CD printer centering adjustment
US5927208A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1997 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Dec 31, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J3/4071
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A CD printer for printing labels on compact discs print information on a CD centered on a print program center. A support for the CD is movable in one axis. The printer moves on a perpendicular axis. The axis forms a plane parallel to the plane of the disc. The CD may be centered selective to the printer program by printing on the disc a first series of lines that are radially spaced and extend from the CD center along both of the axes, and then rotating the CD 180.degree. and printing a second set of lines which are radially spaced along each of the axes but are spaced a radial distance less than the lines printed in the first printing. A vernier is established and where the lines align, the amount of offset from a centered position is indicated. Offset can be corrected by moving the tray and print head on its mounting in the respective directions to a new zero position indicated by the vernier display. The CD is held in a repeatable position on its tray through the use of a three-point contact arrangement that engages the edges of the discs at three locations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.