JP3745082B2 - Image forming apparatus and method of controlling image forming apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an image forming apparatus for forming an image on a recording medium based on image data input through a predetermined communication medium and image data obtained by optically reading a document image, and a control method for the image forming apparatus. Is.
[0002]
[Prior art]
Conventionally, in a single image forming apparatus such as a copying apparatus, when another user is using the apparatus, a function of performing a simple image forming process by interrupting a job that forms the image has been realized. .
[0003]
In addition, when another user is using the apparatus, a function of making a reservation setting for a subsequent image forming job (image processing mode) on the operation unit has also been realized.
[0004]
Further, when there is an image output request (image processing mode reservation setting) from an external device such as a host computer in the image forming apparatus, the image output request (image processing mode reservation setting) is job queued. Then, after the preceding image output has been completed, a function of performing subsequent image output based on an image output request (image processing mode reservation setting) queued has been realized.
[0005]
[Problems to be solved by the invention]
However, the subsequent image forming job (image processing mode) reserved on the operation unit is unknown who made the reservation, and other users can cancel the reservation setting. There were problems such as canceling the reservation.
[0006]
Further, since the image output request (image processing mode) set from the operation unit and the external device is processed in the order of setting, even if the user wants to output only one image, the job being output or the preceding As a result, it is necessary to wait until all of the reserved jobs (image processing mode) are completed, resulting in a problem that the user's work efficiency is lowered.
[0007]
Main departure Mysterious My goal is, The image processing modes that have been set for reservation can be executed in the order according to their contents, and by setting the effective time of the reservation setting, the reservation setting remains even though it is not executed. Can prevent An image forming apparatus and a method for controlling the image forming apparatus are provided.
[0008]
[Means for Solving the Problems]
The first invention according to the present invention is the first image data input from an information processing apparatus (an external apparatus (not shown) capable of communicating via the LAN interface 3000) via a predetermined communication medium (LAN (not shown)). An image storage unit (RAM 2300 of the scanner unit 2000 shown in FIG. 1) for storing second image data obtained by the scanner unit 2000 shown in FIG. 1 optically reading an original image, and the image storage unit. An image forming unit (printer unit 6000 shown in FIG. 1) that forms an image on a recording medium based on the first or second image data, and the first or second image stored in the image storage unit by the image forming unit. During image formation based on the second image data, an image processing mode for the subsequent first or second image data is reserved and set. And set the valid time of the reservation setting Setting means (the CPU 4100 of the control unit 4000 shown in FIG. 1 sets an image forming mode input from an external device (not shown) that can communicate via the operation unit 1000 or the LAN interface 3000 shown in FIG. 1), and the setting The image processing mode storage means (RAM 4300 of the control unit 4000 shown in FIG. 1) for storing the image processing mode reserved by the means, and the image processing mode storage means at the end of the image formation preceded by the image forming means. A determination unit (CPU 4100) that determines whether there is an image processing mode to be preferentially executed by analyzing a plurality of stored image processing modes, and the image processing mode storage unit based on a determination result of the determination unit Control execution order of stored image processing modes In addition, the reservation setting is invalidated when the reserved image processing mode is not executed even after the valid time set by the setting means has elapsed. And control means (CPU 4100).
[0009]
According to a second aspect of the present invention, the control means (CPU 4100) determines input identification data, and any of the reserved images stored in the image processing mode storage means (RAM 4300). Cancels the processing mode.
[0010]
According to a third aspect of the present invention, the control means (CPU 4100) determines input identification data, and any of the reserved images stored in the image processing mode storage means (RAM 4300). The processing mode is corrected.
[0011]
According to a fourth aspect of the present invention, the control means (CPU 4100) is configured to input the reservation name data (user name, name) or password data (password) and identification data (user input at the time of image processing mode setting). Name, name, password, etc.) to determine whether or not the image processing mode reserved and stored can be rewritten (corrected or deleted).
[0012]
According to a fifth aspect of the present invention, the control means (CPU 4100) is configured to input the reservation name data (user name, name), personal identification data (password) and identification data (user input at the time of setting the image processing mode). Name, name, password, etc.) to determine whether or not the image processing mode reserved and stored can be rewritten (corrected or deleted).
[0013]
According to a sixth aspect of the present invention, the control means (CPU 4100) is configured to terminate the image forming process in an image processing mode reserved from an information processing apparatus (from an information processing apparatus not shown via the LAN interface 3000). The information processing apparatus is notified of an end state of image formation based on a reserved image processing mode.
[0014]
According to a seventh aspect of the present invention, the image processing mode includes a time setting (time setting) for the end of image formation.
[0016]
According to the present invention 8 In the invention, the first image data or the second image data that is input via a predetermined communication medium or the image data based on the second image data obtained by optically reading the original image is used. Reserve the image processing mode for the image data of And set the valid time of the reservation setting A setting process (steps (3) to (7), (11), (15) in FIG. 7) and a registration process (steps (8), (12) in FIG. 7) for registering the reserved image processing mode. , (16)), and at the end of the preceding image formation, a determination step of analyzing whether or not there is an image processing mode to be preferentially executed by analyzing the plurality of registered image processing modes (FIG. 5). Steps (9) and (10)), and an output step of changing the execution order of the stored image processing modes based on the determination result and outputting an image based on the first or second image data (FIG. 5 steps (11), (12)) and A processing step of invalidating the reservation setting when the reserved image processing mode is not executed even after the valid time set in the setting step elapses; It is what has.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a block diagram for explaining the configuration of an image forming apparatus according to an embodiment of the present invention, and particularly shows a digital copying machine having a local area network (LAN) communication function.
[0018]
In the figure, the digital copying machine includes an operation unit 1000, a scanner unit 2000, a LAN interface unit (LAN I / F) 3000, a control unit 4000, and a printer unit 6000. The operation unit 1000, scanner unit 2000, LAN interface unit 3000, control Each unit 4000 includes a CPU, a RAM, a ROM, and the like, and each CPU performs operation control of components constituting each unit based on a control program stored in each ROM.
