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6-2
Trouble-Shooting
Problem Solution
Printing is too light or too dark. Make sure that the ribbon cartridge is properly
installed and that the ribbon feeds smoothly.
Make sure that the paper thickness lever is set for the
thickness of your paper. See the Paper Thickness
Lever Settings table in Chapter 2, page 2-11.
Check ribbon wear. Replace the ribbon if necessary.
Make sure that the paper thickness lever is set for the
thickness of your paper. See the Paper Thickness
Lever Settings table in Chapter 2, page 2-11.
Check ribbon wear. Replace the ribbon if necessary.
Check whether the tip of the print head is dirty.
Clean the head with a soft cloth if necessary. For
removing the print head, see the section Replacing
the Print Head in Chapter 5, page 5-5.
The page is blank. Make sure that the ribbon cartridge is properly
installed. See the section Installing the Ribbon
Cartridge in step 3 of the Installation Guide, on
page 1-8.
Make sure that the interface cable is securely
connected to both the printer and computer.
Make sure that the printer protocol selected in your
software is the same as the protocol selected on the
printer. See step 6 Connecting the Printer to Your
Host System on page1-17 of the Installation Guide.
If you are using an DEC-423 serial interface, make sure
that the serial settings required by your software or
computer are the same as the settings on the printer.
See the section Changing Install Options in Chapter
4, page 4-26.
If the PROTOCOL option is set to AUTO, the printer
may not detect the proper protocol. Force this option
according to your need. See the section Changing
Macro 1 and Macro 2 Options in Chapter 4, page
4-16.
Use the printer's vertical alignment function to check
the vertical print alignment. If necessary, adjust the
print alignment. See the section Checking Vertical
Alignment in this chapter, page 6-7.
Stains or smudges appear on the
page.
Printing is erratic or the wrong
characters are printed. Many ?
or unexpected characters are
printed.
Printing is vertically misaligned
(jagged).