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Phaser 6280 Color Laser Printer Service Manual
General Troubleshooting
Electrical Noise
There is a variable pitch sound coming from the printer. Electrical noise can
be either noise in the electrical lines or static in electromagnetic
communications.
Initial Actions
■
Cycle printer power.
■
If the problem persists, follow the procedure below.
Troubleshooting Reference Table
Applicable Parts
Wiring and Plug/Jack Map References
■
Transfer Unit, PL4.1.1
■
HVPS, PL5.1.17
■
Print Cartridge (C/M/Y/K),
PL5.1.18-21
Troubleshooting Procedure Table
Step
Actions and Questions
Yes
No
1
Check external noise.
1. Are there other electrical appliances
within 3 meters from the printer?
2. Turn the electrical appliances Off or
relocate the printer at least 6 meters away
from other electrical appliances.
3. Does the error still occur?
Go to step 2.
Complete.
2
1. Check the AC ground.
2. Is the AC power supply outlet wired and
grounded appropriately?
Go to step 3.
Request the
client to fix
the AC power
supply outlet.
3
1. Reseat the Print Cartridges (page 8-10).
2. Reseat the Transfer Unit (page 8-8).
3. Does the electrical noise still occur?
Go to step 4.
Complete.
4
1. Check the Print Cartridges for stains or
debris.
2. Are the Print Cartridges dirty?
Clean the
Print
Cartridges.
Reseat the
HVPS
(page 8-61).
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