[0019]
The operation unit 1000 is a user interface unit of the image forming apparatus, and the user performs various settings such as reservation of an image processing mode by operating various keys shown in FIG. Reference numeral 1100 denotes an LCD which displays various messages. Reference numeral 1200 denotes a CPU that performs message display and recognition of various key operations of the user based on a program stored in the ROM 1400, and performs overall control of the operation unit 1000. Reference numeral 1300 denotes a RAM, which is a work area for the CPU 1200.
[0020]
The CPU 1200 develops bit patterns of various messages stored in the ROM 1400 in the RAM 1300, and transmits the developed bit patterns to the LCD 1100 to perform message display control. The CPU 1200 can perform data communication with a CPU 4100 of a control unit 4000 described later via a serial transmission line, and setting information such as an image processing mode set by various keys illustrated in FIG. 2 of the operation unit 1000 will be described later. It is stored in the RAM 4300 of the control unit 4000.
[0021]
The scanner unit 2000 scans a document on a platen glass surface 2 shown in FIG. Reference numeral 2100 denotes a document scanning system, which scans a document scanner 4 shown in FIG. 3 to be described later and inputs an image from an image sensor unit 9 (shown in FIG. 3). An image processing unit 2500 performs image processing based on an image processing mode set on an image signal input by the document scanning system 2100 or image data received via the LAN interface unit 3000 described later. The image processing unit 2500 can directly transfer image data stored in the RAM 2300 as an image memory to a printer unit 6000 described later.
[0022]
Reference numeral 2200 denotes a CPU, which controls the document scanning of the document scanning system 2100 and various image processes of the image processing unit 2500 based on a program stored in the ROM 2400, thereby controlling the scanner unit 2000 overall. Reference numeral 2300 denotes a RAM, which is a work area for the CPU 2200. The RAM 2300 is an image memory for storing a plurality of pages of document images scanned by the document scanning system 2100 or image data received via the LAN interface unit 3000 described later. The CPU 2200 is connected to a local bus of the control unit 4000, which will be described later, and can communicate with the CPU 4100 of the control unit 4000 based on, for example, a protocol defined by IEEE802.
[0023]
The LAN interface unit 3000 controls communication between the image forming apparatus and a local area network (LAN), for example, Ethernet. A LAN controller 3200 includes a CPU, a program ROM, a working RAM, and a FIFO, and performs overall control in the LAN interface unit 3000. The FIFO is for temporarily storing data at the time of transmission / reception, and by increasing the capacity of the FIFO, it becomes possible to cope with communication with a higher transfer rate.
[0024]
Reference numeral 3300 denotes a bus controller, which is connected to a local bus of the control unit 4000 described later, and performs communication control based on a protocol defined by, for example, IEEE 802 with the CPU 4100 of the control unit 4000. Reference numeral 3400 denotes a LAN connector which performs data transmission / reception with a LAN such as Ethernet.
[0025]
A serial interface (I / F) 3100 performs serial data transmission / reception, collision detection represented by CSMA / CD (Carrier Sense Multiple Access / Collision Detection), and the like. Here, for example, data processed in the LAN controller 3200 is converted into a data format for Ethernet by Manchester code, and data on the Ethernet is converted into a data format in the LAN controller 3200 by Manchester decoding. Process. Note that the data converted into the Ethernet data format by the serial interface 3100 is sent to the Ethernet via the LAN connector 3400.
[0026]
The control unit 4000 performs overall control of the entire image forming apparatus. Reference numeral 4200 denotes an I / O that communicates with the printer unit 6000. Reference numeral 4100 denotes a CPU. The operation unit 1000 is connected via a serial transmission line directly connected to the CPU 1200 of the operation unit 1000 based on a program stored in the ROM 4400, and the scanner unit 2000 and the LAN interface unit 3000 are connected via a bus. The printer unit 6000 is controlled via / O4200.
[0027]
A RAM 4300 is a work area for the CPU 4100. The RAM 4300 is backed up by a battery so that the stored contents are not lost even when the power of the copying apparatus is cut off.
[0028]
The local bus of the control unit 4000 is responsible for IEEE 802 medium access control (MAC), and the CPU 4100 accesses the LAN interface unit 3000 through a specific I / O space. The bus controller 3300 of the LAN interface unit 3000 is used for data transfer at this time, and the CPU 4100 attaches the LAN interface unit 3000 to acquire various settings such as reservation of an image processing mode transferred from the host computer, and the RAM 4300. To store.
[0029]
Further, the CPU 4100 communicates with the CPU 1200 of the operation unit 1000 via a serial transmission line, acquires various settings such as image processing mode reservation set by the operation unit 1000, and stores them in the RAM 4300.
[0030]
A printer unit 6000 is a printing unit, and 6200 is a paper conveyance unit, which controls conveyance of the recording medium. Further, the paper transport unit 6200 detects a paper jam or the like by a sensor described later, and notifies the I / O 4200 of the control unit 4000. An image forming unit 6100 forms an image on a recording medium conveyed by the paper conveying unit 6200 based on image data transferred from the RAM 2300 of the scanner unit 2000 as an image memory.
[0031]
Note that the LAN interface unit 3000 employed in the present embodiment realizes Ethernet LAN connection and uses an I / O method for data communication between the CPU 4100 of the control unit 4000 and the LAN interface unit 3000 that controls the copying operation. However, it is obvious that other LAN connection methods such as a token ring method and a memory sharing method may be adopted in the present invention.
[0032]
Hereinafter, the message display operation of the operation unit 1000 will be described.
