Method and apparatus for duplex printing wherein the interleave number changes in response to detected sheet length change
US5132719A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1991 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Jan 30, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/234
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for forming a duplex print, in which a recording sheet has images formed on both sides thereof, includes steps of: setting an interleave number depending on a size of the recording sheet; forming the duplex prints under a condition where the number of the recording sheets located in a transport path is equal to or less than the interleave number; determining whether or not a size of the recording sheet supplied from a paper supplying unit is changed; changing the interleave number to a minimum interleave number when the size of the recording sheet is changed; forming the duplex prints with respect to the new sized recording sheet under a condition where the number of the recording sheet located in the transport path is equal to or less than the minimum interleave number. The present invention also provides an apparatus for forming a duplex print, which operates in accordance with the method for forming a duplex print.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.