Disclosed herein are a system and method for producing paint templates for painting a design on a target surface. The system includes a processor configured to generate a geo-file of paint template designs. The processor includes a design module configured to parse the design into a set of paint sub-designs and a template design module configured to generate the geo-file of paint template designs based on the set of paint sub-designs. The generated geo-file of paint template designs includes a paint template design that corresponds to a paint sub-design. The system further includes a plotter configured to produce a set of paint templates based on the geo-file of paint template designs. Each paint template design includes a set of alignment marks and each paint template is produced with a set of alignment apertures corresponding to the set of alignment marks.

An image forming apparatus includes: a correction unit configured to correct a tone of each pixel in first image data in accordance with an image height on a photosensitive member, and output second image data; a halftone processing unit configured to determine exposed regions of pixels in an image by applying halftone processing to the second image data; and a scanning unit configured to form a latent image by scanning the photosensitive member with light that changes in scanning speed in accordance with an image height based on the exposed regions of the pixels. The scanning unit is further configured to perform partial exposure with respect to the pixels based on the exposed regions of the pixels, the partial exposure exposing partial regions of the pixels to light unlike entire exposure that exposes entire regions of the pixels to light.

An image processing device includes a dithering circuit, a gradation correction pattern generating circuit, and a gradation correction pattern correcting circuit. The dithering circuit performs a dithering process on image data to generate dithered image data. The gradation correction pattern generating circuit sets, in multi-valued data, gradation information of each of pixels of the generated dithered image data, and generates a gradation correction pattern imitating the dithered image data. The gradation correction pattern correcting circuit performs pattern matching on the generated gradation correction pattern, and corrects the generated gradation correction pattern in accordance with a result of the pattern matching.

An image forming apparatus forms an image by exposing an image bearer on the basis of image data including at least one predetermined pattern. The image forming apparatus includes a processing device that sets an exposure amount of a plurality of exposure pixels. The predetermined pattern is constituted by the plurality of exposure pixels, and a peripheral region of the predetermined pattern in the image data is constituted by a plurality of non-exposure pixels. The processing device sets an exposure amount of an exposure pixel in a specific region that is adjacent to a boundary between the predetermined pattern and the peripheral region and is constituted by at least one exposure pixel in the predetermined pattern, and an exposure amount of an exposure pixel in a region other than the specific region in the predetermined pattern to values different from each other.

An image forming apparatus includes: at least one processor that is configured to generate second image data corresponding to each of a plurality of light emitting elements based on first image data, the second image data indicating whether to cause each of the plurality of light emitting elements to emit light, and based on correction information, change the first image data indicating that the light emitting elements are to emit light, to the second image data indicating that the light emitting elements are not to emit light, and the circuit unit configured to supply a current to each of the plurality of light emitting elements based on the second image data.

Disclosed herein are a system and method for producing paint templates for painting a design on a target surface. The system includes a processor configured to generate a geo-file of paint template designs. The processor includes a design module configured to parse the design into a set of paint sub-designs and a template design module configured to generate the geo-file of paint template designs based on the set of paint sub-designs. The generated geo-file of paint template designs includes a paint template design that corresponds to a paint sub-design. The system further includes a plotter configured to produce a set of paint templates based on the geo-file of paint template designs. Each paint template design includes a set of alignment marks and each paint template is produced with a set of alignment apertures corresponding to the set of alignment marks.

An image forming apparatus includes a photosensitive member; a scan unit configured to scan the photosensitive member with light based on image data, and form a latent image on the photosensitive member; a developing unit configured to form an image on the photosensitive member by attaching toner to the latent image formed on the photosensitive member; and a correction unit configured to correct an exposure amount of the photosensitive member such that a density change of the image in a main scanning direction due to a configuration of the scan unit and a density of the image to be formed is reduced.

There is provided a method for controlling an electrophotographic apparatus including forming a first measurement image by performing first halftone processing on image data, forming a second measurement image by performing second halftone processing different from the first halftone processing on the image data, measuring densities of the first measurement image and the second measurement image, calculating a density difference between each of densities of the measurement images, determining whether the density difference satisfies a predetermined reference value, and applying a surface treatment on an electrophotographic photosensitive member if the density difference does not satisfy the reference value, during a non-image formation period.

An image forming apparatus includes a printer unit that prints an image on a sheet using a line head in which a plurality of light emitting devices are arranged, and a storage unit that stores information regarding light amounts corresponding to the light emitting devices of the line head. The image forming apparatus generates a mask pattern based on the information regarding the light amounts obtained from the storage unit and a target light amount, and executes mask processing on halftone image data that is in positional correspondence with the light emitting devices using the generated mask pattern.

First correction data for use in a first printing mode is generated by image density measurement in the first printing mode, and second correction data for use in a second printing mode, which is different from the first printing mode in peripheral speed ratio of a developing roller to a photosensitive drum, is generated by image density measurement in the second printing mode. First processing for generating first and second correction data for the first and second printing modes, respectively, by density measurement, or second processing for generating the first correction data by density measurement and generating the second correction data using the generated first correction data and a difference in image density between the first printing mode and the second printing mode is executed. The first processing is executed when a predetermined condition is satisfied.