Ink jet validation printer
US6435679B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 14, 2001 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Jun 14, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J11/42
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet printer having a drive roller assembly for conducting forms into and out of a printing station that is located beneath the drive roller assembly. A pair of sensor units are mounted above the axis of the drive roller for detecting the alignment and registrations of the leading edge of a form as it enters the nip between the drive roller and a biasing plate prior to initiating a validation sequence. A sensor unit is mounted below the axis of the drive roller for detecting the leading edge of a form as it starts to move out of the nip. The validation sequence is terminated when the trailing edge of the form is detected by the two upper sensors. The printer is arranged to process forms in a lengthwise orientation or a widthwise orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.