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4-1.
Preventive Maintenance
ITEM
FREQUENCY
External Cleaning
As Required
PROCEDURE
Clean all external surfaces using
a
mild detergent and
a soft,
clean,
lint-free cloth.
Internal Inspection
Each Ribbon
Change
Print Head and
Each Ribbon
Carriage Assembly
Change
Print Head
General Cleaning
Each Ribbon
Change
6
Months
Carriage Guide
Bars
6
Months
Paper Drive
Roller
6
Months
Visually inspect interior of printer
for
loose wires, connectors, and
hardware, chafing of cables, and
badly worn or damaged parts.
After removing ribbon, use a light-
bristle brush to carefully remove
dust and residue from print head
and
carriage assembly.
Using
a soft,
clean, lint-free cloth,
gently remove all dried
ink from the
front of the print head.
Perform all of
the above procedures.
Clean the platen surface using
a
mild detergent
and water, and a soft,
lint-free cloth.
Using
a
vacuum
cleaner with
a
soft brush attachment
carefully vacuum interior of printer
taking care not to damage printer.
Move print head to left side of
printer.
Apply several drops of
lubricating oil to clean, lint-
free
cloth and lightly rub carriage
guide bars to remove any build-up of
residue.
Move print head to right
side of printer and
repeat procedure.
Using
a
lint-free cloth, clean
the
paper drive roller and plate bushings.
After cleaning, apply one drop of
light lubricating oil to both paper
roller end plate bushings.
Cycle the
paper roller using the thumbwheels to
allow the oil to seep into the bushings.
4-2
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