US 12,221,311 B2
Medium stacking apparatus and postprocessing apparatus
Takeru Oguchi, Chino (JP); and Masaki Miyazawa, Matsumoto (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Jul. 28, 2022, as Appl. No. 17/815,890.
Claims priority of application No. 2021-125468 (JP), filed on Jul. 30, 2021.
Prior Publication US 2023/0036816 A1, Feb. 2, 2023
Int. Cl. B65H 37/04 (2006.01); B65H 29/22 (2006.01); B65H 31/34 (2006.01); B65H 31/36 (2006.01)
CPC B65H 29/22 (2013.01) [B65H 37/04 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A medium stacking apparatus comprising:
a placement section having a placement area in which one or more media that recorded medium are placed;
an alignment section that aligns downstream, leading edges, in a transport direction, of the media that were transported to the placement section;
a transport section that transports, to the alignment section, the media that were transported to the placement section; and
a moving section that moves the media stacked on the placement section in a width direction, the width direction intersecting the transport direction, wherein
the alignment section includes
a first alignment surface having a first friction coefficient for contact with the media, and
a second alignment surface having a second friction coefficient for contact with the media, the second friction coefficient being lower than the first friction coefficient,
the first alignment surface and the second alignment surface are side by side in the width direction, and
the second alignment surface is positioned upstream of the first alignment surface in the transport direction and closer to a center of the placement area in the width direction than the first alignment surface is.