Printhead compatible with various printers and ink-jet printer using the printhead
US6224184A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1997 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | Jun 26, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J25/34
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A printhead compatible with various printers, e.g. a printer having low print density or a printer having high print density, enables printing in the best capability of the printer. The printhead comprises: a determination circuit 24 which determines a type of a printer incorporating the printhead, and switches SW1 and SW2 which select a method of driving the printhead according to in the printer, on the basis of the determination result by the determination circuit 24. When the printhead is installed in the printer capable of printing at 360 dpi, four print dots printed at 720 dpi substantially express one dot printed at 360 dpi. Meanwhile, when the printhead is installed in the printer capable of printing at 720 dpi, one print dot expresses one dot printed at 720 dpi.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.