Specifications

7193 Service Guide Chapter 1: About the 7193 Printer
August 1998 3
book for instructions on replacing the printhead. See “Cleaning the Printer” later in this
chapter for cleaning instructions for the printhead.
Cleaning the Printer
Cleaning the Cabinet
Clean the cabinet as needed to remove dust and finger marks. Use any household cleaner
made for plastics, but test it first on a small unseen area. If the receipt paper bucket is dirty,
wipe it with a clean, damp cloth. The cabinet materials and finish are durable and are
resistant to the following items:
• Cleaning solutions
• Lubricants
• Fuels
• Cooking oils
• Ultraviolet light
Cleaning the Thermal Printhead
If the printhead appears dirty, clean it with cotton swabs and rubbing alcohol.
Caution: Do not spray the thermal printhead with household cleaner as this may damage
it and the electronics.
If spotty or light printing problems persist after cleaning the thermal printhead, contact
your NCR authorized service representative.
Note: The thermal printhead does not normally require cleaning if the recommended
paper grades are used. If non-recommended paper has been used for an extended period
of time, cleaning the printhead with the alcohol pen will not be of much benefit.
If this is the case, the printhead will need to be changed. See “Removing the Printhead” in
“Disassembling and Reassembling the Printer” later in this book for instructions on
replacing the printhead.