Monitoring of color developer housing in a tri-level highlight color imaging apparatus
US5132730A · kind A · utility
8Cited by
40References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 1991 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Sep 5, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/01
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a single pass, tri-level imaging apparatus, machine cycle down is initiated when the color developer housing is functioning improperly. The voltage level of the color image prior to its development is read using an electrostatic voltmeter (ESV). The voltage level thereof is also read after development. The difference between these two readings is compared to an arbitrary target value and a machine cycle down is initiated if the difference is greater than the target.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.