Segmented scuffer disk(s) for improved registration of print media sheets

摘要

Disclosed are systems and methods that allow for concurrent leading edge registration and side edge registration of print media sheet(s). Specifically, segmented scuffer disk(s) are mounted to an axle above a tray. The disk(s) can each comprise multiple segments and, as the axle rotates, these segments can engage a print media sheet in the tray (e.g., the top print media sheet on a stack in the tray) and can continuously force that print media sheet in a first direction against a leading edge registration guide. The segments can also be independently flexible in a second direction perpendicular to the first direction. This independent flexibility allows tamper(s) to perform a tamping process in the second direction at the same time as the print media sheet is forced in the first direction, thereby avoiding any slippage of the print media sheet away from the leading edge registration guide.

主权项

1. A sheet registration system comprising:
a tray receiving a print media sheet; a leading edge registration guide at one end of said tray; an axle rotating above said tray adjacent to said end and parallel to said leading edge registration guide; at least one segmented scuffer disk mounted to said axle,
each scuffer disk comprising multiple segments extending radially from said axle and perpendicular to said leading edge registration guide, andsaid multiple segments engaging said print media sheet, as said axle rotates, so as to continuously force said print media sheet in a first direction towards said leading edge registration guide; and, a tamper positioned laterally adjacent to a side of said tray, said tamper tamping said print media sheet in a second direction perpendicular to said first direction, said multiple segments each being independently flexible in said second direction so as to allow for movement of said print media sheet in said second direction during said tamping as said print media sheet is concurrently forced in said first direction.