Printing head for ink-jet printer, has ink chamber with nozzle and controlled cover device having cover element arranged outside at ink chamber, which locks nozzle air-tight in cover position and releases in working position

摘要

The head has a controlled cover device (50,57) for covering a nozzle (6). The cover device comprises a cover element (53) shifted in its position. The cover element is arranged outside at the ink chamber (5), which locks a nozzle airtight in a cover position and releases in a working position (50b). The cover device comprises a cover plate (51) and an operating device (56), where the plate is movable between working position and cover position. An independent claim is included for a method for operating continuously working ink jet printer with a printing head, which has an ink chamber with a nozzle.