Cleaning Protocols for Mimaki UJF-3042 & UJF-6042

  • It is recommended to make a daily visual inspection of the printheads, print plate, filters, and wiper. Cleanliness of these components is highly important. Dry ink is a contaminant that will clog heads if proper daily and weekly maintenance is not done. If you see regular ink buildup, you need to analyze your print height and print conditions.
  • At the start of each day run a normal clean cycle (on the Machine Control Panel) and produce a test print to verify that heads are firing properly.
  • A Nozzle Wash (on the Machine Control Panel) should be done a minimum of 3 times per week at the end of the day. This process takes between 10 and 15 minutes. If you are running extended shifts (beyond 8 hours), it is recommended to do a nozzle wash at the end of each running cycle (so that the heads can sit over a long period of time).
  • It is not necessary to manually wipe the printheads every day. Whenever you manually wipe the printheads you run the risk of introducing foreign objects that can potentially clog nozzles.
  • If you determine you need to manually clean printheads, use Mimaki Cleaning Solution and a clean lint free swab. When doing a manual wipe, you want to apply minimal pressure and wipe from the back of the printhead to the front.
  • 99% Isopropyl Alcohol should only be used as a last ditch effort to recover nozzle dropout. If you need to use 99% Isopropyl Alcohol, you are probably already on the phone with an IDS Service Technician.
  • 99% Isopropyl Alcohol can be used to clean the head plate, but avoid print nozzles as you are unable to purge the solution out of the nozzles in the Mimaki printers.
  • *It is imperative that the wiper component that was sent to you is installed in the machine. If the wiper is not functioning properly, then the above cleaning cycle, test print, and nozzle wash will not function properly.