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54 Ploblem Solving, Maintenance, & Service
…I’m getting strange symbols, incorrect fonts, etc., when I try to print a document?
The printer driver you have engaged does not agree with the emulation selected for
your printer.
To check the emulation selected, first make sure paper is loaded, then press the SEL
and SHIFT buttons simultaneously to enter the MENU on your printer. Next, press
the GROUP button: this will print the emulation selected.
If the emulation is not the one you want to use, press the SET button to change it to
the one you want before exiting the MENU (to exit, press SEL and SHIFT buttons).
If the emulation is correct, check your software documentation on how to select a
printer driver, then check to be sure that you have selected one of the drivers listed for
that emulation on page 50). The closer the driver is to the top of the list, the more
compatible it will be with your printer. If your software doesn’t have any of the indi-
cated drivers available, check with the software manufacturer to see if they have added
any additional drivers since you purchased your software.
If you have embedded any printer commands in your software, check to be sure that
you entered them correctly.
…I’ve installed a brand new ribbon and the printing is smeared and streaked?
The plastic shield on the ribbon is either loose or missing. The shield must be left on
the ribbon when you are installing the cartridge. To remedy this situation, move the
printhead to the center of the platen (careful – printhead may be HOT!) and lift off the
ribbon cartridge. Check the ribbon shield. If it’s loose, secure it in place properly. If it’s
missing, locate it and reinstall it.
…ink smears on the paper when I print narrow columns?
This may be caused by excessive printhead travel from the centering position. Enter
the Menu and set the Centering Position to MODE 1 (see Menu Mode in Chapter 3).
For wide-carriage Model ML791, if MODE 1 doesn’t work, try setting the Centering
Position to MODE 2.