Abstract: An image forming apparatus that forms an image on a recording medium includes: an image former that forms an image on a recording medium and is capable of forming an image for diagnosis, which is an image used for diagnosis of the image forming apparatus; an image reader that reads the image for diagnosis formed on a recording medium; and a processor configured to change at least one of a reading condition under which the image reader reads the image for diagnosis and a processing condition under which a read image obtained by the reading is processed in accordance with a mode of diagnosis of the image forming apparatus.

Abstract: An information processing apparatus includes a processor configured to: acquire a read image resulting from reading a recording medium where a diagnostic image to be used to diagnose an image forming apparatus is formed; acquire, from the read image, an image read portion of the recording medium from which the diagnostic image is read and one specific portion of a non-formation read portion, the non-formation read portion resulting from reading a non-formation portion of the recording medium where the diagnostic image is not formed; and output the image read portion and the one specific portion.

Abstract: An image forming apparatus that forms an image on a recording medium includes: an image former that forms an image on a recording medium; an image reader that reads an image formed on a recording medium; an adjuster that adjusts the image former on a basis of a reading result obtained by the image reader by reading an image formed on a recording medium by the image former; and a processor configured to output, to an external apparatus used for diagnosis of the image forming apparatus, the reading result of the image formed on the recording medium by the image former when adjustment is performed by the adjuster.

Abstract: An information processing apparatus includes a processor configured to: acquire a result of diagnosis of one image forming apparatus made on a basis of a result of reading of a recording medium on which an image has been formed by the one image forming apparatus and that has been read by another image forming apparatus having an image reading function; acquire other apparatus information, which is information concerning the other image forming apparatus; and generate a screen including both of the result of the diagnosis and the other apparatus information.

Abstract: An information processing apparatus includes a processor configured to: acquire a read image resulting from reading a recording medium where a diagnostic image to be used to diagnose an image forming apparatus is formed; acquire, from the read image, an image read portion of the recording medium from which the diagnostic image is read and one specific portion of a non-formation read portion, the non-formation read portion resulting from reading a non-formation portion of the recording medium where the diagnostic image is not formed; and output the image read portion and the one specific portion.

Abstract: An image forming apparatus that forms an image on a recording medium includes: an image former that forms an image on a recording medium; an image reader that reads an image formed on a recording medium; an adjuster that adjusts the image former on a basis of a reading result obtained by the image reader by reading an image formed on a recording medium by the image former; and a processor configured to output, to an external apparatus used for diagnosis of the image forming apparatus, the reading result of the image formed on the recording medium by the image former when adjustment is performed by the adjuster.

Abstract: An information processing apparatus includes a processor configured to: acquire a result of diagnosis of one image forming apparatus made on a basis of a result of reading of a recording medium on which an image has been formed by the one image forming apparatus and that has been read by another image forming apparatus having an image reading function; acquire other apparatus information, which is information concerning the other image forming apparatus; and generate a screen including both of the result of the diagnosis and the other apparatus information.

Abstract: An image forming apparatus that forms an image on a recording medium includes: an image former that forms an image on a recording medium and is capable of forming an image for diagnosis, which is an image used for diagnosis of the image forming apparatus; an image reader that reads the image for diagnosis formed on a recording medium; and a processor configured to change at least one of a reading condition under which the image reader reads the image for diagnosis and a processing condition under which a read image obtained by the reading is processed in accordance with a mode of diagnosis of the image forming apparatus.

Abstract: An image forming apparatus that forms an image on a recording medium includes: an image forming unit that forms an image on a recording medium and is capable of forming an image for diagnosis, which is an image used for diagnosis of the image forming apparatus; and an adding unit that adds, to a recording medium on which the image for diagnosis has been formed by the image forming unit, information for control used to control output of a reading result from an apparatus used to read the recording medium, the reading result being obtained by reading the recording medium by the apparatus.

Abstract: A color processing apparatus includes a processor configured to implement first, second, and third acquiring units. The first acquiring unit acquires first color data indicating association among first-space color in a first space, second-space color obtained by reading measurement images having different first-space colors, and third-space color obtained by converting the second-space color through a predetermined transformation model. The second acquiring unit acquires second color data indicating association between the first-space color and the third-space color obtained by performing color measurement on some of the specific-color measurement images containing a specific color in the first space and included in the measurement images. The third acquiring unit acquires third color data indicating association between the first-space color and the third-space color obtained by converting the first-space color through a transformation equation obtained from the first and second color data.

Abstract: A color patch generation apparatus includes a printing unit that prints color patches for first color space acquisition in a certain region of a plurality of sheets of paper by a certain number of patches and in a certain patch size, and prints color patches for second color space acquisition in a region different from the certain region of at least one of the plurality of sheets of paper by a certain number of patches and in a patch size smaller than the certain patch size.

