Toner remaining detection unit in an image forming apparatus

Details Toner remaining detection unit in an image forming apparatus Toner remaining detection unit in an image forming apparatus

1998-02-19

1999-08-24

Grimley, Arthur T.

Electrophotography

Diagnostics

Consumable

399 61, 399262, G03G 1508

Patent

active

059435259

ABSTRACT:
A toner remaining detection unit is provided that displays the amount of remaining toner according to the number of transitions from a low state to a full state. This operation ensures that the amount of remaining toner is not determined incorrectly when toner fluidity is reduced, while change of remaining state display is minimized when toner fluidity is good. If toner is not being stirred, initialization at toner replacement is performed. If the toner is being stirred, toner display control processing is performed. If neither an empty nor a low state is detected and a counter value does not reach 15, low display is turned off. If the previous state was a low state, 1 is added to the count value. When a low state is detected, or when a low state is not detected but the counter value reaches 15, the low display is turned on.

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