating procedure of the embodiment shown in FIG. 2. 100... Main body, 101... Platen glass, 131... Photosensitive drum, 133... Main motor, 151.153... Cassette, 161... Conveyance belt, 165... Paper ejection roller, 171...Manual paper feed slot,...Bedistal,...Deck,...Intermediate tray,...Output roller,...RDF (circulating document feeder),...Loading tray , ... large transport roller, ... stable sorter, ... transport roller, ... non-sort tray, ... tray, ... stable device, ... key group, ... copy start key ... Paper ejection method selection key ... Paper folding selection key ... Display group, ... Message display, ... Copy number display, ... Control device, 803 ... ROM. 805...RAM.

Claims (1)

[Scope of Claims] 1) An image forming means for forming an image on a sheet member; a sheet post-processing means for performing predetermined post-processing on the image-formed sheet members after collation; and an image of the image forming means. a sheet number display means for displaying the number of sheet members to be image-formed before the image forming process; An image forming apparatus comprising: a control means for controlling the number of displayed sheets to return to the display content before image forming processing during a period of post-processing.