A printing apparatus includes: a print head; a conveyance device; and a control device configured to perform control of printing a print image, including: obtain image data indicating an input image; generate print data for printing the print image for each line based on the image data, the generating of the print data including: shifting the dots composing the input image in the sub-scanning direction to form the dots composing the print image; and reduce a width of a plain area in the sub-scanning direction of the print medium, the plain area being an area where the print image is not printed over the entire area of the plain area in the main scanning direction on the print medium.

A method of operating a printer iteratively performs printhead purges and test pattern analysis until either every printhead has a number of inoperative inkjets that is less than a predetermined threshold or a maximum number of iterations is reached. An error message is generated for each printhead having a number of inoperative inkjets that is greater than the predetermined threshold. The iterative performance of the printhead purges and test pattern analysis is performed automatically prior to the commencement of printing operations with the printer to remove subjective and time-consuming analysis by a printer operator.

A printing apparatus includes a printing head to move in a first direction, a conveying roller to convey the printing medium in a second direction intersecting with the first direction, and a housing to house the printing head and the conveying roller and be expandable and contractible in the first direction. The printing apparatus performs predetermined notification based on information related to a length of the housing in the first direction, wherein the conveying roller is incapable of conveying the printing medium having a predetermined size when the length of the housing in the first direction is a first length and conveys the printing medium having the predetermined size in a case where the length is a second length larger than the first length. The predetermined notification is performed based on the information related to the length of the housing indicating information corresponding to the first length.

A method comprises obtaining a training dataset, the training dataset comprising sheet passage interval information associated with conveyance of a plurality of sheets in a sheet conveyance path of a training sheet processing apparatus, at least a portion of the sheets of the plurality of sheets having a known sheet classification of a set of sheet classifications; obtaining sheet timing data associated with the classifying, the sheet timing data comprising sheet passage interval information associated with conveyance of a predetermined number of sheets in the sheet conveyance path of a deployed sheet processing apparatus; classifying, using a machine learning model and the training dataset and the sheet timing data, for each interval window of a plurality of different interval windows, a predetermined number of sheets in a sheet conveyance path of a deployed sheet processing apparatus as a particular classification of the set of sheet classifications; and adjusting, based on the classifying, one or more operational parameters of a deployed sheet processing apparatus.

A printing apparatus includes an image former which forms a tone pattern image on a sheet conveyed from a sheet feeding deck, a color measurer which performs color measurement by reading the tone pattern image formed by the image former, and one or more controllers including one or more processors and one or more memories. The one or more controllers are configured to generate tone correction data based on a difference between color measurement results by the color measurer and a reference value, and perform tone correction for print target image data by using the generated tone correction data. The reference value is registered in association with a type of sheet that is accommodated in the sheet feeding deck, and in a case where the type of sheet that is accommodated in the sheet feeding deck is changed, the reference value is cleared.

In a color printing environment, functions for printing color management are dissociated. An abstraction layer is also provided to facilitate setting and evaluation of all factors relating to color print and prediction.

An image processing apparatus extracts a margin portion from an input image in a case in which the input image is a margined formation target image formed so as to include a margin, and automatically executes, based on the extracted margin portion, a print setting of the input image.

A printing apparatus includes a conveyance unit including a pair of rotation members that nip a roll sheet, and configured to convey the sheet by rotation of the pair of rotation members, a printing unit, and a control unit configured to, upon executing a new print job, cause the conveyance unit to perform a preparatory operation in which the sheet is conveyed in a forward direction and then conveyed in a reverse direction and stopped. If a predetermined condition is met after completion of a previous print job, the control unit causes the conveyance unit to perform the preparatory operation, and if the predetermined condition is not met after completion of a previous print job, the control unit does not cause the conveyance unit to perform the preparatory operation.

An apparatus configured to generate image data represented in achromatic color from input image data and output the generated image data to a printer includes a controller. The controller is configured to replace color information of an object included in the input image data with an achromatic signal value, determine, based on an achromatic signal value corresponding to color information of a pixel of interest in the input image data, whether the pixel of interest satisfies a predetermined condition, and perform enhancement processing on the color information of the pixel of interest in a case where the pixel of interest is determined not to satisfy the predetermined condition.

An image forming apparatus has an office direct print function, and when a non-installed font that is not installed in the image forming apparatus is included in application data, a font substitution guidance screen is displayed on a display. A drop-down list that is an operator for selecting a substitute font is provided in the font substitution guidance screen, whereby a user can arbitrarily select a substitute font. The font substitution guidance screen displays also a sample character group having a typeface according to the selected substitute font.