JP2008035263A - Image-forming device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image-forming device that can designate the color scheme of a completion of printing to the image data of an original having a plurality of color schemes before reading the original, and can shorten finish time. <P>SOLUTION: The image-forming device has an image formation section. The image formation section enables the completion of printing in different forms of at least full-color printing and monochrome printing to a full-color original on which a full-color image is formed. By the operation of an operation section 10, the state of the completion of printing in a plurality of originals having a different color scheme is designated to a designation color mode. Then, by using designation switches P1-P10, a page is designated, where the full-color original included in the original consisting of a plurality of pages is finished with full-color printing as it is. Color printing is performed to the full-color original of a designated page. The monochrome printing is performed to the full-color original of an undesignated page. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an image forming apparatus, and more particularly, to an image forming apparatus provided with an image forming section that enables non-monochrome printing and monochrome printing to be performed on image data read by an image reading section.

  Conventionally, an image is formed on the surface of a conveyance sheet based on image data of a document read by an image reading unit using a copying function, such as an image forming apparatus such as a copying machine or a multifunction machine having a copying function. Is well known.

  At this time, for example, the original read by the image reading unit is a monochrome original formed with an image formed in a single black color (including light and shade), a monochromatic original formed with a single color other than black, or a black + They are classified into two-color originals in which images are formed in a single color other than black (hereinafter, monocolor and two-color are collectively referred to as “color”) and full-color originals in which images are formed in three or more colors.

  When image forming processing is performed in the image forming apparatus using these monochrome originals, color originals, and full color originals, the mode setting in the image forming apparatus is changed to the monochrome mode, color mode, full color mode corresponding to each original type. By setting, a monochrome image, a color image, and a full color image having a color matching the original image are formed on the transport sheet.

  In addition, an image forming apparatus capable of forming such monochrome images, color images, and full-color images is installed in a convenience store or the like as a chargeable multifunction device or as a chargeable multifunction device based on a lease contract. For example, a charge for monochrome printing for forming a monochrome image (for example, 10 yen for all sizes), a charge for color printing for forming a color image (for example, 20 yen for all sizes), and a full color image are formed. The charge for full color printing (for example, 80 yen for B4 size and 150 yen for A3 size) can be set separately and used.

  However, in such a charged multifunction peripheral, for example, when an image of a plurality of pages of an original is read by an automatic document feeder (ADF) using the full color mode, all read originals are read. For example, if there are full-color originals only for some of the original pages and other originals are monochrome, the economic loss will be charged. There was a problem of becoming big.

  Therefore, in order to prevent such loss, image forming processing is performed by setting a mode for each document (or each document type) without using ADF. However, such work is very troublesome. It is.

  Therefore, when such a multi-page document includes at least two types of monochrome document, color document, and full-color document, the monochrome document is printed in monochrome by one document reading process using ADF, and the color document is Color printing, full-color originals can be full-color printing, and users can charge for each appropriate mode according to the original type without depending on a single mode (for example, full color mode) charging system. For the user, improvement in convenience and improvement in economic efficiency can be realized, and a highly versatile image forming apparatus can be obtained.

  It should be noted that such a technique can determine whether a document is a monochrome document, a color document, or a full-color document by determining whether there is a colored pixel (color arrangement pixel) on an image formed on the document. Is known as an auto color select (ACS) function for switching image forming processing in accordance with the determination result (see, for example, Patent Document 1).

  On the other hand, in such a color manuscript or a full color manuscript, for example, when using a manuscript for submission to a customer or the like and making a copy using the manuscript for a copy at hand, Color documents with company logo mark only in single color are printed in monochrome, full color documents including photographs are printed in full color, full color documents including color-coded graphs are printed in monochrome, etc. If it is possible to minimize the use of toner (ink), further economic burden can be reduced. A technique for obtaining a monochrome copy from a color document or a full-color document is well known.

