HEAD UNIT FOR EJECTION APPARATUS AND EJECTION APPARATUS...

Details HEAD UNIT FOR EJECTION APPARATUS AND EJECTION APPARATUS... HEAD UNIT FOR EJECTION APPARATUS AND EJECTION APPARATUS...

2005-06-28

2005-06-28

Feggins, K. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

Reexamination Certificate

active

06910762

ABSTRACT:
A head unit for an ejection apparatus has a main carriage which moves relative to a workpiece. A sub-carriage is detachably held by the main carriage. Function liquid droplet ejection heads are mounted on the sub-carriage. The head unit has a piping joint disposed on the sub-carriage at a position away from the function liquid droplet ejection heads. The piping joint detachably connects together an apparatus-side piping material communicated with a liquid supply tank provided in the ejection apparatus and a head-side piping material communicated with the function liquid droplet ejection head.

REFERENCES:
patent: 6712460 (2004-03-01), Ohashi et al.

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