JP2004350076A - Image processor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image processor capable of preventing discontinuation and cancellation of an operation due to the shortage of capacity of a page memory. <P>SOLUTION: A selection screen of functions is constituted and displayed so that: the capacity of the loaded page memory is detected when power is turned ON, etc.; whether the individual functions provided to the image processor can be performed with the memory capacity is judged; and a user can select only functions which can be performed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an image processing apparatus that realizes various functions using a page memory in which image data is developed, such as a color digital copying machine.
[0002]
[Prior art]
2. Description of the Related Art In an image processing apparatus such as a digital copying machine, various functions are realized by developing image data obtained by reading an original in a page memory. For example, a page memory is used to realize a function of reading four originals, laying out and recording these on one page, and an overlay function of superimposing a plurality of original images.
[0003]
Further, when reading and copying originals one after another, a digital copying machine in which input image data is stored in a page memory without compression to improve processing efficiency is disclosed in Patent Document 1 below. . In this copying machine, if the page memory overflows during document reading, the reading operation and the operation of storing image data in the page memory are interrupted.
[0004]
[Patent Document 1]
JP-A-60-100873
[0005]
[Problems to be solved by the invention]
In a copying machine disclosed in Patent Document 1, in which a page memory is used as an area for storing uncompressed image data for a plurality of pages when originals are successively read and successively copied, a page memory is used. If the reading operation is interrupted when the data overflows, the copying function is not hindered. However, when a page memory is used to realize a function of reading four originals and laying out and laying them out on one page (4 in 1 function), the page memory becomes insufficient during the execution of the function. Then, the function itself cannot be realized.
[0006]
In particular, a color digital copying machine requires a page memory for each of the colors of yellow (Y), magenta (M), cyan (C), and black (K). When a copy operation using an application function such as the “4 in 1 function” is performed, the operation is interrupted or stopped due to insufficient memory. When the interruption is stopped due to insufficient memory, the image data being read is discarded, or the original being read is discharged from the automatic document feeder. For this reason, after resetting the original, the user has to perform the copy operation again, avoiding the function, and there is a problem that the copy operation becomes complicated and lacks convenience.
[0007]
The present invention has been made in view of such problems of the conventional technology, and has as its object to provide an image processing apparatus capable of preventing interruption of operation due to lack of page memory capacity. I have.
[0008]
[Means for Solving the Problems]
The gist of the present invention to achieve this object lies in the inventions in the following items.
[0009]
According to the first aspect of the present invention, in an image processing apparatus that realizes various functions using a page memory (104a) in which image data is expanded, a selection receiving unit (220) that receives selection of a function to be performed is mounted. Page memory capacity detecting means (111) for detecting the capacity of the page memory (104a) being used, and a function selectable through the selection receiving means (220). An image processing apparatus comprising: a function restriction unit (112) for restricting according to the capacity of the memory (104a).
[0010]
According to the above invention, the selectable functions are limited according to the capacity of the page memory (104a) mounted. This makes it impossible to select a function that cannot be performed with the current capacity of the page memory (104a), thereby preventing interruption of the operation due to lack of the page memory (104a). For example, it has a function of collectively laying out eight originals on one transfer paper and copying (8 in 1 function) and a function of collectively laying out four originals on one transfer paper and copying (4 in 1 function). In this case, when the capacity of the mounted page memory (104a) is small, the “4 in 1 function” can be executed, but the “8 in 1 function” may not be executed. In such a case, by restricting the user from selecting the “8 in 1 function”, it is possible to prevent a shortage of memory due to a shortage of memory during the execution of the function.
[0011]
According to a second aspect of the present invention, in an image processing apparatus that realizes various functions using a page memory (104a) in which image data is expanded, a selection receiving unit (220) that receives selection of a function to be performed is mounted. Page memory capacity detecting means (111) for detecting the capacity of the page memory (104a), page size recognizing means (28) for recognizing the page size of the image data to be processed, and the selection receiving means (220). A function limiting unit that limits selectable functions based on the capacity of the page memory (104a) detected by the page memory capacity detecting unit (111) and the page size recognized by the page size recognizing unit (28). 112).
