Canon Kabushiki Kaisha

Toshiaki Sako

Kenji Watanabe

Hiroshi Hagiwara

Hiromitsu Kumada

Takateru Ohkubo

Takehiro Uchiyama

Takashi Kuwata

Hideki Ohta

Youhei Suzuki

Takamichi Matsuo

Kenji Abe

Ken-ichi Iida

Kenichi Iida

Shun-ichi Ebihara

Tomonori Shida

An image forming apparatus includes a stacking portion, a feeding unit, an image forming unit, a storing unit, an inputting unit for inputting paper kind information of the recording material, and a calculating unit. When the paper kind information of the recording material inputted by the inputting unit is different from paper kind information of the recording material stored in the storing unit, the image forming unit forms the image on the recording material in an image forming condition determined on the basis of the paper kind information of the recording material inputted by the inputting unit, and the calculating means calculates the degree of deterioration of the feeding unit depending on the paper kind information of the recording material stored in the storing unit.

Image forming apparatus and management system for calculating a degree of deterioration of a fixing portion

An image forming apparatus includes a photosensitive section driven to rotate, a light emission unit configured to emit light to form electrostatic latent images on the photosensitive section, a process section configured to form images on the photosensitive section, a detection unit configured to detect an output generated via the process section when an electrostatic latent image for correction passes through a position facing the process section, and a control unit configured to execute a correction of a position of an electrostatic latent image in image formation based on a detection result from the detection unit.

Color image forming apparatus

An image forming apparatus includes: a sheet feed unit that feeds a sheet to an image forming unit forming a toner image on the sheet; a fixing unit that fixes the toner image formed in the image forming unit to the sheet; and a control unit that controls the sheet feed unit, when starting duplex image formation for forming both sides of the sheet after an one-side image formation, the control unit retards a timing to cause the sheet feed unit to start the sheet feed operation as the number of sheet with an image formed on one side thereof in the one-side image formation is greater.

Image forming apparatus

The image forming apparatus includes process units that are closely arranged around respective photosensitive members and act on the photosensitive members, a light emission section that forms an electrostatic latent image for detection on the photosensitive member and a detection section that detects that the electrostatic latent image passes through a position facing the process unit, and a control section that performs misregistration correction control based on the detection result.

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Mishima, Japan

Toshiaki Sako