Image forming apparatus
US5619316A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1996 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | Feb 1, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00033
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an image forming apparatus, a toner collection mode is executed when a series of image formation modes ends and when the image formation mode is continuously repeated a preselected number of times. A toner image sensing mode for sensing a reflection density from a reference toner image is executed every time the image formation mode is repeated a preselected number of times. The apparatus is capable of surely and efficiently removing toner left on an image carrier after image transfer, and collecting the reference toner image with a developing unit. The reference toner image is prevented from contaminating an image transferring unit and a cleaning unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.