sc ricoh aficio 1018d

Model K-C1(Machine Code: B039/B040/B043)

SERVICE MANUAL

February 20th, 2001Subject to change

20 February, 2001 SERVICE CALL CONDITIONS

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4. TROUBLESHOOTING

4.1 SERVICE CALL CONDITIONS

4.1.1 SUMMARY

There are 2 levels of service call conditions.

Level Definition Reset Procedure

A

To prevent the machine from beingdamaged, the SC can only be reset by aservice representative.The copier cannot be operated at all.

Enter SP 5-810 (SC code reset) andselect “1”. Then hold down the Originaltype key and the OK or ! key at thesame time (this does not require themain switch to be turned off and on).

BThe SC can be reset by turning themain power switch off and on.

Turn the main power switch off and on.

NOTE: 1) If the problem concerns electrical circuit boards, first disconnect thenreconnect the connectors before replacing the PCBs.

2) If the problem concerns a motor lock, first check the mechanical loadbefore replacing motors or sensors.

SERVICE CALL CONDITIONS 20 February, 2001

4-2

4.1.2 SC CODE DESCRIPTIONS

No.Definition

Symptom Possible Cause

Exposure Lamp Error101 BThe standard white level was notdetected properly when scanning thewhite plate.

• Exposure lamp defective• Exposure lamp stabilizer defective• Exposure lamp connector defective• Dirty scanner mirror or scanner mirror

out of position• SBU board defective• SBU connector defective• Lens block out of position• Incorrect position or width of white

plate scanning (☛ SP4-015)Scanner home position error 1120 BThe scanner home position sensordoes not detect the off condition duringinitialization or copying.

• Scanner home position sensordefective

• Scanner drive motor defective• Scanner home position sensor

connector defective• Scanner drive motor connector

defective• IOB board defective

Scanner home position error 2121 BThe scanner home position sensordoes not detect the on condition duringinitialization or copying.





Scanner home position error 3122 BThe scanner home position sensordetects the on condition while thescanner is returning to the homeposition.





Scanner home position error 4123 BThe scanner home position sensordoes not detect the on condition afterthe scanner returns to the homeposition.





Ricoh Technical Services

SC123 RTB 1b: During faxing


RTB 12 SC 122 caused by misaligned scanner reflector


SC101 RTB 16


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No.Definition


Communication Error between BiCU and SBU130 BThe BiCU board cannot detect the SBUconnect signal.

• The flat cable between the BiCUboard and the SBU has a poorconnection

• The flat cable between the BiCUboard and the SBU damaged

• BiCU board defective• SBU defective

Automatic SBU adjustment error192 BDuring the automatic SBU adjustment,the machine detects that the white levelread from the white plate or paper isout of range. (☛ SP4-908)

• Exposure lamp defective• SBU auto adjustment was not done

correctly (☛ 3.13 Copy adjustmentprinting/scanning – Standard whitedensity adjustment)

• SBU defective• BiCU board defective• Exposure lamp stabilizer defective

SBU White Level Detection Error194 BThe automatic SBU adjustment failedtwenty times consecutively.

• Exposure lamp defective• Dirty white plate• Incorrect position or width of white

plate scanning (☛ SP4-015)• BiCU board defective• SBU board defective

Charge roller current leak302 BA current leak signal for the chargeroller is detected.

• Charge roller damaged• High voltage supply board defective• Poor connection of the PCU

Polygonal mirror motor error320 BThe polygon mirror motor does notreach operating speed within 10seconds after the motor ON signal issent, or does not turn on within one ofthe 200 ms check intervals duringoperation.

• Polygon mirror motor defective• Poor connection between the

polygonal mirror motor driver and theBiCU board

• Damaged cable between BiCU/IOBand polygonal mirror motor driver

• BiCU board defectiveNo laser writing signal (F-GATE) error321 BThe laser writing signal (F-GATE) failsto turn Low after the laser crosses 5mm on the drum surface from the laserwriting start position.

• BiCU board defective• IMB board defective• The fax controller or printer controller

has a poor connection• Fax controller or printer controller

defective


RTB 1h SC 194


SC302 RTB 27


4-4

No.Definition


Laser synchronization error322 BThe main scan synchronizationdetector board cannot detect the lasersynchronization signal for more than 5consecutive 100 ms intervals.

