Seiko FB 390 - Manual (Page 31)

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Cleaning the platen
Clean the platen with a soft cloth.
Intervals and Materials for Cleaning
Clean inside the printer in accordance with the following:
Ribbon Cartridge The inked ribbon in the cartridge is a continuous loop and will print several
million characters before needing replacement. When printed characters begin to appear feint, it
is time to replace ribbon cartridge.
Replacing the ribbon is a simple matter of taking out the old cartridge and replacing it with a new
one. Before removing the old cartridge always turn off the power and allow the print head to cool,
as it can be extremely hot. Then slide the print head to the left edge to avoid damage to the print
head cable. See the ribbon installation section in Chapter 2 for details.
Problems And Solutions
The following are some of the common problems, which you may encounter when using the
printer. By implementing the solutions suggested, you should be able to resolve them.
Printer is “Dead” No Light, No Action Make sure that it is plugged in, check both ends of the
power cable. Make sure the power switch is turned on. Test the socket with another appliance to
make sure it is working, check the fuse in the plug attached to the power cable. Take your printer
to your dealer to be serviced.
Printer Won’t Work Be sure that the printer cable is plugged into both the printer and the
computer. Make sure that there is paper inserted and the ONLINE LED is on.
Printing is Feint Be sure that the ribbon cartridge is installed correctly. It must be fitted securely
into place and the ribbon must pass between the print head and the ribbon mark. Adjust the gap
adjust lever (move it upward). Replace the ribbon. Replace the print head.
NOTE
Over-application of oil may cause a build up of dust and dirt with resulting printer
failure.
NOTE
Intervals cleaning: Every 6 months or 300 hours of operation.
(Whichever comes first)
Materials: Dry cloth (gauze or soft cloth)