OKI Data Infotech Corporation CONFIDENTIAL
Chapter 5 Troubleshooting (Engine Section and USB Controller Section)
5-154
5.5.60 System Error 4XXX and 5XXX: Firmware Internal Error
<Description>
A firmware internal error occurred.
<Faulty part>
(1) Firmware
(2) PCB-ASSY-IPB5-100
<Action>
Check the Items to be Checked on the table below, and perform the actions starting from the top
until the problem is solved.
Upgrade the firmware to the latest version.
Replace the PCB-ASSY-IPB5-100.