US 6,981,697 B2
Sheet processing apparatus having different discharge control for stapling operation
Kazunori Sasa, Ibaraki (Japan); and Yoshinori Isobe, Ibaraki (Japan)
Assigned to Canon Kabushiki Kaisha, (Japan); and Canon Finetech Inc., (Japan)
Filed on Aug. 20, 2003, as Appl. No. 10/644,596.
Claims priority of application No. 2002-241836 (JP), filed on Aug. 22, 2002.
Prior Publication US 2004/0207142 A1, Oct. 21, 2004
Int. Cl. B65H 37/04 (2006.01)
U.S. Cl. 270—58.11 4 Claims
OG exemplary drawing
 
1. A sheet processing apparatus comprising:
a stapling device that staples a sheet bundle comprising a plurality of sheets;
a discharge device that discharges the sheet bundle;
a driving device that drives said discharge device; and
a controller that controls said driving device,
wherein said controller controls discharge of the sheet bundle in different ways between a case where said stapling device staples the sheet bundle at one point thereof and a case where said stapling device staples the sheet bundle at two points thereof,
wherein said controller is operable when the sheet bundle stapled at one point thereof is to be discharged, for causing said discharge device to accelerate the sheet bundle at a first predetermined acceleration and then causing said discharge device to discharge the sheet bundle at a first predetermined speed, and
wherein said controller is operable when the sheet bundle stapled at two points thereof is to be discharged, for causing said discharge device to accelerate the sheet bundle at a second predetermined acceleration greater than the first predetermined acceleration, and then causing said discharge device to discharge the sheet bundle at the first predetermined speed.