An information processing device includes: an acquisition unit configured to acquire color information on a specific color included in an inspection image, and a determination condition for determining a color shift with respect to the specific color; and a controller configured to: determine, based on the color information and the determination condition acquired by the acquisition unit, test image data representing a plurality of test images to be formed by an image forming apparatus; output the determined test image data to the image forming apparatus in order to form the plurality of test images; acquire luminance data on the plurality of test images, the luminance data being output from a color sensor; acquire spectral data on the plurality of test images, the spectral data being output from a spectroscopic sensor.

There are provided an image processing device and an image processing method capable of efficiently specifying an abnormal sound in case of the occurrence of malfunction that is an important element to clarify the cause of the malfunction. The image processing device includes acquisition means, playing means, changing means, and determination means. The acquisition means acquires a plurality of kinds of sound data indicating sounds different from each other. The playing means plays one kind of sound data from the sound data. The changing means changes the one sound data to another kind of sound data. The determination means determines one kind of sound data from the sound data.

A reading device, an image forming apparatus, and a method of correction. The reading device includes a scanner configured to read an image in a first wavelength range and an image in a second wavelength range from light reflected by a surface of a recording medium, a detector configured to detect a change from a reference position in a reading-depth direction when the surface of the recording medium is read by the scanner, based on an amount of characteristic read from the image in the second wavelength range, and a corrector configured to correct the image in the first wavelength range based on the change detected by the detector. The image forming apparatus includes the reading device, and an image forming device configured to form an image corrected by the corrector of the reading device on a recording medium. The method includes reading the image in the first wavelength.

An inspection system includes: an inspection part that compares a scanned image obtained by scanning a sheet on which an image is formed on the basis of a job with a reference image prepared in advance and thereby performs inspection of the scanned image; and a hardware processor that sets an inspection target page to be a target of inspection and a non-inspection target page to be excluded from inspection, for the job, wherein the hardware processor causes the inspection part to perform inspection for the inspection target page and not to perform inspection for the non-inspection target page on the basis of the setting of the hardware processor, and the hardware processor creates an inspection report including scanned images of all pages of the job including the non-inspection target page.

An image forming apparatus includes an exposure device, a developing device, an intermediate transfer body, a sensor, and a controller. The exposure device may irradiate light corresponding to a test pattern onto a photoconductor, the developing device may supply a developing agent to the photoconductor to form, on the photoconductor, a toner image corresponding to the test pattern, the intermediate transfer body may receive the toner image corresponding to the test pattern formed on the photoconductor, and a sensor may sense the test pattern transferred onto the intermediate transfer body. The controller may control the exposure device to adjust the irradiated light so the test pattern becomes a contone pattern having a uniform tone, and may diagnose a condition of a component of the image forming apparatus based on the sensed test pattern.

A printing system is disclosed. The printing system includes at least one physical memory device to store halftone calibration logic and one or more processors coupled with the at least one physical memory device to execute the halftone calibration logic to receive print image measurement data corresponding to a first halftone design associated with each of a plurality of pel forming elements, generate measurement data for each of the pel forming elements based on the print image measurement data, generate a uniformity compensated halftone for each of the pel forming elements based on inverse transfer functions corresponding to each of the pel forming elements and the first halftone design and transmit the uniformity compensated halftone for each of the pel forming elements.

An image forming apparatus includes an image forming unit, an intermediate transfer member, a transfer member, a power source, a fixing unit, a photosensor, and a control unit configured to perform a mode to output a test chart which is formed by transferring a plurality of test toner images from the intermediate transfer member onto a plurality of sheets of the recording material, the test chart being used to adjust the transfer voltage applied to the transfer member. The control unit is configured to adjust the transfer voltage based on a detection result of the photosensor detecting the plurality of test toner images fixed on the recording material. In a case where a jam occurred during execution of the mode, the control unit is configured to resume the mode after the jam has been recovered.

A compensation method for a 3D printer is provided. The 3D printer includes an extruder and a detection device. The method includes causing the extruder to print a test pattern based on a preset printing scheme, wherein the preset printing scheme specifies that the extruder moves at at least two movement speeds during extrusion of materials to print the test pattern; detecting, using the detection device, an extrusion speed characteristic of the extruder from the test pattern; and determining, based on the detected extrusion speed characteristic, a compensation coefficient for compensating an extrusion speed of the extruder.

An image forming apparatus can perform color calibration by using a reference document generated with use of ink and an external colorimeter. An image reading unit reads an image on a document and generates image data. An image forming unit forms an image on an image forming medium by using CMY toners. A color calibration processing unit sets a correction coefficient by using a spectral reflectance of the reference document in a visible band, and a spectral reflectance in the visible band of a toner image formed on the image forming medium with use of toner. The color calibration processing unit also performs correction by multiplying the correction coefficient with a gradation value of each of RGB, generates a conversion formula from the each gradation value of RGB to each device-independent value, and generates a color profile by using the conversion formula.

In an image forming apparatus, an arithmetic processing device functioning as a profile manager executes profile update processing: (a) by selecting one of a plurality of sheet types as a reference sheet type, allowing a printing device to print a colorimetric patch on a printing sheet of the reference sheet type to create an adjustment chart, generating a profile on the printing sheet of the reference sheet type based on a colorimetric result of the colorimetric patch, and updating the profile on the printing sheet of the reference sheet type stored in a storage device with the generated profile; and (b) by selecting each of the remaining sheet types as a target sheet type and calibrating the profile on a printing sheet of the target sheet type stored in the storage device, based on respective correspondence relation characteristics before and after the profile on the reference sheet type is updated.