Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Patent
1999-07-22
2000-07-04
Barlow, John
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
347 86, B41J 2175
Patent
active
060846186
ABSTRACT:
An ink jet printhead of an ink jet cartridge includes a filter plate that is downstream of the ink. Particularly, the filter plate is attached to the back of the heater chip of the printhead. The filter plate is in addition to a wire mesh filter that is disposed at the inlet of a plumbing standpipe that prevents particles which are shed from the ink reservoir from passing into the printhead chip assembly. The filter plate of the present invention prevents particles that originate in the plumbing standpipe channels below the wire mesh filter from clogging the bubble chambers of the heater chip of the printhead chip assembly. The filter plates are formed on a polymer sheet with a series of holes ablated using an eximer laser. The filter plates are bulk registered and laminated to the back of the heater chips wafer in sheet form during the circuit manufacturing process and then singulated when the wafer is diced into individual heater chips.
REFERENCES:
patent: 4153902 (1979-05-01), Kanayama
patent: 4864329 (1989-09-01), Kneezel et al.
patent: 5124717 (1992-06-01), Campanelli et al.
patent: 5141596 (1992-08-01), Hawkins et al.
patent: 5204690 (1993-04-01), Lorenze, Jr. et al.
patent: 5296875 (1994-03-01), Suda
patent: 5317339 (1994-05-01), Braun et al.
patent: 5481289 (1996-01-01), Arashima et al.
patent: 5716533 (1998-02-01), O'Neill et al.
patent: 6007176 (1999-12-01), Askren et al.
Barlow John
Lexmark International Inc.
Sanderson Michael T.
Stephens Juanita
LandOfFree
Filter for an inkjet printhead does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Filter for an inkjet printhead, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filter for an inkjet printhead will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1490951