Oki C910 Troubleshooting Manual
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Oki C910 Troubleshooting Manual

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C910 / C930

Troubleshooting Guide

Distributed at the Oki Data A3/C9 Service Training Classes.
Rev. 3.20
Troubleshooting Guide Page 1

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Summary of Contents for Oki C910

  • Page 1: Troubleshooting Guide

    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: System Maintenance Menu

    • This menu can be modified according to the destination, etc. Therefore, it is not Note open (closed) to the end user. • C910 needs password to enter the System Maintenance Menu. Default is "000000". Do not reset the OKIUSER Setting of the C930 Series. Caution Resetting OKIUSER resets settings made in it, including its model name and server name.
  • Page 4 Table 5-0. Maintenance Menu Display Table (2/2) Category Item Value Old Menu Function Valid Save Maintenance Format HDD Execute Initialize the HDD. When executed it SYSTEM Menu will escape from the menu and start MAINENANCE initializing the HDD. MENU — MAINTENANCE [Display Condition] MENU —...
  • Page 5 5.0.1 ID Check Pattern Print (“TEST PRINT MENU” Item) This pattern can be used to investigate the cause (plain identification of problem or check cycle of problem) resulting from the ID or LED head. CMYK are each composed of a 20% duty pattern. (printing 2 sheets) Test Pattern Print Procedure : (Switch pressing order) : “0”...
  • Page 6 Maintenance Menu Category Item (1st Line) Function Value (2nd Line) MAINTENANCE MENU EEPROM Reset the EEPROM of the CU. EXECUTE Reset SAVE MENU Setting Save the current menu settings. EXECUTE An ARE YOU SURE? YES/NO selection message appears. RESTORE MENU Modify the setting to the menu set- EXECUTE ting saved.
  • Page 7 5.1.2 Engine Maintenance Mode Engine 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 prerequisite. Troubleshooting Guide Page 7...

  • Page 8: Diagnostic Mode

    5.1.2.2 Regular Self-Diagnosis Mode (Level 1) The Regular Self-Diagnosis Mode menu is as follows. • Switch Scan Test • Motor and Clutch Test • Execute Test Pattern • Initialize NVM • Consumable Counter Display • Consumable Continual Counter Display 5.1.2.2.1 How to Enter Self-Diagnosis Mode (Level 1) Press the [MENU+], [MENU-] and [HELP] keys at the same time when turning ON the power to go to the System Maintenance Mode.

  • Page 9: Switch Scan

    5.1.2.3 Switch Scan Test This self-diagnosis is sued to check the input sensor and switch. SWITCH SCAN Keep the [MENU+] and [MENU-] keys pressed until [SWITCH SCAN] appears at the top of the display and operations goes into the regular diagnosis mode. (The [MENU+] key = Increment Test Item / the [MENU-] key = Decrement Test Item.) The following message appears by pressing [ENTER] SWITCH SCAN...
  • Page 10 Troubleshooting Guide Page 10...
  • Page 11 Table 5-1-1 Switch Scan Details Top of the Display Detail Display Detail Display Detail Display Detail Display PAPER ROUTE IN1 Sns H:OFF IN2 Sns H:OFF WR Sns H:OFF Exit Sns H:OFF : PU L:ON L:ON L:ON L:ON PAPER ROUTE IN1 Sns H:OFF IN2 Sns H:OFF...
  • Page 12 Top of the Display Detail Display Detail Display Detail Display Detail Display Dup-Stack Sns Port Level Dup-Cover Port Level STACK_COVER H, L Open Sns H, L FIN S01_S02_ Uper Cover Sns H:OPEN Front door Sns H:OPEN Front door SW H:OPEN Joint SW [MS1] H:OPEN S03_S04...

  • Page 13: Motor & Clutch Test

    5.1.2.4 Motor/Clutch Test This self-diagnosis routine is used to test the motor and clutch. Continue to press the [MENU+] and [MENU-] keys until “MOTOR & CLUTCH TEST” appears at the top of the display and the operation enters the self-diagnosis (Level 1) mode.
  • Page 14 Troubleshooting Guide Page 14...
  • Page 15 Table 5-2 Motor and Clutch Test Unit Name Display Drive Limitation Remarks Error display K-ID MOTOR Y-ID MOTOR M-ID MOTOR C-ID MOTOR BELT MOTOR FUSER MOTOR FUSER RLS REGIST MOTOR REGIST CLUTCH MPT MOTOR MPT LIFT UP EXIT SOLENOID FACEDOWN SOLENOID REGISTRATION SHUTTER JOB OFFSET TRAY1 MOTOR...
  • Page 16 Unit Name Display Drive Limitation Remarks Error display FIN SHIFT MOTOR Finisher is installed. OPTION FIN STAPLE EXEC Finisher is installed. OPTION FIN SADDLE EXEC Finisher is installed. OPTION FIN SADDLE TRANSFER Finisher is installed. OPTION FIN SADDLE CLUTCH Finisher is installed. OPTION FIN PUNCH HOLE Finisher is installed.
  • Page 17 Sensor Paper-Related Sensor Stacker Full FD sensor IN2 sensor Stacker Full Job-off sensor MPT Hopping sensor FU sensor C drum M drum Y drum K drum MPT PE sensor Drive roller Drive roller Dup-in sensor Exit sensor Looseness sensor WR sensor Conveyor belt Density / color gap sensor MPT home sensor...
  • Page 18 Other Sensors Paper Empty Sensor This sensor checks whether the paper cassette is empty or not. Paper Near-End Sensor This sensor checks whether the paper cassette will be empty soon or not. MBF Paper Empty Sensor This sensor checks whether there is paper in the front feeder. MBF Hopping Switch This micro-switch checks whether the front feeder table is in the UP position or DOWN position.