For example, when a paper jam occurs in the paper transport unit 6200 of the printer unit 6000, that is, when paper remains in the paper transport unit at the scheduled copy end time, the CPU 4100 of the control unit 4000 receives a sensor input from the I / O 4200. A paper presence state is detected, and a paper jam message number is notified to the CPU 1200 of the operation unit 1000. Next, the CPU 1200 of the operation unit 1000 reads a character code string corresponding to the paper jam message number stored in the ROM 1400, searches the ROM 1400 for a character pattern in bitmap format corresponding to each character code, and the pattern. Is expanded in the RAM 1300, and the CPU 1200 transfers the contents expanded in the RAM 1300 to the LCD 1100, and the display of the character string (message) is completed.
[0033]
2 is a plan view for explaining the configuration of the operation unit 1000 shown in FIG. 1, and the same components as those in FIG. 1 are denoted by the same reference numerals.
[0034]
In the figure, reference numeral 5001 denotes a power switch, which controls energization to each unit in the image forming apparatus. A reset key 5002 operates as a key for returning to the standard mode during standby. Reference numeral 5003 denotes a copy start key for executing a copy operation. Reference numeral 5024 denotes a numeric keypad which is used to input numerical values such as the number of copies. Reference numeral 5004 denotes a clear key, which is used to clear a numerical value input with the numeric keypad 5024.
[0035]
Reference numeral 5005 denotes an ID key. Setting and execution of a copying operation and reservation of an image processing mode are performed unless specific identification data such as reservation name data (user ID, user name), password data (password), etc. is input after the ID key is operated. By disabling the setting, it is possible to permit only a specific operator to use the copying machine and reserve, modify, and delete (cancel) the image processing mode.
[0036]
Also, the user can input the password data or the reservation person name data as identification data, and the input password data or the reservation person name data and the image formation mode are set when the image formation mode reservation is set. Even if it is configured to check whether the image processing mode reservation correction and reservation deletion are permitted by collating with the data, the password data and the reservation name data are input by the user, and the input password data and the prediction name data are input. And the password data and reservation person name data input at the time of setting the image forming mode reservation may be compared to determine whether or not to permit reservation correction and reservation deletion in the image processing mode.
[0037]
Furthermore, an administrator who can execute correction and deletion of the image forming mode set by all users may be set.
[0038]
Reference numeral 5006 denotes a stop key which is used when copying is interrupted or stopped. Reference numeral 5007 denotes a guide key which is used to know each function. Reference numeral 5008 denotes an up cursor key which is used to move the pointer upward on each function setting screen.
[0039]
Reference numeral 5009 denotes a down cursor key, which moves the pointer down on each function setting screen. Reference numeral 5010 denotes a right cursor key, which moves the pointer to the right on each function setting screen. Reference numeral 5011 denotes a left cursor key, which moves the pointer to the left on each function setting screen. Reference numeral 5012 denotes an OK key, which is operated when setting is approved on each function setting screen. Reference numeral 513 denotes an asterisk key which is used when setting an application mode or the like. A standard reduction key 5014 is used to reduce a standard-size original image to another standard size. Reference numeral 5015 denotes an equal magnification key, which is used when selecting an equal magnification copy. Reference numeral 5016 denotes a standard enlargement key, which is used to enlarge a standard-size original screen image to another standard size.
[0040]
Reference numeral 5017 denotes a cassette selection key for selecting a cassette stage for supplying transfer paper. A copy density adjustment key 5018 is operated to reduce the density. Reference numeral 5019 denotes an AE key which is used when the copy density is automatically adjusted with respect to the density of the original. A copy density adjustment key 5020 is used to increase the density. Reference numeral 5021 denotes a sorter key for designating the sorter operation. A preheat key 5022 is used to turn on / off the preheat mode. Reference numeral 5023 denotes an interrupt key, which is used when an image is formed by interrupting a job that is performing image formation.
[0041]
A marker processing key 5025 is operated when trimming, masking, and partial processing (contour processing, halftone processing, shadowing processing, negative / positive processing) are set. Reference numeral 5026 denotes a patterning processing key, which is used when a color is expressed by patterning or a color is expressed by a density difference. A color deletion key 5027 is used when a specific color on the original image is deleted. Reference numeral 5028 denotes an image quality key which is used to set the output image quality. Reference numeral 5029 denotes a negative / positive key which is used when performing negative / positive processing.
[0042]
An image create key 5030 is used when performing outline processing, shadowing processing, halftone processing, italics, mirror processing, and repeat processing. Reference numeral 5031 denotes a trimming key which is used when an area is designated and trimming is performed. Reference numeral 5032 denotes a masking key which is used when masking is performed by designating an area. Reference numeral 5033 denotes a partial processing key which designates an area and then designates partial processing (contour processing, halftone processing, shadow processing, negative / positive processing).
[0043]
Reference numeral 5034 denotes a frame erase key, which is used when performing frame erase according to the mode. For frame erase, sheet frame erase (creates a frame for the sheet size), original frame erase (creates a frame according to the original size, with original size specified), book frame erase (according to the book spread size) There are three types: book spread size with a frame and a space in the center).
[0044]
A binding margin key 5035 is used when a binding margin is to be created at one end of the sheet. Reference numeral 5036 denotes a movement key which is used when it is desired to move. The movement includes parallel movement (up / down / left / right), center movement, corner movement, and designated movement (point designation). Reference numeral 5037 denotes a zoom key. For example, the copy magnification can be set in increments of 1% within a range of 25% to 400%. Also, the copying magnification in the main scanning and sub-scanning two directions can be set independently. Reference numeral 5038 denotes an auto scaling key that automatically enlarges / reduces according to the size of the copy paper. In addition, the automatic magnification can be independently set for the copying magnification in the main scanning and sub-scanning directions.
