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Class Information
Number: 399/317
Name: Electrophotography > Image formation > Transfer > Electrostatic > Having copy medium guide > Retractable
Description: Subject matter wherein an arrangement is provided for a transferring member to move a copy medium away from an image-bearing member.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8712299 Image forming apparatus having a primary transfer unit, a secondary transfer unit, and a direct transfer unit Apr. 29, 2014
8538306 Web feed system having compensation roll Sep. 17, 2013
8515311 Image forming apparatus featuring a rotatable belt member adjustment roller Aug. 20, 2013
8463149 Image forming apparatus Jun. 11, 2013
8457517 Image forming apparatus and transfer roller bias system Jun. 4, 2013
8417164 Transfer device and image forming apparatus using same Apr. 9, 2013
8374526 Transfer unit and image forming apparatus having the same Feb. 12, 2013
8340541 Method for automatically correcting transfer pressure non-uniformity using the cross process uniformity Dec. 25, 2012
8326162 Belt tracking using two edge sensors Dec. 4, 2012
8311464 Image forming apparatus, image forming method, and computer program product Nov. 13, 2012
8165484 Image forming apparatus with control of transfer voltage Apr. 24, 2012
8135318 Image forming apparatus, image forming method, and secondary transfer unit Mar. 13, 2012
8103188 Image forming apparatus Jan. 24, 2012
8095057 Transferring unit and image forming apparatus Jan. 10, 2012
8055170 Image forming apparatus with clearance retaining portion Nov. 8, 2011
7869751 Transfer device and image forming apparatus Jan. 11, 2011
7801455 Architecture for a multi toner printing system Sep. 21, 2010
7725063 Image-forming device with interlockingly movable two paper guide members May. 25, 2010
7542709 Image-forming device for suppressing recording sheet from flapping when transferring toner images thereon Jun. 2, 2009
7539446 Process cartridge and image forming apparatus with flexible guide members May. 26, 2009
7539447 Image-forming device for absorbing vibration of guide plate May. 26, 2009
7539448 Image-forming device for suppressing vibration of guide plate and jams of recording sheet May. 26, 2009
7424258 Transfer device and image forming device that include a transfer assisting blade having a slant portion for abutting a recording medium Sep. 9, 2008
7424257 Paper guide device and image forming apparatus having the same Sep. 9, 2008
7383006 Image forming apparatus Jun. 3, 2008
7369800 Device for preventing contact between transfer body and transfer medium tail edge portion in image forming apparatus May. 6, 2008
7298989 Image forming apparatus and cartridge with holding device Nov. 20, 2007
7085517 Image forming apparatus and image forming unit detachably mountable thereto Aug. 1, 2006
6862421 Transferring apparatus of color laser printer Mar. 1, 2005
6845224 Method and apparatus for timing adjustment for transfer assist blade activations Jan. 18, 2005
6810231 Sheet transfer apparatus and image reading apparatus Oct. 26, 2004
6766138 Variable length transfer assist blade Jul. 20, 2004
6628911 Image forming apparatus Sep. 30, 2003
6330403 Image forming apparatus with adjusting device Dec. 11, 2001
6330418 Segmented transfer blade using a rotating decision stop Dec. 11, 2001
6314265 Transfer printing station for an electrographic device with a contact pressure element in the transfer printing area Nov. 6, 2001
6201944 Tandem-type image forming apparatus operating in color mode and monochrome mode Mar. 13, 2001
6061542 Image forming apparatus which modifies image forming condition depending on the number of photosensitive drums used for a particular image formation May. 9, 2000
5923921 Variable transfer assist blade force Jul. 13, 1999
5893017 Image forming apparatus Apr. 6, 1999
5761596 Paper path inlet baffle Jun. 2, 1998
5758247 Charge removing device for electrophotographic printer May. 26, 1998
5732315 Paper delivery and stacker unit in an image forming apparatus Mar. 24, 1998
5331372 Process cartridge and image forming apparatus on which process cartridge is mountable Jul. 19, 1994
5317371 Skew prevention structure for electrophotographic printer May. 31, 1994
5305068 Continuous paper feed prevention lock mechanism for printer Apr. 19, 1994
5220396 Sheet separating mechanism Jun. 15, 1993
5166736 Electrophotographic printing apparatus with pivotable paper buffer and pivotable guide member Nov. 24, 1992
5155539 Sheet separating mechanism Oct. 13, 1992
5113228 Sheet separating mechanism May. 12, 1992

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