Printing method and apparatus therefor
US6305856A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 16, 2000 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | May 16, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J11/42
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
There is disclosed a method and an apparatus of printing an image in a rectangular recording area on a recording material by a printing head as the recording material is advanced in a sub scan direction perpendicular to a main scan direction of the printing head. The printing head has a wider main scanning range than a width of the recording area. On side edge of the advancing recording medium is detected at two points to determine positions in the main scan direction of the two side edge points. Based on the positions of the side edge points, an inclination of the recording medium to the sub scan direction as well as positions of four corner points of the recording area in the main and sub scan direction relative to a center point of the main scanning range are determined. Based on the relative positions of the four corner points, a sub scanning range of the printing head that corresponds to a length of the recording material to be advanced for recording one image is determined, such that a scanning area defined by the main and sub scanning ranges covers the recording area. Then, print data is produced from image data of an image to print and blank data, such that the print data c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.