| 摘要 |
A printing apparatus used in a computer system selects either one of a plurality of paper feed cassettes and prints image data onto a cut sheet supplied from the selected cassette. Paper sensors are individually attached at predetermined positions which are located just after a plurality of paper feed cassettes at the same distance. The paper conveying times from the attaching positions of the paper sensors to a print start request position have been preset. When the cassette is switched during the printing operation, the predetermined paper feed timing time is changed. When switching from the cassette at a near position to the cassette at a remote position, the paper feed timing time is set to a short time and the paper feeding operation from the cassette on the switching side is instructed. When switching from the cassette at a remote position to the cassette at a near position, the predetermined paper feed timing time is set to a long time and the paper feeding operation from the cassette on the switching side is instructed.
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