Image forming method and apparatus capable of effectively...

Details Image forming method and apparatus capable of effectively... Image forming method and apparatus capable of effectively...

2005-12-22

2009-10-20

Gray, David M (Department: 2852)

Electrophotography

Diagnostics

Consumable

C399S058000, C399S254000

Reexamination Certificate

active

07606505

ABSTRACT:
An image forming apparatus includes image forming units, a toner supply device, a common-unit detection device, an initial operation execution device, and a determination device. Each image forming unit is detachably provided in the image forming apparatus, and includes at least a development device containing toner. At least two of the image forming units are common image forming units having a common structure. When the common-unit detection device detects a common image forming unit at installation thereof, the initial operation execution device supplies a predetermined amount of toner to a development device of the common image forming unit and mixes to charge the toner by friction for a predetermined time period. Then, the. determination device detects whether the toner in the development device is charged to a predetermined level, and determines, based on the detection, whether to mix the toner one more time for another predetermined time.

REFERENCES:
patent: 6148161 (2000-11-01), Usui et al.
patent: 6389260 (2002-05-01), Kataoka et al.
patent: 2005/0078969 (2005-04-01), Kikuchi
patent: 2005/0084272 (2005-04-01), Kikuchi
patent: 2005/0095017 (2005-05-01), Kikuchi
patent: 2005/0213997 (2005-09-01), Yoshizawa
patent: 2001-083862 (2001-03-01), None

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