[0045]
Reference numeral 5040 denotes a reduction layout key which is used when a plurality of originals are reduced and integrated on one output sheet. A continuous shooting key 5043 is used to perform continuous copying (page continuous shooting or double-sided continuous shooting) in which the copy area on the platen glass surface is divided into left and right parts and two copies are automatically made. Reference numeral 5044 denotes a double-sided key which is used when performing double-sided copying (single-sided double-sided, page continuous double-sided, double-sided double-sided). Reference numeral 5045 denotes a multiplex key, which is used when performing multiplex copying (multiplexing, page continuous shooting multiplex).
[0046]
A memory key 5046 is used to execute a copy mode (memory composition, area composition, watermark composition) using an image memory. Reference numeral 5047 denotes a projector key, which is operated when copying using a film projector. A printer key 5048 is operated when outputting image data transferred from an external device. Reference numeral 5050 denotes a reservation setting key, which is used when reservation, correction, and deletion (cancellation) of the image processing mode (JOB) are desired.
[0047]
A mode memory key 5051 is used when registering a set copy mode in the memory and when calling the registered copy mode. Reference numeral 5052 denotes a display screen that displays the status of the apparatus, the number of copies, the copy magnification, and the copy paper size, and the setting contents during the copy mode setting. In addition, when a situation in which the copying operation cannot be continued such as a paper jam occurs in the copying apparatus, a diagram, a moving image, and a sentence for explaining the coping method are displayed.
[0048]
When the user presses the reservation setting key 5050, the digital copying machine shown in FIG. 1 enters the reservation setting mode, and the user can set the image processing mode in detail by operating various keys.
[0049]
FIG. 3 is a cross-sectional view for explaining the configuration of the digital copying machine shown in FIG.
[0050]
In the figure, reference numeral 1 denotes a document feeder, which feeds documents placed on a document tray on the document feeder 1 one by one or two consecutively to a predetermined position on the platen glass surface 2. Then, the copied document is returned to a predetermined position in the document feeder 1. Reference numeral 4 denotes an original scanner, which includes an original irradiation lamp 3, a scanning mirror, and the like. An image sensor unit 9 includes a charge coupled device (hereinafter referred to as a CCD), and receives reflected light from a document imaged through each scanning mirror and lens, and is sequentially sent from the CCD. An electric signal corresponding to the image density is output to the image processing unit 2500. An exposure control unit 10 includes a laser scanner and irradiates the photoconductor 11 with a light beam modulated based on image data output from the image processing unit 2500 to form an electrostatic latent image.
[0051]
Reference numerals 12 and 13 denote phenomenon units, which visualize the electrostatic latent image formed on the photoreceptor 11 with a developer (toner). The developing units 12 and 13 are filled with developers of different colors. Reference numerals 14 and 15 denote transfer paper stacking units on which standard size transfer papers are stacked and stored. Reference numerals 25 and 26 denote feeding rollers, which are driven by driving means (not shown) to feed transfer paper from the transfer paper stacking sections 14 and 15. A registration roller 27 sends the transfer paper fed by the paper feed rollers 25 and 26 to the electrostatic latent image transfer unit at the timing of the image leading edge alignment with the image formed on the photoconductor 11.
[0052]
Reference numeral 16 denotes a transfer separation charger for transferring the toner image on the photoconductor 11 onto a transfer paper fed by a resist roller 27 and then separating the transfer paper from the photoconductor 11. A conveyor belt 28 conveys the transfer paper after the toner image is transferred. Reference numeral 17 denotes a fixing device that passes the transfer paper conveyed by the conveyance belt 28 between the heated upper and lower rollers to fix the toner image on the transfer paper. A paper discharge roller 18 discharges the transfer paper on which image formation has been completed to a paper discharge tray (not shown).
[0053]
A flapper 21 is rotated about the shaft 20 and is used to switch the conveyance direction of the transfer sheet on which one side is imaged when performing multiple / double-sided copying. A paper detection sensor 19 detects the transfer paper to be discharged. In addition to the paper detection sensor 19, paper detection sensors (not shown) are provided at various locations on the paper conveyance path inside the copying apparatus, and output signals thereof are input to the I / O 4200 of the control unit 4000 of the copying apparatus. .
[0054]
Reference numerals 22 to 24 denote transfer paper conveyance paths, which are used when multiple / double-sided image formation is performed. In the case of multiple image formation, the transfer paper is transported in the order of the flapper 21 and the transfer paper transport paths 22 and 23 and is fed again to the image forming unit. Further, when double-sided image formation is performed, the transfer paper that has passed through the flapper 21 is conveyed to the paper discharge roller 18, and after the switching of the flapper 21, is sequentially sent to the transfer paper conveyance paths 22, 23, and 24. Is re-fed.
[0055]
Further, in order to facilitate paper jam processing and apparatus maintenance, each part on the paper conveyance path is unitized so that a single unit can be pulled out to the entire surface of the apparatus. The exterior panel near each unit can be opened and closed.
[0056]
Further, the transfer paper stacking sections 14 and 15 can be pulled out independently in front of the apparatus. Further, the fixing device 17 to the paper discharge roller 18 have an integrated structure, and can be pulled out collectively (fixing unit). Further, the transfer paper transport paths 22, 23, and 24 can be pulled out of the apparatus as a tray unit.
[0057]
Each open / close section is provided with a switch-type sensor for detecting the open / close state, and the output signal is input to the I / O 4200, so that the CPU 4100 can constantly monitor the open / close state. .
[0058]
Hereinafter, the operation of each unit will be described.
[0059]
When the document is set at a predetermined position on the document table glass surface 2 by the document feeder 1, the scanner reciprocates in parallel with the document table glass surface 2, and the reflected light from the document is transmitted to the lens 8 through the mirror. It is guided and input to the image sensor unit 9. Next, the electrical signal corresponding to the pixel density output from the image sensor 9 is subjected to predetermined image processing by the image processing unit 2500 and then based on image data output from the image processing unit 2500. 10 irradiates the photoconductor 11 with a light beam to form an electrostatic latent image on the photoconductor 11. Next, the latent image on the photoconductor 11 is developed with toner by the developing units 12 and 13, transferred and fixed on the transfer paper to be fed, and then discharged.
