US 9,813,573 B2
Reading device, image forming apparatus, and reading device control method
Takuro Murata, Osaka (JP)
Assigned to KYOCERA Document Solutions Inc., Osaka (JP)
Filed by KYOCERA Document Solutions Inc., Osaka (JP)
Filed on Sep. 16, 2016, as Appl. No. 15/268,196.
Claims priority of application No. 2015-190099 (JP), filed on Sep. 28, 2015.
Prior Publication US 2017/0094088 A1, Mar. 30, 2017
Int. Cl. H04N 1/04 (2006.01); H04N 1/00 (2006.01)
CPC H04N 1/00822 (2013.01) [H04N 1/0071 (2013.01); H04N 1/00572 (2013.01); H04N 1/00588 (2013.01); H04N 1/00602 (2013.01); H04N 1/00612 (2013.01); H04N 1/00649 (2013.01); H04N 1/00689 (2013.01); H04N 2201/0094 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A reading device comprising:
an operation panel for accepting a setting;
a reading unit for reading a document that passes through a reading position; and
a conveyance unit including: a sheet feed roller for feeding out a document set on a document tray; a first conveyance path ranging from the sheet feed roller to the reading position; a detection part provided on the first conveyance path and serving for detecting whether or not the document is present; a pair of reverse-rotation rollers which rotate forward while nipping the document and then stop in a state discharging a part of the document to outside, and thereafter rotate reverse; a second conveyance path ranging from the reading position to the pair of reverse-rotation rollers; a third conveyance path which has one end connected to the first conveyance path and another end connected to the second conveyance path and which allows the switched-back document to pass therethrough and be fed back to upstream side of the reading position; and a conveyance control section for controlling document conveyance, wherein
the pair of reverse-rotation rollers rotate reverse to feed the document onto the third conveyance path,
the operation panel accepts double-sided reading of the document, and application of a cutout document mode for reading a cutout document which has a cutout part at its rear end in a document conveyance direction, the cutout part passing through a detection area of the detection part,
in a case of double-sided reading of the document,
with the cutout document mode unapplied,
the conveyance control section stops the pair of reverse-rotation rollers at a time point when the document has been conveyed by a predetermined reference distance since a rear-end passage time point that is a time point when the detection part having so far been detecting a document presence has detected a document absence, and thereafter the conveyance control section starts reverse rotation of the pair of reverse-rotation rollers,
with the cutout document mode applied,
the conveyance control section stops the pair of reverse-rotation rollers at a time point when the document has been conveyed by a distance resulting from adding an additional distance, which is predetermined or determined based on a recognized cutout width in the document conveyance direction, to the reference distance since the rear-end passage time point, and thereafter the conveyance control section starts reverse rotation of the pair of reverse-rotation rollers.