NCR 7169 - Receipt Printing is Light or Spotty

2-67 Troubleshooting Problems
Receipt Printing is Light or Spotty
Cause What to Do Where to Go
Thermal print
head may be
dirty
Open the receipt cover and clean the
thermal print head with cotton swabs and
isopropyl alcohol.
Note: Do not use the alcohol to clean other
parts of the printer. Damage will occur.
Refer to Cleaning the
Printer on page63.
Contact a service representative if this does
not resolve the problem.
Refer to Contacting a
Service Representative
on page75.
Note: The thermal print head does not normally require cleaning if the recommended
paper grades are used. If a non–recommended paper has been used for an extended
period of time, cleaning the print head with alcohol and cotton swabs will not clean it
enough. For information on the recommended paper, refer to Ordering Paper and Supplies
on page57. For information on power consumption, refer to Power Requirements on
page151.