Barcode printing system and its control method
US6002844A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1997 |
| Grant date | Dec 14, 1999 |
| Priority date | — |
| Expiry date | Aug 4, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K1/121
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
This invention not only separates printing and barcode checking as independent processes but also simplifies printer processing to allow to print a large number of barcodes at high speed and to satisfactorily check barcodes. For this purpose, when a print control circuit unit (501) receives print information including a barcode, information associated with barcode checking is transmitted to a barcode checker unit (601) prior to printing. Upon actually printing an image including a barcode, when the printed barcode is conveyed to the position of a reader (603) in the barcode checker unit (601), an RD.sub.-- TRG signal is output to check the printed barcode. Upon reception of this signal, the barcode checker unit (601) reads the printed barcode a plurality of number of times at different positions, and when the normal reading ratio is low, it outputs an error signal to the print control circuit unit (501).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.