US 11,884,504 B2
Sheet conveying device capable of preventing paper jam, image reading apparatus, sheet conveying method
Takuro Murata, Osaka (JP)
Assigned to KYOCERA Document Solutions Inc., Osaka (JP)
Filed by KYOCERA Document Solutions Inc., Osaka (JP)
Filed on Dec. 6, 2021, as Appl. No. 17/457,863.
Claims priority of application No. 2020-204904 (JP), filed on Dec. 10, 2020.
Prior Publication US 2022/0185607 A1, Jun. 16, 2022
Int. Cl. B65H 7/18 (2006.01); B65H 7/06 (2006.01); G03G 15/00 (2006.01); B65H 5/06 (2006.01); B65H 3/04 (2006.01); B65H 7/02 (2006.01)
CPC B65H 7/18 (2013.01) [B65H 3/04 (2013.01); B65H 5/062 (2013.01); B65H 7/02 (2013.01); B65H 7/06 (2013.01); G03G 15/70 (2013.01); B65H 2511/11 (2013.01); B65H 2511/13 (2013.01); B65H 2511/414 (2013.01); B65H 2513/512 (2013.01); B65H 2601/11 (2013.01); G03G 2215/00548 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A sheet conveying device comprising:
a first conveyance member configured to come into contact with a sheet conveyed in a conveying direction set in advance to convey the sheet downstream in the conveying direction;
a separation member disposed to face the first conveyance member with a first position therebetween and biased toward the first position, the first conveyance member coming into contact with the sheet at the first position, the separation member being configured to separate a first sheet that is in contact with the first conveyance member from a second sheet that is different from the first sheet, the sheet being one of a plurality of sheets conveyed in the conveying direction, the plurality of sheets including the first and second sheets and being conveyed to the first position;
a second conveyance member configured to come into contact with the sheet at a second position downstream of the first position in the conveying direction to convey the sheet downstream in the conveying direction;
a third conveyance member configured to come into contact with the sheet at a third position downstream of the second position in the conveying direction to convey the sheet downstream in the conveying direction;
a determination processing portion configured to determine whether or not a length of the sheet in the conveying direction is shorter than or equal to a specific distance based on a distance of a section from the first position to the third position on a conveyance route of the sheet; and
a first drive control portion, in a case where the determination processing portion determines that the length is shorter than or equal to the specific distance, configured to stop driving the first conveyance member after a leading edge of the sheet in the conveying direction reaches the second position and before a trailing edge of the sheet in the conveying direction passes through the first position, and in a case where the determination processing portion determines that the length exceeds the specific distance, configured to stop driving the first conveyance member after the leading edge reaches the third position and before the trailing edge passes through the first position.