Troubleshooting printing problems on the DM300C, DM400C, DM475

UPDATED: 15 June 2015

Print quality on your DM300C™, DM400C™, DM475™ meter can be affected by a number of things -- from lack of use to overuse. 

  • When the meter sits idle for a long span, ink drops from previous printings can dry out and clog the nozzles in the print head
  • Overuse can accelerate wear and tear on the mechanical parts of your printer assembly, which can affect alignment and other printer functions

These factors, along with other variables, can contribute to a deterioration in your print quality. Here are some steps to follow to help prevent and correct printing problems.

Poor print quality
If your print appears faded or streaking, you might fix this issue by cleaning the print head and running the maintenance function on the meter.

  • Cleaning the print head and maintaining the printer nozzle on your DM300C, DM400C, DM475

Faint quality or No printing
Low ink or no ink in the print cartridge can impair print quality and cause other problems with your meter. If your meter shows a system message of Low Ink or No Ink, order a new ink cartridge.

  • Replacing the ink cartridge on a DM300C, DM400C, DM475

Poor print after replacing ink cartridge

  • Make sure the protective tape covering the ink hole has been removed from the ink cartridge
  • It is possible that you may have accidentally installed a spent cartridge. You can determine if the cartridge is new or used by weighing it.
    A DM300C, DM400C, or DM475 cartridge will weigh 81 grams when full, and 49 grams when empty.

Testing for print quality

  • Print a test pattern from a DM300C, DM400C, DM475

Quality does not improve after troubleshooting

  • Replace the print head