Datamax-O’Neil H-Class: Printhead Cleaning Procedures

by ScanSource Technical Services on October 12, 2011

in Barcode Printing,ScanSource POS & Barcode,Technical Knowledge Portal,Technology

Post image for Datamax-O’Neil H-Class: Printhead Cleaning Procedures

If print quality declines (symptoms can include unreadable bar codes or streaks through text and graphics), the typical cause is debris buildup on the printhead which, left unattended, can lead to premature dot failure.

Depending upon the supplies and printing parameters used, different cleaning methods are recommended.

Cotton Swab Procedure (for users of direct thermal media, or thermal transfer media with wax ribbon):

  1. Turn OFF the Power Switch and unplug the printer. Raise the cover, then raise the Printhead Assembly and wait briefly for the printhead to cool.
  2. Remove media and ribbon. Using a Cotton Swab moistened (not soaked) with isopropyl alcohol, thoroughly clean the printhead.

  1. Allow the printhead to dry. Reinstall media (and ribbon, if needed). Plug in the printer and turn ON the Power Switch. Run a few sample labels and examine them. If streaking is still present, use Cleaning Card Procedure, below; otherwise, this completes cleaning.

Cleaning Card Procedure (for users of direct thermal media, or thermal transfer media with wax/resin ribbon combinations; also for unsuccessful Cotton Swab cleaning attempts):

  1. Raise the cover, then raise the Printhead Assembly and wait briefly for the printhead to cool.
  2. Remove media and ribbon then place a Cleaning Card under the printhead. (Part number 70-2013-01 for 4-inch cards; and, 70-2014-01 for 6-inch cards)
  3. Close and lock the Printhead Latch and disengage the Leveling Cam.
  4. Close the cover then press and hold the TEST Button to initiate cleaning. (As an alternate, select CLEAN HEAD NOW see Section 4.2.1.)
  5. After the cleaning card has been run through the printer, reinstall media (and ribbon, if needed). Plug in and turn ON the printer. Run a few sample labels and examine them. If streaking is still present, use the Cleaning Film Procedure, below; otherwise, this completes cleaning.

Cleaning Film Procedure (for users of thermal transfer media and resin ribbon, when printing with a Heat Value of 22 or higher, or when other methods prove unsuccessful):

  1. Raise the cover, then raise the Printhead Assembly and wait briefly for the printhead to cool.
  2. Remove media and ribbon then place a sheet of Cleaning Film under the printhead. (Part number 70-2087-01 for 4-inch film; 70-2087-02 for 6-inch film; and, 70-2087-03 for 8-inch film)
  3. Close and lock the Printhead Latch and disengage the Leveling Cam.
  4. Close the cover then press and hold the TEST Button to initiate cleaning.
  5. After the cleaning film has been run through the printer, turn OFF the Power Switch and unplug the printer. Open the cover then raise the Printhead Assembly and wait briefly for the printhead to cool. Using a cotton swab moistened (not soaked) with isopropyl alcohol, clean the printhead then allow it to dry.
  6. Reinstall media (and ribbon, if needed). Plug in and turn ON the printer. Run a few sample labels and examine them. If streaking is still present the printhead may need to be replaced.
This post was written by

Our experienced, trained technical support team is ready to go to work for you. Whether you need pre-sale support, installation help, or warranty and financing information, we can help. You can also access industry information from a wide variety of sources at our technical knowledge portal. Instead of sorting through the websites of 50 or more manufacturers to find out about products and programs, you can use our categorized search engine to locate information of any type about any technology offered by ScanSource. Just type in your query, and you're on your way. Contact our Technical Support Team at 800.944.2439 ext. 4002. Our staff is available from 8:30 a.m. until 8:00 p.m. EST.

Learn more about this topic at scansource.com >

Comments on this entry are closed.

Previous post:

Next post: