A printing apparatus configured to receive print data, analyze the print data, and print the print data includes a control unit configured to control activation of a plurality of analysis units respectively supporting different data formats, a reception unit configured to receive from an external apparatus a predetermined inquiry received before receiving print data from the external apparatus, and a notification unit configured to notify the external apparatus of a response to the predetermined inquiry, the response including at least information indicating a predetermined data format supported by the printing apparatus, wherein, based on the predetermined inquiry, the control unit activates one of the analysis units that supports the predetermined data format indicated by the information.

Examples described herein relate to a system consistent with the disclosure. For instance, the system may comprise a printing device including hardware to form an image on a print medium, a memory resource, and a controller to receive a print job to form the markings on the print medium, designate a pixel of the received print job to form a covert dot pattern on the markings, where the pixel corresponds to a first laser intensity level; and adjust a laser intensity of the printing device to a second laser intensity level based on the first laser intensity level of the designated pixel to form the covert dot pattern.

Examples described herein relate to a system consistent with the disclosure. For instance, the system may comprise a printing device including hardware to form markings on a print medium, a memory resource, and a controller to receive a print job to form the markings on the print medium, render a page description language of the print job to form the markings, determine an object type image of the print job, designate pixels of the determined object type image to form a covert dot pattern on the image, and adjust colors of the designated pixels to form the covert dot pattern on the markings.

A printed-material check apparatus includes a processor configured to: acquire check information including section information and first comparison information from a printed material printed on a basis of print data with check information, the section information identifying a section in print data, the first comparison information being generated from data identified by the section, the print data with check information being generated by adding the check information to the print data; acquire an image of an inner part of a section on the printed material, the section being identified by the acquired check information; and determine whether the printed material is valid by using the first comparison information and the image of the inner part of the section on the printed material.

A printing apparatus includes an image forming portion which forms a chart image on a sheet conveyed from a sheet feeding deck, a color measure portion which performs color measurement by reading the chart image formed by the image forming portion, and one or more controllers including one or more processors and one or more memories. The one or more controllers are configured to generate correction data based on color measurement results by the color measurer portion and a reference value, and perform correction for target image data by using the generated correction data. The reference value is obtained by performing color measurement by the color measure portion and is registered in association with a type of sheet on which the chart image is formed, and in a case where the type of sheet on which the chart image is formed is changed, the reference value is updated.

Examples described herein relate to a system consistent with the disclosure. For instance, the system may comprise a printing device including hardware to form markings on a print medium, a memory resource, and a controller to receive a print job to form the markings on the print medium, render a page description language of the print job to form the markings, determine an object type image of the print job, designate pixels of the determined object type image to form a covert dot pattern on the image, and adjust colors of the designated pixels to form the covert dot pattern on the markings.

Examples described herein relate to a system consistent with the disclosure. For instance, the system may comprise a printing device including hardware to form an image on a print medium, a memory resource, and a controller to receive a print job to form the markings on the print medium, designate a pixel of the received print job to form a covert dot pattern on the markings, where the pixel corresponds to a first laser intensity level; and adjust a laser intensity of the printing device to a second laser intensity level based on the first laser intensity level of the designated pixel to form the covert dot pattern.

A printer includes an input device for receiving an input operation to the printer from a user, a memory, a printing device, and a controller. The controller is configured to: receive print data from a terminal; in a case where the controller determines that the print data received from the terminal is raster data, determine whether a particular condition is met; in a case where the controller determines that the particular condition is met, send, to the terminal, request information that requests the terminal to send page description language (PDL) data; and, in a case where the controller receives the PDL data from the terminal after sending the request information to the terminal, allow the printing device to execute printing on a basis of the PDL data. The PDL data specifies types of drawing objects and drawing positions with commands.

In processing to thicken a white thin line, the application range thereof is controlled to as to prevent a white thin line not intended by a user from being thickened. The thickening processing is performed for a line that has a density less than or equal to a predetermined density and includes a pixel having attribute information of a drawing object; and not performed for a line that has a density less than or equal to the predetermined density and includes a pixel not having attribute information of the drawing object.

To reduce a feedback delay as much as possible while maintaining the suppression effect of the tone variation in a case where tone correction is performed real time during processing of a print job. The density reference value for tone correction is managed in association with the sheet type registered for the feeding cassette of the printing apparatus. Due to this, even in a case where print jobs are switched, the feedback of a parameter necessary for tone correction is not interrupted unless the sheet type registered for the feeding cassette is changed.