Ink jet recording apparatus, method of discharging ink from capping unit incorporated in the apparatus, and ink composition used with the apparatus
US6481826B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2000 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Sep 7, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/16508
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A recording head has a nozzle formation face provided with nozzle orifices from which ink drops are jetted to print on a recording medium in accordance with print data. A capping unit has an internal space communicated with a negative pressure generator, and an opening for sealing the nozzle formation face and sucking ink from the nozzle orifices into the internal space by negative pressure generated by the negative pressure generator. An ink discharge port is formed on a bottom portion of the internal space of the capping unit. An ink leader is provided in the capping unit so as to generate capillary action to lead the sucked ink toward the ink discharge port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.