Image transfer system having pre nip wrap
US9075380B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 2011 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Apr 11, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/754
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image transfer system includes an endless image bearing belt for carrying an image to be transferred to a web material; a first roll around which the image bearing belt travels; a second roll around which the image bearing belt travels; a biased transfer roll for supporting the web material such that the web material contacts the image bearing belt at a nip located at a nip location between the biased transfer roll and the first roll, and such that the image is transferred from the image bearing belt to the web material; and a pre nip roll for supporting the web material upstream of the nip. The image bearing belt wraps concavely around the first roll, and the first roll and the biased transfer roll are positioned relative to each other such that the web material wraps around a portion of the image bearing belt and the first roll prior to the web material entering the nip and prior to the image being subjected to an electric field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.