  • Page 19: Test Pattern

    5.1.2.5 Test Print This self-diagnostic routine is used to print the test pattern in the PU. Other test patterns are stored in the controller. Continue to press the [MENU+] and [MENU-] keys until “TEST PRINT” appears at the top row of the display, and the system is in the self-diagnosis (Lever 1) mode. The [MENU+] key = Increment Test Item / the [MENU-] key = Decrement Test Item.
  • Page 20 * COLOR Setting Note When COLOR is on, if [ONLINE] is pressed, the settings below will appear and the print color-setting mode will be entered. COLOR Y:ON M:ON C:ON K:ON Press [ENTER] to move the cursor to the color to be turned on or off. Press [MENU+] or [MENU-] to turn the setting of each color on or off, respectively[OK to add?].
  • Page 21 Print Test Pattern Pattern No. Print pattern None (blank page) 2 by 2 4 by 4 Horizontal line Slanted line Vertical line Vertical band Full Pattern 1 Pattern 2 Pattern 3 Pattern 5 Pattern 6 Pattern 4 Pattern 7 Troubleshooting Guide Page 21...
  • Page 22 • The following message appears when printing. P=*** T=*** U=*** [###] H=***% L=***[###] P: Test Print Sheets (Unit: number of sheets) U: Upper-side Heater temperature Measurement Value[Setting] (Unit: °C) L: Lower-Side Heater temperature Measurement Value[Setting] (Unit: °C) T: Environmental Temperature Measurement Value (Unit: %) H: Environmental Humidity Measurement Value (Unit: %) •...
  • Page 23 7.5.1 LCD Message List When the printer detects errors that can be restored, it displays a service call error on the LCD, as shown below. Service Call nnn: Error Note nnn is an Error code. When a service call is displayed, the error code and accompanying error information is displayed on the bottom row of the LCD.
  • Page 24 Table 7-1-1 Operator Alarm (2/10) Display Cause Remedy Error Description and Analysis 1200 judgment ✓ Service Call CU PCB flash Failed to access flash Replace CU PCB 042: Error ROM error memory that is surface- (Must replace EEPROM) Flash File mounted on CU PCB.
  • Page 25 Table 7-1-1 Operator Alarm (3/10) Display Cause Remedy Error Description and Analysis 1200 judgment ✓ ✓ rvice Call When turning Does the Error take place Replace Engi ne Control PCB 103: Error again? (S2V) ON the power, detected Engine SRAM Read / Write Error.
  • Page 26 Table 7-1-1 Operator Alarm (4/10) Display Cause Remedy Error Description and Analysis 1200 judgment ✓ ✓ Service Call After turning ON 1) Is an Error message ICheck the OED head unit. 131: Y Head the power or displayed? Turn ON power again. 132: M Head when cover is 2) Is the LED head properly...
  • Page 27 Table 7-1-1 Operator Alarm (5/10) Display Cause Remedy Error Description and Analysis 1200 judgment ✓ ✓ Service Call Thermistor 1) Is an Error message Turn ON power again. 173: Error indicates Low displayed? 177: Error Temperature 2) Does the Error take place Leave in that state for 30 (COLD) Error.
  • Page 28 Table 7-1-1 Operator Alarm (6/10) Display Cause Remedy Error Description and Analysis 1200 judgment ✓ ✓ Service Call RFID Reader I/ An interface error was detected 01: Same action as for error 230 231: Error F Error with the RFID reader device. 02: Replace the RFID R/W 01: communication error between board.
  • Page 29 Table 7-1-1 Operator Alarm (7/10) Display Cause Remedy Error Description and Analysis 1200 judgment ✓ ✓ Reset the belt After turning ON 1) Is an Error message Check how the belt unit is 330: Belt Error the power or displayed? mounted.
  • Page 30 Table 7-1-1 Operator Alarm (8/10) Display Cause Remedy Error Description and Analysis 1200 judgment ✓ ✓ Open Front Paper jam in Check misfeed in the speci- Remove the misfed paper, Cover paper supply fied cassette. insert the cassette. 380: Paper from Cassette Check/replace Cassette 1, 2, 1, 2, 3, 4 or 5.
  • Page 31 Table 7-1-1 Operator Alarm (9/10) Display Cause Remedy Error Description and Analysis 1200 judgment ✓ ✓ Tray*Paper Paper Near-End Is the tray paper level low? Refill with paper. Almost Detection (less than about 30 sheets) Check Paper Near-End Finished Sensor ✓...
  • Page 32 Table 7-1-1 Operator Alarm (10/10) Display Cause Remedy Error Description and Analysis 1200 judgment ✓ ✓ Service Call Waste Toner The waste toner transfer Check to confirm that the Transfer Motor motor is not operating waste toner transfer system Lock Error properly.

  • Page 33: Replacement Part

    Repetitive Marks on Printout Distance Affected Roller Replacement Part between marks 3.71” Image Drum Replace 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”...

This manual is also suitable for:

C930

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