MACH4
Cleaning and Maintenance
Edition 7/06
Operator’s Manual
23
8
Cleaning and Maintenance
The label printer
MACH4
requires very little maintenance. It is important to clean the thermal printhead
regularly. This guarantees a consistently good printed image and plays a major part in preventing pre-
mature wear of the printhead. Otherwise, the maintenance is limited to occasional cleaning of the device.
8.1
General Cleaning
⇒
Remove dust and paper fluff from the print area with a soft brush or vacuum cleaner.
⇒
The cover of the printer can be cleaned with a standard cleanser.
8.2
Cleaning the Media Feed Rollers
Accumulations of dirt on the media feed rollers may impair the media transport and the print quality.
In the case of slight soiling, it is not necessary to remove the print roller. The roller can be turned step
by step by hand. Use a soft cloth and roller cleaner for cleaning. Remove the print roller (see section 8.6
on page 25) if it is heavily soiled.
8.3
Cleaning the Printhead
Dirt can collect on the printhead during printing which affects the printed image, for example by causing
different contrasts or longitudinal stripes.
1. Open the cover, fig. 1 (9) and hinge down the control panel, fig.1 (16), press the release button, fig.1
(14) and hinge the print module up.
2. Remove the transfer ribbon and the label stock (see section 6 on page 14)
3. Clean the surface of the printhead with a cleaning pen, or with a cotton swab dipped in isopropyl alco-
hol.
4. Allow the printhead to dry for two or three minutes before starting the printer.
DANGER!
Danger to life and limb from electric shock!
Disconnect the printer from the electricity supply before starting any maintenance work.
CAUTION!
The printer can be damaged by aggressive cleansers. Do not use abrasive cleaners or solvents
for cleaning the external surfaces or modules.
CAUTION!
Printhead damage!
⇒
Do not use sharp objects for cleaning the printhead.
⇒
Do not touch the protective glass layer of the printhead.
CAUTION!
Risk of injury from the hot printhead line.
Ensure that the printhead has cooled down before starting cleaning.
