Image-forming apparatus and method for image recording on two sides of a medium using a positioning mark
US6608985B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2001 |
| Grant date | Aug 19, 2003 |
| Priority date | — |
| Expiry date | Sep 24, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/232
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image forming apparatus includes a first image bearing member, a second image bearing member, a positioning mark forming device configured to form a positioning mark on the second image bearing member, and a positioning mark detecting device configured to detect the positioning park formed on the second image bearing member. A first side visual image formed on the first image bearing member is transferred onto the second image bearing member for transferring from the second image bearing member onto a first side of a recording medium. A second side visual image formed on the first image bearing member is transferred from the first image bearing member onto a second side of the recording medium, so that the first and second side visual images are obtained on the first and second sides of the recording medium, respectively. When forming the first side and second side visual images on the first and second sides of the recording medium, an image forming operation is controlled according to detection of the positioning mark with the positioning mark detecting device such that positions of the first side and second side visual images on the first and second sides of the recording medi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.