Paper transport system for an ink jet printer
US4237466A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 7, 1979 |
| Grant date | Dec 2, 1980 |
| Priority date | — |
| Expiry date | May 7, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H29/56
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An ink jet printer includes a rotatable support for supporting a sheet of paper. The support defines an interior vacuum chamber and a plurality of vacuum openings in the surface thereof which communicate with the vacuum chamber. A rotary drive rotates the support and a vacuum source is provided for partially evacuating the vacuum chamber. A paper supply adjacent the rotatable support, loads a sheet of paper onto the rotatable support. An ink jet print head is mounted adjacent the rotatable support for printing on a sheet of paper supported thereon. A sheet diverter is positioned adjacent the rotatable support between the ink jet print head and the paper supply for stripping sheets of paper from the rotatable support when the sheets are not firmly supported thereon. A paper sensor is mounted adjacent the rotatable support, intermediate the sheet diverter and the ink jet print head, for inhibiting operation of the ink jet print head when a sheet of paper is diverted by the paper diverter. The rotatable support comprises a cylindrical paper supporting drum which defines the vacuum openings, which openings are positioned about the periphery of the drum. A leading edge engaging area on …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.