Method and apparatus for sensing magnetic signal strength of xerographically developed toner images for closed loop control of magnetic printing
US5341193A · kind A · utility
7Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1991 |
| Grant date | Aug 23, 1994 |
| Priority date | — |
| Expiry date | Feb 22, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00046
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A printing machine in which magnetically permeable marking particles develop a latent image recorded on a photoconductive member. A read head is positioned on the opposite of the photoconductive member to detect magnetic field intensity effects produced by the leading edge and the trailing edge of the marking particles on the characters recorded. The detected signals are used to control the magnetic quality of the developed image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.