From on the preceding page A .
From on the preceding page B .
• Yes Replace the fuser unit.
▼
• Is the printer recovered?
▼
•
▼
• No
• No Replace the Main board.
YES END.
Is the heater or thermistor open?
Measure the resistance between the thermistor contacts, and between heater contacts (normal resistance: 220 kΩ (25°C) between pins 1 and 2, 1.5 Ω (120 V) and 5.8 Ω (240 V) between pins 3 and 4) (See Chapter 7.3.)
• Yes Replace the fuser unit.
▼
• No Is the AC voltage applied to the CN2 connector on the Power Supply Unit (AC120V or 230V)? (See Figure
• No Is CN2 connector connected to the Power Supply Unit (AC120V or 230V)?
• No Connect the CN2 connector to the Power Supply Unit (AC120V or 230V) properly.
▼
• Yes Is Pin 6 (HEAT ON signal) of the POWER connector of the Main board turned on? (In heater on state, this pin is set to 0 V).
• No Replace the Main board.
▼
• Yes Replace the Power Supply Unit (High Voltage).
▼
• YES Go to B .
40930701TH DRAFT Vesion | 149 / |