[0012]
According to the above invention, selectable functions are limited based on the capacity of the mounted page memory (104a) and the page size of the image to be processed. For example, with the capacity of the page memory (104a) mounted, the “8 in 1 function” cannot be performed for an A4 document, but can be performed for a B5 document. In such a case, the function is not uniformly limited, and the availability of each function is determined in consideration of the page size of the image to be processed. Therefore, the range of selectable functions is limited to a necessary limit. Can be.
[0013]
The invention according to claim 3 is the image processing device according to claim 1 or 2, wherein only selectable functions among the various functions are presented to the user.
[0014]
According to the above invention, only selectable functions are presented to the user. Since the user can select all the presented functions, the function selecting operation becomes easy.
[0015]
The invention according to claim 4 is the image processing apparatus according to claim 1 or 2, wherein both selectable functions and unselectable functions are presented to the user in an identifiable manner.
[0016]
According to the above invention, both the selectable function and the non-selectable function are presented in an identifiable manner, so that the user can grasp what functions can be executed by adding the memory. it can. The functions that cannot be selected may be presented separately for each additional capacity of the page memory (104a) necessary for performing the function. For example, the background color of the selection switch may be made different for each required additional capacity.
[0017]
The invention according to claim 5, wherein the function restricting means (112) selects executable functions and sets them in a state that can be selected by a user. Processing device.
[0018]
According to the above invention, a function that can be executed with the capacity of the currently installed page memory (104a) is selected from all the functions of the apparatus, and only those functions can be selected by the user. Is set. For example, only selection buttons corresponding to selectable functions are displayed on the operation unit.
[0019]
The image processing apparatus according to claim 1 or 2, wherein the function restricting means (112) selects functions that cannot be executed and sets these functions so that the user cannot select them. It is.
[0020]
According to the present invention, functions that cannot be implemented with the capacity of the currently mounted page memory (104a) are selected, and these functions are set to a state where the user cannot select them. For example, while the selection buttons corresponding to all the functions of the device are displayed, if the user operates the selection buttons corresponding to the functions that cannot be performed among them, the user does not respond or the operation rejection sound is generated. For example, setting to the state.
[0021]
According to a seventh aspect of the present invention, there is provided the image processing apparatus according to the first, second, third, fourth, fifth, or sixth aspect, which handles a color image.
[0022]
According to the above invention, when a color image is handled, since image data is stored in the page memory (104a) for each color, the capacity of the page memory (104a) is likely to be insufficient, and the application of the present invention is suitable. .
[0023]
According to an eighth aspect of the present invention, there is provided an image processing apparatus, comprising: reading means capable of successively reading originals, wherein the image data to be processed is acquired by the reading means. Or the image processing device according to 7.
[0024]
According to the above invention, the interruption of the operation due to the shortage of the capacity of the page memory (104a) does not occur during the operation of reading the originals one after another, and the trouble of resetting the originals when the memory shortage occurs occurs. It can be omitted and convenience is improved.
[0025]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, various embodiments of the present invention will be described with reference to the drawings.
FIG. 2 shows a cross-sectional configuration of the image processing apparatus 10 according to the embodiment of the present invention. The image processing apparatus 10 is an apparatus called a color digital copying machine. The image processing apparatus 10 includes an automatic document feeder 20, a reading unit 30, and a printer unit 40. The automatic document feeder 20 has a function of feeding the documents 2 stacked on the document placing tray 21 one by one to a reading position of the reading unit 30 and discharging the read documents to the discharge tray 27. For double-sided originals, a function is provided in which, after one-sided reading, the front and back sides are reversed and sent to the reading unit 30 again.
[0026]
The automatic document feeder 20 has a document size sensor 28 that detects the size of a document stacked on the document tray 21. A paper feed roller 22 for sequentially feeding the originals stacked on the original placing tray 21 from the top, a contact roller 23 for allowing the original to pass through a contact glass 31 which is a reading position of the original while closely contacting the original, and a paper feed roller A guide roller 24 is provided for guiding the document fed by the guide 22 along the contact roller 23. Further, a switching claw 25 for switching the traveling direction of the document that has passed through the contact glass 31, a reversing roller 26 for reversing the front and back of the double-sided document, and a discharge tray 27 for discharging the document that has been read are provided. I have.
