Abstract: A copying apparatus is configured to repeat a first operation to scan an image on an original sheet along a first direction with changing a position of the first operation along a second direction perpendicular to the first direction, and generate pixel data of pixels of the image on the original sheet. Compressed image data is generated by compressing the pixel data within each of multiple sections divided in the first direction having boundaries extend in the second direction. The compressed image data is decompressed. A 90-degree rotation processing is applied to the decompressed image data in the unit of a band, which has a particular number of pixels in the first direction and extends along the second direction, to generate decompressed image data, Then, with use of the decompressed image data after rotation processing has been executed, the image is recorded on a recording sheet.

Abstract: A copying apparatus is configured to repeat a first operation to scan an image on an original sheet along a first direction with changing a position of the first operation along a second direction perpendicular to the first direction, and generate pixel data of pixels of the image on the original sheet. Compressed image data is generated by compressing the pixel data within each of multiple sections divided in the first direction having boundaries extend in the second direction. The compressed image data is decompressed. A 90-degree rotation processing is applied to the decompressed image data in the unit of a band, which has a particular number of pixels in the first direction and extends along the second direction, to generate decompressed image data, Then, with use of the decompressed image data after rotation processing has been executed, the image is recorded on a recording sheet.

Abstract: An image processing device includes an acquisition section, first conversion section, determination section, filtering section, and second conversion section. The acquisition section acquires first image data defined by a plurality of color components. The first conversion section converts, for each pixel data, the plurality of color components into converted pixel data defined by a luminance and a color difference. The determination section determines whether or not each converted pixel data is target pixel data having a black character attribute. The filtering section performs a filtering process on a luminance of each target pixel data using a filter coefficient to obtain processed pixel data defined by the luminance and the color difference. The filter coefficient enhances a difference in the luminance between the each target pixel data and neighboring pixel data. The second conversion section converts each processed pixel data into updated pixel data defined by the plurality of color components.

Abstract: In a conveyor of an image-reading device, a first path is defined by a path from the upper path to the lower path via the curved path. A second path is defined by a path from the upper path to the extension path. A first reading unit is disposed on the upper path and reads the first surface while the original sheet is on the upper path. A second reading unit is disposed on the upper path and reads the second surface while the original sheet is on the upper path. A third reading unit is disposed on the lower path and reads the second surface while the original sheet is on the lower path. When the reading section reads the original sheet, the conveyor conveys the original sheet through the first path or the second path.

Abstract: In a conveyor of an image-reading device, a first path is defined by a path from the upper path to the lower path via the curved path. A second path is defined by a path from the upper path to the extension path. A first reading unit is disposed on the upper path and reads the first surface while the original sheet is on the upper path. A second reading unit is disposed on the upper path and reads the second surface while the original sheet is on the upper path. A third reading unit is disposed on the lower path and reads the second surface while the original sheet is on the lower path. When the reading section reads the original sheet, the conveyor conveys the original sheet through the first path or the second path.

Abstract: An image processing device includes an acquisition section, first conversion section, determination section, filtering section, and second conversion section. The acquisition section acquires first image data defined by a plurality of color components. The first conversion section converts, for each pixel data, the plurality of color components into converted pixel data defined by a luminance and a color difference. The determination section determines whether or not each converted pixel data is target pixel data having a black character attribute. The filtering section performs a filtering process on a luminance of each target pixel data using a filter coefficient to obtain processed pixel data defined by the luminance and the color difference. The filter coefficient enhances a difference in the luminance between the each target pixel data and neighboring pixel data. The second conversion section converts each processed pixel data into updated pixel data defined by the plurality of color components.

Abstract: In the image-reader, a first reading unit generates the first surface worth of first image data by reading a first surface of an document sheet. The second reading unit generates the second surface worth of second image data by reading a second surface. The process surface determining unit determines which of the first surface and the second surface is a process surface. The parameter storing unit stores a first parameter that corresponds to the first surface and a second parameter that corresponds to the second surface. The selecting unit selects one of the first parameter and the second parameter as a process parameter that corresponds to the process surface. The selecting unit outputs the process parameter. The image process executing unit executes an image process on the one of the first image data and the second image data by using the process parameter.

