The present invention is to provide a printer device capable of obtaining a print result having a good balance between characters in a predetermined print area and thus having good appearance. When the print length of an input character string is to be corrected, a comparison is first made in terms of the length of blank in each character and/or clearance between characters. In a case where minus correction is performed to reduce the print length, the blank or clearance is deleted by one column at a time preferentially from the area where the length of the blank and/or clearance is larger; while in a case where plus correction is performed to increase the print length, the clearance is added by one column at a time preferentially to the area where the length of the blank and/or clearance is smaller.

In a case where a tile image drawing instruction is included in a Graphics Device Interface (GDI) drawing instruction output from a GDI application, there is a difference between a result of drawing the drawing instruction with a GDI printer driver and a result of drawing the drawing instruction with a V4 printer driver in some cases. In a case where an application of an output source of an XML Paper Specification (XPS) drawing instruction is a GDI application and a tile image drawing instruction is included in the XPS drawing instruction, the aspect of the embodiments performs modification of the tile image drawing instruction so that resolution of a tile image with which pattern drawing is performed in accordance with the tile image drawing instruction is changed.

An image forming apparatus includes: an image processor configured to perform first image processing on image data having a first resolution and to add tag data to a target pixel where second image processing is to be performed; a resolution converter configured to convert the image data into image data having a second resolution higher than the first resolution, and to perform the second image processing based on arrangement of the image data having the first resolution and the tag data; a pulse generator configured to generate an on-off modulation signal and an application-current switching signal in accordance with the image data having undergone the second image processing; and a light source driver configured to drive the light source in accordance with a current setting value output from an application current setter depending on the application-current switching signal and the on-off modulation signal.

An image processing device which generates a halftone image includes: an image size adjustment unit which adjusts a size of the input image; and a halftone processing unit which performs halftone processing on the input image size-adjusted to generate a halftone image, wherein: the image size adjustment unit adjusts the input image to a same size in two or more printing modes among the plurality of printing modes, and the input image of the same size is subjected to the halftone processing; the unit limits arrangement of dots constituting the halftone image to dot arrangeable places of a selected printing mode among the plurality of printing modes, and performs the halftone processing based on an error diffusion method using an error diffusion coefficient matrix according to the selected printing mode; and the functions performed by the image size adjustment unit and the halftone processing unit are achieved using a computer.

The present invention is to provide a printer device capable of obtaining a print result having a good balance between characters in a predetermined print area and thus having good appearance. When the print length of an input character string is to be corrected, a comparison is first made in terms of the length of blank in each character and/or clearance between characters. In a case where minus correction is performed to reduce the print length, the blank or clearance is deleted by one column at a time preferentially from the area where the length of the blank and/or clearance is larger; while in a case where plus correction is performed to increase the print length, the clearance is added by one column at a time preferentially to the area where the length of the blank and/or clearance is smaller.

Disclosed are an image processing device, a printing apparatus, an image processing method, and a program capable of making processing common among printing modes to simplify an entire image processing flow in image processing based on a plurality of printing modes with different definition. An image processing unit 14 includes an image size adjustment unit 20 which adjusts the size of an input image, and a halftone processing unit 24 which performs halftone processing on the input image size-adjusted by the image size adjustment unit 20 to generate a halftone image. The image size adjustment unit 20 adjusts the input image to the same size in two or more printing modes among a plurality of printing modes with different definition, and the input image of the same size is subjected to halftone processing in the halftone processing unit 24.

A tape printing device that executes printing on a tape-like printing medium includes an input portion that receives input of a character string and designation of a printing condition, a controller, a storage portion storing at least one definition table that is used when particular printing is executed in which sizes of respective characters included in the character string are stepwise changed to print the character string and that defines the sizes of the respective characters included in the character string in correspondence with the number of characters in the character string and a width of the printing medium, and a printing portion. The controller, when the printing condition designates the particular printing, sets the sizes for the respective characters included in the character string based on the definition table, and generates specific print data indicating that each character is to be printed in the size set for the character.