Oki ES5112dn Maintenance Manual page 36

Fuser unit Assy (Error 170) (Error 171) (Error 172) (Error 173)
• Is the thermistor connector inserted into the THERM connector of the
main board normally?
• No Insert the Thermistor connector correctly.
• Yes Is the heater connector normally inserted in the CN2 connector
of the low-voltage power.
• No Insert the heater connector appropriately.
• Yes Is the heater ON when turning on the power?
• No Replace the fuser unit Assy, low-voltage power or main
board.
• Yes Replace the fuser unti Assy or the main board.
Thermistor connector
Heat connector
Figure 2-1
Interface Error (Error 182)
• Is the Second Tray unit used?
• Yes Is the printer main body appropriately set on the Second
Tray unit?
• No Set the printer main body appropriately.
• Yes Replace the main board.
• Has the trouble been solved?
• No Check the trouble according to the maintenance
manual of the Second Tray unit .
• Yes Completed.
• No Replace the main board.
2. Procedures for Repairing
2-20