Image Forming Apparatus
US7568778B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2006 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Jan 31, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J11/008
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An image forming apparatus including: (a) a feed mechanism including a motor and a feeder moved by the motor for feeding a medium; (b) a recording head for ejecting an ink toward the medium to form an image; (c) a feed controller for controlling the motor so as to move the feeder to a target operating position that causes the medium to be positioned in a desired position; and (d) an ink ejection controller for causing ink ejection portions of the recording head to eject the ink toward the medium. The feed controller includes: a target-operating-position changer for changing the target operating position as an original target operating position to a modified target operating position in which influence of a cyclic variation of an operation velocity of the feeder is smaller than in the original target operating position. The ink ejection controller includes: an ink-ejection portion shifter for shifting the ink ejection portions in upstream or downstream direction in which the desired position is shifted as a result of change of the target operating position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.