Image printing method with reduced banding
US8218985B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 31, 2010 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | May 10, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/081
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Cross-track banding artifacts and wear in an electrophotographic (EP) print engine are reduced. A development member and a supply member are disposed so that charge is transferred between them in a charge-transfer region. The members are retained in a first position with respect to each other for a first dwell time, and neither member is rotated during the first dwell time, so that charge is transferred between members in the charge-transfer region. One of the members is rotated so that at least one point on one of the members is moved out of the charge-transfer region. The members are retained in a second position with respect to each other for a second dwell time that is greater than the time for one revolution of the development member, wherein neither member is rotated during the second dwell time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.