Ricoh Error Codes

Ricoh photocopier/printers error codes can be divided into three levels (A, B,C). The “A” level codes have high risk and involve the fusing unit problems. The machine operation is disabled. Only a service engineer should reset and repair this error. The B level errors are caused by one or more specific units. The machine operates as usual, excluding the related units. The C level errors have no effect on machine operation except to display a warning on the control panel. Error levels can be checked in service manuals under “troubleshooting” section.
SC543, SC545 codes:
SC543, SC545 are most common errors in Ricoh products. These errors indicate a problem in fixing temperature or thermistor. It is strongly recommended to call an authorized technician to reset and fix this problem because defected parts must be replaced/repaired before resetting these errors otherwise it may result in fire or other damages.

Error Code List:

Ricoh error codes are generally categorized into 9 categories. Each category starts with a unique number starting from 1 to9. A brief description is given below:

(a). 1xx Series (Scanning Related Problems)

SC 101	Exporsure Lamp error
SC107	Scanner Lamp Regulator Malfunction
SC120	Scanner Home position Error
SC121	Scanner home position error 2
SC 122	Scanner home position error 3
SC 123	Scanner home position error 4
Sc 124	Scanner Motor encoder signal error
SC 125	Scanner motor speed error1
SC 126	Scanner motor speed error2
SC 127	Scanner motor encoder rotating direction error
Sc 128	Scanner motor start error
SC 129	Scanner motor speed control error
Sc 130	SBU defective error/ Scanner start abnormal
SC 131	F-Gate Asserted during shading
SC 142	White level detection error
SC 143	SBU Auto adjust error
SC 144	SBU Connection error
SC 150	Scanner ROM Mismatch
SC 170	Scanner DA1 Abnormal/Video processing
SC 171	Scanner DA2 abnormal
SC 173	Scanner Lamp regulator adjustment error
SC 174	Scanner DA2 abnormal
SC 181	CIS Lamp abnormal
SC 183	CIS auto adjustment error
SC 184	CIS Transmission error
SC 191	Bar Code Scanning error
SC 192	Automated SBU adjustment error/Bar code number is different
SC 193	Image Transfer Error
SC 194	SBU White level detection
SC 195	DF Gate Assert error
SC 196	DF Gate Negate error
SC 197	DF Gate Error
SC 198	Memory card error
SC 199	DF Scanning finish error

Troubleshooting Tips:

SC101:Exposure Lamp error:

• Exposure Lamp defective
• Check exposure lamp connections and the stabilizer board.
• Dirty scanner mirror or scanner mirror out of positions.
• SBU board defective

SC143:SBU white/black level correction error:

• Exposure lamp defected.
• Dirty white plate.
• BICU Board defective

SC198:Memory address error:

• The firmware program of the engine and the controller do no match.
• Controller Board defective

(b) 2XX Series For Laser Unit Problems

Code	Possible Cause
SC201	Polygon Motor
SC220	Laser Sync Detect
SC221	Scan length detection
SC240	LD Power Supply Excessive
SC260	HP Sensor
SC261	HP Sensor not turning off
SC285	Line position Error

In some models (AF 2015 etc) 2xx error series does not exist.

(c) 3xx and 4xx Series Image Development Problems.

	SC320 Polygonal mirror motor SC322 Laser synchronization SC324 LD Drive current over SC325 Magnification Correction SC328 LD Unit Home Position Error2 SC330 LD Unit no initial setting SC343 Yellow Sleeve Motor Lock SC344 Magenta Sleeve Motor Lock SC364 Hard Disk Drive SC365 Image Storage Address Error SC366 Hard Disk Bad Sector Maximum SC371 Yellow TD Sensor Detection Error SC372 Cyan sensor Detection Error SC373 Magenta TD Sensor Detection Error SC401 Transfer Output Abnormal SC402 Transfer Roller Leak SC403 Transfer Belt Position Sensor SC405 Transfer Belt Position Abnormal SC420 Cleaning Motor Lock SC430 Quenching Lamp SC440 Main Motor Lock SC441 Development Motor Lock SC457 Image Transfer Belt Cleaning Unit Position Error SC460 Thermistor1 Temperature SC461 Thermistor2 SC490 Toner Supply Motor Leak Exhaust Fan Motor Lock Main Fan abnormal Transfer Bias Paper Attraction Roller Bias Leak

Troubleshooting Tips:

SC302:Charge Roller Current leakage

• Clean the machine well.
• Charge roller damaged.
• Poor connection of the PCU

SC392:Toner density sensor initial setting is not performed correctly.

