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Class Information
Number: 271/114
Name: Sheet feeding or delivering > Feeding > Separators > Rotary > Variably or intermittently driven
Description: Device wherein the sheet-removing means is impelled to be turned by mechanism that imparts changeable turning speeds to the means, or imparts different turning speeds to different sheet-engaging portions of the means, or imparts a discontinuous turning motion to the means.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7581830 |
Image forming apparatus having urging member for urging feeding roller toward recording medium |
Sep. 1, 2009 |
| 7571907 |
Driving apparatus |
Aug. 11, 2009 |
| 7540485 |
Paper feeding apparatus |
Jun. 2, 2009 |
| 7533878 |
Printer media transport for variable length media |
May. 19, 2009 |
| 7513501 |
Paper feeding device for dot printers for example ink jet photographic printers |
Apr. 7, 2009 |
| 7484723 |
Separation roller set of an automatic document feeder (ADF) |
Feb. 3, 2009 |
| 7472903 |
Sheet feeder |
Jan. 6, 2009 |
| 7455286 |
Sheet separation using two torque motors |
Nov. 25, 2008 |
| 7448611 |
Pickup device used with image forming apparatus |
Nov. 11, 2008 |
| 7431284 |
Sheet transfer apparatus |
Oct. 7, 2008 |
| 7431283 |
Card-feeding mechanism |
Oct. 7, 2008 |
| 7422205 |
Original feeding apparatus and image reading apparatus |
Sep. 9, 2008 |
| 7384033 |
Feed roller unit and conveyance apparatus |
Jun. 10, 2008 |
| 7380782 |
Automatic document feeder having a replaceable friction roller assembly |
Jun. 3, 2008 |
| 7370857 |
Paper feeding apparatus |
May. 13, 2008 |
| 7357386 |
Device and method for feeding paper |
Apr. 15, 2008 |
| 7355761 |
Driving apparatus and method for image scanning and/or forming machine |
Apr. 8, 2008 |
| 7320464 |
Original reading device with controller |
Jan. 22, 2008 |
| 7296790 |
Automatic document feeding apparatus |
Nov. 20, 2007 |
| 7270323 |
Sheet feeding device with two cams |
Sep. 18, 2007 |
| 7267333 |
Power transmission device and sheet feeding apparatus equipped therewith |
Sep. 11, 2007 |
| 7249760 |
Paper pickup mechanism |
Jul. 31, 2007 |
| 7229070 |
Rotary clutch device and sheet feeder using the same |
Jun. 12, 2007 |
| 7136202 |
Apparatus for feeding documents in a facsimile |
Nov. 14, 2006 |
| 7131719 |
Inkjet printer |
Nov. 7, 2006 |
| 7128315 |
Discrete paper feeder |
Oct. 31, 2006 |
| 7059596 |
Sheet feeder |
Jun. 13, 2006 |
| 7038819 |
Depth of field adjustment device and method for an automatic document feeder |
May. 2, 2006 |
| 6974127 |
Drive apparatus for ink jet printer |
Dec. 13, 2005 |
| 6945526 |
Method of picking a sheet from a stack |
Sep. 20, 2005 |
| 6899326 |
Sheet feeder and recording apparatus incorporating the same |
May. 31, 2005 |
| 6869003 |
Conveyor unit |
Mar. 22, 2005 |
| 6869070 |
Sheet feeding apparatus and image forming apparatus and image reading apparatus provided with same |
Mar. 22, 2005 |
| 6834850 |
Percussive noises supressing sheet feeding method and apparatus |
Dec. 28, 2004 |
| 6824130 |
Method and apparatus for feeding sheets |
Nov. 30, 2004 |
| 6817793 |
Media handling device and methods |
Nov. 16, 2004 |
| 6805341 |
Sheet feeding device and image forming apparatus |
Oct. 19, 2004 |
| 6791725 |
Image forming apparatus, its controlling method, and storage medium |
Sep. 14, 2004 |
| 6786481 |
Sheet feeding device |
Sep. 7, 2004 |
| 6736389 |
Pick-roller drive disengagement scheme |
May. 18, 2004 |
| 6719284 |
Document feeding apparatus |
Apr. 13, 2004 |
| 6719285 |
Automatic document feeder and scanner systems |
Apr. 13, 2004 |
| 6691998 |
Image forming apparatus with separable medium cassettes and plural resist rollers |
Feb. 17, 2004 |
| 6685183 |
Automatic teller machine |
Feb. 3, 2004 |
| 6679490 |
PIC roller with clutch |
Jan. 20, 2004 |
| 6651972 |
Document feeding apparatus |
Nov. 25, 2003 |
| 6648322 |
Paper feeding device for printer |
Nov. 18, 2003 |
| 6634636 |
Method of picking notes from a stack |
Oct. 21, 2003 |
| 6612562 |
Method and system for feeding media to a printer |
Sep. 2, 2003 |
| 6581924 |
Roller gear over engagement protection for document feeder |
Jun. 24, 2003 |
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