[0060]
Here, in the case of multiple image formation, the transfer paper is transported in the order of the flapper 21 and the transfer paper transport paths 22 and 23 and is fed again to the image forming unit. In the case of double-sided image formation, the transfer paper passes through the flapper 21 and is then conveyed to the paper discharge roller 18. After the flapper 21 is switched, the transfer paper is sequentially sent to the transfer paper conveyance paths 22, 23, and 24, and is again sent to the image forming unit. Paper is fed.
[0061]
Although not shown in FIG. 3, the digital copying machine is connected to a LAN such as Ethernet by the LAN interface unit 3000 shown in FIG. 1, and receives image data transferred from an external device such as a host computer. Printing is possible.
[0062]
4 is a block diagram for explaining the configuration of the image processing unit 2500 of the scanner unit 2000 shown in FIG. 1, and the same components as those in FIG. 1 are denoted by the same reference numerals.
[0063]
In the figure, reference numeral 2502 denotes an A / D conversion unit, which scans a document image by a document scanning system 2100, is input to a CCD disposed in the image sensor unit 9, and is electrically supplied according to the density of pixels sequentially sent from the CCD. The signal (analog) is converted into a digital signal having a level corresponding to the density. Reference numeral 2503 denotes a black offset correction unit which corrects offset variation in black density of the CCD analog amplification unit.
[0064]
Reference numeral 2504 denotes a shading correction unit that corrects variations in the light amount distribution of the document illumination lamp (corrects the level of the digital signal) in the image signal output from the black offset correction unit 2503. A line memory (storage device) 2505 temporarily stores an image signal output from the shading correction unit 2504. Reference numeral 2507 denotes an original position recognizing unit that recognizes where the original is placed on the original platen glass surface 2 using the signal after shading correction.
[0065]
Reference numeral 2508 denotes a scaling / movement processing unit which performs image scaling / movement processing by changing the timing at which a signal is written to the line memory 2505 or the signal is read from the line memory 2505. Further, when the magnification / movement processing unit 2508 reads a signal from the line memory 2505, it performs a mirror image, folding, and repeat processing by changing the reading method. A sharpness / filter / contour processing unit 2506 calculates the density level for each pixel of the signal read from the line memory 2505.
[0066]
A density processing unit 2509 converts the level of the digital signal output from the sharpness / filter / contour processing unit 2506 according to the copy density setting information of the copying apparatus. Reference numeral 2510 denotes a trim / mask / negative / positive processing unit, in which a negative / positive processing for inverting the level of the digital signal output from the density processing unit 2509 and a signal in a designated region or a signal outside the region are designated. Trimming or masking to change to a different density level is performed.
[0067]
Reference numeral 2511 denotes an add-on processing unit, which reads information on a character designated from a memory in which character information is stored in advance, and instead of an image signal at a designated portion of an image signal output from a trim / mask / negative / positive processing unit 2510. Then, an 8-bit digital signal is output to the printer unit 6000. Reference numeral 2501 denotes a selector, which switches the output of image data read by the CCD and passed through the A / D conversion unit 2502, the black offset correction unit 2503, and the shading correction unit 2504 to the line memory 2505 or the CPU 2200.
[0068]
Hereinafter, the operation of each unit will be described.
[0069]
Two document images placed on the document table glass surface 2 are scanned by a document scanning system 2100 and input to a CCD disposed in the image sensor unit 9. An electrical signal (analog) corresponding to the density of pixels sequentially sent from the CCD is first converted into a digital signal at a level corresponding to the density by the A / D converter 2502. Thereafter, the black offset correction unit 2503 corrects the offset variation in the black density of the CCD analog amplification unit, and then the pudging correction unit 2503 corrects the variation in the light amount distribution of the original illumination lamp. Next, a signal output from the shading correction unit 2503 is temporarily stored in a line memory (storage device) 2505.
[0070]
The document position recognizing unit 2507 recognizes the position on the document table using the signal after shading correction, and the scaling / movement processing unit 2508 writes the signal to the line memory 2505, By changing the timing at which the signal is read from the line memory 2505, image scaling / movement processing is performed.
[0071]
Next, the signal read from the line memory is sent to the sharpness / filter / contour processing unit 2506, and the sharpness / filter / contour processing unit 2506 calculates the density level for each pixel, thereby calculating the sharpness, filter, and contour. Each of these processes is performed and output to the density processing unit 2509, and the level of the digital signal sent by the density processing unit 2509 is converted and output according to the copy density setting information of the copying apparatus.
[0072]
Further, the trim / mask, negative / positive processing unit 2510 performs negative / positive processing in which the level of the digital signal is inverted, trimming processing by changing the signal in the designated area or the signal outside the area to the designated density level. Alternatively, mask processing is performed, and the add-on processing unit 2511 reads out information of a specified character from a memory in which character information is stored in advance, and outputs an 8-bit digital signal instead of an image signal to the printer unit 6000. Then, the printer unit 600 turns on / off the laser based on the digital signal transmitted from the image processing unit 2500 to reproduce the bright part and the dark part on the photosensitive drum.
[0073]
The scanner unit 2000 has a RAM 2300 as an image memory for storing document image information for a plurality of pages, and stores document images scanned by the CCD and image data transferred from the host computer. Used for. For example, when the copying apparatus is operating in a remote control mode from an external apparatus, image data sent from the external apparatus via the LAN interface unit 3000 is stored in the RAM 2300 by the CPU 4100 and CPU 2200 of the control unit 4000. Transferred.
