Ricoh MP C6502SP Field Service Manual page 1139

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Table of Contents

Error Name/Error Condition/Major Cause/Solution

Zero Cross Error (Relay contact welded)

When this error occurs, machine stops with fusing relay off and displays

• Fusing relay defective (contact welded)

• Fusing relay drive circuit defective

• Turn the main power off/on.

• If the fusing relay is damaged, replace the AC control board.

• Check the connection between the AC control board and the FSB

(fusing IOB) and replace the harness and/or circuit board if

Error Name/Error Condition/Major Cause/Solution

Zero Cross Error (Relay contact defective)

When this error occurs, the fusing heater trigger turns off and then, after a

specified time, machine stops with fusing relay off and displays the SC.