Printing apparatus and method for controling a plurality of sheet storage units

摘要

A printing apparatus according to this invention includes a plurality of paper feed cassettes. Upon receiving a print job which designates a paper feed cassette, the printing apparatus determines whether the paper size of the paper feed cassette designated by the print job that is stored in a memory matches the paper size needed for executing the print job. If the printing apparatus determines that these paper sizes do not match each other, it restricts execution of the print job. If a feeding unit is set while execution of the print job is restricted, the printing apparatus decides the set feeding unit as a feeding source of paper used to execute the print job. The printing apparatus feeds paper contained in the decided feeding unit, and executes the print job.

主权项

1. A printing apparatus which has a plurality of sheet storage units, comprising:
a receiving unit configured to receive, from an external apparatus, a print job in which one of the plurality of sheet storage units and one of a plurality of sheet sizes are designated; an obtaining unit configured to obtain a sheet size which is stored in association with the designated sheet storage unit; a determination unit configured to determine whether the sheet size obtained by the obtaining unit matches the designated sheet size; a detecting unit configured to detect that a sheet storage unit, among the plurality of sheet storage units, is closed after it is determined that the sheet size of a sheet stored in the designated sheet storage unit does not match the designated sheet size; a changing unit configured to change a sheet feeding source from the designated sheet storage unit to the sheet storage unit detected by the detecting unit; an accepting unit configured to accept a predetermined instruction from a user; and a setting unit configured to set a first mode in which a sheet is fed from the sheet storage unit detected by the detecting unit in response to accepting the predetermined instruction or a second mode in which a sheet is fed from the sheet storage unit detected by the detecting unit without accepting the predetermined instruction; wherein a sheet is fed from the sheet storage unit detected by the detecting unit in response to accepting the predetermined instruction in a case where the first mode is set, and a sheet is fed from the sheet storage unit detected by the detecting unit without accepting the predetermined instruction in a case where the second mode is set.