[0027]
The reading unit 30 has a function of reading a document in color. The reading unit 30 includes an exposure scanning unit 35 including a light source 33 and a mirror 34, a color line image sensor 36 that receives reflected light from a document and outputs an electric signal corresponding to the light intensity for each color, and a document. A condenser lens 37 for condensing the reflected light from the mirror to the line image sensor 36 and various mirrors 38 for forming an optical path for guiding the reflected light from the mirror 34 of the exposure scanning unit 35 to the line image sensor 36 Have.
[0028]
When reading a document fed by the automatic document feeder 20, the exposure scanning unit 35 moves to a reading position below the contact glass 31 and stops there, and reads the moving document conveyed thereon by the contact roller 23. It has become. When reading an original placed on the platen glass 32, the exposure scanning unit 35 moves along the lower surface of the platen glass 32 and reads a stationary original.
[0029]
The printer section 40 is called a tandem type color image processing apparatus, and has an endless belt-shaped intermediate transfer belt 41 and a plurality of image forming units 50Y to 50K each forming a single color image on the intermediate transfer belt 41. Paper feeding means 70 for feeding the transfer paper, transport means 80 for transporting the fed transfer paper, and a fixing device 42. Further, the image processing apparatus includes a main control unit 100 that controls the operation of the entire image processing apparatus.
[0030]
The image forming unit 50Y forms a yellow (Y) color image on the intermediate transfer belt 41, and the image forming unit 50M forms a magenta (M) color image on the intermediate transfer belt 41. The image forming unit 50C forms a cyan (C) color image on the intermediate transfer belt 41, and the image forming unit 50K forms a black color image on the intermediate transfer belt 41.
[0031]
The image forming unit 50Y includes a cylindrical photosensitive member 51Y as an electrostatic latent image carrier on which an electrostatic latent image is formed, a charging device 52Y disposed around the photosensitive member 51Y, a developing device 53Y, and a cleaning device. 54Y. Further, a laser unit, a polygon mirror, and a laser unit 55Y including various lenses and mirrors are provided.
[0032]
The photoconductor 51Y is driven by a driving unit (not shown) to rotate in a certain direction (the direction of arrow A in the figure), and the charging device 52Y uniformly charges the photoconductor 51Y. The laser unit 55Y forms an electrostatic latent image on the photoconductor 51Y by scanning the uniformly charged surface of the photoconductor 51Y with a laser beam that is turned on / off according to yellow image data. . The developing device 50Y visualizes the electrostatic latent image on the photoconductor 51Y with yellow toner. The toner image formed on the surface of the photoreceptor 51Y is transferred to the intermediate transfer belt 41 at a location where it contacts the intermediate transfer belt 41. The cleaning device 54Y has a function of removing and collecting the toner remaining on the surface of the photoconductor 51Y after transfer by rubbing with a blade or the like.
[0033]
The image forming unit 50M, the image forming unit 50C, and the image forming unit 50K are different from each other in that the toner colors are different and that the laser light is turned on / off in the image data corresponding to each color. And the same description is omitted. Note that the same components have the same numerals, and the subscripts are replaced with Y, M, C, and K.
[0034]
The intermediate transfer belt 41 is rotatably supported by winding a plurality of rollers. The intermediate transfer belt 41 rotates in a direction indicated by an arrow B by a driving unit (not shown). In the process of circling, images of respective colors are formed on the intermediate transfer belt 41 in the order of (Y), (M), (C), and (K) by the image forming units 50Y to 50K so that color images are synthesized. . This color image is transferred from the intermediate transfer belt 41 to a transfer sheet at a secondary transfer point C provided at the lower end of the circulation path of the intermediate transfer belt 41. The toner remaining on the intermediate transfer belt 41 after the transfer is removed by the cleaning device 44.
