JP3036748B2 - Image forming device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention forms an image on a sheet according to a predetermined instruction, and discharges the sheet on which an image has been formed to a processing apparatus that performs a processing process on the sheet. To an image forming apparatus.

[Conventional technology]

Conventionally, in an image forming apparatus having a sheet post-processing apparatus,
If a problem such as a paper jam (called a jam) occurs before a series of image forming processes (called a JOB) is completed, the processing operation is immediately stopped, and a recovery operation is performed in response to a reset button input thereafter. Had been restored to its initial state.

[Problems to be solved by the invention]

However, if a failure occurs in the sheet post-processing apparatus such as staple jam during stapling, normal image formation has been performed on the recording paper, so it is not necessary to perform image formation again, In the conventional apparatus, since image formation (copying) is performed again in order to redo stapling, there is a disadvantage in that work time and cost are wasted.

SUMMARY OF THE INVENTION An object of the present invention is to provide an image forming apparatus which eliminates the above-mentioned disadvantages and does not perform useless work.

[Means for solving the problem]

In order to achieve the above object, the present invention has an input unit for inputting an instruction of an image forming process, and forms an image on a sheet according to the instruction of the image forming process input by the input unit. An image forming apparatus that discharges an image-formed sheet to a processing apparatus that performs a binding process, wherein the image forming apparatus performs recovery of image formation when a sheet jam occurs during image forming processing. Receiving means for receiving, from the processing apparatus, a notification of an abnormality relating to a binding process on a sheet in the processing apparatus, wherein the abnormality is determined in response to receiving the notification of the abnormality by the receiving means. Display means for performing display related to the image forming process based on the instruction input by the input means. And, in response to receiving the notification of the abnormality relating to binding processing with respect to the sheet by the receiving unit without performing the recovery of the image forming process, as in the case of not receiving the notification of the abnormality,
An image forming apparatus is provided which waits for another new image forming process instruction different from the instruction corresponding to the image forming process in which the abnormality has occurred.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a basic configuration of an embodiment of the present invention. In FIG. 1, A is a sheet post-processing means for performing a predetermined post-processing on an image-formed sheet after collation. In the case B, if an abnormality occurs in the sheet post-processing unit A after the end of the image forming process of the image forming unit C, the process is ended as it is, and the image forming unit C performs a recovery operation with image formation. This is a control means for controlling so as not to exist.

FIG. 2 shows the internal configuration of an embodiment of the image forming apparatus of the present invention. In FIG. 2, reference numeral 100 denotes a main body having an image reading function and an image recording function; 200, a double-side processing function for turning over a recording medium (paper) during double-sided recording; A pedestal having a multiplex recording function, 300 is a recirculating document feeder (hereinafter, referred to as RDF) for automatically feeding documents, and 400 is a collating device with staples (hereinafter, referred to as a staple sorter).
The devices 200 to 400 can be freely combined with the main body 100 and used.

A. Main unit (100) In the main unit 100, 101 is a platen glass on which an original is placed, 103 is an illumination lamp (exposure lamp) for illuminating the original, 1
Reference numerals 05, 107 and 109 denote scanning reflection mirrors (scanning mirrors) for changing the optical path of the reflected light of the document, 111 denotes a lens having focusing and zooming functions, and 113 denotes a fourth reflection mirror (scanning mirror) for changing the optical path. . Reference numeral 115 denotes an optical system motor that drives the optical system, and 117, 119, and 121 denote sensors.

131 is a photosensitive drum, 133 is a main motor for driving the photosensitive drum 131, 135 is a high-pressure unit, 137 is a blank exposure unit, 139 is a developing device, 141 is a transfer charger, 143 is a separation charger, and 145 is a cleaning device. is there.

151 is an upper cassette, 153 is a lower cassette, 171 is a manual paper feed port, 155 and 157 are paper feed rollers, and 159 is a registration roller. Reference numeral 161 denotes a conveyance belt for conveying the recording paper on which the image has been recorded to the fixing side; 163, a fixing device for fixing the conveyed recording paper by thermocompression; and 167, a sensor used for double-sided recording.

The surface of the photosensitive drum 131 is made of a photoconductor and a seamless photosensitive member using a conductor. The drum 131 is rotatably supported by a shaft, and operates in response to pressing of a copy start key described later. The rotation is started by the motor 133 in the direction of the arrow in FIG. Next, when the predetermined rotation control and potential control processing (preprocessing) of the drum 131 is completed, the original placed on the original platen glass 101 is illuminated by the illumination lamp 103 integrated with the first scanning mirror 105, The reflected light of the original is supplied to a first scanning mirror 105, a second scanning mirror 107, a third scanning mirror 109, a lens 111, and a fourth scanning mirror 11
The image is formed on the drum 131 via 3.

