Ricoh PRO C5200S Operating Instructions Troubleshooting: Tcru/Oru page 17

Code
412-03 Exposure potential: Vpl adjustment error (M)
412-04 Exposure potential: Vpl adjustment error (Y)
Error Procedure
Replace the photoconductor unit
(magenta) and the charge roller unit
(magenta).
Replace the photoconductor unit (yellow)
and the charge roller unit (yellow).
SC Code List
15