[0035]
The paper supply means 70 has a plurality of paper supply cassettes 71 and usually accommodates transfer papers of different sizes and paper types. The transfer paper stored in each paper feed cassette 71 is sent out to the transporting means 80 by the first paper feed roller 72 one by one from the top. The conveying means 80 includes a normal path 80a for passing the transfer paper from the paper feed cassette 71 through the secondary transfer location C and the fixing device 42 and discharging the transfer paper to a discharge tray outside the apparatus, and a transfer path for the transfer paper passing through the fixing device 42. After reversing the display, the reversing path 80b joins the normal path 80a again upstream of the secondary transfer point C. Each of the paths 80a and 80b has a number of transport rollers 81 at intervals shorter than the size of the transfer paper of the minimum size in the feed direction.
[0036]
FIG. 3 is a block diagram showing an electrical configuration of the image processing apparatus 10 which is a color digital copying machine. The automatic document feeder 20 includes an ADF control unit 200 that controls a drive unit (not shown). The reading unit 30 includes a line image sensor 36 and a scanner control unit 210. The scanner control unit 210 performs lighting control of the light source 33, movement control of the exposure scanning unit 35, and the like. The operation display unit 220 has a function of receiving various operations by the user and displaying various information to the user. The operation display unit 220 includes a display unit 221 including a liquid crystal display, an operation unit 222 including touch switches and other switches laid on the screen, and an operation control unit that controls operations of the display unit 221 and the operation unit 222. 223. The operation display unit 220 functions as a selection receiving unit.
[0037]
The printer unit 40 includes laser units 55Y to 55K for each color, and a printer control unit 230. The printer control unit 230 has functions of controlling the image forming units 50Y to 50K, controlling the rotation of the intermediate transfer belt, and controlling the operations of the fixing device 42, the sheet feeding unit 70, the conveying unit 80, and the like. The operation display unit 220, the scanner control unit 210, the operation display unit 220, and the printer control unit 230 are each composed of a circuit having a CPU, a ROM, and a RAM as main components, and various controls are executed according to programs stored in the ROM. .
[0038]
The main control unit 100 has a function of totally controlling the operation of the image processing apparatus 10. The main control unit 100 includes a read processing unit 101, an image processing unit 102, a compression / expansion unit 103, an image memory 104, a write processing unit 105, an image control CPU 110, a program memory 106, a system memory 107, , A nonvolatile memory 108, and an I / O port 109.
[0039]
The reading processing unit 101 performs a function of performing enlargement processing, mirror image processing, binarization processing by error diffusion, and the like on image data output from the reading unit 30. The compression / decompression unit 103 has a function of compressing binarized image data and decompressing the compressed data. The compression / expansion unit 103 can execute the compression processing and the expansion processing independently and in parallel. The image memory 104 includes a page memory 104a for storing uncompressed image data and a compression memory 104b for storing compressed image data. The page memory 104a is provided with 128 Mbytes as standard, and can be added in units of 64 Mbytes or 128 Mbytes.
[0040]
The write processing unit 105 has a function of transmitting image data read and expanded from the image memory 104 to the laser units 55Y to 55K at a timing according to the operation of the printer unit 40. The image processing unit 102 controls the timing of reading / writing and refreshing from / to the image memory 104 composed of a dynamic RAM, compresses image data and stores the image data in the image memory 104, or reads and expands compressed data from the image memory 104. Timing control at the time of execution.
[0041]
The image processing unit 102 realizes various applied functions by performing image processing using the page memory 104a. For example, “8 in 1 function”, “4 in 1 function”, “overlay function”, “stamp function” and the like are realized. The “8 in 1 function” is a function of dividing one transfer sheet into eight regions, and reducing and laying out images obtained by reading eight originals in each region, and printing the images. The “4 in 1 function” is a function of dividing one transfer sheet into four regions, and reducing and laying out images obtained by reading four originals in each region and printing the images. The “overlay function” is a function of superimposing images obtained by reading two documents and combining them into one image. The “stamp function” is a function of superimposing and synthesizing an image obtained by reading a document with previously stored image data or image data corresponding to a date stamp.
