Printing device

Abstract

Abstract PURPOSE:To prevent toner from being erroneously inserted by installing a bar code scanner in a toner hopper, reading the bar code of a toner cartridge side, and operating misinsertion preventive shutter. CONSTITUTION:When the toner cartridge 72 is replaced, the bar code 6 provided in the toner cartridge 72 is read by the bar code scanner 1 installed in the toner hopper 70 and a processor 2 decides the read result. When the read result is not normal, the processor 2 outputs a signal to a driver 3, which outputs a signal to a shutter motor 4; and then an insertion opening is closed with the erroneous insertion preventive shutter 5 to prevent a wrong kind of toner from being erroneously inserted and a signal is outputted to an alarm device 7 at the same time to generate an alarm. Consequently, the erroneous insertion of toner is prevented and the occurrence of serious trouble to a developing device is prevented.

Inventors

• 👤 Hideaki Abe
• 👤 英昭 阿部
• 👤 Manabu Inoshita
• 👤 井ノ下　学

Bibliographic Details