3. If paper remains jammed between the print head and printer, press the ADV button; the jammed paper may
work its way out. If the paper remains jammed, and the printer drive does not advance the paper, manually
advance the drive gear on the side of the printer to free the paper.
4. If these attempts fail to free the jammed paper, remove the printer from the unit to gain full access (see
Disassembly Procedure).
Setting Date and Time
The following code letters and number appear in both Oxygen Saturation and Pulse Rate display fields. The
symbol "xx" represents information in the Oxygen Saturation display field and "yy" represents information in the
Pulse Rate display field.
Begin this procedure by first removing any sensor from the instrument.
1. Switch on the N-20P and allow the unit run POST.
2. When dashes appear in the Oxygen Saturation and Pulse Rate displays, press the D/D (day/date) button
once. At this point, the Oxygen Saturation display field shows "txx", with "t" representing time; "xx"
representing hours, and "yy" representing minutes. Note that "xx" (hours) is flashing.
3. Press the ADV (advance) button repeatedly until the correct hour is displayed.
4. Press the D/D button once. Note that "yy" (minutes) is now flashing.
5. Press the ADV button repeatedly until the correct minute is displayed.
6. Press the D/D button. At this point, the Oxygen Saturation display field shows "dxx", with "d" representing
date; "xx" representing the month and "yy" representing the date. Note that "xx" (month) is flashing.
7. Press the ADV button repeatedly until the correct month is displayed.
8. Press the D/D button once. Note that "yy" (date) is flashing.
9. Press the ADV button repeatedly until the correct date is displayed.
10. Press the D/D button. At this point, the Oxygen Saturation display field shows "Yxx", with "Y" representing
"year". Note that "xx" (year number) is flashing.
11. Press the ADV button repeatedly until the correct year number is displayed.
12. Press the D/D button once. The N-20P turns itself off within 5 seconds.
13. Date and time are now correct. Check by switching on the N-20P with the printer enabled. After the
N-20P executes its POST, the printer prints the spot check mode header with the correct date and time.
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