Printing apparatus and calibration control method
US6963424B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2000 |
| Grant date | Nov 8, 2005 |
| Priority date | — |
| Expiry date | Aug 21, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/6033
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A calibration for the printing apparatus is performed under relatively easy management by a host computer and then the printing apparatus always can perform printing in a condition where an appropriate calibration is made for the printing apparatus. More specifically, the printer holds calibration data downloaded from the host computer and executes a density control (S1001) which generates calibration data at a predetermined timing independently in the printer. Then, the printer checks whether a difference between a print density value represented by the calibration data generated in the printer and a print density value represented by the calibration data held is greater than a predetermined threshold value (S1003). When the difference is greater than the predetermined value, the printer notifies an error (S1004) and sets a correction table based on the calibration data generated by the printer (S1006).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.