Method and apparatus for monitoring parameters corresponding to operation of an electrophotographic marking machine
US6427053B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2001 |
| Grant date | Jul 30, 2002 |
| Priority date | — |
| Expiry date | Apr 2, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P90/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophotographic marking machine is described including a first set of data with a plurality of parameters corresponding to a plurality of prior electrophotographic markings or frames. The electrophotographic marking machine further includes a second set of data selected from the first set of data based upon a predetermined set of criteria. In addition, the electrophotographic marking machine has a volatile storage device for storing the first set of data, and a non-volatile storage device for storing the second set of data. A method for assessing operability of an electrophotographic marking machine is also described. The method includes the steps of recording a first set of data including a plurality of parameters corresponding to a plurality of prior electrophotographic markings, storing the first set of data in a volatile storage device, selecting a second set of data from the first set of data based upon a predetermined set of criteria, and storing the second set of data in a non-volatile storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.