Image forming device operable by different power sources
US6619774B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 1998 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Nov 9, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J29/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet printer connected to a personal computer and normally driven by a PC battery accommodated in the personal computer. The ink jet printer detachably accommodates therein an auxiliary battery. The printer has a control portion and a driving portion for moving a print head. If a voltage level of the PC battery becomes less than a threshold voltage during printing operation, the electrical connection between the PC battery and the control portion is maintained, whereas a power source to the driving portion is switched from the PC battery to the auxiliary battery. After the printing operation is completed, a power source to the control portion is switched from the PC battery to the auxiliary battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.