Inventor
BUCHANAN JOHN ANDREW
US24 patents
⚠️ This page may combine multiple inventors who share the name “BUCHANAN JOHN ANDREW”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LEXMARK INT INC
21 patentsUS6459876B1Oct 1, 2002
Toner cartridge
LEXMARK INT INC57 citations95
USD759154SJun 14, 2016
Laser printer toner cartridge
LEXMARK INT INC26 citations94
USD759157SJun 14, 2016
Laser printer toner cartridge
LEXMARK INT INC17 citations92
USD759155SJun 14, 2016
Laser printer toner cartridge
LEXMARK INT INC17 citations92
USD759156SJun 14, 2016
Laser printer toner cartridge
LEXMARK INT INC19 citations92
US8873996B1Oct 28, 2014
Toner system for an image forming device including a toner cartridge having a shutter with bypassing actuation
LEXMARK INT INC12 citations92
US6871031B2Mar 22, 2005
Coupling mechanism for a two piece printer cartridge
LEXMARK INT INC21 citations92
US6496662B1Dec 17, 2002
Optical toner low sensor
LEXMARK INT INC43 citations92
US6487383B2Nov 26, 2002
Dynamic end-seal for toner development unit
LEXMARK INT INC47 citations92
US6078771AJun 20, 2000
Low friction doctor blade
LEXMARK INT INC23 citations92
US9031451B2May 12, 2015
Toner cartridge having a shutter lock mechanism
LEXMARK INT INC22 citations91
US9164425B2Oct 20, 2015
Toner cartridge having loading and latching features
LEXMARK INT INC11 citations84
US9152083B2Oct 6, 2015
Carriage assembly for toner cartridge loading and latching
LEXMARK INT INC7 citations84
US9104141B2Aug 11, 2015
Toner cartridge having a shutter with bypassing actuation
LEXMARK INT INC10 citations84
US8879964B1Nov 4, 2014
Toner cartridge having an angled exit port surface
LEXMARK INT INC7 citations84
USRE47166EDec 18, 2018
Toner cartridge having loading and latching features
LEXMARK INT INC2 citations73
US9983508B2May 29, 2018
Image forming device having a replaceable toner cartridge that includes an engagement member for actuating a shutter
LEXMARK INT INC1 citations63
US7233760B2Jun 19, 2007
Method and device for doctor blade retention
LEXMARK INT INC2 citations63
US9798268B2Oct 24, 2017
Toner cartridge having a movable engagement member that protrudes from a front of the toner cartridge for acutating a shutter
LEXMARK INT INC0 citations52
US9436128B2Sep 6, 2016
Toner cartridge having an engagement member for actuating a shutter
LEXMARK INT INC0 citations52
US8774684B2Jul 8, 2014
Toner cartridge having a pivoting exit port cover
LEXMARK INT INC0 citations51
BUCHANAN JOHN ANDREW
3 patentsUS8649710B2Feb 11, 2014
Toner cartridge having a pivoting exit port cover
BUCHANAN JOHN ANDREW14 citations88
US8977160B2Mar 10, 2015
Overmolded shutter for use in toner containing supply items of an imaging apparatus
BUCHANAN JOHN ANDREW1 citations51
US8867968B2Oct 21, 2014
Movable toner port cover member for a replaceable unit of an imaging device
BUCHANAN JOHN ANDREW1 citations48