Brother International HL-3400CN Service Manual - Page 274

CHAPTER 8 TROUBLESHOOTING Service Call Message 88 WARNING P4 88 WARNING PS Meaning Countermeasure Duplex motor error See flow chart P4 described in the DX-3400 service manual. Outer pass select solenoid See flow chart P5 described in the error DX-3400 service manual. 88 WARNING P6 Optional fan error See flow chart P6 described in the DX-3400 service manual. 4.2 Engine Controller Mode Code Table 8-8 Description C3 NVRAM error (MCTL PWB) C4 Engine controller MCTL PWB hardware error C7 Process timing clock error (Main motor clock error) DI Clutch error of the yellow developing unit D2 Clutch error of the magenta developing unit D3 Clutch error of the cyan developing unit D4 Clutch error of the black developing unit D5 HPSI signal error (Retract error of black and yellow toner cartridge) D6 HPSI signal error (Retract error of cyan and magenta toner cartridge) El Developing motor error E2 Main motor error E3 Transfer drum rotational error E4 Toner sensor error E5 TR cam clutch error E6 Cleaner cam clutch error E7 Cleaner clutch error E8 Fuser clutch error E9 Belt sensor error 8-16