The cab XC4 and XC6 two colour thermal transfer printers are very good for printing GHS labels, but tend to suffer from print quality problems for the following reasons,
- There is only one temperature (temperature) setting to control both colours, so the two ribbons have to be closely matched.
- The design is such that there is a small tolerance on the darkness setting for particular combinations of labels and ribbons.
- The print quality is adversely susceptible to a small amount of residue on the print head, resulting in frequent head cleans.
- The lower print head is very difficult to clean.
- Ribbons are prone to creasing, causing diagonal white lines in the print.
- The print quality problems increase with the higher speeds, so users tend to run the printer at a slower speed, reducing productivity.
- Print quality can be affected by the ambient temperature.
- Wider range of darkness settings, providing good quality print on small text and red diamonds, without ribbon creasing on ADR symbols.
- The printer can be run at the full speed of 125mm / Sec with a good print quality on both colours.
- Less susceptible to ribbon creasing.
- Print quality less affected by small amounts of residue on the print heads.
- Less susceptible to changes in the ambient temperature.