Electrophotography – Diagnostics – Consumable
Reexamination Certificate
2007-09-25
2007-09-25
Chen, Sophia S. (Department: 2852)
Electrophotography
Diagnostics
Consumable
C399S027000, C399S043000
Reexamination Certificate
active
11232354
ABSTRACT:
In an image forming device, when a replacement timing of a photoconductive drum unit has been reached, the image forming device determines whether or not a replacement timing of a developing unit is close, but not yet actually reached. When the replacement timing of the developing unit is close but not yet reached, the image forming device collectively displays a message to urge the user to replace both the photoconductive drum unit and the developing unit at the same time to avoid problems such as a foggy image.
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Official Communication issued in the British corresponding Patent Application No. GB0517828.0, mailed on Jan. 19, 2006.
Chen Sophia S.
Keating & Bennett LLP
Murata Machinery Ltd.
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