Method of using an infra-red densitometer to insure two-pass cleaning
US5236795A · kind A · utility
2Cited by
35References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 1991 |
| Grant date | Aug 17, 1993 |
| Priority date | — |
| Expiry date | Sep 5, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2221/001
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Infra-Red Densitometer (IRD) readings are utilized to check the efficiency of two-pass cleaning of the black toner patch in a tri-level imaging apparatus. The IRD examines the background patch of the tri-level image and declares a machine fault if excessive toner is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.