US Patent No: 7,796,936
Number of patents in Portfolio can not be more than 2000
Image forming device with multimode duplexer
Stats
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Sep 14, 2010
Issued date -
Sep 19, 2006
filing date -
11/532,931
serial no -
In Force
status
Importance
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Abstract
An image forming device in a color printer or the like includes duplex printing. Multiple media sheets are moved through a media path which includes a primary path and a duplex path. Various parameters of the image forming device control the interpage gap between sheets. Parameters include peek-a-boo duplexing, sharing of motors within the drive rollers, and sharing of power supplies.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,918,490 Batch mode duplex printing | 43 | 1989 | |
| 5,095,342 Methods for sheet scheduling in an imaging system having an endless duplex paper path loop | 172 | 1990 | |
| 5,159,395 Method of scheduling copy sheets in a dual mode duplex printing system | 153 | 1991 | |
| 5,184,185 Method for duplex printing scheduling system combining finisher interset skipped pitches with duplex sheet scheduling | 31 | 1991 | |
| 5,504,568 Print sequence scheduling system for duplex printing apparatus | 151 | 1995 | |
| 5,729,790 Operation scheduling system for a digital printing apparatus using a tree of possible schedules | 20 | 1997 | |
| 5,812,273 Operation scheduling system for a digital printing apparatus, using a table of executed operations to revise a schedule in real time | 15 | 1997 | |
| 6,097,500 Operation scheduling system for a digital printing apparatus, where new constraints can be added | 14 | 1998 | |
| 5,930,577 Registering images on the front and on the back of a substrate using high resolution sheet measurement | 28 | 1998 | |
| 6,064,840 Method and apparatus for scheduling duplex copy jobs by shifting copy sheet into an available pitch to create a skipped pitch between copy sets | 4 | 1999 | |
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| 4,990,965 Image forming apparatus having duplex unit | 25 | 1989 | |
| 5,095,371 Duplex image forming system with number of single side printed sheets in feed path selected before printing second side | 23 | 1990 | |
| 5,132,719 Method and apparatus for duplex printing wherein the interleave number changes in response to detected sheet length change | 11 | 1991 | |
| 6,411,795 Image forming apparatus with a two-sides image forming operation | 10 | 2001 | |
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| 6,539,198 Image forming apparatus, control method of the image forming apparatus and storage medium | 7 | 2001 | |
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| 4,488,801 Maximum throughput duplexing system for xerographic machines | 14 | 1983 | |
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| 5,703,693 Digital copy machine allowing duplex copying in short time through novel recirculation timing | 19 | 1994 | |
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| 6,069,704 Method of scheduling a sequence of pages to be printed with a duplex printer | 12 | 1997 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Mar 14, 2014 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Mar 14, 2018 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 14, 2022 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |