5: Performance Verification Performance Verification Procedures
160
Printer Test
The printer test checks printer parameters, and prints test patterns to check the print head and the paper
drive mechanism.
To start the Printer Test:
1 Select Printer Test from the Service Mode Main menu and press the Smart Select Knob.
The printer prints a series of test patterns.
NOTE: It can take up to 30 seconds for the printout to start on devices that have Asian fonts.
2 Stop the printout.
Once the patterns have printed, press the Print button to stop the printout.
To inspect the test patterns:
1 Check the print quality. Verify that the test patterns on the strip are as indicated in Figure 130.
a Area “A” contains printouts of all characters and symbols. Verify that they are readable.
b Check Area “B” for stray marks or lines.
c Check for white lines (printhead elements stuck off) or black lines (printhead elements stuck
on).
To measure the print speed:
1 Verify the print speed.
Measure between the long tick marks (area “C”) to verify paper speed. The distance should be
25 + 1.25 mm (+ 5%) matching the print speed of 25 mm/sec.
Controls Test
Run these tests when the controls performance becomes a suspect.
Figure 130 Printer Test Output
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