Printers with simplex and duplex cut sheet fusing
US4928147A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1989 |
| Grant date | May 22, 1990 |
| Priority date | — |
| Expiry date | Feb 27, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/2083
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Image defining toner is transferred to cut sheets and fused at one of two fuser stations. One station is positioned to fuse the image on one side when duplex copying or printing is selected. The other fuser station performs fusing when simplex copying is selected but fuses the second side copy for duplexing. When flash lamps are employed for the fuser station, the lamps are composed of multiple bays with a single power source coupled to each bay in sequence so that the power source size need only accommodate the power level demand of one bay. The time between trigger pulses is extended by commencing fusing with an intermediate bay followed by the initial bay and then the final bay as the image area requiring fusing passes along its path in proximity to the faces of the flash lamp bays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.