Device and method for displaying an exchange message for a proce

Details Device and method for displaying an exchange message for a proce Device and method for displaying an exchange message for a proce

1995-11-09

1998-09-22

Moses, R. L.

Electrophotography

Diagnostics

Consumable

399 43, 399 10, G03G 2102

Patent

active

058129022

ABSTRACT:
A device for displaying an exchange message for a process cartridge installed within a body of an image forming apparatus informs a user when the process cartridge should be replaced. The process cartridge, which can be installed within and removed from the body, combines a photosensitive drum, a cleaning blade and a waste toner receptacle as a unitary structure. A display provides the user with predetermined messages. A video controller receives a print command from a host computer and controls a printing operation by increasing an internally stored sheet printing index value by one in response to each printed sheet, and enables output of a message indicating that the process cartridge should be exchanged through the display when the sheet printing index value is greater than a predetermined value.

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