A printing apparatus includes a printhead having a plurality of chips, each including a plurality of nozzle arrays which are arranged in a predetermined nozzle array direction and each of which is formed from a plurality of nozzles and energy generation elements provided in correspondence with the nozzles of each nozzle array and each configured to generate energy used for discharging ink. The apparatus relatively moves the printhead and a print medium in a direction intersecting the nozzle array direction, reads a predetermined test pattern printed on the print medium by driving the printhead, analyzes the read test pattern, calculates a slant of the printhead with respect to a reference based on a result of the analysis, and corrects the calculated slant of the printhead by moving the printhead.

In image forming apparatus, a control unit determines nozzles corresponding to the image to be printed, correspondingly to a position of a print sheet, and causes a recording head to eject ink from the nozzles. A correction processing unit performs a correction process corresponding to each of plural ink ejection malfunction positions in the image. If the number of the ink ejection malfunction positions detected with a predetermined ink droplet size exceeds a predetermined upperlimit value, the correction processing unit prints a test pattern using the control unit with an ink droplet size larger than the predetermined ink droplet size, determines as a preferential ink ejection malfunction position an ink ejection malfunction position that ink ejection malfunction is also detected in the test pattern on the basis of a scanned image of the test pattern, and preferentially performs the correction process for the preferential ink ejection malfunction position.

A liquid droplet ejecting apparatus comprises a liquid droplet ejecting head which has a nozzle array composed of a plurality of nozzles arranged in a first direction, a relative movement mechanism which relatively moves the liquid droplet ejecting head and a recording medium in the first direction, and a controller. The controller controls the liquid droplet ejecting head and the relative movement mechanism to record, on the recording medium, a nonuniformity correction pattern in order to correct any dispersion in a liquid droplet ejection amount among the plurality of nozzles. The controller is configured, in order to record the nonuniformity correction pattern, such that the liquid droplet ejecting head is allowed to eject liquid droplets from at least the first nozzle to thereby record a first pattern group, the relative movement mechanism is allowed to relatively move the liquid droplet ejecting head and the recording medium in the first direction by a predetermined distance, and the liquid droplet ejecting head is allowed to eject the liquid droplets from at least the second nozzle to thereby record a second pattern group.

A recording device including: a liquid ejecting unit configured to eject liquid to a first surface of a medium transported in a transport direction, a roller disposed downstream of the liquid ejecting unit in the transport direction and configured to rotate in contact with the first surface, and a control unit, wherein the control unit is configured to form a first pattern of the liquid on the first surface by controlling ejection of the liquid by the liquid ejecting unit, and to form a detection region for the first pattern at a specific position on the first surface at which the roller is brought into contact with the first surface when a rotational angle of the roller becomes m°+360°, m° being a rotational angle of the roller when the roller is brought into contact with the first pattern.

A multifunction peripheral includes a conveyance roller, a print engine, a scanner, and a controller. The controller is configured to perform: driving the conveyance roller to convey a recording medium and controlling the print engine to record, on the recording medium, a test image based on test image data with recording agent; after recording the test image, controlling the scanner to generate scan data of the test image recorded on the recording medium; after generating the scan data, extracting, based on the scan data and the test image data, stain data indicative of a stain caused by transfer of the recording agent from the conveyance roller to the recording medium; after extracting the stain data, generating correction data by removing the stain data from the scan data; and executing particular processing by using the correction data.

The disclosure concerns a test apparatus comprising a drum (100) configured such that ink drops (200) deposited on the surface of the drum form a printed marking (210) on the surface of the drum. The test apparatus further comprises an ink removal unit (300) configured to remove ink from the surface of the drum. The drum is at least partially transmissive of light and a light source (800) is disposed inside the drum to controllably illuminate the drum.

A control unit obtains a captured image of a reference workpiece by a second image capturing unit after a droplet ejected from a droplet ejecting head lands toward a reference mark formed on an upper surface of the reference workpiece, detects a positional deviation amount of a position of the reference mark and a landing position of the droplet based on the captured image, and calculates the correction amounts of the relative positions of a workpiece table and a droplet ejecting head based on the positional deviation amount.

A substrate processing apparatus and a substrate processing method are provided, which can improve the yield by minimizing the occurrence of stains. The substrate processing method includes forming on the substrate a plurality of ink patterns spaced apart from each other by jetting ink onto the substrate by using a plurality of nozzles, calculating the density of each of the plurality of ink patterns, and selecting at least one nozzle for jetting ink into one pixel area based on respectively calculated densities of the plurality of ink patterns.

Embodiments include a method performed by a system operative to determine a condition related to a printed section printed by a shuttle-based printer. The method includes printing a portion of an image on a section of a medium, thereby providing a printed section. The section of the medium can have a size defined by at least a step size taken by the shuttle-based printer to advance the medium in a downstream direction. The method also includes scanning at least the printed section to capture a sample image of the printed section. The sample image can be captured by using an imager moving in a direction perpendicular to the downstream direction. The method also includes inspecting at least the sample image to determine a value indicative of a condition related to the printed section.

An inspection apparatus includes at least one memory that stores instructions, and at least one processor that executes the instructions to perform determining, in a case where an image of an inspection area is a blank and collation inspection is to be performed on the image of the inspection, whether correct data in the collation inspection is a blank, outputting an inspection result for the inspection area as a success, in a case where it is determined that the correct data is a blank, and outputting an inspection result for the inspection area as a failure, in a case where it is determined that the correct data is not a blank.