IMAGE FORMING APPARATUS

摘要

An image forming apparatus includes a cassette chamber, a paper feed cassette, a sheet size sensor, a lift-up sensor, and an arithmetic control unit. The paper feed cassette can be mounted in the cassette chamber, and lifts up a recording sheet placed in the paper feed cassette upon being mounted in the cassette chamber. The arithmetic control unit is configured to decide that the paper feed cassette is mounted when the lift-up sensor detects that the recording sheet is lifted up, despite the sheet size sensor having detected that the paper feed cassette is not mounted.

主权项

1. An image forming apparatus comprising:
a cassette chamber; a paper feed cassette configured so as to be mounted in the cassette chamber, and to lift up a recording sheet placed in the paper feed cassette upon being mounted in the cassette chamber; a cassette detection unit provided in the cassette chamber, and configured to detect whether the paper feed cassette is mounted in the cassette chamber; a lift-up detection unit provided in the cassette chamber, and configured to detect whether the recording sheet is lifted up; and a decision unit configured to decide that the paper feed cassette is mounted when the lift-up detection unit detects that the recording sheet is lifted up, despite the cassette detection unit having detected that the paper feed cassette is not mounted.