| 摘要 |
An apparatus to guide a printing sheet in an office machine such as a printer. The apparatus includes a sheet guide to guide and set the printing sheet placed in a plate which forms a printing sheet tray or cassette, a slide-fixing part to movably dispose the sheet guide on the plate, a locking part to lock the sheet guide to the plate after the sheet is guided and set by the sheet guide, and a pivot prevention part having a pair of racks formed parallel to each other on the plate, and a pair of pinions rotatably disposed in the sheet guide to engage the respective ones of racks. The pivot prevention part disperses a force imparted to the sheet guide, thereby enabling the sheet guide to move parallel with an edge of the sheet.
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