Abstract: A color image forming apparatus includes a controller implemented using one or more hardware processors, wherein the controller: detects a line area; detects a background area adjacent to the line area; detects first one or more ink colors of first one or more inks to be used in the line area; detects second one or more ink colors of second one or more inks to be used in the background area; compares the first one or more ink colors and the second one or more ink colors to identify a combination pattern of the first one or more ink colors and the second one or more ink colors; and determines whether to correct amounts of the first one or more inks and amounts of the second one or more inks, based on the identified combination pattern.

Abstract: A color image forming apparatus includes a controller implemented using one or more hardware processors, wherein the controller: detects a line area; detects a background area adjacent to the line area; detects first one or more ink colors of first one or more inks to be used in the line area; detects second one or more ink colors of second one or more inks to be used in the background area; compares the first one or more ink colors and the second one or more ink colors to identify a combination pattern of the first one or more ink colors and the second one or more ink colors; and determines whether to correct amounts of the first one or more inks and amounts of the second one or more inks, based on the identified combination pattern.

Abstract: An image reading apparatus for reading an image from a sheet includes: a scanner including a platen glass; a sheet conveyer that rotates around an axis on a rear surface side and is provided to be openable/closable; and an operation panel including a rectangular image display surface, wherein the sheet conveyer includes a document tray, a sheet discharge surface, and a conveying part arranged at one side of the document tray in a horizontal direction as viewed from a front side and conveys the sheet, and the operation panel is arranged in a positional range not overlapping with the conveying part back and forth so that the vertical image display surface faces obliquely forward and upward as viewed from the front side and has a size from a position of the platen glass on the front side and a position higher than the sheet discharge surface.

Abstract: An image reading apparatus for reading an image from a sheet includes: a scanner including a platen glass; a sheet conveyer that rotates around an axis on a rear surface side and is provided to be openable/closable; and an operation panel including a rectangular image display surface, wherein the sheet conveyer includes a document tray, a sheet discharge surface, and a conveying part arranged at one side of the document tray in a horizontal direction as viewed from a front side and conveys the sheet, and the operation panel is arranged in a positional range not overlapping with the conveying part back and forth so that the vertical image display surface faces obliquely forward and upward as viewed from the front side and has a size from a position of the platen glass on the front side and a position higher than the sheet discharge surface.

Abstract: An image processing apparatus includes a first screen processing unit that performs first screen processing using a first screen angle on a line region of a character, a second screen processing unit that performs second screen processing using a second screen angle on at least an outline region out of the line region, the second screen angle being different from the first screen angle, and a composition unit that performs composition of a processing result of the first screen processing and a processing result of the second screen processing, on at least the outline region out of the line region.

Abstract: An image forming apparatus includes the following. An image forming unit forms an image. An image magnification changing unit changes a rotating speed of a polygon motor to change magnification of the image. A reference position detecting unit detects a reference position of a predetermined target component in a vertical scanning direction. A target component position calculating unit calculates a position of the target component based on a detecting result and a signal of a predetermined cycle according to the rotating speed of the polygon motor. A storage unit stores a correction table to correct density unevenness. An image data correcting unit obtains correction data based on the position of the target component and corrects the image data. A parameter correcting unit corrects a parameter according to a timing that the rotating speed of the polygon motor is changed.

Abstract: An image forming apparatus includes the following. An image forming unit forms an image. An image magnification changing unit changes a rotating speed of a polygon motor to change magnification of the image. A reference position detecting unit detects a reference position of a predetermined target component in a vertical scanning direction. A target component position calculating unit calculates a position of the target component based on a detecting result and a signal of a predetermined cycle according to the rotating speed of the polygon motor. A storage unit stores a correction table to correct density unevenness. An image data correcting unit obtains correction data based on the position of the target component and corrects the image data. A parameter correcting unit corrects a parameter according to a timing that the rotating speed of the polygon motor is changed.

Abstract: An image processing device, comprises: a display part on which a variety of information is displayed; an image processing part for performing a plurality of image processing sequentially to process an input image data; a thumbnail image generating part for generating a thumbnail image one after the other based on the input image data or the processed image data generated sequentially in response to each image processing performed by the image processing part; an image outputting part for outputting an image based on the image data which is processed through the entire plurality of image processing; a display controlling part for displaying a processing path of the plurality of image processing performed sequentially by the image processing part from the image data is input until the image is output on the display part, and for displaying the thumbnail image along the processing path.

Abstract: An image processing device, comprises: a display part on which a variety of information is displayed; an image processing part for performing a plurality of image processing sequentially to process an input image data; a thumbnail image generating part for generating a thumbnail image one after the other based on the input image data or the processed image data generated sequentially in response to each image processing performed by the image processing part; an image outputting part for outputting an image based on the image data which is processed through the entire plurality of image processing; a display controlling part for displaying a processing path of the plurality of image processing performed sequentially by the image processing part from the image data is input until the image is output on the display part, and for displaying the thumbnail image along the processing path.

