background image

judgment

Yes

No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes
Yes

Yes
Yes

Yes
Yes

Yes
Yes

Yes
Yes

Cause

Paper Near-End
Detection

Cannot write to
HDD.

GDDC Error

Belt Slit Sensor
Error

Duplex FAN0
Alarm Detection

Duplex 24V
Abnormal Current
Detection

Yellow Image
Drum Lock Error

Magenta Image
Drum Lock
Error

Cyan Image
Drum Lock
Error

Black Image
Drum Lock
Error

Tray2 24V
Abnormal
Voltage Detec-
tion
Tray3 24V
Abnormal
Voltage Detec-
tion
Tray4 24V
Abnormal
Voltage Detec-
tion
Tray5 24V
Abnormal
Voltage Detec-
tion
Fuser Motor
Lock Error

Error Description and Analysis

Is the tray paper level low?
(less than about 30 sheets)

Is there any error in the
operational procedures?

910: Tray1 GDDC Error
911: Tray2 GDDC Error
912: Tray3 GDDC Error
913: Tray4 GDDC Error
914: Tray3 GDDC Error
The belt is not running
properly.
Does the error message still
appear after rebooting?
Error of the fan in the duplex
unit

Does the error still occur
after rebooting?
24 V of power is not supplied
to the duplex unit properly.

Does the error still occur
after rebooting?
The Y ID unit is not operat-
ing properly.
Does the error message still
appear after rebooting?
The M ID unit is not operat-
ing properly.
Does the error message still
appear after rebooting?
The C ID unit is not operat-
ing properly.
Does the error message still
appear after rebooting?
The K ID unit is not operat-
ing properly.
Does the error message still
appear after rebooting?
24 V of power is not supplied
to tray 2 properly.

24 V of power is not supplied
to tray 3 properly.

24 V power is not supplied to
tray 4 properly.

24 V of power is not supplied
to tray 5 properly.

The fuser is not operating
properly.
Does the error still occur?

Remedy

Refill with paper.
Check Paper Near-End
Sensor
Check the manual usage
procedures.
HDD malfunction.
Replace HDD.
Check to confirm that the
tray is mounted correctly.
Replace the geared motor of
the tray.

Check to confirm that the belt
is mounted correctly.
Replace the belt.

Check to confirm that the
duplex unit is mounted correctly.
Check the connection of the
fan.
Replace the fan.

Check to confirm that the
duplex unit is mounted correctly.
Check the connection of the
fan.
Replace the fan.

Check to confirm that the Y
ID unit is in position.
Replace the Y ID unit.
Replace the Y ID motor.
Check to confirm that the M
ID unit is in position.
Replace the M ID unit.
Replace the M ID motor.
Check to confirm that the C
ID unit is in position.
Replace the C ID unit.
Replace the C ID motor.
Check to confirm that the K
ID unit is in position.
Replace the K ID unit.
Replace the K ID motor.
Check to confirm that tray 2
is mounted correctly.

Check to confirm that tray 3
is mounted correctly.

Check to confirm that tray 4
is mounted correctly.

Check to confirm that tray 5
is mounted correctly.

Check to confirm that the
fuser is in position.
Replace the fuser.
Replace the fuser motor.

Display

Tray*Paper
Almost
Finished
Disc Operation
Error

Service Call
910: Error
 to
914: Error

Service Call
917

Service Call
918

Service Call
919

Service Call
920

Service Call
921

Service Call
922

Service Call
923

Service Call
924

Service Call
925

Service Call
926

Service Call
927

Service Call
928

600

1200

Table 7-1-1 Operator Alarm (9/10)

Troubleshooting Guide Page 31

Summary of Contents for C910

Page 1: ...C910 C930 Troubleshooting Guide Distributed at the Oki Data A3 C9 Service Training Classes Rev 3 20 Troubleshooting Guide Page 1...

Page 2: ...This Page Intentionally Left Blank Troubleshooting Guide Page 2...

Page 3: ...ENU OKIUSER OKIUSER Set the destination JPOEM1 Japan OEM OEMA A4 Default Overseas OEM OEML Letter Default Overseas OEM Automatically reboot after escaping from the menu The default value for non PS mo...

Page 4: ...reboots after the settings are made and applied Some of the PU network etc cannot be initialized Changes the default PDL language supported according to the destination The PDL language disabled from...

Page 5: ...pressing order HDD NO 0 0 3 3 HDD YES 0 0 0 3 3 Vertical Black White Lines Vertical Black White Lines Vertical Black White Band Vertical Black White Band Horizontal Black White Lines Horitzontal Blac...

Page 6: ...ust in the printouts Decrement this set ting if there is any scattering in high density printing or if there is snow like patterns in the printout Incre ment this setting if the printout ap pears whit...

Page 7: ...maintenance mode tests the basic operation of the print engine components 5 1 2 1 Operation Panel Instructions on self diagnosis operations is based on the following Operation Panel layout as a prere...

Page 8: ...the System Maintenance Mode 2 Press the MENU and MENU key until the DIAGNOSTIC MODE is displayed 3 Diagnostic Mode XX XX XX appears on the LCD panel The XX XX XX stands for the version of the ROM At...

Page 9: ...st from Table 5 1 1 appears at the top of the display Press the MENU and MENU keys The MENU key Increment Test Item the MENU key Decrement Test Item PAPER ROUTE PU 1 H 2 L 3 H 4 L 4 The test is starte...

