41356801TH Rev.1
100 /
4
Fusing unit error (ERROR 71) (ERROR 72) (ERROR 73)
• Turn the power off, then back on again.
• Yes
Is the thermistor open or shorted? Measure the resistance between thermistor contacts (heater
contacts 120V/3
Ω
or 240V/10
Ω
, and thermistor contacts 200K
Ω
at room temperature) (see
Figure 6-2 or Section 7.3).
• Yes Replace the fusing unit.
• No
Do the thermistor contacts touch the contact assembly properly when the fusing unit is
mounted in the printer?
• No
Adjust the contacts of the contact assembly.
• Yes
Is the heater of the fusing unit turned on (when the heater is turned on, light is emitted)?
• Yes
Check the thermistor contacts or replace the main control board or the fusing unit.
• No
Is the AC voltage being supplied to the connector for the heater of the power supply board?
(see Figure 6-2)
• No
Replace the main control board or the power supply/sensor board.
• Yes
Check the heat contacts of the fusing unit and the contact assembly for poor contact
(see Figure 6-4 contact
G
).
Heater connector
Thermistor contacts
Figure 6-2
Содержание OKIPAGE 14
Страница 1: ...41356801TH Rev 1 1 209 OKIPAGE 14i LED Page Printer Maintenance Manual Rev 1 2000 09 21 ODA OEL INT ...
Страница 46: ...41356801TH Rev 1 46 Upper cover unit Figure 3 2 Upper cover ...
Страница 112: ...41356801TH Rev 1 112 Figure 6 5 Contact Power supply sensor board Contact plate for transfer roller ...
Страница 115: ...41356801TH Rev 1 115 2 Power Supply Sensor Board CN2 CN3 CN4 CN1 SW1 F1 PS1 PS2 PS3 PS4 SW2 PS6 PS5 ...
Страница 125: ...41356801TH Rev 1 125 Unit Fan Circuit Diagram Illustration Resistance Red Black 30 V 1 FANALM N 3 0 V 2 M ...
Страница 129: ...41356801TH Rev 1 129 Figure 8 2 Upper cover unit 1 ...
Страница 130: ...41356801TH Rev 1 130 Table 8 2 Upper cover unit No Name Rating Part No Use Remarks ODA Part No Cover Upper 1 1 40715101 ...
Страница 174: ...41356801TH Rev 1 174 5 2 PCB Layout OLEV 11 PCB CN3 CN2 SEN2 ...
Страница 175: ...41356801TH Rev 1 175 6 PARTS LIST Figure 6 1 Multi Purpose Feeder 9 5 7 6 4 1 2 3 8 ...
Страница 190: ...41356801TH Rev 1 190 CONTROLLER MOTOR DRIVER SEN2 SEN1 OSC PU MOTOR 5 2 PCB Layout TQSB 2 PCB ...
Страница 191: ...41356801TH Rev 1 191 Figure 6 1 High Capacity Second Paper Feeder 1 2 4 3 5 6 PARTS LIST ...
Страница 194: ...41356801TH Rev 1 194 SECTION1 CABINET CASSETTE ASSEMBLY 5 6 3 2 4 7 8 1 iv iv i i ...
Страница 195: ...41356801TH Rev 1 195 SECTION2 MECHANICAL ASSEMBLY 21 9 11 10 12 13 23 22 14 24 iii ii 15 16 17 19 18 20 A A B B ...