TM 5-6675-325-14
Table 3-4. DIRECT/GENERAL SUPPORT TROUBLESHOOTING - Cont
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. PAPER ERROR LIGHT COMES ON DURING PRINT CYCLE - Cont
Step 3.
Check temperature-sensing switch.
(a) Open left side door.
Pull turnaround out of reader-printer.
(b) Remove screws which attach thermal roller.
(c) Disconnect thermal roller harness.
(d) Slide thermal roller out of reader-printer.
(e) Remove insulation blanket.
(f) Using multimeter set on ohms range, check temperature-sensing
switch mounted next to adjustable temperature control thermo-
stat.
Use soldering iron to heat base of switch. If switch
closes, switch is operating correctly. Use pyrometer to verify
temperature. Switch should be open at temperatures below 260°F
(127°C) and closed above this temperature.
Replace temperature-sensing switch.
Step 4.
If all above steps fail to correct problem, replace logic board
(paragraph 3-20.1).
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