Lexmark E210 Service Manual - Page 31

All LEDs blinking Fuser Error at power up, LED blinks once then all other LEDs blink, Over Heat Error

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4510-001 All LEDs blinking (Fuser Error) at power up Step 1 2 3 4 5 All LEDs blink when attempting at power Yes No up Check the thermostat for continuity. Is there continuity? Go to step 2. Replace the thermostat. Check the lamp for continuity. Is there continuity? Go to step 3. Replace the lamp. Check the thermistor for wear. Is the thermistor worn? Replace the fuser. Go to step 4. Check for 110 V ac across the 2 pins of connector CN502 on the LVPS. Is 110 V ac present? Go to step 5. Replace LVPS. Check the fuser gears for wear or other damage. Is the gear damaged? Replace the fuser. Replace the main board. The LED blinks once then all other LEDs blink (Over Heat Error) This message is displayed when the printer detects the fuser is hotter than it should be via feedback through the fuser thermistor. Step 1 2 Yes Replace the fuser. Did Problem this resolve the problem? Resolved. Did LVPS replacement resolve the problem? Problem Resolved. No Replace the LVPS. Go to step 2. Replace the engine board. Diagnostic Aids 2-11

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Diagnostic Aids
2-11
4510-001
All LEDs blinking (Fuser Error) at power up
The
LED blinks once then all other LEDs blink
(Over Heat Error)
This message is displayed when the printer detects the fuser is
hotter than it should be via feedback through the fuser thermistor.
Step
All LEDs blink when
attempting at power
up
Yes
No
1
Check the thermostat
for continuity. Is there
continuity?
Go to step 2.
Replace the
thermostat.
2
Check the lamp for
continuity. Is there
continuity?
Go to step 3.
Replace the lamp.
3
Check the thermistor
for wear. Is the
thermistor worn?
Replace the fuser.
Go to step 4.
4
Check for 110 V ac
across the 2 pins of
connector CN502 on
the LVPS. Is 110 V ac
present?
Go to step 5.
Replace LVPS.
5
Check the fuser gears
for wear or other
damage. Is the gear
damaged?
Replace the fuser.
Replace the main
board.
Step
Yes
No
1
Replace the fuser. Did
this resolve the problem?
Problem
Resolved.
Replace the LVPS. Go
to step 2.
2
Did LVPS replacement
resolve the problem?
Problem
Resolved.
Replace the engine
board.