I have a CP 3525 color printer and I installed 3 new fusers in this printer, and I still get error code 50.4 It takes about a week before the error shows up.
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Is the AC plugged into the wall outlet or a power strip?
Make sure it is plugged into the wall.
What is the media weight?
From the service manual.
50.4 FUSER ERROR The fuser driver circuit has experienced an
error.
1. Check the power source. If a power
generator is used, improve the situation.
NOTE: If the product does not meet
the power requirement of 43 to 67Hz
frequency, the fuser temperature control
does not work, which causes a
malfunction.
2. Reconnect connector (J101) on the DC
controller PCA.
3. If the problem persists, replace the lowvoltage
power supply. See Low-voltage
Rob S
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