Print control apparatus and printing system

摘要

Systems and methods for reliably canceling a DMA transfer mode and accelerating printer initialization. A host device 3 for controlling a printer having a DMA transfer mode for printing by transferring image data associated with a received image print command to a print buffer 15 . The host device 3 has a print data generating unit 33 for generating the image print command, memory 35 for storing the data size of the image data associated with the image print command generated by the print data generating unit 33 , and a printer control unit 34 for sending to the printer 1 an initialization command having null data of the data size stored in memory 35 added to the beginning of the initialization command.