Copyer Co., Ltd.

Canon Finetech Inc.

Kensuke Izuma

Iwao Kawamura

Naoki Kiyohara

Kiyokazu Namekata

Kazuhiro Murakami

Ryoma Suzuki

Kazuhiro Nishimura

Tatsuo Fujimura

Satoru Sasame

Yuichi Takahashi

Mitsuharu Takizawa

Yoshiharu Yamashita

Yuuichi Sugiyama

Junichi Nakamura

Hisaya Sorita

Ryouma Suzuki

Keiko Nazuka

Takashi Nakamura

Kazuhiro Nisimura

An image forming apparatus, including: a recording unit configured to form an image on a recording medium conveying in a conveying direction; a main body portion configured to support the recording unit in an openable and closable manner; a conveying unit configured to convey, in the conveying direction, the recording medium on which an image is to be formed by the recording unit, the conveying unit being disposed below the recording unit; a holder configured to contain the recording medium on which an image is to be formed by the recording unit, the holder being disposed upstream of the conveying unit in the conveying direction; and a raising and lowering mechanism configured to raise and lower the holder between a first position for feeding the recording medium to the recording unit and a second position placed above the first position.

Image forming apparatus

A first lever is linked to coupling unit to couple and decouple a pair of rollers which pinch and deliver a recording sheet in a delivery direction toward an image-forming zone for image formation. This first lever is placed near an inlet port

Image forming device

A recording medium cutter capable of moving between two positions, a cutting position and a non-cutting position, in a short time, and also capable of cutting a recording medium at accurate positions. A main body ( ) rotatably holding a rotary blade ( ) and a driven blade ( ) is located between side plates ( and ) of the cutter ( ). A main shaft ( ) serving as the center shaft of the rotary blade ( ) is rotatably secured to the side plates ( and ). The main shaft ( ) also serves as the rotating shaft of the main body ( ). A driving motor is secured to the mounting plate ( ) of the side plate ( ). When the main shaft ( ) is rotated by the driving motor ( ), the rotary blade ( ) rotates. Because the driven blade ( ) is pressed against the side face of the rotary blade ( ), as the rotary blade ( ) rotates, the driven blade ( ) revolves around the main shaft ( ). As a result, the main body ( ) also rotates around the main shaft ( ). When the main body ( ) is moved from the non-cutting position to the cutting position, the rotation of the main body ( ) is stopped the moment that a stopper ( ) of the main body ( ) comes into contact with a stopping plate ( ), whereas the rotary blade ( ) continues to rotate. When the main body ( ) is moved from the cutting position to the non-cutting position, the rotation of the main body ( ) is stopped the moment that a lever ( ), engaged with the main body during rotation, comes into contact with a hole's extreme end ( ) of the side plate ( ). At this time, a sensor bar ( ) of the lever ( ) turns a sensor ( ) off, causing the driving motor ( ) to be turned off.

Recording medium cutter image forming device using same

An image forming apparatus having a print member for forming an image on a recording sheet while reciprocating in a predetermined direction includes a pair of conveyance rollers and a separating member for separating the of conveyance rollers from one another. A control lever for controlling the separating member is provided as is a changeover element for permitting the control lever to rotate when said print member moves in a predetermined direction and is not located at an interference area in which the print member would collide with the conveyance rollers if they were separated, and for prohibiting the control lever from rotating when the print member is located at the interference area.

When a carriage,is positioned in an end portion in the direction indicated by arrow B in a scanning area thereof, an attachment,is in contact with a main frame side wall,of a plotter,and turns in the direction indicated by arrow D against the enabling force in the direction indicated by arrow C of a helical torsion coil spring,so that an image position detector,is stored in a storage unit,of the carriage

Scanning type image formation apparatus

The relative positions of cutter blade,, platen,, pressing member,, and bending guide,are adjusted to obtain the acute angle &THgr; between side face,of cutter blade,facing to the delivery direction and recording medium,in the range from 25&deg; to 65&deg;.

Apparatus for cutting-recording medium

A cam,is rotated in an arrow F direction. This causes sheet conveyance rollers,and guide elements,to rotate on a lower conveyance shaft,and an upper conveyance shaft,, respectively, so that they are separated from a drive roller,. Thus, a spur plate,faces the upward stream end with respect to the recording sheet conveyance direction and opens in synchronism with the sheet conveyance rollers,and,, etc. Accordingly, it is possible to readily remove a recording sheet subjected to the jam.

An extension guide unit,is provided on a side portion of a recording medium conveying passage. An extension guide,is held in a wound state in an extension guide holder,of the extension guide unit,In order to convey a recording medium, the extension guide,is drawn out, by which the recording medium is guided. This enables the recording medium to be smoothly conveyed.

Growing community of inventors

Tokyo, Japan

Kensuke Izuma