ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, TONER CARTRIDGE FOR THE SAME, AND IMAGING CARTRIDGE FOR THE SAME

摘要

An electrophotographic image forming apparatus may include an imaging cartridge and a toner cartridge that are detachably attached to a main body, a first optical sensor that is mounted in the imaging cartridge and detects a toner level in a development chamber, and a second optical sensor that is mounted in the toner cartridge and detects a toner level in the development chamber.