An image forming apparatus includes a generating unit configured to generate an image corresponding to at least part of a plurality of pages included in the print data according to acquisition of the print data, a holding unit configured to hold the image generated by the generating unit into a storage, and an obtaining unit configured to obtain images of all pages to be printed among the pages included in the print data according to the print instruction from the user, wherein the obtaining unit obtains the image of the page of which the image is already generated by the generating unit among the pages to be printed from the storage, and generates, after acceptance of the print instruction, an image of the page of which an image is not generated by the generating unit.

An image forming apparatus includes a generating unit configured to generate an image corresponding to at least part of a plurality of pages included in the print data according to acquisition of the print data, a holding unit configured to hold the image generated by the generating unit into a storage, and an obtaining unit configured to obtain images of all pages to be printed among the pages included in the print data according to the print instruction from the user, wherein the obtaining unit obtains the image of the page of which the image is already generated by the generating unit among the pages to be printed from the storage, and generates, after acceptance of the print instruction, an image of the page of which an image is not generated by the generating unit.

Perform printing by a printing portion onto the printing paper sheet after collating a content of a code optically or electromagnetically read by a reading device connected to a printer main body and a content of printing data supplied from a memory connected to this printer main body.

Perform printing by a printing portion onto the printing paper sheet after collating a content of a code optically or electromagnetically read by a reading device connected to a printer main body and a content of printing data supplied from a memory connected to this printer main body.

Colorful printing using more colors based on data for printing with a single color or few colors is enabled.

A printer control unit 15 includes a print data acquisition unit 15c, print data processing unit 15d, and print control unit 15e. The print data acquisition unit 15c acquires data for a print object and a command specifying the print position of the print object. Based on the print position specified by the command acquired by the print data acquisition unit 15c, the print data processing unit 15d applies a process setting an attribute of the print object, or a process replacing the print object with another print object.

Colorful printing using more colors based on data for printing with a single color or few colors is enabled.

A printer control unit 15 includes a print data acquisition unit 15c, print data processing unit 15d, and print control unit 15e. The print data acquisition unit 15c acquires data for a print object and a command specifying the print position of the print object. Based on the print position specified by the command acquired by the print data acquisition unit 15c, the print data processing unit 15d applies a process setting an attribute of the print object, or a process replacing the print object with another print object.

A recording device according to the present disclosure includes: a writer that rewrites schedule information visibly recorded on a recording medium and corresponding to a time from first schedule information to second schedule information; and a generator that generates the second schedule information on the basis of a time.

An image processing apparatus extracts provisional band data from image data. The apparatus calculates near white number for a target line. The near white number is number of pairs of first and second pixels. The first pixel is located on the target line, the second pixel is in positionally adjacent relation to the first pixel. At least one of the first pixel and the second pixel is a near white pixel. In a case where a prescribed border condition is met for the target line, the apparatus determines finalized band data so that a finalized band image includes at least part of the provisional band image, and has the target line as a borderline. In a case where a specific condition is met, the apparatus changes the target line to one of a plurality of candidate lines which is not selected as the target line.

An image processing apparatus extracts provisional band data from image data. The apparatus calculates near white number for a target line. The near white number is number of pairs of first and second pixels. The first pixel is located on the target line, the second pixel is in positionally adjacent relation to the first pixel. At least one of the first pixel and the second pixel is a near white pixel. In a case where a prescribed border condition is met for the target line, the apparatus determines finalized band data so that a finalized band image includes at least part of the provisional band image, and has the target line as a borderline. In a case where a specific condition is met, the apparatus changes the target line to one of a plurality of candidate lines which is not selected as the target line.

When printing on the same printing object with multiple print nozzles in the past, consideration was not given to cases in which the time relationships of the set times and times-to-be-printed become mismatched between the respective print items of the print nozzles. To solve this problem, an inkjet printer that prints on a conveyed printing object and has multiple print nozzles, multiple auxiliary control units for controlling the printing performed by the multiple print nozzles, and a common main control unit connected to the multiple auxiliary control units via communication unit is provided. The main control unit extracts the time relationship of the set times and the time relationship of the times-to-be-printed between the items to be printed by the respective print nozzles of the multiple print nozzles and revises the print data so as to preserve the time relationship of the set times.