Toner cartridge having protrusion to show type of toner...

Toner cartridge identification system for a printer

Toner cartridge identification system for a printer

Toner cartridge identifying apparatus for an image forming...

Toner cartridge with integral MICR font, and methods

Toner container with foolproof adaptor

Toner replenishing container

Toner supply device and toner cartridge

Transfer device including detecting mechanism for detecting...

Transfer unit with provision for detecting whether it is an...

Universal printer chip

Universal smart chip cartridges for multiple printing apparatus

Upgradeable imaging systems with configurable printing routines

Use status detecting mechanism and image-producing unit

Wireless communication system and image forming device