• Poor connection between the LD unitand the BICU board

• Damaged cable between BiCU andLD unit

• LD unit out of position• LD unit defective• BiCU board defective

TD sensor error390 BThe TD sensor outputs less than 0.2 Vor more than 4.0 V 10 timesconsecutively during copying.

• TD sensor abnormal• Poor connection of the PCU

Development bias leak391 BA development bias leak signal isdetected.

• Poor connection of the PCU• High voltage supply board defective

TD sensor initial setting error392 BTD sensor initial setting is notperformed correctly.

• ID sensor defective• No developer• Drum does not turn• Development roller does not turn• Poor connection of the PCU• The voltage is not applied to charge

rollerTransfer roller leak error 1401 BA current leak signal for the transferroller is detected.A current feedback signal for thetransfer roller is not detected.

• High voltage supply board defective• Poor connection of the PCU• Transfer/separation unit set

incorrectly• Transfer roller damaged

Transfer roller leak error 2402 BA current leak signal for the transferroller is detected.A current feedback signal for thetransfer roller is not detected.

• High voltage supply board defective• Poor connection of the PCU• Transfer/separation unit set

incorrectly• Transfer roller damaged

Main motor lock500 BA main motor lock signal is notdetected for more than 7 consecutivechecks (700 ms) after the main motorstarts to rotate, or the lock signal is notdetected for more than 7 consecutivechecks during rotation after the lastsignal.

• Too much load on the drivemechanism

• Main motor defective

Upper paper tray lift motor malfunction (optional paper tray units)503 CThe paper lift sensor fails to activatetwice continuously after the tray liftmotor has been on for 18 seconds.

• Paper lift sensor defective• Tray lift motor defective• Too much load on the drive

mechanism• Poor tray lift motor connection


SC392 RTB 1


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No.Definition


Lower paper tray lift motor malfunction (optional two-tray paper tray unit)504 BThe paper lift sensor fails to activatetwice continuously after the tray liftmotor has been on for 18 seconds.

• Paper lift sensor defective• Tray lift motor defective• Too much load on the drive

mechanism• Poor tray lift motor connection

Paper feed motor lock (optional paper tray units)506 BA motor lock signal is not detected formore than 1.5 s or the lock signal is notdetected for more than 1.0 s duringrotation.

• Paper feed motor defective• Too much load on the drive

mechanism

Fusing thermostat/thermistor open541 AThe fusing temperature detected by thethermistor is below 10°C for 5 secondsafter the main power switch is turnedon.

• Fusing thermostat defective or out ofposition

• Fusing thermistor defective or out ofposition

• Power supply board defectiveFusing temperature warm-up error542 AThe fusing temperature does not reach80°C within 30 seconds after the mainswitch is turned on.

• Fusing thermistor defective or out ofposition

• Fusing lamp open• Fusing thermostat open• Fusing thermofuse open• Power supply board defective

Fusing overheat error543 A

A fusing temperature of over 230°C isdetected for 1 second by the fusingthermistor.

• Fusing thermistor defective• Power supply board defective

Fusing low temperature error544 AA fusing temperature of lower than100°C is detected for 1 second by thefusing thermistor during operation orstand-by mode.

• Fusing lamp open• Fusing thermistor defective• Power supply board defective• Fusing thermistor open• Fusing thermostat open

Unstable fusing temperature546 AThe fusing temperature does not rise3 °C or more within 5 seconds after thefusing lamp has been on over 8seconds.

• Thermistor defective• Power supply unit defective

Zero cross signal malfunction547 BZero cross signals are not detectedwithin 5 seconds after the main powerswitch is turned on, or are not detectedwithin 1 second after operation begins.

• Power supply board defective• IOB defective• BiCU defective

Communication error between IOB and ADF620 BThe IOB does not receive a responsefrom the ADF main board for 4 secondsor more.

• Poor connection between the IOB andADF main board (DF connector)

• ADF main board defective

• IOB defective


'Paper tray motor' in the original manual was the incorrect part name.


4-6

No.Definition


Communication error between BiCU and fax controller691 BThe BiCU board cannot communicatewith the fax controller.

• Poor connection between the BiCUboard and the fax controller

• BiCU board defective• Fax controller defective

Communication error between BiCU and printer controller692 BThe BiCU board cannot communicatewith the printer controller.

