Search International and National Patent Collections

1. (WO1999004975) METHOD AND DEVICE FOR COVERING AND CLEANING THE NOZZLES OF AN INK-JET PRINT HEAD

Pub. No.:    WO/1999/004975    International Application No.:    PCT/DE1998/002082
Publication Date: Feb 4, 1999 International Filing Date: Jul 23, 1998
IPC: B41J 2/175
Applicants: SIEMENS NIXDORF INFORMATIONSSYSTEME AG
BAITZ, Guenter
BURCHART, Joachim
MALKE, Wolfgang
Inventors: BAITZ, Guenter
BURCHART, Joachim
MALKE, Wolfgang
Title: METHOD AND DEVICE FOR COVERING AND CLEANING THE NOZZLES OF AN INK-JET PRINT HEAD
Abstract:
The invention relates to a method and device for covering and cleaning the nozzles of an ink-jet print head (12), said nozzles ending in a nozzle discharge surface (86) and said ink-jet print head (12) being provided with an ink chamber (44). The ink-jet print head (12) can be moved into a so-called park position outside of the printing area. According to the invention, the nozzle discharge surface (86) of the ink-jet print head (12) is connected to a suction device (48) in the area of the park position of the ink-jet print head (12), said connection being liquid-tight. The suction device (48) sucks the ink out of the ink chamber (44), through the nozzles of the ink-jet print head (12), into an ink reservoir (28). Said suction device is activated by a control movement of the ink-jet print head (12).