The drum 131 is corona-charged by the high-pressure unit 135. Thereafter, the image (original image) illuminated by the illumination lamp 103 is slit-exposed, and the drum 131 is driven by a known NP method.
An electrostatic latent image is formed thereon.

Next, the electrostatic latent image on the photosensitive drum 131 is developed by the developing roller 140 of the developing device 139 and visualized as a toner image, and the toner image is transferred onto transfer paper by the transfer charger 141 as described later. .

That is, the upper cassette 151 or the lower cassette 153
The transfer paper inside, or the transfer paper set in the manual paper feed port 171 is sent into the main body device by the paper feed roller 155 or 157, is sent by the registration roller 159 in the direction of the photosensitive drum 131 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, and
The upper toner image is transferred onto the transfer paper. After completion of the transfer, the transfer paper is separated from the drum 131 by the separation charger 143, guided to the fixing device 163 by the transport belt 161 and fixed by pressure and heat, and then discharged out of the main body 100 by the discharge roller 165. Is done.

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

B. Pedestal (200) The pedestal 200 is detachable from the main body 100, and has a deck 201 capable of storing 2000 sheets of transfer paper and an intermediate tray 203 for double-sided copying. Also, its 200
The lifter 205 of the deck 201 that can hold 0 sheets
Is increased according to the amount of the transfer sheet so that the transfer sheet always contacts the transfer sheet.

Further, reference numeral 211 denotes a discharge flapper for switching a path between a double-side recording side or multiple recording side path and a discharge side path, 213 and 215 reference conveyance paths of a conveyance belt, and 217 denotes an intermediate tray weight for holding a transfer sheet. Paper discharge flapper 211 and transport paths 213 and 215
The transfer paper that has passed through is turned over, and an intermediate tray for duplex copying
Stored in 203. Reference numeral 219 denotes a multiplex flapper for switching the path between double-sided recording and multiplex recording. The flapper 219 is disposed between the conveyance paths 213 and 215 and guides the transfer paper to the multiplex recording conveyance path 221 by rotating upward. Reference numeral 223 denotes a multiple discharge sensor for detecting the end of the transfer paper passing through the multiple flapper 219. Reference numeral 225 denotes a paper feed roller for feeding the transfer paper to the drum 131 through the path 227. Reference numeral 229 denotes a discharge roller for discharging the transfer paper outside the apparatus.

At the time of double-sided recording (double-sided copying) or multiple recording (multiplexed copying), first raise the discharge flapper 211 of the main body 100 to
The copied transfer paper is stored in the intermediate tray 203 via the transport paths 213 and 215 of the pedestal 200. At this time, the multiplex flapper 219 is lowered during double-side recording, and the multiplex flapper 219 is raised during multiplex recording. The intermediate tray 203 can store, for example, up to 99 transfer sheets. The transfer paper stored in the intermediate tray 203 is pressed by the intermediate tray weight 217.

At the time of the next backside recording or multiplex recording, the transfer paper stored in the intermediate tray 203 is transferred from the bottom of the main body 100 via the path 227 by the action of the sheet feeding roller 225 and the weight 217 one by one from below. It is guided to the roller 159.

C. RDF (Circulating Document Feeding Device) (300) In the RDF 300, reference numeral 301 denotes a stacking tray on which a document bundle 302 is set. First, in the case of a single-sided original, the original is separated one by one from the lowermost portion of the original bundle 302 by the half-moon roller 304 and the separating roller 303, and the separated original is passed by the transport roller 305 and the entire belt 306 to the exposure position of the platen glass 101. IIII, and the copying operation is started. After copying is completed, the original on platen glass 101 is
The sheet is sent to paths V and VI by the large conveying rollers 307 through II and IV, and is returned to the uppermost surface of the original bundle 302 by the discharge rollers 308 again.

Reference numeral 309 denotes a recycle lever for detecting document circulation. The recycle lever 309 is placed above the bundle of documents at the start of document feeding. Documents are sequentially fed, and the rear end of the last document passes through the recycle lever 309. At this time, the document is dropped on the stacking tray 301 by its own weight, thereby detecting one cycle of the document.

