Invention Grant
US09446611B2 Image forming apparatus capable of reducing downtime of printing when paper stored in paper feeding cassette run out during printing 有权
当打印期间储存在供纸盒中的纸张耗尽时,能够减少打印停机时间的图像形成装置

Image forming apparatus capable of reducing downtime of printing when paper stored in paper feeding cassette run out during printing
Abstract:
Provided is an image forming apparatus including a plurality of paper feeding cassettes, a paper detecting sensor, a detecting sensor, a paper feeding switching determination part, and a system control part. The paper feeding switching determination part confirms a state change in the paper feeding cassettes, after the elapse of awaiting time until a start of determination of whether or not switching of paper feeding is possible, if it is determined that a document stored in the paper feeding cassettes runs out, based on an operating condition of the apparatus, a change in detection results by the paper feeding detecting sensor, and detection results by the detecting sensor, and determines whether or not the switching of paper feeding is possible. The system control part controls the switching of paper feeding based on the determination results by the paper feeding switching determination part.
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