Common print quality faults: how to identify and avoid them

  • By Richard Harris
  • September 21, 2016
  • Industry
  • Beverage
  • Food
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Most coding errors are born from simple wear and tear. For example a misaligned print head can cause phase errors, incorrect breakups and missing drops. Other causes of print errors stem from misuse of the coder or inappropriate installation. Yet whatever the cause, the net result is the same: codes that are misaligned, difficult to read or sometimes completely illegible. And the problem almost always gets worse if left alone.

>> How to optimise your printing technology for peak performance

With most errors, the first thing to do is check the print head is clean and properly aligned. Problems with ink pressure are another common cause of printing errors. But if problems persist and recur frequently, it may be best to call an engineer.


Prevention trumps cure

Printing errors are generally straightforward to fix. That doesn’t stop them being frustrating - stifling productivity and placing a handbrake on efficiency. Following your housekeeping and cleaning programme will help to prevent errors. But stopping them altogether could be as easy as an annual optimisation routine. It’s a kitchen-sink approach to keeping your coding technology at peak performance - and it gets results. A Domino specialist can visit your site to check things like ink stream alignment, ink temperature and ball fall time for viscosity. Then there’s the cooling fan, positive air pump and solenoid valves to scrutinise. And what about electrical supply, air supply and festo fittings? There are several areas on the housekeeping list - but an experienced technical engineer will be done in less than 90 minutes. This ensures your printers have a clean bill of health and are capable of delivering optimum performance and the highest productivity possible. Week in, week out.


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