• No developer
• Developing roller does not turn.
• Development roller coupling gear is not correctly attached.
• Poor connection of PCU
• ID sensor defective

SC402: Transfer roller lead error 2

• High voltage supply board defective
• Transfer/Separation unit set incorrectly
  Transfer roller damaged

(d) 5xx Series For Paper Feed and Fusing Problems

Code	Possible Causes
SC500	Main motor/transport motor lock/Fusing motor error
SC501	Drawer 1 lift motor malfunction
SC502	2nd or 1st tray lift motor malfunction
SC503	Drawer3(or 2nd) lift motor error
SC504	Drawer 4 or 3rd lift motor malfunction
SC505	LCC Tray malfunction
SC506	Paper tray motor lock
SC507	LCT main/feed motor lock
SC508	Rear fence drive motor
SC509	Drawer 3 LCT right fence error
SC510	LCT lower limit error
SC511	LCC motor lock
SC515	Drawer left guide drive motor error, Tandem rear fence motor error
SC516	Drawer 1 side guide motor error
SC520	Paper tray error/Duplexer jogger drive motor error
SC521	Duplexer jogger driver motor error 2
SC522	Duplex-Side fence jogger HP error
SC524	Duplex-End fence jogger HP error
SC530	Bypass feed motor lock/fusing fan motor error
SC531	Fuser/Duplexer reversing motor error
SC541	Fuser thermistor open/ Hot Roller thermistor open
SC542	Fuser Temperature warm-up error
SC543	Fuser overheat error1
SC544	Hot roller fusing lamp lower limit temperature detected
SC545	Fuser lamp overheat error 2
SC546	Fuser ready temperature malfunction
SC547	Zero cross signal malfunction/ Fusing temperature does not increase
SC548	Fusing installation error
SC550	Fusing web end
SC551	Pressure roller thermistor open
SC552	Pressure roller warm up error
SC553	Pressure roller overheat
SC554	Pressure roller low temperature abnormal
SC555	Pressure roller ready temperature abnormal
SC557	Pressure roller temperature does not increase
SC558	Zero cross signal abnormal
SC590	Exhaust/Fusing fan motor error/used toner collection motor error
SC591	Toner supply motor error
SC592	Toner bank motor error
SC599	Copy exit tray motor lock

Troubleshooting Tips:

SC500:Too much load on the drive mechanism

• Some gears or other rotating parting has been jammed.
• Developing unit is over toned.
• Main motor or its driving board is defective.

Before replacing motors or sensors, first check the mechanical load.

SC 541:Fusing thermistor open:

• Machine is plugged into low line voltage.
• Fixing thermistor is defective or out of position.
• Some loose connection
• Power Supply board defective

SC590:Left exhaust fan motor error

• Loose connection of the exhaust fan motor.
• Too much dust in the fan causing too much load on the motor driver.

(e) 6XX: Communication errors

Code	Possible Cause
SC600	Communication Error Between Main Control and Operation Panel Boards
SC634	Key/ Card Counter Device Error
SC636	Communication Error Between BICU & Paper Feed Control PWA
SC696	Communication Error Between Engine Boad and Finisher

Troubleshooting Tips:

SC621:ADF connection error

• An incorrect ADF is installed on the machines.
• The connector of the ADF is removed while the machine is in the energy save mode.

(f) 7XX: Peripherals Problems

Code	Possible Cause
SC700	RADF Original Pickup Malfunction
SC702	RADF Feed Motor Lock
SC703	RADF Transport Motor Lock
SC704	RADF Original Exit Motor Lock
SC705	RADF Bottom Plate Motor
SC721	Sorter Bin Motor
SC722	Finisher/Sorter Jogger Motor
SC727	Finisher Stapler Rotation error
SC728	Finisher paper stack height error
SC733	Finisher Lower Tray lift Motor
SC760	ADF Gate Abnormal
SC770	Display Editor Abnormal

Troubleshooting Tips:

SC700:ADF pickup problem

• Home sensor is defective
• ADF board or pickup roller mechanism is defective.

SC733:Finisher lower tray lift motor

• stack height sensor or lower tray limit sensor may cause this problem

(g) 8XX: Controller Errors

Code	Possible Cause
SC800	Startup Without Video output End
SC804	Startup Without Video Input End
SC818	Watchdog Error, Software Malfunction
SC819	Kernel Mismatch, Download Firmware again
SC820	Self Diagnostic Error,Download Firmware again
SC855	Wireless LAN card problem detected
SC857	USB Interface Error Detected
SC868	Incorrect Data is detected in the SD card
SC870	Address Book Data stored on the hard disk was abnormal

Troubleshooting Tips:

SC 826:Self diagnostic error:

NVRAM on the controller board is defective and must be replaced.

SC855:Wireless LAN card error

• Poor Connections between LAN card and the printer
• Defective controller board.
• Defective wireless LAN card.

Disclaimer:

Please note that this detail is just for information. Do not try to repair a machine if you are not a qualified technician. Technicians should also not take this information as a substitute of technician manuals.