Title:
用紙サイズ判定装置、および画像形成装置
Document Type and Number:
Japanese Patent JP7091746
Kind Code:
B2
Abstract:
To improve detection precision even for sheet sizes having similar widths.SOLUTION: A sheet size determination device comprises: a measurement result storage part 212 which stores values corresponding to a main scanning-directional length and a sub scanning-directional length having been measured and a sheet size having been input according to determination results of a first sheet size determination part 204 and a second sheet size determination part 206 and when an output of a side fence movement determination part 203 meets a predetermined condition; and a sheet size threshold update part 215 which updates values stored in a sheet size threshold storage part 211 according to the main scanning-directional length and sub scanning-directional length having been stored so as to decrease the difference between an upper limit and a lower limit of thresholds for lengths of sheet sizes.SELECTED DRAWING: Figure 4
Inventors:
Yuji Ikeda
Hayato Fujita
Keita Maejima
Masaki Tsugawa
Takumi Miyagawa
Daisuke Hirano
Hayato Fujita
Keita Maejima
Masaki Tsugawa
Takumi Miyagawa
Daisuke Hirano
Application Number:
JP2018051447A
Publication Date:
June 28, 2022
Filing Date:
March 19, 2018
Export Citation:
Assignee:
株式会社リコー
International Classes:
B65H1/00; B65H1/04; B65H7/14; G03G21/00
Domestic Patent References:
| JP2008137790A | ||||
| JP2004352440A | ||||
| JP2016210559A | ||||
| JP2016141511A | ||||
| JP1009925U | ||||
| JP5105267A | ||||
| JP2007197146A | ||||
| JP2010058899A | ||||
| JP2008221543A |
Attorney, Agent or Firm:
Hiroaki Sakai