Abstract: An image processing apparatus, comprising: an input portion that inputs image data of a plurality of pages of document; a password detector that detects a password given to each of the pages; a password judger that judges from a detecting result drew by the password detector about each of the pages, whether or not a shared password issued for each page in common is detected in addition to an individual password uniquely issued for each page; an entry requester that requests entry of a shared password if it is judged by the password detector that a shared password is detected, and requests entry of an individual password about each of the pages if it is judged by the password detector that a shared password is not detected; and an output permitting portion that permits image data of all the pages each having a shared password, which is the image data inputted by the input portion, if the appropriate shared password is entered in response to the request for entry of a shared password, and permits image data of

Abstract: An image processing apparatus comprising: an input portion that inputs image data of a plurality of pages of document; a password detector that detects a password given to each of the pages; a password judger that judges from the detecting results drew by the password detector whether or not different passwords are detected from each of the pages; a correlation judger that judges about each of the pages if the password judger judges that different passwords are detected from each of the pages, whether or not the passwords are correlated to each other; and an output permitting portion that permits the image data of all the pages, which are the image data inputted by the input portion, to be outputted without requesting entry of all passwords, if it is judged about each of the pages that the passwords are correlated to each other, on the other hand, requests entry of a password about each of the pages if it is judged about at least one of the pages that the passwords are not correlated to each other, then permi

Abstract: An image processing apparatus includes a first screen processing unit that performs first screen processing using a first screen angle on a line region of a character, a second screen processing unit that performs second screen processing using a second screen angle on at least an outline region out of the line region, the second screen angle being different from the first screen angle, and a composition unit that performs composition of a processing result of the first screen processing and a processing result of the second screen processing, on at least the outline region out of the line region.

Abstract: An image processing apparatus, comprises: a document reader that reads images printed in a plurality of areas in a document; a printer that prints on a sheet image data read out from the document by said document reader; a security code detector that detects a security code given to each of the plurality of areas in said document; a password detector that detects a password given at least to one of the plurality of areas in said document; an entry requestor that requests a password to be entered; a password judgment part that judges whether or not said entered password is an appropriate one that corresponds to the password detected by the password detector; and a controller that decides an operation performed by said printer, to print image data from the area having the given password, depending on the judgment result drew by said password judgment part.

Abstract: The image processing apparatus of the present invention includes: a specific pattern detecting unit which detects a background pattern representing additional information from inputted original document image data; an information detecting unit which extracts the additional information represented by the background pattern which is detected by the specific pattern detecting unit; an erase processing unit which erases a prescribed region of the original document image and outputs erase-processed document image data; a re-embedding background pattern generating unit which generates a re-embedding background pattern representing the additional information extracted by the information detecting unit; a background pattern composition processing unit which embeds the re-embedding background pattern into the erase-processed document image data and outputs re-embedded document image data; and a processor which controls the units mentioned above.

Abstract: An image reading apparatus includes: three line sensors mutually spaced in a sub scanning direction; a platen arranged between the original and the three line sensors; a mover moving the platen relative to the three line sensors at a rate relative to the three line sensors, the rate being different from that of the original relative to the three line sensors; a lightness difference detector extracting a feature pixel having a predetermined feature from each of three data output from the three line sensors; and NOR and AND devices comparing the three data corresponding to a single location on the original to detect the feature pixel extracted from one of the three data, as a noise pixel if the feature pixel is not a feature pixel for the other data.

Abstract: An image reading apparatus includes, with the purpose of detecting with improved precision noise generated due to dust on a platen, three line sensors spaced from each other in a sub scanning direction to scan an original in the sub scanning direction, the platen between the original and the three line sensors, a moving mechanism for moving the platen at a rate relative to the line sensors, the rate being different from that of the original relative to the line sensors, an interline corrector synchronizing three data output from the three line sensors to be values of pixels reading a single location on the original, and a noise detector receiving these data synchronized by the interline corrector that are provided successively line by line, and the noise detector includes an isolated noise determiner determining that an isolated point of a chromatic color is a noise pixel.

Abstract: An image scanning apparatus moves a copyboard provided between an original document and three line sensors and the three line sensors relatively to each other at a speed different from the speed of conveying an original document. An in-line correction portion allows three data output by three line sensors to be synchronized so that a foreign object on the copyboard appears at different positions of the original document in chromatic color. A foreign object position detection portion detects a position on the copyboard of a foreign object before an original document is conveyed, and a color determination portion decides a determination pixel for use in determination from a plurality of pixels included in each of scanned data obtained while the original document is conveyed, based on the position of the foreign object, and determines whether the original document is color or black-and-white based on the determination pixel.

Abstract: An image reading apparatus includes: three line sensors mutually spaced in a sub scanning direction; a platen arranged between the original and the three line sensors; a mover moving the platen relative to the three line sensors at a rate relative to the three line sensors, the rate being different from that of the original relative to the three line sensors; a lightness difference detector extracting a feature pixel having a predetermined feature from each of three data output from the three line sensors; and NOR and AND devices comparing the three data corresponding to a single location on the original to detect the feature pixel extracted from one of the three data, as a noise pixel if the feature pixel is not a feature pixel for the other data.

Abstract: An image reading apparatus includes: three line sensors mutually spaced in a sub scanning direction; a platen arranged between the original and the three line sensors; a mover moving the platen at a rate relative to the three line sensors, the rate being different from that of the original relative to the three line sensors; a first detector detecting a noise pixel based on a plurality of data output from the three line sensors; and a second detector detecting a subsequent noise pixel based on the noise pixel detected with the first detector.

Abstract: An image reading apparatus includes: three line sensors mutually spaced in a sub scanning direction; a platen arranged between the original and the three line sensors; a mover moving the platen relative to the three line sensors at a rate relative to the three line sensors, the rate being different from that of the original relative to the three line sensors; a lightness difference detector extracting a feature pixel having a predetermined feature from each of three data output from the three line sensors; and NOR and AND devices comparing the three data corresponding to a single location on the original to detect the feature pixel extracted from one of the three data, as a noise pixel if the feature pixel is not a feature pixel for the other data.