Development cartridge and image forming apparatus

Details Development cartridge and image forming apparatus Development cartridge and image forming apparatus

1999-08-31

2000-11-21

Chen, Sophia S.

Electrophotography

Diagnostics

Consumable

399 12, 399112, G03G 1500

Patent

active

061514594

ABSTRACT:
A developing cartridge detachably mountable to the main assembly of an image forming apparatus includes a toner carrying member for carrying toner to a developing station at which an electrostatic image formed on an image bearing member is developed with the toner. The cartridge also includes a toner accommodating portion for accommodating the toner to be supplied to a developer carrying member. The cartridge further includes an engaging portion, the shape of which is different depending on the type of the toner it contains. The engaging portion is engageable with an engaging portion of one of two or more developing cartridge slots provided in a main assembly of the image forming apparatus. The cartridge also includes a light transmitting portion disposed in the engaging portion to transmit light to be detected by a detector provided in the main assembly of the image forming apparatus to detect the amount of the toner in the toner accommodating portion.

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