Physio Control LIFEPAK 9 - Page 92

Testing 3
Access the Test Menu (turn power off, then press ON while pressing and
holding down LEAD SELECT and HR ALARM until the Test Menu is
displayed).
Press W ECG SIZE A to scroll to the RECORDER test, then press
HR ALARM. Make sure the RECORDER: PATTERN test is selected.
Note: During this calibration procedure the printhead dot intensity is
decreased to prevent damage to the printhead and drive roller.
Consequently, print legibility may range from light to invisible.
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© August 1993 Physio—Control
Turn R176, Paper Out Sense, on the Main PCB fully clockwise.
Make sure paper is installed in the recorder and press RECORD.
Confirm that the recorder does not print, or if it does print that the
NO PAPER message is displayed.
Slowly turn R176 counterclockwise while repeatedly pressing RECORD.
Adjust R176 just to the point where the recorder is on and the
NO PAPER message is not displayed. This procedure may need to be
repeated to determine this threshold.
Remove the paper from the recorder and close the recorder doors.
Counting the number of rotations required, turn R176 counterclockwise
while repeatedly pressing RECORD. Adjust R176 just to the point
where the recorder turns on. Note the number of rotations required to
make the adjustment.
Adjust R176 to the midpoint of the number of rotations between steps 6
and 8.
Confirm that the recorder only operates when paper is loaded.
Press W ECG SIZE to select the RECORDER: MOTOR SPEED test.
Press RECORD. Inspect the printout and confirm that the period of the
printed sawtooth waveform is 25+1mm. Adjust R8, Motor Speed
Adjust, if necessary to obtain the period of 25 +1mm. Press RECORD to
turn off the recorder.
Reinstall the front panel.
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