Sheet inverting unit and an imaging forming apparatus employing the same
US5337134A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Aug 10, 1993 |
| Grant date | Aug 9, 1994 |
| Priority date | — |
| Expiry date | Aug 10, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00392
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed are a single-side image forming device with a sheet inverting unit attached thereto for image forming on the reverse side of a sheet, and a double-side image forming apparatus that employs such a sheet inverting unit. The sheet inverting unit is detachable from an image forming apparatus, which has a sheet cassette; an image forming mechanism; a stacker; and a feeding path along which the sheet supplied from the sheet cassette is conveyed first to the image forming mechanism and then to the stacker. The sheet inverting unit comprises a switching lever for selectively guiding the image bearing sheet either toward the stacker or upward of the image forming device; switchback rollers for feeding the sheet guided upward by the switching lever and then inversely feeding the sheet; a guide path, which extends from the switchback rollers to a terminus in the vicinity of an inserting port of the image forming device; and feeding rollers provided along the guide path. The double-side image forming apparatus comprises: an image forming device, which has a sheet cassette, an image forming mechanism, a stacker, a feeding path along which the sheet is conveyed first to the image formi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.