Copying apparatus having a device for holding sheets
US4955597A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1988 |
| Grant date | Sep 11, 1990 |
| Priority date | — |
| Expiry date | Jun 21, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0089
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A copying apparatus includes an image forming device, a sheet reversal mechanism, and a sheet holding device having a tray, each of the components being independently separable. The sheet reversal mechanism transports to the tray each sheet either in face-up condition or with its face turned downward. The tray is lowered according to the volume of sheets loaded thereon and is caused to shift on a horizontal plane under a specified timing control. The lowering of the tray is effected through detection by a sensor of the volume of sheets loaded on the tray. After each such lowering, any downward movement of the tray is inhibited until a next sheet is loaded on the tray.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.