Therefore, unlike the above-described ACS function (automatic color mode) that automatically identifies the color arrangement of the original image and performs copying, the ratio of the color arrangement pixels used in the full-color original read using the ADF is discriminated and determined. A technique for monochrome printing when coloration pixels are present at a ratio equal to or less than the value, and full color printing (or color printing) when coloration pixels are present at a ratio equal to or greater than a predetermined value (for example, patent literature) 2), or by determining the percentage of color scheme pixels used in a document read using ADF, and separating full-color images and monochrome images on a page-by-page basis and calculating charges, and if necessary, full-color images Has been proposed (see, for example, Patent Document 3) that can be selectively changed to form an image by monochrome printing.
JP 2002-15101 A Japanese Patent Laid-Open No. 2005-026788 JP 2003-244365 A

  However, in the image forming apparatus configured as described above, a full-color image is automatically converted into a monochrome print (Patent Document 2) or manually (Patent Document 3) regardless of whether the image forming apparatus is in Patent Document 2 or Patent Document 3. However, it is not possible to change between full-color printing and monochrome printing unless the original is read using ADF and the ratio of the color arrangement pixels is identified. The problem of needing has arisen.

  In the technique disclosed in Patent Document 2, since a full-color original is automatically printed in full color or monochrome according to the ratio of the color arrangement pixels, monochrome printing is performed up to what is desired to be finished by full-color printing. was there.

  Furthermore, in the technique disclosed in Patent Document 3, since it is impossible to designate the print-up unless all the originals are read once, more time is required for printing compared to the automatic sorting. End up.

  Therefore, in consideration of the above circumstances, the present invention provides an image forming apparatus that can specify a finished color scheme for image data of a plurality of color originals before reading the original, and can realize a reduction in finishing time. With the goal.

  An image forming apparatus of the present invention is an image forming apparatus provided with an image forming unit that enables printing in different forms of non-monochrome printing and monochrome printing on image data read by an image reading unit, The image reading unit includes a designation unit that designates a page to be finished by non-monochrome printing among non-monochrome originals included in a plurality of pages of originals before the original is read by the image reading unit.

  According to such a configuration, the finishing time can be shortened by designating a document page to be non-monochrome printed in advance for an image of a document with a plurality of colors.

  At this time, if the non-monochrome original includes either a monochromatic original composed of a single color other than black or a two-color original composed of a single color other than black + black, the designation means may select the monochromatic original or the two-color original. It is possible to specify a page for printing an original with the same color scheme.

  In addition, when the non-monochrome original includes a full-color original of three or more colors, the specifying unit can specify a page to be printed with the same color scheme on the full-color original.

  According to the image forming apparatus of the present invention, it is possible to specify the finished color scheme for the image data of a plurality of color scheme originals before reading the original, and it is possible to reduce the finishing time.

  Next, an image forming apparatus according to an embodiment of the present invention will be described with reference to the drawings.

(Overall configuration of image forming apparatus)
1 is an external perspective view of a multifunction peripheral as an image forming apparatus according to an embodiment of the present invention. FIG. 2 is a front view of an operation unit of the multifunction peripheral as an image forming apparatus according to an embodiment of the present invention. FIG. 4 is an explanatory diagram of a multifunction peripheral as an image forming apparatus according to an embodiment of the present invention, and FIG. 4 is a block diagram of a main part of the multifunction peripheral as an image forming apparatus according to an embodiment of the present invention.

  As shown in FIG. 1, a multifunction machine 1 as an image forming apparatus according to an embodiment of the present invention includes a main switch 3 provided on an upper side surface of an apparatus main body 2 and a plurality of units that can be pulled out from the front surface of the apparatus main body 2. Paper tray units 4, 5, 6, a manual paper tray 7 that can be opened and closed from the side of the apparatus body 2, an automatic document feeder (ADF) 8 for reading a document as a copying machine, a facsimile machine, and a scanner, a display It has a screen 9 and an operation unit 10 for setting and selecting various functions.

  Note that the shape, configuration, function, and the like of the multifunction machine 1 are not limited to those shown in the drawings. Further, for example, it does not hinder the installation of optional equipment such as a sorter.

