Title:
SHEET STACKING DEVICE
Document Type and Number:
Japanese Patent JP3907335
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent a distance of a stacking surface of a stack tray and a paper discharging position from becoming shorter than an optimum distance.
SOLUTION: A stack tray 411 is lowered until it is detected by a sensor S10 that an upper surface of a sheet is positioned at specified height in accordance with the sheet being discharged to the stack tray 411, and thereafter, it is made to rise by specified quantity. The stack tray 411 is controlled not to carry out rising motion by stopping lowering motion of the stack tray 411 in accordance with a sensor S12 detecting that the stack tray 411 reaches the lower limit in the middle of lowering of the stack tray 411.
Inventors:
Yoshinori Isobe
Yuzo Matsumoto
Yuzo Matsumoto
Application Number:
JP2167499A
Publication Date:
April 18, 2007
Filing Date:
January 29, 1999
Export Citation:
Assignee:
Canon Inc
International Classes:
B65H29/18; B65H43/06; B65H29/16; B65H31/04; (IPC1-7): B65H29/16; B65H31/04; B65H43/06
Domestic Patent References:
| JP7300270A | ||||
| JP1214565A | ||||
| JP9240909A | ||||
| JP952657A |
Attorney, Agent or Firm:
Keizo Nishiyama
Yuichi Uchio
Yuichi Uchio