Next, in the case of a double-sided original, the original is temporarily
After the copying, the leading end of the document is guided to the path IV by switching the rotatable switching flapper 310, and the entire belt 306 is passed through the path II by the transport roller 305.
To stop conveying the original onto the platen glass 101. In other words, the configuration is such that the reverse of the original is executed on the route of the paths III to IV to II by the rotation of the large conveying roller 307.

The original bundle 302 is passed one sheet at a time through paths I-II-III-IV-V.
By transporting the document until it is detected by the recycle lever 309 through .about.VI, the number of documents can also be counted.

D. Staple Sorter (Staple Collating Device) 400 The staple sorter 400 has a tray 412 movable up and down with 20 pins and a fixed non-sort tray 411 of one bin, and performs collation.

In the case of the sort mode, the copied sheet is sequentially discharged from the discharge rollers 229 of the main body, enters the transport rollers 401 of the sorter 400, and is discharged from the discharge rollers 405 to the respective bins of the tray 412 through the transport path 403. You. At this time, each time the sheet is discharged to each bin, each bin is moved up and down by a bin shift motor (not shown) to perform collation. Also, when the staple mode is selected and a staple signal is input from the main body 100, the bin shift motor is activated by the bin shift motor.
The staple device 420 staples the sheets of each bin while moving the bins one by one.

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

E. Key Group (600) In FIG. 3, reference numeral 601 denotes an asterisk (*) key, which is used when an operator (user) is in a setting mode such as setting a binding margin amount or setting a size for erasing a document frame. .
An all reset key 606 is pressed to return to the standard mode. Reference numeral 602 denotes a preheating key, which is pressed when the machine of the main body 100 is set to the preheating state and when the preheating state is released. The key 602 is also pressed when returning from the auto shut-off state to the standard mode.

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

A clear / stop key 604 has a clear key function during standby and a stop key function during copy recording. This clear key is pressed to cancel the set number of copies. Also used to cancel * (asterisk) mode. The stop key is pressed to interrupt continuous copying. After the copying at the time of pressing is completed, the copying operation is stopped.

A numeric keypad 603 is pressed to set the number of copies. Also used to set * (asterisk) mode. A memory key 619 is used to register a mode frequently used by the user. Here, four modes M1 to M4 can be registered.

Reference numerals 611 and 612 denote copy density keys, which are pressed when the copy density is manually adjusted. An AE key 613 is used to automatically adjust the copy density according to the density of the original.
Press to cancel (automatic density adjustment) and switch the density adjustment to manual (manual). A cassette selection key 607 is pressed to select the upper cassette 15, the middle cassette 153, and the lower paper deck 201. When a document is placed on the RDF 300, APS (automatic paper cassette selection) can be selected with this key 607. When APS is selected, a cassette having the same size as the original is automatically selected.

Reference numeral 610 denotes a 1: 1 key, which is pressed when making a 1: 1 (original) copy. An automatic scaling key 616 is pressed when automatically reducing or enlarging the image of the document according to the designated size of the transfer paper. 617 and 618 are zoom keys, 64
Press to specify any magnification between ~ 142%. Reference numerals 608 and 609 are fixed-size scaling keys, which are pressed when designating reduction / enlargement of the fixed-size.

A double-sided key 626 is pressed to make a two-sided copy from a one-sided original, a two-sided copy from a two-sided original, or a one-sided copy from a two-sided original. A binding margin key 625 can create a binding margin of a designated length on the left side of the transfer paper. A photo key 624 is pressed when copying a photo document. 623
Is a multiplex key, which is pressed when an image is created (combined) on the same side of the transfer paper from two originals.

Reference numeral 620 denotes a document frame erase key, which is pressed when the user erases a frame of a standard size document, and the size of the document at that time is set by an asterisk key 601. Reference numeral 621 denotes a sheet frame erasing key, which is pressed when erasing a document frame according to the size of a cassette.

Reference numeral 622 denotes a continuous page copy key, and the left and right pages of the document are
Press to copy each sheet separately.

A discharge method selection key 614 is used to select a staple, sort, or group discharge method.If a stapler capable of stapling the recorded paper is connected, the staple mode and the sort mode can be selected. The selection mode can be released, and when a sorting tray (sorter) is connected, the sorting mode and the group mode can be selected or the selection mode can be released.