[0074]
Note that the CPU 4100 and the CPU 2200 of the control unit 4000 perform communication via a dual port RAM built in the CPU. The selector 2501 in the image processing unit 2500 is switched by the CPU 2200 in accordance with a command from the CPU 4100, and the bitmap data in the RAM 2300 is directly transferred to the printer unit 6000.
[0075]
Further, when the command transferred from the CPU 4100 of the control unit 4000 includes an image processing operation based on an image processing mode set by the operation unit 1000 or an external device and stored in the RAM 4300 of the control unit 4000, the image data Is transferred to the line memory 2505, and designated image processing is executed.
[0076]
The image data read by the CCD is sequentially processed by the image processing unit 2500, and then transferred and stored in the RAM 2300 as an image memory. The image data passes through the CPU 4100 of the control unit 4000 and the LAN interface unit 3000. Then, it can be sent to an external device. In this case, the selector 2501 is switched to the channel 2, and the analog signal from the CCD is transferred to the CPU 2200 via the A / D converter 2502, the black offset correction unit 2503, the shoeing correction unit 2504, and the selector 2501. The CPU 2200 sequentially stores data sent from the selector 2501 in an appropriate area in the RAM 2300 based on scanning position information in the document scanning system 2100 which is an optical scanning unit.
[0077]
Further, after the scanning is completed, the CPU 2200 notifies the CPU 4100 of the control unit 4000 of the scanning end. The CPU 4100 of the control unit 4000 transmits an image data collection request command in the RAM 2300 to the CPU 2200, and then transmits the image data transmitted from the CPU 2200 to the external device via the LAN interface unit 3000.
[0078]
As described above, the image forming apparatus functions as a digital printer, a digital document scanner, and a stand-alone digital copier as peripheral devices of the external apparatus. Switching control to each function is performed based on a control command transferred from an external device or an operation mode selection operation input from the operation unit 1000.
[0079]
The image output processing operation of the image forming apparatus according to the present invention will be described below with reference to the flowcharts of FIGS.
[0080]
5 and 6 are flowcharts for explaining the image output processing procedure of the image forming apparatus according to the present invention, which is executed by the CPU 4100 based on a program stored in the ROM 4400 of the control unit 4000. In addition, (1)-(14) shows each step.
[0081]
First, it is checked whether there is a new request (image processing mode reservation setting) from the host computer via the operation unit 1000 or the LAN interface unit 3000 (1), and there is no new request (image processing mode reservation setting). Is determined, it is determined whether or not output request JOB queuing still remains (that is, whether an image processing mode in which an image has not yet been output is stored in the RAM 4300) (4). If it is determined, the process proceeds to step (5), and if it is determined that it does not remain, the process proceeds to step (14).
[0082]
On the other hand, if it is determined in step (1) that there is a new request (image processing mode reservation setting), the new request (registration) is analyzed (reserved image processing mode is analyzed) and the number of output sheets The image information signal, the priority order, and the like are reconstructed to create new request JOB data (2). Next, the new request JOB data reconstructed in the step (2) is linked to the queuing of the output request JOB (3). In other words, the image processing mode newly set for reservation is stored in the RAM 4300 together with the image processing mode set for reservation in advance as queue structure data.
[0083]
Next, it is checked whether or not there is a registered JOB deletion request request (deletion (cancellation) setting of reserved image processing mode) (5), and a deletion request (reserved image processing mode setting) is checked. If it is determined that there is (delete setting), the image processing mode is deleted (cancel) (6) by separating the job for which deletion is requested from the queuing of the output request job, and the process returns to step (1).
[0084]
On the other hand, if it is determined in step (5) that there is no registered JOB deletion request request (deletion (cancellation) setting for the reserved image processing mode), a registered JOB modification request request It is checked whether there is (revision setting for image processing mode set for reservation) (7). If it is determined that the correction request is not (revision setting for image processing mode set for reservation), step (9 ).
[0085]
On the other hand, if it is determined in step (7) that there is a registered JOB modification request (revision setting for the reserved image processing mode), the modification requested JOB is temporarily set in the output request JOB. The job data is separated from the queuing, the JOB data is corrected in accordance with the correction request (revision setting of the reserved image processing mode), and the output request JOB is queued again (8).
[0086]
Next, all the JOB (reserved image processing mode) connected to the queuing of the output request JOB is checked, and the JOB (image processing mode) having a high priority by setting the output request time, the management effective time, etc. Reserving the image processing mode that has passed the search and management valid time is invalidated (separated from the queue of the output request JOB). The timer update process of the queuing job is performed (9), and the priority order retrieved in step (9) is set. It is determined whether or not there is a high JOB (image processing mode) (10), and an image output of a high-priority job (JOB (image processing mode) when it is determined that there is an image processing mode)) Output processing for one sheet is performed (11), and the process proceeds to step (13).
[0087]
On the other hand, if it is determined in step (10) that there is a job (image processing mode) with a high priority, output processing for one image output of the job (image processing mode) queued first. (12) and go to step (13).
[0088]
For the job (image processing mode) output in step (11) or step (12), one output image is subtracted from the total number of output images (13). If the JOB (image processing mode) ends with the output image, the JOB is disconnected from the queuing, the image processing mode is deleted, and the process proceeds to step (14).
[0089]
Next, it is determined whether or not the output request queuing is empty (the image processing mode in which the image is not yet output is stored in the RAM 4300), and the end of the processing is determined (14). If it is empty, the process is terminated. If output request queuing still exists, the process returns to step (1) to perform the process again.
[0090]
As a timing for starting the processing operation shown in the flowchart, the operation is started when a new output request is registered (the image processing mode is reserved). However, it excludes when already operating.
[0091]
The reservation processing operation of the image forming apparatus according to the present invention will be described below with reference to the flowchart of FIG.
