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Long test mode
If the printer is turned on while the (PAPER FEED) button is pressed, the
printer will enter the long self-test mode. The printer will print the version
number of the printer’s ROM, the current Electronic DIP Switch (EDS)
settings and the current Dot Adjustment settings, followed by the entire
character set printed in each font and pitch available.
The test repeats endlessly, so you must turn the power off to stop it.
... V,, ,., 4’0
Figure 4-5. Long self-test.
Since the self-test prints across the full width of the carriage, it is recom-
mended that the printer is loaded with the widest paper possible to avoid
damage to the print head and/or platen. In addition, the total number of lines
printed is considerable, more than can be accommodated on a single sheet,
so fanfold paper is recommended for this test.
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