  As shown in FIG. 2, the operation unit 10 is a function selection switch for selecting various functions (copying function, printer function, scanner function, facsimile function) of the multifunction device 1 adjacent to the display screen 9 as a full-color liquid crystal panel switch. 11, a numeric keypad 12 used for inputting numerical values such as the number of copies, enlargement / reduction ratio, destination telephone number, start switch 13 for executing a copy function or facsimile function (image formation start), a setting clear switch 14, a function A reset switch 15 and a mode selection switch 16 for selecting a finishing mode for a document (image data) when the copy function or the like is selected are provided. Note that the display screen 9 and the operation unit 10 also have operation functions for performing various settings such as paper size setting, density setting, duplex printing setting, and aggregation setting when using a copy function or the like.

  The mode selection switch 16 includes a monochrome mode designation switch 16a that executes a monochrome mode in which the printing of all documents is printed in monochrome, a full color mode designation switch 16b that executes a full color mode in which the printing of all documents is printed in full color, A color mode designating switch 16c that executes a color mode in which the color of all originals is printed, and an automatic color mode that automatically performs printing according to the color of the original for a mixed color original An automatic color mode specifying switch 16d for executing an automatic color mode, and a specified color mode specifying switch 16e for executing a specified color mode for executing image forming processing after specifying the number of pages (number of sheets) to be printed in full color. Yes. For example, even if the full color mode is designated, if the original is not a full color original, the printed image cannot be full color.

  Further, as shown in FIG. 3, the apparatus main body 2 has a document placement reading unit 17 such as a glass plate for manually setting a document and a document for reading a document using the ADF 8. In the case of reading the passage reading unit 18 and a document that is normally positioned below the document passage reading unit 18 and placed on the document placement reading unit 17, a right side of FIG. And a pair of fixed oblique mirrors 20 and 21 that reflect the light beam reflected by the oblique drive mirror 19 and the light beams reflected by these mirrors 19, 20, and 21. A line sensor (color CCD) 22 for reading a document image and an image data processing unit 23 for generating image data based on the read data read by the line sensor 22 are provided. The fixed oblique mirrors 20 and 21 may move in parallel with the oblique drive mirror 19. At this time, the moving distance of the fixed oblique mirrors 20 and 21 can be shortened to ½ of the moving distance of the oblique drive mirror 19 in consideration of the arrangement position of the line sensor 22.

  In addition to the read data read by the line sensor 22 described above, print command data from a personal computer or received data received through a facsimile line is input to the image data processing unit 23.

  Furthermore, the multi function device 1 displays an image on the surface of a transport sheet (not shown) sent from the paper tray units 4, 5, 6 or the manual paper tray 7 based on the image data generated by the image data processing unit 23. An image forming unit 24 to be formed, a fixing unit 25 for fixing the image on the surface of the transport sheet, and a discharge unit 27 for discharging the image-fixed transport sheet above the discharge tray 26 are provided.

  Here, the image forming unit 24 includes a plurality of image forming units 28 to 31 so that full color printing can be performed on the transport sheet.

  In this embodiment, the image forming units 28 to 31 are, in order from the upstream side in the sheet conveying direction, an image forming unit 28 for black (K), an image forming unit 29 for yellow (Y), and magenta (M). An image forming unit 30 for cyan and an image forming unit 31 for cyan (C) are arranged. The image forming units 28 to 31 store the toner for each color described above. If necessary, the toner is carried on drum-shaped photoreceptors 32 to 35 using amorphous silicon or the like as a photoreceptor. Is transferred onto a conveying sheet to form an unfixed toner image (an electrostatic latent image is visualized). The unfixed toner image is fixed by the fixing unit 25 and then discharged from the discharge unit 27 onto the discharge tray 26.

(Main function forms)
Hereinafter, main functional forms will be described. Here, the specific processing of the line sensor 22 and the image data processing unit 23 will be omitted.

