Ricoh Company, Ltd.

Hideyo Watanabe

Masanori Kawasumi

Yuji Arai

Hiroshi Ono

Masami Tomita

Toshio Koike

Takeshi Shintani

Satoshi Takano

Satoshi Hatori

Ken Amemiya

Kaoru Yoshino

Yosuke Saito

Hidehiko Fujiwara

Takaaki Tawada

Akira Fujimori

Haruji Mizuishi

Hirokatsu Suzuki

Hiroshi Mizusawa

Takuzi Yoneda

Tokuya Ojimi

Takeshi Tabuchi

Hiroyuki Idenawa

Satoru Ishikake

Hiroki Atari

Kimie Toda

An image forming apparatus that has a monochrome mode and a full color mode as image forming modes, includes: a power supply unit configured to supply power thereto; a main power switch configured to turn on and off the power supply unit; a mode switching unit configured to selectively and manually be switched between the monochrome mode and the full color mode, wherein the main power switch and the mode switching unit are integrally formed as one mode switch; a power supply interrupting unit configured to interrupt power supply to a part that is necessary to form an image in a mode other than the monochrome mode, when the mode switch is set to the monochrome mode.

Image forming apparatus

A cleaning device, a process cartridge, an image forming apparatus, and toner to maintain improved cleaning performance for a long time. The cleaning device includes a cleaning blade, a lubricant applying part, and a toner removing part. The cleaning blade is disposed in contact with a surface of an image bearing member. The lubricant applying part coats a solid lubricant on the surface of the image bearing member, and is disposed in an upstream side from the cleaning blade with respect to a rotational direction of the image bearing member. The toner removing part removes toner particles, and is disposed in an upstream side from the lubricant applying part with respect to the rotational direction of the image bearing member.

Cleaning device, process cartridge, image forming apparatus and toner

An automatic cut-sheet feeding apparatus includes a feed roller which rotates in a direction so as to feed in and feed out an upper most cut-sheet, and means for stopping the feeding of excessive cut-sheets which should not be fed out together with the uppermost cut-sheet when a plurality of cut-sheets are fed in together by the feed roller, and thereby automatically feeding cut only the uppermost cut-sheet of the stack of cut-sheet one by one, the stopping means includes a holder pressed against said feed roller, a push-piece supported on the holder and pressed at a position preceding a position where the holder makes contact with said feed roller along a direction in which the cut-sheet is transported thus causing excessive cut-sheets to curve downwards when a plurality of cut-sheets pass between the feed roller and the push-piece, and a stop surface disposed to confront a leading edge of the curved excessive cut-sheet and engage the leading edge thereof.

Automatic cut-sheet feeding apparatus

Growing community of inventors

Kanagawa, Japan

Hideyo Watanabe