Sharp Kabushiki Kaisha Corporation

Shunichi Hayashiyama

Masaharu Kimura

Atsushi Ueda

Norihiro Ochi

Hajime Horinaka

Hirotoshi Iemura

Takashi Kubo

Mitsuru Ogura

Yasunobu Ohkawa

Shigeru Yoshida

Takashi Makiura

Koichi Moriyama

Tetsuya Yamaguchi

Tatsuya Ogawa

A cleaning device is provided with a cleaning unit () disposed downstream from a position at which a toner image is transferred to a paper. The cleaning unit () is provided with a cleaning blade () for scraping off residual toner attached to an image bearing member and a toner catching sheet () for preventing the residual toner or paper dust which have been scraped off from falling outside the cleaning unit. The free length in the toner catching sheet () between affixed positions of a first end portion which is affixed to the cleaning unit () and a second end portion which abuts an outer circumferential portion of the image bearing member is determined by an amount of paper dust buildup on the outer circumferential portion of the image bearing member.

Cleaning device for an image forming apparatus

The serial printer includes a carriage reciprocating in a main scanning direction, a reading sensor mounted in carriage, a timing fence arranged in the main scanning direction, a mechanism preventing movement of carriage in the main scanning direction, and a controlling portion detecting a set condition for image formation in accordance with read data of timing fence from reading sensor for controlling image formation. The controlling portion detects the set condition for image formation in accordance with the read data obtained from the timing fence, so that detection of the set condition for image formation is enabled without increasing the size of an apparatus and cost, or without decreasing a processing efficiency in image formation.

Serial printer detecting set condition for image formation and method of controlling the same

A media discharging device for an ink-jet printer includes a rubber roller and star roller. A pair of paper guides are arranged on both sides, with respect to its rotary shaft of, the star roller, opposing each other and close to the star roller. Each paper guide has a slant which is inclined gradually upward in the paper discharge direction. This slant is positioned offset with respect to the path of movement of the projections on the star roller towards the paper discharge side, so as to prevent the rear edge of the recording paper from dropping into the recessed portions of the star roller.

Recording media discharging device and ink-jet printer with the discharging device

A serial printer includes a carriage reciprocating in a main scanning direction, a reading sensor mounted in carriage, a timing fence arranged in the main scanning direction, a mechanism preventing movement of carriage in the main scanning direction, and a controlling portion detecting a set condition for image formation in accordance with read data of timing fence from reading sensor for controlling image formation. Controlling portion detects the set condition for image formation only in accordance with the read data of timing fence, so that detection of the set condition for image formation is enabled without increasing the size of an apparatus and cost, or without decreasing a processing efficiency in image formation.

A sheet with an image formed thereon by an ink jet mechanism is held over the second sheet output tray. Then the sheet being held on the second sheet output tray is pushed out in the direction of discharge of the sheet by means of a rotating sheet discharge arm so that the sheet drops onto the first sheet output tray.

Growing community of inventors

Nara, Japan

Shunichi Hayashiyama