(Copy function)
The multi-function device 1 uses the operation unit 10 in advance based on image data set by reading the original on the ADF 8 or by lifting the ADF 8 in a rotational manner and setting the original on the original placement reading unit 17. The printing process (image forming process) corresponding to the set conditions is performed.

(Printer function)
The multi-function device 1 is connected to a personal computer (not shown) by cable connection (including wireless or wired network LAN connection). Based on image data included in print command data output from the personal computer Print processing (image formation processing) is performed. At this time, various settings for image forming processing (for example, enlargement / reduction / consolidation, number of copies, etc.) are made using a printer driver for the multifunction machine 1 installed in a personal computer (including a network server). The data relating to these various settings is included as part of the print command data.

(Scanner function)
The multifunction machine 1 is connected to a personal computer (not shown) by cable connection (including wireless or wired network LAN connection), and sets a document to be read on the ADF 8 or lifts the ADF 8 in a rotating manner to place a document. The read original is set on the reading unit 17 and the read image data is output to a personal computer or the like connected by a cable. At this time, various settings (for example, resolution) for the image forming process are set using a scanner driver for the multifunction machine 1 installed in a personal computer (including a network server) or the like.

(Facsimile function)
The multifunction device 1 operates / designates the image data read by setting the read document on the ADF 8 or by lifting the ADF 8 in a rotating manner and setting the read document on the document placement reading unit 17. Facsimile transmission to the other party through the facsimile line. Further, a printing process (image forming process) is performed based on image data included in the received data received through the facsimile line. At this time, various settings for image forming processing (for example, destination setting) are for the multifunction device 1 installed in a personal computer (including a network server), etc., in addition to operation / designation in the operation unit 10. It is set using a facsimile driver (or printer driver). Therefore, it is possible to use a facsimile function by a personal computer or the like. The received data received from the other party through the facsimile line includes data concerning the other party's telephone number, paper size, number of transmissions, and the like.

(Image data processing)
On the other hand, in the image data processing unit 23, as shown in FIG. 4, the color arrangement is identified by the image analysis unit 36 having the ACS function and stored in the image data storage unit 37 in a state of being associated with each page. . In addition, the identification results of the color schemes identified by the image analysis unit 36 are classified into three types of full-color original, color original, and monochrome original in a state of being associated with each page, and are output to the control circuit unit 38. .

  Note that page-by-page association when the ADF 8 is used is associated by a counter 39 provided in the ADF 8.

  The control circuit unit 38 controls the image generation unit 40 that generates print data for actual image formation processing using the image data stored in the image data storage unit 37. The image generation unit 40 stores the print data for actual image formation processing in the print data storage unit 41, and outputs the print data to the LEDs 43 to 46 via the driver 42 based on the print data.

  The LEDs 43 to 46 form an electrostatic latent image on each of the photoconductors 32 to 35, and thereby toner adheres to each of the photoconductors 32 to 35.

  Further, since image data for the read image of the original is stored in the image data storage unit 37 and print data for actually forming an image is stored in the print data storage unit 41, a large number of copies are created. This is useful in some cases.

(Specific control example)
Hereinafter, a control example in the control circuit unit 38 in the image forming process of the present invention will be described by applying it during the copying function.

  5 to 7 show examples of control in the control circuit unit 38 according to an embodiment of the present invention. FIG. 5 is a flowchart of a copying function routine in the multifunction peripheral according to the embodiment of the present invention. FIG. FIG. 7 is an explanatory diagram of a display example of a display screen in a multifunction peripheral as an image forming apparatus according to an embodiment of the invention, and FIG. 7 is a flowchart of an image generation routine in the multifunction peripheral according to the embodiment of the present invention.

(Step S1)
In step S1, the designated color mode is activated in response to the operation of the designated color mode selection switch 16e of the mode selection switch 16, and for example, a message prompting the user to input the total number of pages scheduled to form an image on the display screen 9 or the like. Is displayed and the process proceeds to step S2.