Abstract: In an image reader, the first reading unit outputs first image data corresponding to the image of the first surface of the original document. The second image reading unit outputs second image data corresponding to the image of the second surface of the original document. The image process circuit acquires at least one of a part of the first image data and a part of the second image data from the storing unit, and performs an image process on the image data acquired from the storing unit. When the image process circuit finishes performing the image process on either the first image data or the second image data, the initialization instruction unit instructs initializing either the first setting or the second setting corresponding to the either the first image data or the second image data and the image process circuit initializes the either the first setting or the second setting.

Abstract: An image reading apparatus includes: a document table; a light reception unit; light sources disposed such that positions at which the optical axes of the plurality of light sources cross a reception optical axis of the light reception unit are different from one another; and a read control unit. The image reading apparatus further includes: a light reception amount storage unit configured to store the light reception amount for each of distances; a distance calculation unit configured to calculate a distance between the placement surface and the document based on the light reception amount obtained by the read control operation for each light source by referencing the light reception amount stored in the light reception amount storage unit; and a correction amount determination unit configured to determine a correction amount based on the distance calculated by the distance calculation unit.

Abstract: An image reading device including: a photoelectric conversion device that outputs an analog signal corresponding to an image read from a document; an A-D converter that converts the analog signal into a digital signal; a spread spectrum clock generation unit configured to generate a spread spectrum clock by executing frequency-modulation on a reference clock having a constant frequency; an acquisition timing setting unit configured to set an acquiring timing of the analog signal with reference to the spread spectrum clock; and an acquisition timing correction unit configured to execute a delay correction for the acquiring timing of the analog signal set by the acquisition timing setting unit in accordance with a frequency of the spread spectrum clock defined when the analog signal is outputted. The analog signal acquired at the corrected acquiring timing corrected by the acquisition timing correction unit is converted into the digital signal.

Abstract: According to a fine line detection processing, when for a subject pixel to be subjected to the fine line detection processing, a 3×3 matrix area centered on this subject pixel is set as a subject area. Point values “0” to “8” are assigned to the matrix elements constituting this 3×3 matrix subject area. Then, three pixels with the first, second, and third lowest brightness values are extracted from the subject area. When the total point value of the three extracted pixels is equal to “12”, the extracted pixels are determined as being in a connected state. Then, an intermediate value is calculated from the minimum and maximum values of brightness (Y) of pixels in the subject area. When the number of pixels with a brightness (Y) value smaller than the intermediate value is less than 4, the subject pixel is determined as being a fine-line pixel. A fine-line code is added to the subject pixel that is determined as being a fine-line pixel.

Abstract: An image forming apparatus includes: an apparatus main body; a plurality of cartridges removably mounted to the apparatus main body and accommodating developer of respective colors, each of the cartridges including a nonvolatile memory; and a storing control unit provided in the apparatus main body. The storing control unit is configured to store, in each of the nonvolatile memories, given information on all of the cartridges and identification information of the cartridges in response to a use of at least one of the cartridges, such that the given information on each of the cartridges is associated with identification information of a respective one of the cartridges.

Abstract: An image reading device according to one aspect of the invention comprises: a conveying unit configured to convey a recording medium; a first transmissive portion having a first surface that allows the recording medium to pass through the first surface; a second transmissive portion having a second surface on which a recording medium is allowed to be placed; an image reading unit comprising a line sensor extending in a first direction and movable on a second path, the second path continuously extending below the first transmissive portion and the second transmissive portion; and a driver configured to move the image reading unit on the second path. A relative distance of a third direction perpendicular to the first and second directions between the line sensor and the first surface changes in the second path below the first transmissive portion.