[0092]
FIG. 7 is a flowchart for explaining the image processing mode reservation processing procedure of the image forming apparatus according to the present invention, and the job reservation, correction, and deletion processing executed by the CPU 4100 based on the program stored in the ROM 4400 of the control unit 4000. Corresponding to In addition, (1)-(16) shows each step.
[0093]
First, when a reservation setting key 5050 on the operation unit is input or a request for image processing mode reservation setting or the like is input from the computer side via the LAN interface unit 3000, the input request content is set as an image processing mode reservation setting. It is determined whether or not it is a process (1), and if it is determined that the requested content is a reservation setting process in the image processing mode, a user input of a password (password) or a user name (or user ID) for making a reservation is performed. This is performed from the operation unit 1000 or the host computer (2), and then the user performs image processing mode reservation settings (setting of the number of sheets, image forming mode, output paper, etc.) (3).
[0094]
Next, an input as to whether or not to set the completion time is displayed on the LCD 1100 of the operation unit 1000 or the display unit of the host computer to prompt the user and whether or not to set the completion time based on the user input. A determination is made (4). If it is input that the completion time is not set, the process proceeds to step (6). If the completion time is set, the output completion time is set (5). Here, the time setting is a mode in which the time is set so that the output is completed by a certain time, for example, although it is not necessary to output immediately.
[0095]
Next, the user is prompted to input whether or not to set the effective time, and it is determined whether or not to set the effective time based on the user input (6). If it is input that the effective time is not set, the process proceeds to step (8). If the effective time is set, the effective time is set (7). Here, the valid time setting means that if the user can output within a certain period of time, he / she wants to output, but does not need to output otherwise (the image processing mode reservation setting is invalidated). This setting is performed.
[0096]
Next, reservation job data is constructed based on the reserved image processing mode, the image output processing task shown in FIGS. 5 and 6 is started (if it has not been started yet), and a new reservation request is displayed as an image. This is performed for the output processing task (reservation registration) (8), and the processing is terminated.
[0097]
On the other hand, if it is determined in step (1) that the input request content is not the reservation setting process in the image processing mode, the input request content is in the image processing mode in which the reservation setting is reserved (the JOB registered for reservation). It is determined whether or not it is a deletion (cancellation) process (9), and if it is determined that the process is a deletion process for a reserved image processing mode (JOB registered for reservation), a reservation deletion (cancellation) process is performed. The user inputs a password (password) or a user name (or user ID) to perform (10). By inputting the password or the user name, it is possible to prohibit other users from performing the reservation deletion (cancellation) process.
[0098]
Next, the image processing mode (JOB information) set for reservation is displayed on the LCD 1100 (or the display unit on the host computer side) that is the display unit of the operation unit, and the image processing mode (reservation) that the user deletes (cancels). (When there are a plurality of set image processing modes (JOB)) (11), and a request to delete the selected image processing mode (JOB) is sent to the image output processing task shown in FIGS. (Deletion registration) (12), and the process ends.
[0099]
On the other hand, if it is determined in step (9) that the input request content is not the deletion (cancellation) processing of the image processing mode (JOB) registered for reservation, the image processing mode (JOB for which the request content is reserved for registration). ) Is determined (13). If it is determined that the reservation correction processing is to be performed, the password (password) or user name (or user ID) for performing the reservation correction processing is determined by the user. Input (14). By inputting the password or the user name, it is possible to prohibit other users from performing the reservation correction process.
[0100]
Next, the reserved image processing mode (JOB information) is displayed on the LCD 1100 (or the display unit on the host computer side) which is the display unit of the operation unit, and the image processing mode (reserved and set) which the user corrects is displayed. (When there are a plurality of image processing modes (JOB)) (15), and a correction request for the selected image processing mode (JOB) is made to the image output processing task shown in FIGS. (Registration) (16), the process is terminated.
[0101]
On the other hand, if it is determined in step (13) that the input request content is not a JOB correction process registered for reservation, the process ends.
[0102]
Through the above processing, it is possible to perform reservation setting, deletion (cancellation) setting, and correction setting of the image forming apparatus by remote processing via the operation unit 1000 or the LAN interface unit 3000, and work efficiently according to priority order. You can proceed.
[0103]
If the job (image processing mode) ends in the output image in step (13) shown in FIG. 5, an email indicating that the job (image processing mode) has ended is sent to step (2) in FIG. , (14) can be easily put in control of returning (or displaying on the LCD 1100 of the operation unit 1000) to the name (the user of the host computer who reserved the image processing mode).
[0104]
Thereby, the user can recognize the end of the output of the reserved image without monitoring the end of the image output as needed.
[0105]
In addition, if the reservation of the image processing mode after the management valid time has been invalidated in step (9) shown in FIGS. 5 and 6, an e-mail indicating that the reservation is invalid for JOB (image processing mode) 7 can be easily put in a control for returning (or displaying on the LCD 1100 of the operation unit 1000) to the name (the user of the host computer who reserved the image processing mode) input in step (10) of FIG. Can be achieved.
[0106]
Note that, as the timing for starting the processing operation shown in the flowchart, the operation is started when processing such as image processing mode reservation setting is performed from the host computer or the like via the operation unit 1000 or the LAN interface unit 3000.
[0107]
In the reservation processing in the image processing mode shown in the flowchart of FIG. 7, the password data or reservation person name data is input as identification data to the user, and the input password data or reservation person name data and image formation are performed. Although the configuration has been shown in which the mode is compared with the password data or reservation name data input at the time of image formation mode reservation setting, the image processing mode reservation correction and reservation deletion permission are determined, but the password data and reservation name data The user can input the password and collate the entered password data and person name data with the password data and person name data entered at the time of image formation mode reservation setting, and permit image processing mode reservation correction and reservation deletion permission. You may comprise so that it may determine.
[0108]
Thereby, it is possible to reliably prevent the user from canceling, modifying, changing, or deleting the image processing mode set by another user by mistake.