• Poor connection between the BiCUboard and the printer controller.

• BiCU board defective• Printer controller defective

Fax firmware error695 BThe fax program cannot be started.(☛ Fax Service Manual)

• The fax firmware download has notbeen completed correctly. Try again.

ADF gate abnormal760 BThe ADF Gate signal line between theADF main board and the IOB isdisconnected.

• ADF main board defective• Input/output board defective• Poor connection (ADF Gate line)

between the ADF main board and theIOB.

Electrical total counter error900 BThe electrical total counter does notwork properly.

• NVRAM defective

Mechanical total counter901 BThe mechanical total counter does notwork properly.

• Mechanical total counter defective• IOB defective• Disconnected mechanical total

counterIMB memory controller error921 BA memory control job is not completedwithin a certain period.

• IMB defective• BiCU defective• Poor connection between IMB and

BiCUIMB DRAM error922 BThe machine detects a discrepancy inthe IMB DRAM write/read data duringits write/read test (done at power off/onand at recovery from low power ornight/off mode).

• IMB defective• BiCU defective• Poor connection between BiCU and

IMB

Optional DRAM error924 BThe machine detects a discrepancy inthe Optional DRAM write/read dataduring its write/read test (done at poweroff/on and at recovery from low poweror night/off mode).

• Non-supported DRAM connected• Poor connection between IMB and

optional DRAM• Optional DRAM defective• IMB defective• BiCU defective


SC922 RTB 1b


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No.Definition


IMB non-connected error925 BIMB is not connected. This SC onlyappears with B040 and B043 versionmachines.

• IMB is not connected• Poor connection between BiCU and

IMB• IMB defective• BiCU defective

Memory capacity error926 BThe machine detects a discrepancybetween the memory capacity detectedduring the memory check at power onand the check at recovery from lowpower or night/off mode.

• Poor connection between optionalDRAM and IMB

• Optional DRAM defective• IMB defective• BiCU defective

NVRAM error981 BThe machine detects a discrepancy inthe NVRAM write/read data whenattempting to save actual data to theNVRAM (i.e. during actual use).

• NVRAM defective• Poor connection between BiCU and

NVRAM• NVRAM is not connected• BiCU defective

Communication error between BICU and IOB990 BThe BiCU board cannot communicatewith the IOB.

• The connection between the BiCUboard and the IOB is poor.

• BiCU board defective• IOB defective

Program version error999 BAn incorrect type of main software wasdownloaded.

• The main software for anothermachine was downloaded to thismachine. Switch the machine off.Connect an IC card that has thecorrect firmware to the machine.Switch the machine on, and downloadthe firmware (see section 5.1.9).

ELECTRICAL COMPONENT DEFECTS 20 February, 2001

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4.2 ELECTRICAL COMPONENT DEFECTS

4.2.1 SENSORS

Component CN Condition Symptom

OpenThe Paper Jam message will appear whenevera copy is made (paper hasn't reached thesensor).

Registration

312-2(IOB)

ShortedThe Paper Jam message appears even if thereis no paper at the sensor.

OpenThe Paper Jam message will appear whenevera copy is made except for 1st and by-pass trayfeeding.

Relay

312-5(IOB)


OpenThe Paper End indicator lights when the 1stpaper tray is selected, even if there is paper inthe tray.

Upper Paper End

314-2(IOB)

Shorted

The Paper End indicator does not light whenthe 1st paper tray is selected, even if there is nopaper in the tray. The Paper Jam message willappear whenever a copy is made from the 1stpaper tray.

OpenThe Paper Jam message will appear whenevera copy is made from an optional paper tray unit.

VerticalTransport 316-2

(IOB)Shorted

The Paper Jam message appears even if thereis no paper at the sensor.

OpenThe Paper End indicator lights when the 2ndpaper tray is selected, even if there is paper inthe tray (B040/B043 models only).

Shorted

The Paper End indicator does not light whenthe 2nd paper tray is selected, even if there isno paper in the tray. The Paper Jam messagewill appear whenever a copy is made from the2nd paper tray (B040/B043 models only).

Lower Paper End

317-6(IOB)

Shorted

OpenThe Paper End indicator lights when the bypasstray is selected, even if there is paper in thetray.

By-pass PaperEnd

311-7(IOB)

Shorted

The Paper End indicator does not light whenthe bypass tray is selected, even if there is nopaper in the tray. The Paper Jam message willappear whenever a copy is made from thebypass tray.

