Job recovery method and system
US4317629A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 4, 1980 |
| Grant date | Mar 2, 1982 |
| Priority date | — |
| Expiry date | Feb 4, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/234
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Job recovery method and system for generating complete sets of copies and providing billing information with respect thereto. Job recovery is automatically effected after a jam occurs with respect to copy sheets by maintaining counts of sheets reaching the exit pocket and retained in the duplex tray for determining therefrom images lost due to the jam and responsive thereto generating replacement copies. Counts are also maintained for determining when copying of each set is complete and for billing purposes with the count for billing purposes reflecting only delivered copies with no additions being made for replacement copies generated due to lost images. For effecting job recovery due to jams occurring during imaging of duplex copies, replacement sheets are generated immediately after each jam to replace those sheets lost due to the jam by determining the number of pages to be printed, dividing this number by two, and subtracting therefrom the count of sheets in the duplex tray and in the exit pocket, with this determination being then used to control generation of first side images on sheets needed for replacement purposes with said sheets being then conveyed to the duplex tray s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.