[0042]
A normal color copy operation can be performed with a 128 Mbyte page memory that is mounted as a standard. To realize the “overlay function” and “stamp function”, it is necessary to add XXM bytes of page memory. To realize the “4in1 function” and “8in1 function”, add XXM bytes. It costs.
[0043]
The image control CPU 110 functions not only to control the entire operation of the image processing apparatus 10 but also to function as page memory capacity detection means 111 for detecting the capacity of the mounted page memory 104a. Further, it functions as a function restricting unit 112 for restricting functions that can be selected by the user according to the capacity of the page memory 104a. The program memory 106 is a memory for storing a program to be executed by the image control CPU 110, and the system memory 107 is a work memory for temporarily storing various data during execution of the program. The nonvolatile memory 108 is a memory for storing user data and system data that should be stored even after the power is turned off.
[0044]
The page memory capacity detecting unit 111 performs a process of writing predetermined data in various places in an address space where the page memory 104a is to be mounted, reading out the data, and comparing these data in a startup process when the power is turned on. The detected capacity of the page memory 104a is detected.
[0045]
The image processing apparatus 10 performs a reading operation of compressing image data obtained by reading a document by the reading unit 30 and storing the compressed image data in the compression memory 104b, and reading and decompressing image data after storing at least one page is completed. A normal copy function is realized by combining output operations for forming an output image. When performing a copy using an application function such as an "overlay function" or a "4in1 function", the page memory 104a is used as an area for decompressing and processing uncompressed image data. .
[0046]
FIG. 4 shows an example of the application function selection screen 300. When an application function selection button is operated on an operation screen (not shown), an application function selection screen 300 is displayed. FIG. 4 shows a state where the capacity of the page memory 104a is sufficient and the selection buttons 301 to 309 related to all the functions 1 to 9 are displayed so as to be selectable.
[0047]
FIG. 1 shows an operation flow for limiting the functions that can be selected by the user according to the capacity of the mounted page memory 104a. In the startup processing when the power of the image processing apparatus 10 is turned on, the capacity of the currently mounted page memory 104a is detected and recognized by the method described above (step S401). It is determined whether each function can be performed based on the detected capacity of the page memory 104a (steps S402 to S404).
[0048]
For example, a judgment table in which the function is associated with the capacity of the page memory required for executing the function is stored in advance, and by referring to the judgment table with the detected capacity, it is determined whether each function can be executed. judge. As a result of this determination, the screen data of the applied function selection screen is created so that only the selection buttons related to the functions that can be executed are displayed (step S405), and displayed (step S406).
[0049]
FIG. 5 shows an example of the application function selection screen 310 in which only selection buttons related to functions that can be executed with the capacity of the currently mounted page memory 104a are displayed. The user can operate any of the selection buttons 301 to 305 related to the displayed functions 1 to 5. The selection buttons 306 to 309 relating to the functions that cannot be performed are not displayed, and the user cannot select them.
[0050]
As described above, the capacity of the mounted page memory 104a is recognized and the user cannot select a function that cannot be performed with the capacity. Can be prevented from being interrupted. As a result, the document that has been interrupted due to lack of page memory capacity and has been ejected and discharged is set on the document tray 21 again, and the copy operation is restarted again without selecting the function that caused the interruption this time. This does not occur, and the operability and convenience of the image processing apparatus 10 are improved. Also, since only the selection buttons related to the functions that can be performed are displayed, it is not necessary for the user to judge whether or not the selection can be made by himself, and the operation of selecting the functions becomes easy.
[0051]
Next, a second embodiment of the present invention will be described. In the first embodiment, functions that can be executed with the capacity of the installed page memory 104a are selected, but in the second embodiment, functions that cannot be executed are selected.
[0052]
FIG. 6 illustrates an operation flow when the image processing apparatus according to the second embodiment restricts functions according to the capacity of the mounted page memory 104a. In the startup processing when the power of the image processing apparatus 10 is turned on, the capacity of the currently mounted page memory 104a is detected and recognized (step S501). Then, it is determined whether each function can be executed based on the detected capacity of the page memory 104a (steps S502 to S504).
