Datamax H Class Operator's Manual page 89

Cleaning Card Procedure (for printers using direct thermal media, or
thermal transfer media and wax ribbon; also, use the following procedure if
symptoms continue after the Cotton Swab Procedure has been tried):
1. Perform the "Preliminary Cleaning Steps", as described above.
2. Place a Cleaning Card under the printhead. (Use part number 70-2013-01 for 4-inch
model printers).
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, enter the menu system and select 'CLEAN HEAD NOW' in the MEDIA
SETTINGS / PRINTHEAD CLEANING menu.)
5. After the cleaning card has been run through the printer, reinstall media (and ribbon, if
necessary). Plug in and turn ON the printer. Run a few sample labels and examine
them. If streaking is still present, go to "Cleaning Film Procedure" below; otherwise, this
completes the procedure.
81