| 摘要 |
PROBLEM TO BE SOLVED: To make mechanisms common, the mechanisms for detecting attaching/detaching of a paper-feed cassette, presence/absence of recording paper, and a rising stop position of a lift plate.SOLUTION: When the paper-feed cassette 61 is removed, a contact piece 642 is brought to first inclination, a light shielding piece 643b reaches a first position, and a first sensor 651 and a second sensor 652 are turned OFF. When the paper-feed cassette 61 having no recording paper P is inserted, the contact piece 642 is brought to second inclination by an opening edge part 611b, the light shielding piece 643b reaches a second position, and the first sensor 651 is turned OFF with the second sensor 652 turned ON. When recording paper P is placed on the lift plate 611, the contact piece 642 is brought to third inclination by the recording paper P, the light shielding piece 643b reaches a third position, and the first sensor 651 and the second sensor 652 are turned ON. When the lift plate 611 is raised to the rising stop position, the contact piece 642 is brought to fourth inclination, the light shielding piece 643b reaches a fourth position, and the first sensor 651 is turned ON with the second sensor 652 turned OFF. |
