Redundant full width array thermal ink jet printing for improved reliability
US5587730A · kind A · utility
90Cited by
4References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 1994 |
| Grant date | Dec 24, 1996 |
| Priority date | — |
| Expiry date | Sep 30, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/20
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal ink jet printer having redundant printing capability includes a primary printhead for printing ink drops of a first color and a secondary printhead for printing ink drops of the first color and/or other colors. The secondary printhead selectively prints according to either a first mode or a second mode. In the first mode, the secondary printhead supplements the primary printhead such that both printheads print ink drops of the first color. In the second mode, if the primary printhead fails, the secondary printhead prints ink drops of the first color in place of the primary printhead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.