Image forming apparatus
US7848669B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 2008 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Jun 6, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/1642
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes an image bearing member for bearing a toner image, a transfer member for forming a transfer portion for transferring the toner image onto a recording material in contact with the image bearing member, a vibration imparting portion for imparting vibration at a variable frequency to the recording material having passed through the transfer portion, and a control portion for controlling the frequency by the vibration imparting portion so that the frequency is decreased with an increasing length of the recording material having passed through the transfer portion during a process of passing the recording material through the transfer portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.