A paper folding selection key 615 is used to select one of a Z-folding method for folding a sheet of recorded paper of A3 or B4 size into a Z-shape and a half-folding method for folding a sheet of recorded paper of A3 or B4 size in half. You can cancel that selection.

F. Display group (700) In FIG. 3, reference numeral 701 denotes L for displaying information related to copying.
This is a CD (liquid crystal) type message display. For example, one character is composed of 5 × 7 dots, a 40-character message, a fixed-size variable key 608, 609, an equal-size key 610, and a zoom key 61.
The copy magnification set in 7,618 can be displayed. This display 701 is a transflective liquid crystal and uses two colors for a backlight, and usually a green backlight is turned on.
The orange backlight is turned on when an error occurs or when copying is not possible.

Reference numeral 706 denotes an equal-magnification display, which lights when the equal-magnification is selected. Reference numeral 703 denotes a color developing device display, which lights when a sepia developing device is set. A copy number display 702 displays the copy number or a self-diagnosis code. Reference numeral 705 denotes a used cassette display, which indicates which of the upper cassette 151, the middle cassette 153, and the lower deck 201 is selected.

Reference numeral 704 denotes an AE display, which lights when AE (automatic density adjustment) is selected with the AE key 613. Reference numeral 709 denotes a preheating indicator, which lights up in a preheating state. This indicator flashes during the auto shut-off state. 707 is a ready / weight indicator, two-color LE for green and orange
In the case of D, green is lit when ready (when copying is possible), and orange when waiting (when copying is not possible).

Reference numeral 708 denotes a double-sided copy display which is turned on when one of double-sided copying from a double-sided original and double-sided copying from a single-sided original is selected.

When the RDF300 is used in the standard mode, the setting is one copy, the density AE mode, the automatic paper selection, the same size, and the one-sided copying from the one-sided original. In the standard mode when the RDF300 is not used, the number of copies is set to one, the density manual mode is set to the same size, and one-sided original to one-sided copy is set. RDF300
The difference between when the document 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 is turned on when a power switch (not shown) is turned on (turned on).

G. Controller (800) FIG. 4 shows an example of a circuit configuration of the controller 800 according to the embodiment shown in FIG. In FIG. 4, reference numeral 801 denotes a central processing unit (CPU) for performing arithmetic control for executing the present invention.
A 16-bit microcomputer V50 manufactured by EC (NEC Corporation) is used. Reference numeral 803 denotes a read-only memory (ROM) in which a control procedure (control program) as shown in FIG. 5 according to the present invention is stored in advance.
Each component device connected via the bus is controlled according to the control procedure stored in 803. Reference numeral 805 denotes a random access memory (RAM) which is a main storage device used for storing input data, a work storage area, and the like.

Reference numeral 807 denotes an output signal transfer interface (I / O) for outputting a control signal of the CPU 801 to a load such as the main motor 133;
Reference numeral 09 denotes an interface for input signal transmission of an input signal of the image sensor 121 and the like, which is transmitted to the CPU 801. Reference numeral 811 denotes a key group 600.
And an interface for input / output control of the display group 700 and the display group 700. These interfaces 807, 809, 811 use, for example, the input / output circuit port μPD8255 of NEC.

The display group 700 is each of the display units 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 know which key has been pressed by a known key matrix.

H. Operation Example Next, the operation of the embodiment of the present invention will be described with reference to the flowchart of FIG.

First, in step 4-1, the process waits for the copy start key 605 of the operation unit of the main body 100 to be pressed, and when the copy start key 605 is pressed, the clear / stop key 604 and the copy density keys 611 and 612 are removed in step 4-2. Prohibit key input. Next, in step 4-3, it is determined whether the mode is the staple mode or, in step 4-4, the sort mode. If not, the non-sort mode is notified to the staple sorter 400 via a communication line in step 4-5. If the mode is the sort mode, step 4-6
Notifies the staple sorter 400 of the sort mode in the same manner.

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

Subsequently, in step 4-8, in order to transport the original from the RDF 300 onto the original platen glass 101, an instruction to feed the original to the RDF 300 is issued through the communication line. In the next step 4-9, the process waits until the RDF 300 sends a signal indicating the completion of document feeding, and upon receiving the signal indicating the completion of document feeding, performs a copying operation in step 4-10, and completes copying (copied 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 step 4-11, a document discharge command is output to the RDF 300, and in step 4-12, the document to be processed is RDF3.
It is detected whether 00 is no longer present. If there is still an original in the RDF 300, the process returns to step 4-8 of the operation for feeding the next original.

