Ink jet printer and printing system using the same
US6494560B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1999 |
| Grant date | Dec 17, 2002 |
| Priority date | — |
| Expiry date | Jan 29, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/1657
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
When ink is sucked from the nozzles during a cleaning process, a rubber cap having a plural number of small spaces independently operable for ink suction is applied to a print head, and only the small space associated with a clogged nozzle of those nozzles of the print head is connected to a suction pump. A user looks up in advance the number and location of a clogged nozzle, judges the cause of the clogging of the nozzle on the basis of the number and location of the clogged nozzle, and selects a suitable type of cleaning process, a selective cleaning (based on the specified-nozzle suction) or a conventional cleaning (based on the all-nozzle suction).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.