Engine startup error - sudden communication reset between controller and VBCU
7/29/2008
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SC 670
Engine startup error - VBCU defective
7/29/2008
Helpful
SC 670
Engine startup error - VBCU installation incorrect
7/29/2008
Helpful
SC 670
Engine startup error - LCT lift tray sensor was shorted
9/2/2008
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SC 670
Engine start up error. Check main power supply, cn 409 for 5volts
7/20/2009
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SC 670
Engine startup error - Replace laser unit and follow SP adjustments after laser unit replacement
4/5/2010
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SC 670
Engine startup error - IOB board defective
6/8/2010
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SC 670
Blown fuse 2 on VBCU due to shorted harness in registration motor harness
6/8/2010
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SC 670
Engine start up error - Check wiring for df feed in cover..
8/6/2010
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SC 670
Engine startup error - Replace finisher main board
10/26/2010
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SC 671
Controller mis-match error - Install correct controller b
THIS UNIT IS VERY HARD TO WORK ON YOU NEED A SERVICE CALL, GOOD LUCK! -Carl
SOURCE: ricoh rex rotary sc 548
Hello wajidsn
SC548 : "Fusing Installation Error.Fusing Unit Set Error"
SOURCE: I am getting an error code SC 534 on my Ricoh
The best I can find is that this is related to a malfunctioning cooling fan, I cannot find that specific code for your model, but all other 534 codes from that manufacturer are related to cooling fans
B010/B188 SC 534 Right fusing pressure motor HP error 1 - HP sensor defective
B010/B188 SC 534 Right fusing pressure motor HP error 1 - IOB defective
B010/B188 SC 534 Right fusing pressure motor HP error 1 - Motor defective
B010/B188 SC 534 Right fusing pressure motor HP error 1 - motor drive bound
B132/B200 SC 534 Duplex exhaust fan error - Paper exit fan motor M28 defective, indexed as 146, electrical component layout.
B132/B200 SC 534 Duplex exhaust fan error - check and or replace fusing exhaust fan / paper blocking fan
B132/B200 SC 534 Duplex exhaust fan error - replace duplex fan motors M29 or M30
B222/B224/G878 SC 534 2nd duct fan error - replace fan motor
B230/B237 SC 534 Fusing exit sensor fan error, BICU defective
B230/B237 SC 534 Fusing exit sensor fan error, Fan defective
D014/D015 SC 534 Duplex unit fan error - Fuser exhaust fan blocked or has paper in it.
D014/D015 SC 534 Duplex unit fan error - Duplex Unit fan obstructed
D014/D015 SC 534 Duplex unit fan error - Fan harness disconnected or damaged
D014/D015 SC 534 Duplex unit fan error - Fuser unit connector has paper obstruction
D014/D015 SC 534 Duplex unit fan error - Replace duplex fan
D023/D025 SC 534 Second duct fan error - replace the 2nd duct motor
D023/D025 SC 534 Second duct fan error - replace the IOB
D027/D029 SC 534 Second duct fan error - check connections and harness to fan
D027/D029 SC 534 Second duct fan error - replace fan motor
D037/D038/D041 SC 534 Fusing rear fan error: Check or replace harness
D037/D038/D041 SC 534 Fusing rear fan error: Replace BCU board
D037/D038/D041 SC 534 Fusing rear fan error: Replace fusing rear fan
D037/D038/D041 SC 534 Fusing rear fan error: Replace the DRB
SOURCE: Aficio 450 Copier: what is the meaning of sc 670 on 1035 machine...
DEFECTIVE BICU PWB OR DEFECTIVE CONTROLLER PWB THIS IS GOING TO BE EXPENSIVE 1000.00 OR MORE
SOURCE: how to decode Ricoh (Aficio)
In the service mode (clear modes 107 hold down clear/stop key) then punch in 7807 on the number pad then execute to reset the sc 670, if it doesn't clear you may have a bad controller board or HDD. Hope this helps
Video might not help but this problem is due to the charge spring arching on the back of pcu, suggested fix eould be to restore spring to its original condition and add conductive grease to the charge plate on tge rear of the pcu. Hope it helps
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