Controller board removal
Note: Back up the eSF solutions and settings before replacing the controller board. For more information, see
“Backing up eSF solutions and settings” on page 204.
CAUTION—SHOCK HAZARD: To avoid personal injury or printer damage after disconnecting the high-voltage
power cable from the controller board, always check that the HVPS connection was not loosened. Make this
check anytime you are working near the HVPS cable.
Warning—Potential Damage: Observe all ESD precautions while handling electrostatic discharge sensitive parts. See
Handling ESD‑sensitive parts on page 4‑1.
Warning—Potential Damage: Replace one of the following components, and perform a POR before replacing a
second component. Never replace both of the components without performing a POR after installing each one, or
the printer may be rendered inoperable:
• UICC
• Controller board
1 Remove the rear cover. See “Rear cover removal” on page 290.
2 If the printer has a wireless card, then disconnect the JSC1 cable from the controller board.
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Repair information
291
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