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SECTION IV
MAINTENANCE
4.1
GENERAL
Maintenance of the DP-9000/1 or DP-9500/1 printers at the
Operator/User level consists of preventive maintenance pro-
cedures (cleaning and operational checkout), a limited level
of troubleshooting and replacement of a few common components.
In general, detailed checkout, adjustments and repairs are
not normally possible at this level because of the specialized
test equipment and knowledge required.
This section gives
instructions for those maintenance procedures which can be
performed without specialized equipment or knowledge beyond
that given here.
4.2
PREVENTIVE MAINTENANCE
The only preventive maintenance required of the printer is
periodic cleaning.
The actual schedule will depend upon en-
vironment and usage.
In normal usage a recommended interval
for cleaning would be approximately every three months or
3000 pages of printing, whichever occurs first.
4.2.1
CLEANING.
The materials required for cleaning are:
• Soft Bristle Brush (2 inch paint brush)
• Soft Cotton Cloth
• Isoprophyl Alcohol or a good grade of plastic cleaner
(test on an obscure corner before use)
• Very Low Pressure Air Source (breath pressure is
sufficient)
Cleaning consists of wlplng the head carriage shafts, cables,
and other metal surfaces with a dry soft cloth.
Do not use
any cleaners on the shafts unless corrosion is evident.
Sheet
metal surfaces may be cleared of oil and other accumulations
with a soft bristle brush or cloth and a small amount of
isoprophyl alcohol.
Plastic surfaces may also be cleaned with
isoprophyl alcohol.
Use a soft bristle brush and/or a low
pressure air stream to clean the circuit board when required.
4-1
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