Paper stack height control
US5908189A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1997 |
| Grant date | Jun 1, 1999 |
| Priority date | — |
| Expiry date | Apr 21, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2511/15
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Height barriers (15a, 15b) on the bottom of the feed arm frame (5) are located a distance above the bottom of paper drawer (1) of a printer (13). the drawer is pulled out to load paper, and then pushed in. If the paper stack (25) is high enough to encounter the barriers, paper which encounters the barrier is pushed off the top of the stack as the drawer moves further. The pushed paper emerges in front of the printer and is removed by the operator. Back restraint (17) is integral to the elevated region (17b) followed by an inclined region (17a). Overloading of paper is prevented and the paper stack not uncompressed during subsequent paper feed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.