Apparatus for and method of forming image under controlled...

Details Apparatus for and method of forming image under controlled... Apparatus for and method of forming image under controlled...

2005-03-22

2005-03-22

Tran, Hoan (Department: 2852)

Electrophotography

Diagnostics

Unit or part identification

C399S049000

Reexamination Certificate

active

06871026

ABSTRACT:
A condition controlling process is executed when parameters expressing a state of toner within a developer reaches predetermined threshold values. On each one of two parameters, namely, a dot count value which is indicative of a toner consumption amount (an integrated value of the number of dots formed using an exposure beam) and a developer roller rotating time which is indicative of the degree of toner fatigue, a threshold value (denoted at the dotted lines) which triggers execution of the condition controlling process is set. At the time that the path d of dots which are expressed as combinations of these parameters intersects each dotted line (the intersections (1) through (6)), the condition controlling process is executed.

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