Title:
TRANSPORT MONITORING CONTROL APPARATUS AND IMAGE FORMING APPARATUS
Document Type and Number:
Japanese Patent JP2018024515
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To detect a skew during transportation of a recording medium regardless of the thickness of the recording medium without adding a new detection function.SOLUTION: A comparator 226 calculates a half-value width W on the basis of a sheet entry current, where comparison targets are the sheet entry current and a threshold value. The half-value width W is a width (time) of a time axis corresponding to 1/2 of a peak value H. The threshold value is a preset half-value width Ws in a case where no skew occurs. Accordingly, the comparator 226 compares the calculated value W to the threshold value Ws. The comparison result by the comparator 226 is sent out to a skew determining unit 228. The skew determining unit 228 determines at least whether a skew is present on the basis of a difference between the calculated value W and the threshold value Ws, and determines, as necessary, a skew amount (skew angle) when a skew is present.SELECTED DRAWING: Figure 6
Inventors:
MORIYA HIDEKI
YAMAGUCHI HIDEHIKO
TAGAWA KOZO
HARUHARA TAKESHI
YAMAGUCHI HIDEHIKO
TAGAWA KOZO
HARUHARA TAKESHI
Application Number:
JP2016157984A
Publication Date:
February 15, 2018
Filing Date:
August 10, 2016
Export Citation:
Assignee:
FUJI XEROX CO LTD
International Classes:
B65H7/08; B65H5/06; B65H9/00; G03G15/00
Domestic Patent References:
| JPH06183605A | 1994-07-05 | |||
| JP5900686B1 | 2016-04-06 | |||
| JP2016034860A | 2016-03-17 |
Attorney, Agent or Firm:
Patent Service Corporation Taiyo International Patent Office
Previous Patent: Conveyance monitor and control, an image forming device
Next Patent: A connection detection apparatus and connection unit devices
Next Patent: A connection detection apparatus and connection unit devices