Abstract: An image reading device according to one aspect of the invention comprises: a conveying unit configured to convey a recording medium; a first transmissive portion having a first surface that allows the recording medium to pass the first surface; a second transmissive portion having a second surface on which a recording medium is allowed to be placed; an image reading unit comprising a line sensor extending in a first direction and movable on a second path, the second path continuously extending below the first transmissive portion and the second transmissive portion; and a driver configured to move the image reading unit on the second path. A relative distance between the line sensor and the first surface changes in the second path below the first transmissive portion. The recording medium can be read at positions having the relative distances different one another.

Abstract: In an image reader, the first reading unit outputs first image data corresponding to the image of the first surface of the original document. The second image reading unit outputs second image data corresponding to the image of the second surface of the original document. The image process circuit acquires at least one of a part of the first image data and a part of the second image data from the storing unit, and performs an image process on the image data acquired from the storing unit. When the image process circuit finishes performing the image process on either the first image data or the second image data, the initialization instruction unit instructs initializing either the first setting or the second setting corresponding to the either the first image data or the second image data and the image process circuit initializes the either the first setting or the second setting.

Abstract: In the image-reader, a first reading unit generates the first surface worth of first image data by reading a first surface of an document sheet. The second reading unit generates the second surface worth of second image data by reading a second surface. The process surface determining unit determines which of the first surface and the second surface is a process surface. The parameter storing unit stores a first parameter that corresponds to the first surface and a second parameter that corresponds to the second surface. The selecting unit selects one of the first parameter and the second parameter as a process parameter that corresponds to the process surface. The selecting unit outputs the process parameter. The image process executing unit executes an image process on the one of the first image data and the second image data by using the process parameter.

Abstract: A printing apparatus includes a command input portion, an acquiring portion that acquires image data, a judging portion that determines if specified image data is included in the image data, a control portion and a printing portion that prints an image based on the image data onto a medium. Upon receiving the print command, a determination by the judging portion is performed, and when the judging portion determines that the specified image data is included, a first copy that includes invalidation processing on at least a section of the image is produced, and a second copy that includes invalidation processing on all of the image and the image in all subsequent copies that are printed thereafter is produced, to thereby execute printing of a number of copies that are specified by the print command and subsequently enter a state in which a next print command can be executed.

Abstract: An apparatus for processing data describing an image is provided with an input device, a binarizing device, a correcting device, a driving pulse generating device, and an adjusting device. The input device inputs the data. The binarizing device performs a binarizing calculation on the input data. The correcting device corrects the binarizing calculation when a pixel that needs adjustment of a driving pulse thereof has been identified based on the binarized data. The driving pulse generating device generates driving pulses based on the binarized data. The adjusting device adjusts the driving pulse when the pixel that needs adjustment of the driving pulse thereof has been identified based on the binarized data.

Abstract: An image reading apparatus that includes: an image sensor that outputs image signals in parallel from each block composed of an element group, photoelectric conversion elements arrayed in a main scanning direction being divided into the blocks; a serial transmission section that serializes and outputs the image signals outputted in parallel from the image sensor; a sampling section that samples the serialized image signals to add the blocks, to which the image signals belong, as block information to the respective image signals; a storage section that stores the image signals on the basis of a predetermined address; and a rearranging section that gives addresses for accessing to the storage section on the basis of the block information so that the image signals are arrayed from a head for the respective blocks in the main scanning direction of the image sensor, thereby to read/write the sampled image signals from/in the storage section.

Abstract: An image reading apparatus includes: a document table; a light reception unit; light sources disposed such that positions at which the optical axes of the plurality of light sources cross a reception optical axis of the light reception unit are different from one another; and a read control unit. The image reading apparatus further includes: a light reception amount storage unit configured to store the light reception amount for each of distances; a distance calculation unit configured to calculate a distance between the placement surface and the document based on the light reception amount obtained by the read control operation for each light source by referencing the light reception amount stored in the light reception amount storage unit; and a correction amount determination unit configured to determine a correction amount based on the distance calculated by the distance calculation unit.