[0109]
Further, by setting the output time, it is possible to form an image preferentially according to the user's intention or prioritize other image formation.
[0110]
Furthermore, by setting the effective time, it is possible to prevent execution of image formation that has become unnecessary due to excessive time.
[0111]
As described above, it is possible to freely modify and change the processing order of the reserved image processing mode, and to efficiently form an image in the optimum order intended by the user.
[0112]
As described above, a storage medium storing software program codes for realizing the functions of the above-described embodiments is supplied to the system or apparatus, and the computer (or CPU or MPU) of the system or apparatus stores the storage medium in the storage medium. It goes without saying that the object of the present invention can also be achieved by reading and executing the program code.
[0113]
In this case, the program code itself read from the storage medium realizes the novel function of the present invention, and the storage medium storing the program code constitutes the present invention.
[0114]
As a storage medium for supplying the program code, for example, a floppy disk, a hard disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a magnetic tape, a nonvolatile memory card, a ROM, an EEPROM, or the like is used. it can.
[0115]
Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also an OS (operating system) or the like running on the computer based on the instruction of the program code. It goes without saying that a case where the function of the above-described embodiment is realized by performing part or all of the actual processing and the processing is included.
[0116]
Further, after the program code read from the storage medium is written to a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, the function expansion is performed based on the instruction of the program code. It goes without saying that the case where the CPU or the like provided in the board or the function expansion unit performs part or all of the actual processing and the functions of the above-described embodiments are realized by the processing.
[0117]
Further, the present invention may be applied to a system composed of a plurality of devices or an apparatus composed of a single device. Needless to say, the present invention can be applied to a case where the present invention is achieved by supplying a program to a system or apparatus. In this case, by reading the storage medium storing the program represented by the software for achieving the present invention into the system or apparatus, the system or apparatus can enjoy the effects of the present invention. .
[0118]
Furthermore, by downloading and reading a program represented by software for achieving the present invention from a database on a network by a communication program, the system or apparatus can enjoy the effects of the present invention. .
[0119]
【The invention's effect】
As explained above, Clearly According to The image processing modes that have been set for reservation can be executed in the order according to their contents, and by setting the effective time of the reservation setting, the reservation setting remains even though it is not executed. Can prevent .
[0128]
Therefore, it is possible to freely modify and change the processing order of the image processing modes set for reservation, and to efficiently form images in the optimum order intended by the user.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a configuration of an image forming apparatus according to an embodiment of the present invention.
FIG. 2 is a plan view illustrating the configuration of an operation unit illustrated in FIG.
3 is a cross-sectional view illustrating the configuration of the digital copying machine shown in FIG.
4 is a block diagram illustrating a configuration of an image processing unit of the scanner unit illustrated in FIG. 1. FIG.
FIG. 5 is a flowchart illustrating an image output processing procedure of the image forming apparatus according to the present invention.
FIG. 6 is a flowchart illustrating an image output processing procedure of the image forming apparatus according to the present invention.
FIG. 7 is a flowchart illustrating an image processing mode reservation setting process procedure of the image forming apparatus according to the present invention.
[Explanation of symbols]
1000 operation unit
2000 Scanner section
2300 RAM
2500 Image processing unit
3000 LAN interface (LAN I / F)
4000 control unit
4100 CPU
4200 I / O
4300 RAM
4400 ROM
6000 printer

Claims (8)

Image storage means for storing first image data input from the information processing apparatus via a predetermined communication medium or second image data obtained by optically reading a document image;
Image forming means for forming an image on a recording medium based on the first or second image data stored in the image storage means;
The together during said image forming means by the image storage means based on said first or second image data stored in the image formation, the reservation setting an image processing mode for said first or second image data subsequent A setting means for setting the valid time of the reservation setting ;
Image processing mode storage means for storing the image processing mode reserved by the setting means;
Determining means for analyzing whether or not there is an image processing mode to be preferentially executed by analyzing a plurality of image processing modes stored in the image processing mode storage means at the end of image formation preceded by the image forming means; ,
Based on the determination result of the determination means, the execution order of the image processing modes stored in the image processing mode storage means is controlled, and the reserved image processing mode is set even after the valid time set by the setting means has elapsed. An image forming apparatus comprising: a control unit that invalidates the reservation setting when the operation is not executed .   2. The image formation according to claim 1, wherein the control unit determines the input identification data and cancels one of the reserved image processing modes stored in the image processing mode storage unit. apparatus.   2. The image according to claim 1, wherein the control means determines the inputted identification data and corrects one of the reserved image processing modes stored in the image processing mode storage means. Forming equipment.   4. The control unit according to claim 2, wherein the image processing mode stored and stored by collating reservation name data or personal identification data and identification data inputted is determined. The image forming apparatus described.   4. The control means according to claim 2 or 3, wherein the reservation means name data and the password data inputted and the identification data are collated to determine whether or not the image processing mode which is reserved and stored can be rewritten. The image forming apparatus described.   The control unit notifies the information processing apparatus of an end state of image formation based on the reserved image processing mode at the end of the image forming process of the image processing mode reserved from the information processing apparatus. The image forming apparatus according to claim 1.   The image forming apparatus according to claim 1, wherein the image processing mode includes setting of an image formation end time. During the image formation based on the first image data input via a predetermined communication medium or the second image data obtained by optically reading a document image, the subsequent first or second image data A setting step for setting an image processing mode and setting an effective time of the reservation setting ;
A registration step of registering the reserved image processing mode;
A determination step of determining whether there is an image processing mode to be preferentially executed by analyzing the plurality of registered image processing modes at the end of the preceding image formation;
An output step of changing an execution order of the stored image processing modes based on the determination result and outputting an image based on the first or second image data ;
And a processing step of invalidating the reservation setting when the reserved image processing mode is not executed even after the valid time set in the setting step elapses .

Images