Control to detect air knife blockage

Details Control to detect air knife blockage Control to detect air knife blockage

2007-10-26

2010-06-22

Gray, David M (Department: 2852)

Electrophotography

Image formation

Fixing

C271S309000

Reexamination Certificate

active

07742730

ABSTRACT:
A system for detecting stripper device blockage in a printing system is disclosed. The system includes a fusing member which during operation contacts a sheet of printer media to fuse a marking material to the sheet, a stripping device configured to apply pressurized air from an air supply through at least one orifice to the fuser member in order to separate the sheet from the surface and a flow measurement device in line with the air supply which measures air flow. The air flow device will assist in performing an assessment check which may include taking a baseline measurement of air flow and a diagnostic measurement of air flow. In the case where the difference between the diagnostic measurement and baseline measurement is above a different threshold, corrective action may be taken.

REFERENCES:
patent: 6243556 (2001-06-01), Shin
patent: 7505723 (2009-03-01), Roof
patent: 2004/0120735 (2004-06-01), Baba et al.

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