High speed inverter and registration servo
US6311972A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 19, 2000 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Jan 19, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00721
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A feed out controller controls the feed out of a receiving substrate from an inverting station. Sensors mounted in the transfer station assist the feed out controller in determining the required adjustments to feed out. In a duplex copy mode, first and second receiving substrates are transported along a transport path. Feeding out the receiving substrate from the inverter station is adjusted based on a determined relationship between the trailing edge of the first receiving substrate and the leading edge of the second receiving substrate at the registration station and the inverting station. The stop time of the inverting roller is adjusted based the determined relationship. The feed out controller determines the trailing edge/leading edge relationships and then monitors the relationships during the print run. As the trailing edge/leading edge relationships change from nominal values, the feed out controller determines and applies the necessary adjustments to the inverting roller stop time to keep the developed images and the receiving substrates registered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.