Image forming apparatus
US5034780A · kind A · utility
18Cited by
12References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1989 |
| Grant date | Jul 23, 1991 |
| Priority date | — |
| Expiry date | Sep 25, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/55
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus is provided with sensors for detecting existence of sheets of paper at a plurality of positions in transport paths within the image forming apparatus. A circuit part counts a number of sheets of paper remaining within the image forming apparatus when a transport abnormality occurs based on outputs of the sensors. This number of sheets of paper remaining within the image forming apparatus when the transport abnormality occurs is displayed on a display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.