Orifice plate cleaner for hot melt ink jet

Details Orifice plate cleaner for hot melt ink jet Orifice plate cleaner for hot melt ink jet

B - Operations, Transporting

41

J

101/96.0221

B41J 2/165 (2006.01)

Patent

CA 2001872

Orifice Plate Cleaner for Hot Melt Ink Jet Abstract In the embodiment of the cleaning device de- scribed in the specification, a web of paper (11) is movable past the orifice plate (44) of an ink jet head (45) from a supply roll (12) to a take-up roll (13). The cleaning device has a movable front end portion (26) with two pressure bars (28,29) positioned to urge the web of paper against two portions of the orifice plate, one portion being in line with the orifices (43) and the other below the orifices. The pressure bar supports are arranged so that the bar (28) posi- tioned in line with the orifices (43) engages the web after the other bar (29) has urged the web against the orifice plate. The cleaning device also collects ink ejected during purging of air from the system and may be positioned to prevent ejection of ink during an internal purging operation. (Fig. 2)

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