Printer controller for object optimized printing
US5687303A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Nov 11, 1997 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2215/0002
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An object optimized printed system includes an image output terminal controller. The system inputs a print file defining a plurality of pages in a page description language and locates the plurality of objects forming each page and their object types. Based on the determine object types and any explicit rendering commands in the PDL file, the system automatically generates rendering tags for each of the objects. The rendering tags are used to control the image output terminal to optimize the printing by the IOT on an object-by-object basis. Based on the objects and the generated rendering tags, the system generates the differing types of data and the command instructions on a scanline-by-scanline basis. The generated command instructions and data are output to the IOT controller scanline-by-scanline. The data output to the IOT controller includes metabit data which is generated from the rendering tags. The metabit data output to the IOT controller is used to control various subsystems of the IOT controller and the IOT to optimize the printing characteristics of the IOT for each differing object on each scanline. The metabits can optimize such processing subsystems as halftone gener…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.