Image forming apparatus

Details Image forming apparatus Image forming apparatus

1996-07-15

1998-05-19

Smith, Matthew S.

Electrophotography

Diagnostics

Consumable

399 29, 399260, 222DIG1, G03G 1508

Patent

active

057549168

ABSTRACT:
An image forming apparatus includes an image carrying member for carrying an image, a developing unit for developing an electrostatic image on the image carrying member, and a toner storage unit for storing the toners and replenishing the toners to the developing unit. In the image forming apparatus, a residual quantity of the toners within the toner storage unit is detected, and a quantity of toners substantially replenished to the developing unit from the toner storage unit is integrated. When a deficiency of the toner residual quantity is detected during a consecutive image forming operation, there is stopped and inhibited the image forming operation when an integrated value of the replenishing toner quantity reaches a predetermined value since the deficiency of the toner residual quantity was detected.

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