x-Lab Dot Matrix Printer XDP-321 User's Manual
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1.8 Self-test
The built-in self-test function demonstrates that the printer is working properly. You can run the test
with either tractor paper or cut sheet; this section describes the easier way of ASCII self-test with cut
sheet.
1. Make sure the printer is turned off and the paper select lever is at the cut sheet position. Raise the
paper guide.
2. While holding down the
TEAR
button, turn on the printer. At that time, the
POWER LED
blinks and
the
ONLINE LED
is off, which indicates the printer is out of paper.
3. Slide the left guide track until it reaches at the triangular guide mark. Then adjust the right guide
track to match the width of your paper.
4. Slide a sheet of paper down between the two guide tracks until it meets resistance. The printer
loads the sheet automatically and begins printing when pressing the
ONLINE
button.
Figure 1.8-1 Set paper select lever
Figure 1.8-2 Startup self test
Figure 1.8-3 Adjust the position of right and left guide tracks
Note: You should use paper at least 210 mm wide to run the self-test; otherwise, the print
head will print directly on the platen.
