18772688. IMAGE FORMING APPARATUS (CANON KABUSHIKI KAISHA)

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IMAGE FORMING APPARATUS

Organization Name

CANON KABUSHIKI KAISHA

Inventor(s)

Keitaro Nakata of Shizuoka (JP)

Takuya Oka of Kanagawa (JP)

Hisashi Taniguchi of Shizuoka (JP)

IMAGE FORMING APPARATUS

This abstract first appeared for US patent application 18772688 titled 'IMAGE FORMING APPARATUS

Original Abstract Submitted

An image forming apparatus capable of performing a supplying operation for supplying toner from a supply container detachably mountable thereto includes an image bearing member, a developing member, a developing container, a detecting portion, a notifying portion, and a controller for carrying out control so as to cause the notifying portion to notify a timing to perform a toner supplying operation when a toner amount detected by the detecting portion is smaller than a threshold. The controller carries out control so as to set the threshold to a first threshold in a case where a print ratio after the last supplying operation is a predetermined print ratio or more and to set the threshold to a second threshold higher than the first threshold in a case where the print ratio is less than the predetermined print ratio.