Maintenance And Adjustment; Cleaning The Printer Head - Sam4s ER-900 Series Service Manual

5 Maintenance and Adjustment

5-1 Maintenance

5-1-1 Cleaning the Printer Head

Paper dust on the heating elements may lower the print quality. In this case, clean the print head as follows:
After printing, the printer head can be very hot.
Be careful not to touch it.
Also let it cool before you clean it.
Do not damage the printer head by touching it with your fingers or any hard object.
1. Turn the ECR System power switch off.
2. Open the Printer Cover.
3. Open the cover of paper supplier with pushing the GREEN CAP LEVER.
4. Clean the Printer Head Heat Element with a cotton swab moistened with alcohol solvent.
(ethanol, methanol or IPA )
5. After confirming that alcohol solvent has been dried up completely, close the cover of paper supplier
until be locked.
Caution: Note that the thermal head(Thermal Element and Radiation Plate) becomes very hot during normal
operation. To prevent the danger of burn injury from thermal, be sure to wait for about 10 minutes after
turning power off before beginning the cleaning.
SAM4S ER-900/SPS-300 SERIES
Figure 5-1 Clean the Printer Head (ER-900 / SPS-300 Series)
5-1