Continued printing by resolution reduction
US5717499A · kind A · utility
2Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1995 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Aug 25, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2215/0071
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Printer (1) has the capability of printing in either 600 by 600 dpi resolution or 300 by 300 dpi under control of data processor controller (17). Bit maps for printing are stored in memory (19). When complex pages require more memory than is available, information from groups of bits in the 600 by 600 bit map is used to define the significance of one bit in a 300 by 300 bit map and the page is printed in the 300 by 300 bit map. This avoids terminating printing or printing partial pages and the difference in images are minor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.