[0053]
Based on this determination result, screen data of an applied function selection screen is displayed (step S505), which is displayed so that the user cannot select a selection button relating to a function that cannot be performed (step S505), and this is displayed (step S506).
[0054]
FIG. 7 shows an example of the application function selection screen 320 in which a selection button related to a function that cannot be executed with the capacity of the currently mounted page memory 104a is displayed so that the user cannot select it. On the applied function selection screen 320, both selection buttons 301 to 305 relating to functions 1 to 5 that can be performed and selection buttons 306 to 309 relating to functions 6 to 9 that cannot be performed are displayed in different modes. Here, the background of the selectable buttons 301 to 305 that can be executed is white, and a lattice pattern is displayed on the background of the select buttons 306 to 309 related to the function that cannot be executed. Although the selection buttons 306 to 309 relating to the functions that cannot be executed are displayed, they cannot be operated to select the functions.
[0055]
As described above, since the selection buttons related to both the selectable function and the non-selectable function are identifiably displayed in different modes, the user can determine what functions can be implemented by increasing the memory. The function can be selected while grasping.
[0056]
Next, a third embodiment of the present invention will be described. In the third embodiment, it is determined whether or not each function can be performed based on both the capacity of the page memory 104a mounted thereon and the size of the document set on the document placing tray 21. For example, depending on the capacity of the mounted page memory 104a, the “8 in 1 function” cannot be performed with an A4 size document, but may be performed with a B5 size document. In the third embodiment, in consideration of such a case, whether or not the function can be performed is determined more finely.
[0057]
FIG. 8 shows an operation flow when functions are restricted in the third embodiment. First, the capacity of the mounted page memory 104a is detected and recognized (step S601). Thereafter, when the document is set on the document tray 21 (step S602; Y), the document size is obtained by the document size sensor 28 (step S603). Whether or not each function can be performed is determined based on the document size and the capacity of the page memory 104a detected earlier. For example, it is preferable to prepare a determination table in which the required page memory capacity is associated with each function and each document size, and to make a determination by referring to this table.
[0058]
The functions executable by the above determination are extracted (step S604), and screen data of an applied function selection screen on which only selection buttons related to these functions are displayed (step S605), and displayed. Note that, as shown in FIG. 7, both functions that can be performed and functions that cannot be performed may be displayed so as to be identifiable in different modes.
[0059]
As described above, various embodiments of the present invention have been described with reference to the drawings. However, the specific configuration is not limited to these embodiments, and even if there are changes and additions without departing from the gist of the present invention, the present invention will be described. include. For example, in the embodiment, a color digital copying machine has been described as an example, but the present invention is not limited to this, and any image processing apparatus that realizes various functions using a page memory may be used. For example, a printer device having an “overlay function” or a “stamp function” may be used.
[0060]
Whether or not each function can be performed may be determined by, for example, including whether or not a color mode is used as an element. In addition, when the user operates a selection button related to a function that cannot be performed, a warning message indicating that the function cannot be performed due to lack of memory or a warning sound may be played.
[0061]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to the image processing apparatus concerning this invention, since the capacity of the mounted page memory is detected and the function which a user can select according to the capacity is limited, the page memory runs short during the execution of a certain function. Therefore, occurrence of a situation in which the operation is interrupted and stopped can be prevented beforehand.
[0062]
Restricting selectable functions based on the capacity of the installed page memory and the page size of the image to be processed is more restrictive than restricting functions solely by memory capacity. Can be minimized.
[0063]
In the case where only selectable functions are presented to the user, the user can select any of the presented functions, so that the function selecting operation becomes easy. On the other hand, in the case where both the selectable function and the non-selectable function are presented so as to be distinguishable, the user can understand the types of functions that can be performed by increasing the memory and perform the functions that can be performed. Can be selected.
[Brief description of the drawings]
FIG. 1 is a flowchart showing an operation when an image processing apparatus according to a first embodiment of the present invention restricts functions according to the capacity of a mounted page memory.
FIG. 2 is an explanatory diagram showing a cross section of a color digital copying machine as an image processing apparatus according to the embodiment of the present invention.
