Toner conservation by pel modulation with operator control
US5729270A · kind A · utility
7Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1994 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | Jul 27, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2215/0071
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Toner is conserved in printer (1) under operator control by changing the final modulation for each bit in a bit map depending on whether the bit is an edge bit or an internal bit in the character being printed. Since only the final modulation is affected, processing speed and efficiency are not degraded. The operator can select various degrees of internal gray and internal white. Some levels of gray may be satisfactory for some final correspondence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.