(Step S2)
In step S2, along with the message display in step 1, for example, if the total number of pages to be formed using the numeric keypad 12 is input (for example, if there are 10 pages, “1” “0” of the numeric keypad 12). As shown in FIG. 6, frame-shaped designation switches P <b> 1 to P <b> 10 in which pages are ordered are displayed on the display screen 9.

  Here, by pressing the designation switches P1 to P10, the user associates the originals of the pages corresponding to the designation switches P1 to P10 so as to perform full color printing (or color printing). .

  Note that the finish-up selection switches 9a to 9c may be provided, and the designation switches P1 to P10 may be used to designate a finish other than full color after the page is designated by a pressing operation. Further, when the document has 10 pages or more, it can be operated by the change-over switches 9d and 9e so that the screen display can be switched back and forth in units of 10 pages.

  Further, this page designation may be designated only with the numeric keypad 12 without being displayed on the display screen 9. For example, if “1”, “#”, “5”, “#”, “1”, “2”, “#” are used with the numeric keypad 12, the first, fifth, and twelfth pages are printed in full color. (Or color printing) is specified.

  When input of these full-color (or color) pages is completed, the process proceeds to step S3.

(Step S3)
In step S 3, when a document in which a plurality of pages of monochrome documents or full-color documents are mixed is set in the ADF 8 and the start switch 13 is operated, an image of the document is passed to the line sensor 22 by passing through the document passage reading unit 18. After being read, the process proceeds to step S4.

(Step S4)
In step S4, the image read by the line sensor 22 is analyzed by the image analysis unit 36, the analysis result is output to the control circuit unit 38, and the process proceeds to step S5.

  It should be noted that when analyzing whether or not the document is a color document, a specific two colors (for example, black and red) are limited in advance, and only a document including the specific two colors may be defined as a color document. Is possible.

(Step S5)
In step S5, the read image analyzed by the image analysis unit 36 is stored in the image data storage unit 37 as image data associated with each page, and the process proceeds to step S6. Further, information relating to the document type (here, monochrome document, color document, full color document) in units of pages based on the reading result analyzed by the image analysis unit 36 is output to the control circuit unit 38.

(Step S6)
In step S6, the process of the image generation routine (steps S10 to S16) in FIG. 7 is executed. That is, the image data of the read image analyzed by the image analysis unit 36 (here, the image data matches the image data stored in the image data storage unit 37) is output to the image generation unit 40, and the image data is associated in units of pages. For the image data corresponding to the page specified in step S2, the same full color (or color) print data as the image data of the read image is generated, and the image data not corresponding to the page specified in step S2. Generates print data for monochrome printing, and proceeds to step S7.

(Step S7)
In step S7, the print data generated by the image generation unit 40 is stored in the print data storage unit 41, and the process proceeds to step S8.

(Step S8)
In step S8, the print data stored in the print data storage unit 42 is printed by operating the start switch 13 (or another print start switch) again.
(Step S9)
“In step S9, it is determined whether or not the processing in steps S3 to S8 has been executed for all pages. If it has been executed, the processing is terminated, and if not, the processing proceeds to step S3. In order to shorten the processing time, step S3 to step S5, step S6 to step S7, and step S8 may be executed in parallel.

(Image generation routine)
(Step S10)
In step S10, it is determined whether or not the page on which the image forming process is to be performed is a full-color document. If the page is a full-color document, the process proceeds to step S11. If the page is not a full-color document, the process proceeds to step S13. To do.

(Step S11)
In step S11, if the page to be subjected to the image forming process is a full-color original, it is determined whether or not it is a target page to be printed in full color as it is. Print data for printing is generated and stored in the print data storage unit 41. If it is not the target page for full color printing, the process proceeds to step S13.

(Step S13)
In step S13, it is determined whether or not the page on which the image forming process is to be performed is a color document. If the page is a color document, the process proceeds to step S14. If the page is not a color document, the process proceeds to step S16. To do.
(Step S14)
In step S14, when the page to be subjected to the image forming process is a color original, it is determined whether or not it is the target page to be color-printed as it is. Print data for printing is generated and stored in the print data storage unit 41. If it is not the target page to be color-printed, the process proceeds to step S16.