OpenThe Paper Jam message will appear whenevera copy is made (paper hasn't reached thesensor).

Exit

331-2(IOB)


OpenToner Density 325-3(IOB) Shorted

SC390 is displayed.

OpenImage Density 326-2(IOB) Shorted

The toner density control process is changed(see the note below the table).


This part name was incorrect in the original manual. It is now correct.


This part name was incorrect in the original manual. It is now correct.

20 February, 2001 ELECTRICAL COMPONENT DEFECTS

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Component CN Condition SymptomOpenScanner H.P. 304-2

(IOB) ShortedSC120 is displayed.

OpenAPS and Auto Reduce/Enlarge do not functioncorrectly.

Platen Cover

304-5(IOB)

ShortedIf the Start button is pressed with the platencover or A(R)DF closed, �Cannot detect originalsize� is displayed.

OpenOriginal Width305-3,4(IOB) Shorted

The CPU cannot detect the original sizeproperly. APS and Auto Reduce/Enlarge do notfunction correctly.

OpenOriginal Length305-8,9(IOB) Shorted

The CPU cannot detect the original sizeproperly. APS and Auto Reduce/Enlarge do notfunction correctly.

OpenThe Paper Jam message will appear whenevera duplex copy is made (paper hasn't reachedthe sensor).

Duplex Entrance

222-2(DCB)



Duplex Exit

222-5(DCB)



Duplex Inverter

220-6(DCB)


NOTE: SC392 is activated when the CPU detects an ID sensor error duringdeveloper initialization (SP2-214). However, SC392 is not displayed on theLCD but simply logged in the SC log (SMC printout), unless the technicianexits SP Mode as soon as the "Error!!!" message is displayed.

4.2.2 SWITCHES

Component CN Condition SymptomOpenUpper Paper

Size3151,2,4(IOB) Shorted

The CPU cannot detect the proper paper size,and misfeeds may occur when a copy is madefrom the 1st paper tray.

OpenThe Cover Open indicator is lit even if thevertical transport door is closed.

VerticalTransport Door 316-5

(IOB)Shorted

The Cover Open indicator is not lit even if thevertical transport door is opened.

OpenLower PaperSize

317-1,2,4(IOB) Shorted

The CPU cannot detect the proper paper size,and misfeeds may occur when a copy is madefrom the 2nd paper tray.

By-pass PaperSize

311-1,2,4,5(IOB)

OpenThe CPU misdetects or is not able to detect thesize of the paper set in the bypass tray, causingpossible misfeeds when feeding from this tray.


In the original manual, this was listed as a sensor. It is in fact a switch.

BLOWN FUSE CONDITIONS 20 February, 2001

4-10

Component CN Condition Symptom

OpenThe Cover Open indicator is lit even if the rightdoor is closed.

Right Door331-5(IOB)

ShortedThe Cover Open indicator is not lit even if theright door is open.

OpenThe Cover Open indicator is lit even if doors areclosed.

Front/RightCover 328-1

(IOB)Shorted

The Cover Open indicator is not lit even if doorsare open.

Open The machine does not turn on.Main 281-3,4(PSU) Shorted The machine does not turn off.

4.3 BLOWN FUSE CONDITIONS

RatingFuse

120 V 220 � 240 VSymptom when turning on the main switch

Power Supply BoardFU1 15 A/125 V � No response.FU2 6.3 A/250 V 3.15 A/250 V No response.

FU3 2 A/125 V 2 A/250 VAnti-condensation/Tray Heater does not turnon.

FU4 4 A/125 V 4 A/250 VOptional peripheral(s) are detected but do notfunction.

FU5 4 A/125 V 4 A/250 VThe Cover Open indicator is lit then SC901 isdisplayed.

FU6 3.15 A/125 V 3.15 A/250 VLEDs are not lit and the LCD display does notfunction (backlight only).

4.4 LED DISPLAY

4.4.1 BiCU

Number Function

LED 1Monitors the +5 V line for the CPU and the surroundingcircuit.Usually, this LED is blinking.

LED 2Monitors the +5 V line.Usually, this LED is lit.

4.4.2 IOB

Number Function

LED301Monitors the connection between the IOB and the BiCU.Usually, this LED is blinking.

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