Inventor
TRUE JASON CARL
US14 patents
⚠️ This page may combine multiple inventors who share the name “TRUE JASON CARL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LEXMARK INT INC
10 patentsUS6718147B1Apr 6, 2004
Toner measurement and darkness control using printer systems
LEXMARK INT INC29 citations91
US6819884B1Nov 16, 2004
Determining toner usage
LEXMARK INT INC26 citations90
US9335656B2May 10, 2016
Toner level sensing using rotatable magnets having varying angular offset
LEXMARK INT INC6 citations73
US9910382B1Mar 6, 2018
Capacitive toner level sensor
LEXMARK INT INC3 citations70
US9395645B2Jul 19, 2016
Capacitive toner level sensor
LEXMARK INT INC2 citations61
US9042746B2May 26, 2015
Methods for providing a page countdown for a replaceable unit of an image forming device
LEXMARK INT INC2 citations61
US9304467B2Apr 5, 2016
Methods for providing a page countdown for a replaceable unit of an image forming device
LEXMARK INT INC0 citations51
US9563162B2Feb 7, 2017
Transferable page countdown for a replaceable unit between image forming devices
LEXMARK INT INC0 citations48
US9335698B2May 10, 2016
Transferable page countdown for a replaceable unit between image forming devices
LEXMARK INT INC0 citations48
US8867933B2Oct 21, 2014
Methods for providing a transferable page countdown for a toner cartridge between image forming devices
LEXMARK INT INC0 citations48