Image forming unit having means for preventing a cleansing blade from contacting an image holding member until image forming unit is used
US5038181A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1989 |
| Grant date | Aug 6, 1991 |
| Priority date | — |
| Expiry date | Oct 24, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/183
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A blade for cleaning an image holding member of an image forming unit is urged so as to contact the image holding member, and a member for obstructing the blade from contacting the image holding member by urged strength is arranged to release the obstruction. The member is further arranged so as to regulate returning action to the state of obstruction after the obstruction is released. Accordingly, when the blade is released from the state of obstruction by the obstruction member, the blade comes in contact with the image holding member by the urged strength and afterward it is kept in the state of contact since the obstructing function of the obstruction member is regulated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.