Section 5: Cleaning and Maintenance
Page 5-2 CG4 Series Operator Manual
5.1 CLEANING THE PRINT HEAD, PLATEN AND ROLLERS
The print head not only generates printouts of barcodes, but also graphics and text. To produce optimal
printing, it must be kept clean in spite of the dirt and adhesive that constantly accumulates on its print surface.
Furthermore, dirt can accumulated along the label path, affecting parts like sensors and guides, and reducing
their performance.
Therefore, it is important to clean these important components periodically. The printer cleaning kit and
cleaning sheets can be purchased from your authorised SATO representative.
When to clean with a cleaning kit
♦ For the print head, platen roller, paper sensor, and label guide: clean after using up every other roll of
media.
♦ For other parts: clean after finishing every six rolls of media.
When to clean with the cleaning sheet
♦ For print head: clean after using every six rolls of media, or when you find any burned glaze on the surface
of the print head.
5.2 HOW TO CLEAN THE PRINTER (CLEANING KIT)
If you are using a carbon ribbon, be sure to remove it before cleaning. Follow the instructions supplied with
the cleaning kit. Use the items to clean the following parts.
1. Before starting, get ready an approved cleaning kit from
your SATO representative. Make sure the printer is
powered off, and remove the power cable.
2. Lift the Top Cover.
3. Remove the media and the ribbon.
Cleaning the Print Head
4. Apply Thermal Print Head Cleaner to a cotton swab.
5. Locate the Print Head Assembly which is mounted
under the Top cover. The Print Head faces downward
along the front edge of the assembly.
Press the end of the dampened swab along the entire
width of the Print Head.
6. Check for any black coloring or adhesive on the swab
after cleaning. Discard the dirty swabs.
7. Repeat, if necessary, until the swab is clean after it is
pressed over the print head.
Cleaning the platen roller, sensor and label guide
8. The platen roller is the black rubber roller near the front
panel. Wet some cotton swabs or cotton cloth with
cleaning solution. While rotating the platen roller with
your fingers (see arrow), clean the entire length of the
roller using one or more cotton swabs. Wipe any dirt or
accumulated adhesive off the platen roller.
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