Ricoh MP 7503SP Field Service Manual page 778

4. Replacement and Adjustment
• While you are doing the procedures below, never touch any component on the PSU,
especially a heat sink.
• These heat sinks are live and labeled with warnings not to touch them.
• These heat sinks can retain a considerable electrical charge for hours after the machine has
been turned off and unplugged.
4. As a safety precaution, disconnect the power cord from the main machine.
5. Disconnect the left rear corner plate.
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