Abstract: There is provided an image forming apparatus capable of preventing deterioration in accuracy of image position adjustment due to erroneous detection of a marker.

Abstract: An object is to save a user's trouble in a case of printing correction charts and stabilization charts and performing automatic tone correction with the correction charts among the printed charts. An image processing apparatus performs: control for printing correction chart images along with identification images for respectively identifying the correction chart images on print media in a one-to-one correspondence; and control for printing a stabilization chart image on a print medium before the control for printing the correction chart images.

Abstract: An object is to save a user's trouble in a case of printing correction charts and stabilization charts and performing automatic tone correction with the correction charts among the printed charts. An image processing apparatus performs: control for printing correction chart images along with identification images for respectively identifying the correction chart images on print media in a one-to-one correspondence; and control for printing a stabilization chart image on a print medium before the control for printing the correction chart images.

Abstract: There is provided an image forming apparatus capable of preventing deterioration in accuracy of image position adjustment due to erroneous detection of a marker.

Abstract: An image forming apparatus includes an image forming portion, a transfer unit, a power supply, and a reader. A test chart is formed by transferring test images to a recording material while applying test voltages from the power supply to the transfer unit. A transfer voltage to be applied to the transfer unit during transfer is set based on the read test images. A reference image is formed on the test chart. The reader reads the test chart by scanning the test chart from a first position to a second position that falls within the test images. The first position falls within a boundary of the recording material on which the test chart is formed and falls outside the test images. Based on the reference image, the result of the reader reading the test chart is obtained by scanning the test chart from the first position to the second position.

Abstract: An image forming apparatus includes an image forming unit and a reading unit. The image forming unit is configured to form an image. The reading unit has a first reading mode, in which a document conveyed by a conveyance unit is read, and a second reading mode, in which a document placed on a platen glass is read. A first correction mode, in which correction data is generated using a result of reading the test document in the first reading mode, or a second correction mode, in which correction data is generated using a result of reading the test document in the second reading mode, is executed based on a result of detection of placement of a test document on the reading unit.

Abstract: A multifunction apparatus that is capable of executing a scan job and another image process in parallel without lowering a reading speed of a scanner unit. A reading unit reads a document according to an execution instruction for a predetermined image process. An image processing unit applies the predetermined image process to image data obtained by the reading unit. A clock controller controls an image transfer clock for transferring the image data to the image processing unit from the reading unit. The clock controller sets a frequency of the image transfer clock to a predetermined frequency in a case where the predetermined image process is executed independently. And the clock controller sets the frequency of the image transfer clock to a frequency lower than the predetermined frequency in a case where the predetermined image process is executed in parallel with another image process that differs from the predetermined image process.

Abstract: An image forming apparatus includes an image forming unit and a reading unit. The image forming unit is configured to form an image. The reading unit has a first reading mode, in which a document conveyed by a conveyance unit is read, and a second reading mode, in which a document placed on a platen glass is read. A first correction mode, in which correction data is generated using a result of reading the test document in the first reading mode, or a second correction mode, in which correction data is generated using a result of reading the test document in the second reading mode, is executed based on a result of detection of placement of a test document on the reading unit.

Abstract: An image forming apparatus includes an image forming unit and a reading unit. The image forming unit is configured to form an image. The reading unit has a first reading mode, in which a document conveyed by a conveyance unit is read, and a second reading mode, in which a document placed on a platen glass is read. A first correction mode, in which correction data is generated using a result of reading the test document in the first reading mode, or a second correction mode, in which correction data is generated using a result of reading the test document in the second reading mode, is executed based on a result of detection of placement of a test document on the reading unit.

Abstract: It is possible to more securely reduce the printing time of printing processing to perform printing while conveying printing sheets in an overlapping manner. An image forming apparatus including: a determination unit configured to analyze print data for printing an image on one printing sheet and to determine, based on the analysis results, an overlap amount of the one printing sheet and another printing sheet conveyed in a state of overlapping part of the one printing sheet; and a conveyance unit configured to convey the one printing sheet and the other printing sheet in an overlapping manner in accordance with an overlap amount determined by the determination unit, and a target image range of the analysis of the print data is determined in accordance with a predetermined overlap amount determined in advance, which a printing unit can permit.

Abstract: An image forming apparatus includes a storage unit that stores generated image data, a first processing unit that, based on the image data stored in the storage unit and setting information, performs image processing according to a type of sheets stored in a first sheet feed cassette for printing of an Nth copy, a second processing unit that, based on the image data stored in the storage unit and the setting information, performs image processing according to a type of sheets stored in a second sheet feed cassette for printing of an (N+1)th copy, and a printing unit that prints image data processed by the first processing unit on a sheet fed from the first sheet feed cassette, and prints image data processed by the second processing unit on a sheet fed from the second sheet feed cassette.

Abstract: A multifunction apparatus that is capable of executing a scan job and another image process in parallel without lowering a reading speed of a scanner unit. A reading unit reads a document according to an execution instruction for a predetermined image process. An image processing unit applies the predetermined image process to image data obtained by the reading unit. A clock controller controls an image transfer clock for transferring the image data to the image processing unit from the reading unit. The clock controller sets a frequency of the image transfer clock to a predetermined frequency in a case where the predetermined image process is executed independently. And the clock controller sets the frequency of the image transfer clock to a frequency lower than the predetermined frequency in a case where the predetermined image process is executed in parallel with another image process that differs from the predetermined image process.

Abstract: It is possible to more securely reduce the printing time of printing processing to perform printing while conveying printing sheets in an overlapping manner. An image forming apparatus including: a determination unit configured to analyze print data for printing an image on one printing sheet and to determine, based on the analysis results, an overlap amount of the one printing sheet and another printing sheet conveyed in a state of overlapping part of the one printing sheet; and a conveyance unit configured to convey the one printing sheet and the other printing sheet in an overlapping manner in accordance with an overlap amount determined by the determination unit, and a target image range of the analysis of the print data is determined in accordance with a predetermined overlap amount determined in advance, which a printing unit can permit.

Abstract: An image forming apparatus includes a storage unit that stores generated image data, a first processing unit that, based on the image data stored in the storage unit and setting information, performs image processing according to a type of sheets stored in a first sheet feed cassette for printing of an Nth copy, a second processing unit that, based on the image data stored in the storage unit and the setting information, performs image processing according to a type of sheets stored in a second sheet feed cassette for printing of an (N+1)th copy, and a printing unit that prints image data processed by the first processing unit on a sheet fed from the first sheet feed cassette, and prints image data processed by the second processing unit on a sheet fed from the second sheet feed cassette.

Abstract: In general, a determination as to whether image data generated by reading an image of a document is read from a first storing unit or a second storing unit may not be made in accordance with a result of a determination as to whether printing is performed on a first set or a second set onward among sets to be printed. Accordingly, a control method in a printing apparatus includes reading a document, storing image data of the document in a first storing unit, storing the image data read from the first storing unit in a second storing unit, and performing printing based on the image data read from the first storing unit when the printing is performed on a first set and performing printing based on the image data read from the second storing unit when the printing is performed on a second set onward.

Abstract: In general, a determination as to whether image data generated by reading an image of a document is read from a first storing unit or a second storing unit may not be made in accordance with a result of a determination as to whether printing is performed on a first set or a second set onward among sets to be printed. Accordingly, a control method in a printing apparatus includes reading a document, storing image data of the document in a first storing unit, storing the image data read from the first storing unit in a second storing unit, and performing printing based on the image data read from the first storing unit when the printing is performed on a first set and performing printing based on the image data read from the second storing unit when the printing is performed on a second set onward.