MAINTENANCE Essentially, your printer is a robust piece of equipement, but should be
treated with a modicum of care in order to avoid malfunctions. For example:
l Keep your printer in a “comfortable” environment. Roughly speaking, if
you are comfortable, then the environment is suitable for your printer, too
(see Chapter 1).
l Do not subject the printer to physical shocks or excessive vibration.
. Avoid extremely dusty environments. Dust is the enemy of all precision
mechanical devices.
. To clean the exterior of the printer, use a choth barely dampened with
either water with a little detergent or a little alcohol, but do not allow any
liquid to fall inside the printer.
9 The interior of the printer may be cleaned with a small vacuum cleaner or
a compressed-air aerosol (sold for this purpose). When performing this
operation, be sum not to bend or damage any cable connections or
electronic components.
REPLACING THE PRINT HEAD This is not a job which you will need to do very often. The print head has been
designed to last for about 100 million characters. In normal everyday use,
this translates to years of life. However, if the print quality is faint, even after
you have changed the ribbon or you have adjusted the gap between the print
head and the platen (see Chapter l), the print head may need replacement.
Only use a replacement print head as recommended by your supplier.
1. Turn OFF the printer, and unplug the power cord.
2. Remove the top cover and ribbon cartridge.
3. If the printer has been in operation immediately before this operation, the
print head will be hot. Allow time for the print head to cool before
attemping to work on it.
4. Move the print head carriage toward the center, and remove the color
ribbon holder on the carriage.
CAUTION: Do not lose the spring inside the holder.
5. Unscrew the two screws that hold the print head in place and set them
aside.
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