Active paper drop for printers
US4794859A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 1987 |
| Grant date | Jan 3, 1989 |
| Priority date | — |
| Expiry date | Oct 23, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J13/106
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An active paper drop mechanism (20) for ink-jet printers is provided. The mechanism comprises a pair of opposed, movable rail members (22) associated with opposed walls (14) of a horizontal-disposed output collection tray (12) for receiving sheets (10) of printed media. In particular, each rail member is provided with return spring (26) that act to maintain the rails in a closed position. In that position, the rails support a sheet of the print medium during the printing operation, thus giving the ink on the previously printed-on sheet (10') time to dry. The rails are provided with a wing member (32) and are pivotally secured (38) in the floor of the output tray, with the pivot point spaced inwardly from the wing member. Downward pressure against the wing member thus causes the rail to rotate outward from its closed position, into a recess (24) provided in the side of the output tray. This provides sufficient clearance for the sheet to drop into the output stack. Upon release of the downward pressure, the spring causes the rail member to return to its original closed position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.