Troubleshooting
6 - 28
OKIPAGE 16n
Service Manual, P/N 59274401
4
Fuser unit error (ERROR 71), (ERROR 72), (ERROR 73)
•
Turn the power OFF/ON.
▼
•
Does a fuser unit error occur immediately?
•
Yes
Is the thermistor open or shorted?
Measure the resistance between thermistor contacts.
(About 220 k
Ω
at room temperature, 25
°
C)
(See chapter 7.3 for the measuring points.)
•
Yes
Replace the fuser unit.
▼
•
No
Does the thermistor contact touch the contact assembly properly
when the fuser unit is mounted in the printer? (See Fig. 6-5
F
.)
•
No
Adjust the thermistor contact so as to touch the contact assembly
properly.
▼
•
Yes
Does the heat-on signal appear at pin 31 (HEAT ON signal: 0 V in heater on
state) of the POWER connector on the Main board?
•
No
Replace the Main board.
▼
•
Yes
Replace the Power/sensor board.
▼
•
No
Does a fuser unit error occur after more than 90 seconds from the power-on?
•
No
Go to
A
▼
•
Yes
Turn the power OFF/ON.
•
Is the heater of the fuser unit turned on? (When the heater is turned on, heat is radiated.)
•
Yes
Does the thermistor contact touch the contact assembly properly
when the fuser unit is mounted in the printer? (See Fig. 6-5
F
.)
•
No
Adjust the thermistor contact so as to touch the contact assembly
properly.
▼
To on the next page
B
.
▼
To on the next page
A
.
A
B
Summary of Contents for Okipage 16n
Page 46: ...Parts Replacement 3 3 OKIPAGE 16n Service Manual P N 59274401 Figure 3 1 3 2 Parts Layout ...
Page 47: ...Parts Replacement 3 4 OKIPAGE 16n Service Manual P N 59274401 Figure 3 2 ...
Page 70: ...Parts Replacement 3 27 OKIPAGE 16n Service Manual P N 59274401 A 9 8 6 7 5 1 3 4 2 3 4 ...
Page 74: ...Parts Replacement 3 31 OKIPAGE 16n Service Manual P N 59274401 9 8 8 5 3 4 6 2 1 A 7 ...
Page 90: ...Parts Replacement 3 47 OKIPAGE 16n Service Manual P N 59274401 4 8 9 7 5 6 A 2 1 3 3 ...
Page 103: ...Adjustment 4 6 OKIPAGE 16n Service Manual P N 59274401 This page was intentionally left blank ...
Page 162: ...Troubleshooting 6 45 OKIPAGE 16n Service Manual P N 59274401 Figure 6 6 ...
Page 232: ...Multi Feeder C 21 OKIPAGE 16n Maintenance Service Manual P N 59274401 5 2 PCB Layout AOLE PCB ...
Page 238: ...OKIPAGE 16n Service Manual Part Number 59274401 Printed in the USA ...