| 摘要 |
PROBLEM TO BE SOLVED: To improve the operation efficiency of a printing device by judging the presence/absence of paper corresponding with paper designating information which is administered, and at the same time, changing the priority order of printing data when there is no paper corresponding with the paper designating information. SOLUTION: An A4 size paper is housed in a paper feeding portion 5, a B5 size paper is housed in a paper feeding portion 6, and a B4 size paper is housed in a paper feeding portion 7. When information to show that there is no A4 size paper in the paper feeding portion 5 is outputted to a printing output portion 4 from the paper feeding portion 5, the printing output portion 4 transmits the information to a printing data control portion 3. Then, the printing data control portion 3 stops a process for printing data which is about to be processed. In addition, the printing data control portion 3 outputs a command to a standing-by printing data housing portion 2 in such a manner that the printing data of which the process has been stopped may be removed from a processing line for printing while keeping the priority order as is, and moved to a stand-by line. Also, the absence of the A4 size paper, the pending of a printing process and the replacing of printing orders due to the absence are notified to a host computer 1.
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