Sheet conveying device, image forming apparatus and method for conveying sheet
AssigneeToshiba Tec Kabushiki Kaisha
InventorYoshiharu Taniyama
Life of this patent
Estimating the term…
Abstract
The sheet paper conveying device comprises: paper supply rollers at least part of which rotate to convey the sheet paper in a prescribed direction; separation rollers that rotate in the direction reverse to the sheet paper conveying direction or rotates jointly with the paper supply roller; auxiliary rollers that clamp the sheet paper jointly with the paper supply rollers and freely rotate; a first pressurizing member to press the separation rollers against the paper supply roller side; and a second pressurizing member to press the auxiliary roller against the paper supply roller side.
Claims15
A sheet paper conveying device comprising:
- a paper supply roller at least part of which is in contact with sheet paper and rotate to convey the sheet paper in a prescribed direction;
- a separation rollers which clamps the sheet paper jointly with the paper supply roller, is driven to rotate in the direction reverse to the sheet paper conveying direction or rotate following the rotation of the paper supply roller;
- an auxiliary roller to clamp the sheet paper jointly with the paper supply roller and rotate freely;
- a first pressing member to press the separation roller to the paper supply roller side;
- and
- a second pressing member to press the auxiliary roller to the paper supply roller side.
An image forming apparatus comprising:
- a sheet paper support member to support sheet paper provided in a main body;
- a paper supply roller at least a part of which contacts the sheet paper taken out from the sheet paper support member and convey in a prescribed direction;
- a separation roller to clamp the sheet paper jointly with the paper supply roller and is driven to rotate in the direction reverse to the sheet paper conveying direction or rotate following the paper supply roller;
- an auxiliary roller that clamp the sheet paper jointly with the paper supply roller and rotates freely;
- a first pressurizing member to pressurize the separation roller to the paper supply roller side;
- a second pressurizing member to pressurize the auxiliary roller to the paper supply side;
- and
- an image forming means that is provided in the main body to form a image on the sheet paper conveyed in the prescribed direction by the paper supply roller.
A sheet paper conveying method to convey sheet paper by clamping the sheet paper with the paper supply roller that rotates to convey sheet paper in a prescribed direction and the separation roller that rotates in the direction reverse to the sheet paper conveying direction, wherein
- a sheet paper conveying method to clamp the sheet paper by clamping with the auxiliary roller that rotates freely and the paper supply roller and pressurize the separation roller and the auxiliary roller against the paper supply roller.
Dependencies are inferred from the claim text.