Maintenance station of ink jet printer and cap and pump included therein
US5619232A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 1994 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | Sep 20, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/530481
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An ink jet printer includes a maintenance station which is simple in construction and small-sized. A cap holder is provided with a suction port communicating with a cap through a communication hole, a discharge port and a vent port. Provided in the cap holder is a cylinder which rotates upon actuation of a piston and which is provided on an outer diameter portion thereof with connection holes such that a pressure chamber is connected to the suction port in a suction stroke, the pressure chamber is connected to the discharge port and the suction port is connected to the vent port in an exhaust stroke. The cap holder contains therein the vent port for a suction pump and an atmospheric opening valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.