Faulty paper
photosensor
X
Faulty services
motor
X
Faulty paper feed
motor
X X
Faulty main board X
Document feed
belt adjustment
X
Needle-platen
distance
adjustment
X
Ribbon-needle
protection fin
adjustment
X
Paper
photosensor
adjustment
X X
Print bar
adjustment
X
Front pressure
roller adjustment
X X X
4.6. PREVENTIVE MAINTENANCE
4.6.1. CLEANING
For a correct printer operation, it is suggested that the internal components
of the machine be cleaned periodically and whenever the machine is
serviced.
4.6.2. CLEANING THE CASE
Power off the machine, unplug it from the electrical outlet and then clean its
case using a damp cloth; avoid using corrosive substances such as solvents,
alcohol solutions, petrol or abrasive components.
4.6.3. CLEANING THE PAPER PATHS
Clean all the document paths including the paper feed rollers of the front
paper feeder, making sure to remove any paper or ribbon residues that are
deposited on the parts. Also remove any foreign matter.
4.7. LUBRICATION
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