Automatic developability sensing in electrophotographic printing
US4431300A · kind A · utility
12Cited by
10References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 16, 1982 |
| Grant date | Feb 14, 1984 |
| Priority date | — |
| Expiry date | Feb 16, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G15/0862
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus in which the developability of electrostatically charged particles in a mixture of particulate material is measured. The apparatus includes a transparent member positioned closely adjacent to a developer roller of an electrophotographic printing machine. Electrostatically charged particles are attracted from the particulate mixture being transported by the developer roller to the member. A beam of energy is transmitted through the member. The intensity of the internally reflected beam is detected and a signal generated indicative of the quantity of charged particles adhering to the member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.