Abstract: A color processing apparatus includes first, second, and third acquiring units. The first acquiring unit acquires first color data indicating association among first-space color in a first space, second-space color obtained using a reading unit reading measurement images having different first-space colors, and third-space color obtained by converting the second-space color through a predetermined transformation model. The second acquiring unit acquires second color data indicating association between the first-space color and the third-space color obtained using a measuring unit performing color measurement on some of the specific-color measurement images containing a specific color in the first space and included in the measurement images. The third acquiring unit acquires third color data indicating association between the first-space color and the third-space color obtained by converting the first-space color through a transformation equation obtained from the first and second color data.

Abstract: An image forming apparatus includes a forming unit, a detecting unit, and a creating unit. The forming unit forms a first image and at least one of second and third images on a recording medium. The first image is used to create correction data for gradation correction. The second image is used to detect a streak in a cross direction which is produced in the first image. The cross direction intersects a conveying direction in which the recording medium is conveyed. The third image is used to detect the streak in the conveying direction which is produced in the first image. The detecting unit detects the streak by using at least one of the second and third images. When the detecting unit detects the streak, the creating unit creates the correction data on the basis of a portion other than a region corresponding to the streak in the first image.

Abstract: An image processing apparatus includes a setting unit that sets a first threshold value serving as a determination criterion as to whether a color difference between a target value of a color and a value indicating a corresponding color of an image formed on a recording medium falls within a permissible range, a deriving unit that derives, using conversion information related to converting a color of an input image into a color of an output image, a second threshold value that serves as a limit of the color difference, an acquisition unit that acquires the color difference when the image is formed on the recording medium using the conversion information, and a notifying unit that, with the color difference acquired by the acquisition unit falling outside the permissible range, changes and then notifies contents of notification depending on whether the first threshold value is higher than the second threshold value.

Abstract: An image processing apparatus includes a setting unit that sets a first threshold value serving as a determination criterion as to whether a color difference between a target value of a color and a value indicating a corresponding color of an image formed on a recording medium falls within a permissible range, a deriving unit that derives, using conversion information related to converting a color of an input image into a color of an output image, a second threshold value that serves as a limit of the color difference, an acquisition unit that acquires the color difference when the image is formed on the recording medium using the conversion information, and a notifying unit that, with the color difference acquired by the acquisition unit falling outside the permissible range, changes and then notifies contents of notification depending on whether the first threshold value is higher than the second threshold value.

Abstract: A color processing apparatus includes first, second, and third acquiring units. The first acquiring unit acquires first color data indicating association among first-space color in a first space, second-space color obtained using a reading unit reading measurement images having different first-space colors, and third-space color obtained by converting the second-space color through a predetermined transformation model. The second acquiring unit acquires second color data indicating association between the first-space color and the third-space color obtained using a measuring unit performing color measurement on some of the specific-color measurement images containing a specific color in the first space and included in the measurement images. The third acquiring unit acquires third color data indicating association between the first-space color and the third-space color obtained by converting the first-space color through a transformation equation obtained from the first and second color data.

Abstract: An image forming apparatus includes a forming unit, a detecting unit, and a creating unit. The forming unit forms a first image and at least one of second and third images on a recording medium. The first image is used to create correction data for gradation correction. The second image is used to detect a streak in a cross direction which is produced in the first image. The cross direction intersects a conveying direction in which the recording medium is conveyed. The third image is used to detect the streak in the conveying direction which is produced in the first image. The detecting unit detects the streak by using at least one of the second and third images. When the detecting unit detects the streak, the creating unit creates the correction data on the basis of a portion other than a region corresponding to the streak in the first image.

Abstract: A color patch generation apparatus includes a printing unit that prints color patches for first color space acquisition in a certain region of a plurality of sheets of paper by a certain number of patches and in a certain patch size, and prints color patches for second color space acquisition in a region different from the certain region of at least one of the plurality of sheets of paper by a certain number of patches and in a patch size smaller than the certain patch size.

Abstract: A determination device includes a first instructing unit, a first acquiring unit, a correcting unit, a predicting unit, a second instructing unit, a second acquiring unit, and a determining unit. The predicting unit predicts a measurement value of a multicolor patch image included in a second patch column to be output by an image output device, the second patch column being acquired after the correcting unit corrects tone values in a first patch column. The second acquiring unit acquires the measurement value of the multicolor patch image measured by performing, by a user, an operation of a measurement device along the second patch column output by the image output device. The determining unit determines whether the operation performed by the user is appropriate on a basis of the measurement value acquired by the second acquiring unit and the measurement value predicted by the predicting unit.

Abstract: A determination device includes a first instructing unit, a first acquiring unit, a correcting unit, a predicting unit, a second instructing unit, a second acquiring unit, and a determining unit. The predicting unit predicts a measurement value of a multicolor patch image included in a second patch column to be output by an image output device, the second patch column being acquired after the correcting unit corrects tone values in a first patch column. The second acquiring unit acquires the measurement value of the multicolor patch image measured by performing, by a user, an operation of a measurement device along the second patch column output by the image output device. The determining unit determines whether the operation performed by the user is appropriate on a basis of the measurement value acquired by the second acquiring unit and the measurement value predicted by the predicting unit.