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• If you’re using an extension cord or power strip with the printer, make sure that
the total of the amperes required by all the equipment on the extension is less
than the extension’s rating. Generally, the total ratings of all equipment plugged
into any one power line should not exceed 15 amperes. Don’t exceed this unless
you know that the power line your equipment is plugged into has a rating above
15 amperes.
• Aside from the routine maintenance described in this handbook, don’t try to
service the printer yourself; opening the cover may expose you to shocks or
other hazards. Don’t make any adjustments other than those outlined in the
manual – you might cause damage requiring extensive repair work.
• If anything happens that indicates that your printer is not working properly or
has been damaged, unplug it immediately and follow the procedures in Chap-
ter 5. These are some of the things to look for:
The power cord or plug is frayed or damaged.
Liquid has been spilled into the housing, or the printer has been exposed to
water.
The printer has been dropped or its cabinet has been damaged.
The printer doesn’t function normally when you’re following the operating
instructions.
• Screen jitter on your CRT may occur in an environment where the space be-
tween your printer and CRT is narrow (200 mm or less). In such cases, open up
the space.