Printing system and method that uses a universal serial bus (USB) high-speed interrupt out pipe to transfer print data from the host computer to the printer
US7978357B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2006 |
| Grant date | Jul 12, 2011 |
| Priority date | — |
| Expiry date | Nov 16, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/1293
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In accordance with the invention, it has been determined that the bandwidth, guaranteed periodic delivery and error correction characteristics of a USB High-Speed Interrupt OUT pipe of the USB 2.0 standard enable the Interrupt OUT pipe to be used to transfer print data from the host computer to the printer. By using the Interrupt OUT pipe for this purpose, it is no longer necessary to store an entire rasterized page in the formatter memory of the printer before commencing printing of the page. Consequently, the size of the formatter memory device can be relatively small compared to the size of the formatter memory device that is currently used to store an entire rasterized page. Alternatively, the same size memory device as that currently used to store an entire rasterized page may be used to enable higher resolution pages to be printed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.