FIG. 3 is a block diagram illustrating an outline of a circuit configuration of a color digital copying machine as an image processing apparatus according to an embodiment of the present invention.
FIG. 4 is an explanatory diagram showing an example of an applied function selection screen displayed on the operation display unit of the image processing apparatus according to the embodiment of the present invention, in which all functions can be selected.
FIG. 5 is an explanatory diagram showing an example of an applied function selection screen displaying only selection buttons related to functions that can be performed;
FIG. 6 is a flowchart showing an operation when the image processing apparatus according to the second embodiment of the present invention limits functions according to the capacity of a mounted page memory.
FIG. 7 is an explanatory diagram showing an example of an applied function selection screen in which a selection button relating to an executable function and a selection button relating to an unexecutable function are identifiably displayed.
FIG. 8 is a flowchart showing an operation when the image processing apparatus according to the third embodiment of the present invention restricts functions according to the capacity of a mounted page memory and the set original size.
[Explanation of symbols]
10. Image processing device
20 ... automatic document feeder
21: Document loading tray
22 ... paper feed roller
23 ... Contact roller
24… Guide roller
25 ... switching claw
26 ... Reversing roller
27… Ejection tray
28 Document size sensor
30 ... Reading unit
31 ... Contact glass
32 ... Platen glass
33 ... light source
34 ... Mirror
35 Exposure scanning unit
36 ... Line image sensor
37 ... Condensing lens
38 ... Mirror
40 ... Printer section
41 ... Intermediate transfer belt
42 ... Fixing device
44 ... Cleaning device
50Y to 50K: Image forming unit
51Y to 51K: Photoconductor
52Y to 52K: Charging device
53Y to 53K: developing device
54Y-54K: Cleaning device
55Y-55K ... Laser unit
70 ... paper feeding means
71 ... paper cassette
72 ... First paper feed roller
80 ... Conveying means
80a ... Normal route
80b ... reversal path
81: Transport roller
100: Main control unit
101: reading processing unit
102: Image processing unit
103 ... compression / expansion unit
104 ... Image memory
104a: Page memory
104b: Compression memory
105 Write processing unit
106: Program memory
107: System memory
108: Non-volatile memory
109 ... I / O port
110 ... Image control CPU
111 ... Page memory capacity detecting means
112 ... Function limiting means
200: ADF control unit
210: Scanner control unit
220 ... operation display section
221 ... display section
222 ... operation unit
223 ... Operation control unit
230: Printer control unit
300, 310, 320 ... application function selection screen
301-309 ... Selection button

Claims (8)

In an image processing apparatus that realizes various functions using a page memory in which image data is expanded,
A selection receiving means for receiving selection of a function to be performed,
A page memory capacity detecting means for detecting the capacity of the mounted page memory;
An image processing apparatus comprising: a function limiting unit that limits a function selectable through the selection receiving unit in accordance with a page memory capacity detected by the page memory capacity detecting unit. In an image processing apparatus that realizes various functions using a page memory in which image data is expanded,
A selection receiving means for receiving selection of a function to be performed,
A page memory capacity detecting means for detecting the capacity of the mounted page memory;
A page size recognizing unit that recognizes a page size of the image data to be processed;
A function limiting unit that limits a function selectable through the selection receiving unit based on a capacity of the page memory detected by the page memory capacity detecting unit and a page size recognized by the page size recognizing unit. Characteristic image processing device. The image processing apparatus according to claim 1, wherein only selectable functions among the various functions are presented to a user. The image processing apparatus according to claim 1, wherein both a selectable function and a non-selectable function are presented to a user in an identifiable manner. The image processing apparatus according to claim 1, wherein the function restricting unit selects functions that can be executed, and sets the functions to be selectable by a user. The image processing apparatus according to claim 1, wherein the function restriction unit selects functions that cannot be performed and sets the functions to a state where the functions cannot be selected by a user. 7. The image processing apparatus according to claim 1, wherein the image processing apparatus handles a color image. Equipped with reading means that can read manuscripts one after another,
8. The image processing apparatus according to claim 1, wherein the image data to be processed is acquired by the reading unit.

Images