When copying of all originals is completed, step 4-13
Waits until all the copied papers are stored in the bin on the side of the staple sorter 400,
If all the copied papers are stored in 0, the next step 4
At -14, the main motor 133 on the main body side is stopped.

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

If it is not the staple mode in the next step 4-17, the process is terminated as it is, and the process returns to the step 4-1 waiting for the copy start key 605. If it is the staple mode, the staple is sent to the staple sorter 400 in the next step 4-18. At the same time, and outputs a message stapling "staple @ city" to the message display 701 at step 4-19.

If the stapling is normally completed in the next step 4-20, the above-mentioned message indicating that stapling is in progress is deleted, and the process returns to step 4-1 again.

On the other hand, if a staple jam notification is sent from the staple sorter 400 via the communication line in step 4-22 during the stapling operation, the next step 4-23
Then, a message stapler jam print is output to the message display 701 to indicate that it is a staple jam, and the process returns to step 4-1 waiting for the copy start key 605 again.

〔The invention's effect〕

As described above, according to the present invention, in an image forming apparatus that performs recovery of image formation when an abnormality occurs in an image forming process, a notification of an abnormality regarding a sheet binding process performed after the image forming process is completed is received. In response to the above, the display relating to the abnormality is performed, and even if the notification of the abnormality is received, without performing the recovery of the image formation, the abnormality occurs in the same manner as when the notification of the abnormality is not received. Since it waits for another new image forming instruction different from the instruction corresponding to the image forming process, it is possible to inform the user that the binding process on the sheet has failed, and to perform the binding process on the sheet. It is possible to prevent the image forming process, which should have been completed normally, from being performed again even though the image forming process cannot be performed. This makes it possible to manually perform the binding process on a sheet for which the binding process has not been completed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a basic configuration of an embodiment of the present invention, FIG. 2 is a sectional view showing an internal configuration of an entire apparatus according to an embodiment of the present invention, and FIG. 3 is an operation panel of the embodiment of FIG. FIG. 4 is a block diagram showing a circuit configuration of the control device of the embodiment shown in FIG. 2, and FIG. 5 is a flowchart showing an operation procedure of the embodiment shown in FIG. 100: Main unit, 101: Platen glass, 131: Photosensitive drum, 133: Main motor, 151,153: Cassette, 161: Conveyor belt, 165: Discharge roller, 171: Manual feed port, 200 …… Pedestal, 201… Deck, 203 …… Intermediate tray, 229 …… Discharge roller, 300 …… RDF (circulation type document feeder), 301… Loading tray, 307… Large transport roller, 400… … Staple sorter, 401… transport roller, 411… non-sort tray, 412… tray, 420… staple device, 600… key group 605… copy start key, 614… discharge method selection key, 615: Paper folding selection key, 700: Display group, 701: Message display, 702: Copy number display, 800: Control device, 803: ROM, 805: RAM.

Continued on the front page (72) Inventor Hideki Adachi 3-30-2 Shimomaruko, Ota-ku, Tokyo Inside Canon Inc. (72) Inventor Toshiya Kanazawa 3-30-2 Shimomaruko, Ota-ku, Tokyo Inside Canon Inc. (56) References JP-A-58-17460 (JP, A) JP-A-63-116168 (JP, A) JP-A-62-99765 (JP, A) JP-A-63-31976 (JP, A) ( 58) Surveyed field (Int.Cl. ⁷ , DB name) B65H 7/06 B65H 37/04 G03G 15/00

Claims (1)

(57) [Claims] An input unit for inputting an instruction for an image forming process; forming an image on a sheet in accordance with the instruction for the image forming process input by the input unit; and performing a binding process on the sheet. An image forming apparatus configured to discharge a sheet on which an image has been formed to a processing apparatus, the image forming apparatus having a control unit configured to perform recovery of image formation when a sheet jam occurs during the forming processing by the image forming apparatus. A receiving unit that receives, from the processing device, a notification of an abnormality related to a binding process on a sheet in the processing device; and a display unit that displays the abnormality in response to receiving the notification of the abnormality by the receiving device. And the control unit completes an image forming process based on the instruction input by the input unit, and In response to receiving the notification of the abnormality related to the binding process for the sheet, without performing the recovery of the image forming process, similarly to the case where the notification of the abnormality is not received, the image forming in which the abnormality has occurred is performed. An image forming apparatus that waits for another new image forming process instruction different from an instruction corresponding to a process.