PRINT HOST, PRINTER AND PRINT SYSTEM COMPRISING THEM

摘要

PROBLEM TO BE SOLVED: To shorten the time to be elapsed before discharging a printed sheet after start of scanning. SOLUTION: During output of a print data including an image data, a print host delivers a print preparation command including a sheet feed command at a timing leading the sheet feed time of printer ahead of the output completion timing of print data and then delivers a print start command including a transfer command to a print sheet at the end of print data output. The printer executes sheet feed immediately upon receiving the print preparation command even during input of print data from the print host.