Laser process for making a filter for an ink jet
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United States of America Patent
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-
Aug 24, 1999
Grant Date -
N/A
app pub date -
Mar 2, 1995
filing date -
Mar 4, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A common recess, grooves, and common recess and/or column members in the grooves are formed on a base board at the same time, and such board is made a second base board, which is coupled to a first base board on which elements for liquid discharging energy are formed; hence obtaining an ink jet recording head provided with a filter unit in an arbitrary position in the region formed by the ink paths and the common liquid chamber. The filter unit can be processed by a single processing in the ink paths and/or the common liquid chamber to make it possible to prevent disabled discharge from taking place due to dust particles intermingled at the time of head manufacture. In this way, the discharging stability is enhanced, making a high-speed printing possible. A workpiece is efficiently processed by a single processing which is performed to process a three-dimensional configuration with respect to the direction in which the laser beam is irradiated.
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