Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method and apparatus for compensating for a darkness shift during the life of an electrophotographic printer cartridge

Method and apparatus for compensating for a darkness shift during the life of an electrophotographic printer cartridge

US Patent 6175375 · Granted Jan 16, 2001

Estimated economic value: $63,748,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Replaceable unit for an image forming device having a retractable encoded member2023
Image forming device having a replaceable unit including a retractable encoded m2023
Reducing waste toner with electrophotographic voltage control in imaging devices2020
Reducing imaging device churn by managing unproductive photoconductive drum revo2020
Compensation for deficient charge roll in an imaging device2020
Compensation for deficient charge roll in an imaging device2019
Maintaining consistent darkness levels produced by a photoconductive drum during2019
System and methods for adjusting toner density in an imaging device2019
System and methods for adjusting toner density in an imaging device2019
Maintaining consistent darkness levels produced by a photoconductive drum during2019
Self-aligning low profile spring-biased media feed roll assembly for an imaging 2016
Methods and apparatus for automatic recovery within an imaging device2015