Konica Minolta Business Technologies, Inc.

Minolta Company, Ltd.

Kou Yamada

Atsushi Kawai

Yuta Tachibana

Kazuo Okunishi

Yoshiyuki Toso

Tatsutoshi Yamada

Hideo Mae

Tetsuya Kagawa

Shigeru Tashiro

Yoshihiko Yoshizaki

Teruhiko Fujikura

Syuichi Katogi

Nozomu Kondo

Shinji Matsumoto

Tooru Watanabe

Yuuji Takarabe

An image forming system having an image forming apparatus and a post-processing apparatus having a sorting function, a stapling function, etc. The post-processing apparatus is movable between a first position to receive long papers and a second position to receive non-long papers. When the post-processing apparatus is set in the second position, a paper inlet port of the post-processing apparatus faces a paper ejection port of the image forming apparatus.

Image forming system

It is intended to provide an image forming apparatus capable of securing rotation transmission accuracy among input/output axes without giving stress to a holding portion despite shaft misalignment and without using material of high strength. A color printercomprises a main bodyand an image forming unitremovable from the main body. The main bodyincludes a gearfor receiving rotary driving force to the image forming unitand a jointand the image forming unithas a couplingfor receiving rotary driving force from the main body. Furthermore, a joint holder sectionfor the gearand the couplinghas a contact hole, and contact hole, respectively and both ends of the jointare inserted in those holes. The contact holesandare in not-twisted triangle pole shape and the jointis in twisted triangle pole shape.

Image forming apparatus with a removable process unit capable of securing rotation transmission accuracy without stressing a holding portion despite shaft misalignment

A controller of a color copier according to the invention includes a drive controller section, a pattern generation section, and a velocity information acquisition section. The drive controller section changes the phase relationship in rotation angle between a drive roller driving the transfer belt and individual photosensitive drums of a plurality of imaging sections. The pattern generation section forms registered marks on the transfer belt by using the plurality of imaging sections before and after the drive controller section changes the phase relationship. The velocity information acquisition section acquires at least one of a velocity fluctuation component of individual photosensitive drums and a velocity fluctuation component of the transfer belt in accordance with the result of sensing by a mark sensor for two registered marks formed by the pattern generation section.

Imaging apparatus and imaging method therefore

An image forming apparatus comprises a main body and a sheet post-processing unit. The main body has a first discharge path, a second discharge path, a first mounting portion and a second mounting portion. The sheet post-processing unit has a first sheet receiving path and a second sheet receiving path each connecting to a common sheet transport path, a first mounting portion and a second mounting portion. The first discharge path is connected to the first sheet receiving path by coupling the first mounting portion of the main body to the first mounting portion of the sheet post-processing unit. The second discharge path is connected to the second sheet receiving path by coupling the second mounting portion of the main body to the second mounting portion of the sheet post-processing unit. By providing the plurality of mounting portions in the top and side portions of the main body, the sheet post-processing unit can easily be disposed on the top or side of the main body.

Image forming apparatus having sheet post-processing unit

Growing community of inventors

Toyohashi, Japan

Kou Yamada