SATO M-5900RV Operator And Technical Reference Manual page 61

3.3 Cleaning the Print Head and Platen
NOTE: Only solvent recommended by SATO should be used to periodically
remove paper residue from the print head. Apply with a cotton swab using due
care. Frequency of cleaning depends upon paper type and mechanical factors
but should be done at least every two rolls of labels.
Print Head
STEP
PN 9001081
Rev. C
PROCEDURE
CAUTION: Note that the tear bar which is located directly in front of
the print head, is very sharp. Be extremely careful around this tear
bar when cleaning the print head.
SATO M-5900RV Operator and Technical Reference Manual
Section 3. Adjustments and Maintenance
Page 3-3