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Chapter 1 Troubleshooting
FIP-4 003-340/003-341/003-342/003-344/003-345/003-346/003-347/003-348/003-349/ 003-350/003-351 Restart Printer

If the error occurred after replacing the PWBA MCU, transfer the internal data of the

old PWBA to the new PWBA.

Possible causative parts:PWBA MCU (PL9.1.16)

PWBA HVPS (9.1.21)

Yes No
Does the error still
occur when turning on
the power?
Checking the connector connection
Reseat the following connectors.
-P/J16 and P/J191 on the PWBA MCU
-P/J141 on the PWBA HVPS
-P/J144 on the PWBA EEPROM STD
Checking after replacing
the PWBA HVPS
Replace the PWBA HVPS.
(RRP9.9)
END
Yes No
Does the error still
occur when turning on
the power?
Replace the PWBA
MCU. (RRP9.7) END