Techniques for generating status messages in image forming appar

Timing wheel for toner cartridge with dual springs

Toner age calculation in print engine diagnostic

Toner cartridge

Toner cartridge and image forming apparatus

Toner cartridge and image forming apparatus

Toner cartridge and mechanism for detecting remaining amount...

Toner cartridge avoiding spillage of toners

Toner cartridge having a toner agitator and a reciprocally...

Toner cartridge with self identification system

Toner concentration field measurement tool

Toner concentration measuring apparatus

Toner hopper lockout mechanism

Toner measurement and darkness control using printer systems

Toner powder level sensing using element and pulse signal and to

Toner quantity measuring technique in an electrophotographic pri

Toner remaining amount detecting device, toner remaining...

Toner remaining detection unit in an image forming apparatus

Toner replenishing and developer replacing device for a developi

Toner replenishment control method for image forming...