Page 10: ...S 21 2 2ndLifter SNS 21 2 2ndLifter SNS 21 3 2ndFeed SNS 21 3 2ndFeed SNS 20 3 Cover Open 2nd SW 20 3 Cover Open 2nd SW 17 2 1stPaper Near END SNS 17 2 1stPaper Near END SNS 17 1 1stPaper END SNS 17 1...

Page 11: ...Toner Y Sns Cover Left Upper Stacker Full Sns Face up Aligment Right Sns Lower Center Thermister Temperture Sns TAG Y presence Y Drum Phase Sns Paper Slack Sns Disposal toner box Y Toner Supply Sns MP...

Page 12: ...home position outlet Sns PI7 Self prime Sns PI21 Stapler slide home position Sns PI18 Upper stack tray Sns PI15 Punch connect signal Outlet Sns FP2 Inverter connected Sns FP4 Waste Toner Box Hole IC P...

Page 13: ...start blinking Then the applicable unit will drive for 10 seconds After driving for 10 seconds it will return to State 2 The drive will start again by re pressing the applicable switch To drive the a...

Page 14: ...Y2 MOTOR TRAY2 GEARED MOTOR TRAY2 FEED MOTOR TRAY2 ROLLER CLUTCH REGIST MOTOR REGIST CLUTCH 2ndCLUTCH TRAY1 MOTOR MPT MOTOR FAN POWER DUP MOTOR 2 DUP MOTOR 1 EXIT SOLENOID REGISTRATION SHUTTER FAN FUS...

Page 15: ...AY 2 is installed TRAY 3 is installed TRAY 4 is installed TRAY 5 is installed TRAY 2 is installed and the cassette is not installed TRAY 2 is installed and the cassette is not installed TRAY 2 is inst...

Page 16: ...Y K TONER SUPPLY Y TONER SUPPLY KY TONER SUPPLY M TONER SUPPLY C TONER SUPPLY MC DISPOSAL TONER TUBE ID UP DOWN Drive Limitation Finisher is installed Finisher is installed Finisher is installed Finis...

Page 17: ...This detects the top of the paper entering and then determines the timing to switch from the hopping to the conveyor This detects the tip of the paper transferred then determines the length of the pa...

Page 18: ...9 RFID Sensor The radio communications of this sensor are carried out to IC tip built in the toner cartridge and it checks the existence of a toner cartridge and the toner residual quantity in a tone...

Page 19: ...INISHER 2 Setting value A 0 TRAY1 TRAY2 TRAY3 TRAY4 TRAY5 MPF 0 ON OFF 3 PAGES STACK OFF 1 PAGES STACK OFF ON OUTPUT BIN PUNCH OFFSET STAPLE STAPLE PAGE INVERT Function Press Enter to start printing o...

Page 20: ...r to be turned on or off Press MENU or MENU to turn the setting of each color on or off respectively OK to add Press BACK to exit the print color setting mode FINISHER Setting 1 When FINISHER is shown...

Page 21: ...n 3 Pattern 4 Pattern 7 Pattern 5 Pattern 6 Print Test Pattern Pattern No 0 1 2 3 4 5 6 7 Print pattern None blank page 2 by 2 4 by 4 Horizontal line Slanted line Vertical line Vertical band Full Trou...

Page 22: ...MENU key to switch the display YTR MTR CTR and KTR are image transfer voltage settings of each color Unit KV Press MENU key to switch the display YR MR CR and KR represent the electric current uA of t...

Page 23: ...lacing the applicable RAM DIMM Is this a standard RAM DIMM Is the applicable RAM DIMM difference mounted normal Is operation restored by replacing the applicable RAM DIMM Is this a standard RAM DIMM I...

Page 24: ...te not possible with EEPROM or Flash Is the error display reproducible Is the error display reproducible Does the Error take place again Remedy Replace CU PCB Must replace EEPROM 1 Replace Program ROM...

Page 25: ...again Sensor Dew Error Detected 1 Is the fuser cooling fan operating 2 Cooling fan is replaced but Error occurs again Error was detected in each fan 01 Fuser FAN Error 02 Power FAN Error 03 PU Motor...

Page 26: ...sage displayed 2 Does the Error take place again 1 Is an Error message displayed 2 Does the Error take place again 1 Is an Error message displayed 2 Does the Error take place again Remedy ICheck the O...

Page 27: ...medy Turn ON power again Leave in that state for 30 minutes then turn ON power again Assemble the proper fuser Check to see that the fuser is properly assemble Replace fuser Turn ON power again Replac...

Page 28: ...oes the Error take place again 1 Has any abnormal substance get mixed in with the sensor 2 Can the paper thickness detection be reset and restored by opening closing the tray 3 Is operation restored b...

Page 29: ...er replacing the belt Are operations restored by re inserting the Double Side Printer Unit Check paper jam in double side printer Check paper jam in double side printer Check misfeed in double side pr...

Page 30: ...normal 1 Check if the stacker is full 2 Check if the Stacker Full Sensor activator is normal 1 Check if MT is Out Of Paper 2 Check and see if the out of paper sensor activator is normal 1 Check and se...

Page 31: ...perly 24 V power is not supplied to tray 4 properly 24 V of power is not supplied to tray 5 properly The fuser is not operating properly Does the error still occur Remedy Refill with paper Check Paper...

Page 32: ...is not a standard official product The ASP PCB HDD program does not match the destina tion The ASP PCB EEPROM unmounted or EEPROM Error is detected Remedy Check to confirm that the waste toner transf...

Page 33: ...place image drum cartridge 2 50 Development Roller Replace image drum cartridge 2 27 Toner Supply Roller Replace image drum cartridge 1 73 Charge Roller Replace image drum cartridge 4 45 Fuser Roller...

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