(Step S16)
In step S16, if the page on which the image forming process is to be performed is a monochrome original in steps S10, S11, and S13, and if the color original or the full color original is not the target page to be printed in color or full color, it is for monochrome printing. Print data is generated and stored in the print data storage unit 41.

  As described above, in the multifunction device 1 of the present invention, by specifying the page for full color printing (or color printing) in advance, the ratio of the color arrangement pixels is identified, or the original for specifying the full color printing is specified. Since it is not necessary to reduce the process of reading, displaying, and specifying, the finishing time can be shortened.

  In the above embodiment, the image forming apparatus of the present invention is applied to a multifunction machine having a copying function. However, it is needless to say that the image forming apparatus can be applied to a copying machine.

  Since a page for full-color printing (or color printing) is designated in advance before reading the original, based on the result of analysis by the image analysis unit 36, the full-color original or Full color printing or color printing on a color original as it is, and monochrome originals are subjected to image formation processing using the image data as they are, and only the full color original or color original that is not a specified page is used by print data generated by the image generation unit 40. It is also possible to perform real-time printing without executing data formation processing and storing data in the storage units 37 and 41.

  In order to reduce the printing fee, an upper limit may be set for the number of pages that can be designated for full color printing (or color printing) in step S2.

  Furthermore, in the above embodiment, the display screen 9 is a full color liquid crystal panel, but it may not be full color, such as using a monochrome liquid crystal panel.

  At this time, for example, in the preview screen (see FIG. 6) described in step S8 when a monochrome liquid crystal panel is used, a reduced version image (P1 to P1) using print data matching the document image in units of 10 pages. In addition to the lower part (or the upper part) of P10), a character such as “monochrome” in the case of a monochrome manuscript, a character such as “color” in the case of a color manuscript, and “full color” in the case of a full color manuscript. Etc. are respectively displayed. When the change is made by operating the selection switches 9a to 9c (step S9), the character display before the change is replaced with the character display after the change on the display screen 9.

1 is an external perspective view of a multifunction peripheral as an image forming apparatus according to an embodiment of the present invention. FIG. 2 is a front view of an operation unit of a multifunction peripheral as an image forming apparatus according to an embodiment of the present invention. 1 is an explanatory diagram of a multifunction peripheral as an image forming apparatus according to an embodiment of the present disclosure. 1 is a block diagram of a main part of a multifunction peripheral as an image forming apparatus according to an embodiment of the present invention. FIG. 6 is a flowchart of a copying function routine in a multifunction peripheral as an image forming apparatus according to an embodiment of the present invention. FIG. 8 is an explanatory diagram of a display example of a display screen in a multifunction peripheral as an image forming apparatus according to an embodiment of the present invention. FIG. 6 is a flowchart of an image generation routine in a multifunction peripheral as an image forming apparatus according to an embodiment of the present invention.

Explanation of symbols

1 ... Multifunction machine (image forming device)
DESCRIPTION OF SYMBOLS 9 ... Display screen 10 ... Operation part 12 ... Numeric keypad 16 ... Mode selection switch P1-P10 ... Designation switch 24 ... Image formation part

Claims (3)

An image forming apparatus including an image forming unit capable of printing image data read by an image reading unit in different forms of non-monochrome printing and monochrome printing,
An image forming apparatus comprising: designation means for designating a page to be finished by non-monochrome printing among non-monochrome originals included in a plurality of pages of originals before the original is read by the image reading unit. The non-monochrome document includes either a monochrome document composed of a single color other than black or a two-color document composed of a single color other than black + black;
2. The document forming apparatus according to claim 1, wherein the designating unit designates a page when the mono-color document or the two-color document is printed with the same color scheme. The non-monochrome document includes a full-color document of three colors or more;
2. The document forming apparatus according to claim 1, wherein the designating unit designates a page when the full color document is printed with the same color scheme.

Images