Toner supplement control device operative concurrent with image

Details Toner supplement control device operative concurrent with image Toner supplement control device operative concurrent with image

1992-11-13

1994-07-19

Fuller, Benjamin R.

Photocopying

Contact printing

Light boxes

355246, G03G 2100

Patent

active

053313771

ABSTRACT:
A toner supplement control device incorporated in an image forming apparatus for executing the supplement of a fresh toner to a developing unit only when a particular document image process mode is under way. The particular process mode is any one of a document image receive mode, a document image record mode, a document image copy mode, a supervisory report record mode, etc. In the event of initialization of the apparatus, during ordinary recording operation, and when a cleaner and toner magazine (CTM) is to be replaced, whether or not a fresh toner is present in the CTM is determined on the basis of the condition of a fresh toner existing in a developing unit.

REFERENCES:
patent: 4660960 (1987-04-01), Fukunaga et al.
patent: 4963940 (1990-10-01), Nemoto et al.
patent: 5036363 (1991-07-01), Iida et al.
patent: 5095331 (1992-03-01), Takano

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