Image forming method and apparatus forming combined toner images

Electrophotography – Control of electrophotography process – Control of developing

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399 72, G03G 1501

Patent

active

056004079

ABSTRACT:
An image forming method and apparatus creates two toner images on a single portion of an image member. The first toner image formed has multiple density levels. It is recharged before creating the second toner image. An aspect of the potential associated with the toner in the first toner image after the recharge step is monitored and used to control the process, for example, by setting a development bias on a development station used to tone the second toner image or by controlling the recharging step.

REFERENCES:
patent: 4821065 (1989-04-01), Ishii et al.
patent: 5142337 (1992-08-01), Karidis et al.
patent: 5298944 (1994-03-01), Sawayama et al.

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