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1. Before You Begin
If the machine will not print, does not print as expected, or exhibits any other
problem, find the problem in this manual and troubleshoot accordingly.
CAUTION
Before you replace any unit:
• To prevent electrical shock, turn off the color controller on the machine
control panel, switch off the operation power switch then the main power
switch, and then disconnect the machine from the power supply.
• Allow the machine to cool for at least 30 minutes before replacing a part.
1.1 Guide to Components
This section introduces the names of the components.
Refer to the following diagrams when replacing units or troubleshooting.
4
2
5
6
3
1
8
7
Y
M
C
K
CEZ591
1. Charge Roller (Black)
2. Cleaning unit for PCU (Black)
3. Drum unit (Black)
4. Transfer Unit
5. Cleaning unit for intermediate
transfer belt
6. Paper feed roller
7. Cleaning unit for fusing unit
8. Fusing unit
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