Image-forming machine
US5052670A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1989 |
| Grant date | Oct 1, 1991 |
| Priority date | — |
| Expiry date | Sep 18, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1696
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image-forming machine comprising a conveying passage for conveying a sheet material through a transfer zone, a first and a second feed system for feeding the sheet material to the conveying passage, a first feed passage for conducting the sheet material delivered from the first feed system to the conveying passage, a second feed passage for conducting the sheet material delivered from the second feed system to the conveying passage, and a first and a second opening-closing member for opening and closing the first and second feed passages. Various improvements are made on the first and second opening-closing members. Further provided are an improvement for suppressing noises, an improvement for preventing folding of a sheet material, an improvement for easily switching over to a mode of forming an image on both surfaces of a sheet material, an improvement for accurately conducting the sheet material from a reversal holding portion to a return passage, and an improvement for positioning the sheet material received in the receiving-refeeding portion at a predetermined widthwise position in the above and other types of image-forming machines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.