Technique for correcting printing errors in a shuttle type multifunctional apparatus
US6353481B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 5, 1998 |
| Grant date | Mar 5, 2002 |
| Priority date | — |
| Expiry date | Nov 5, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K15/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a technique for correcting printing errors in a shuttle type multifunctional apparatus, a preset reference pattern is printed and the printed reference pattern is scanned. Then, the number of dots are detected as errors between the original reference pattern and the scanned reference pattern. After calculating a correcting value by adding and subtracting the numbers of dots corresponding to the errors to and from numbers of printing nozzles according to a resolution of the multifunctional apparatus, the multifunctional apparatus controls a moving distance of an electric line feeding motor. Accordingly, a simple operation enables the printing errors to be corrected, thereby improving the efficiency of operations in the multifunctional apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.