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Oki MC361 Service & Troubleshooting Manual

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MC361 / MC561 / CX2731MFP
Service & Troubleshooting Guide
© 2012 OkiData Americas, Inc.
Disclaimer
Every effort has been made to ensure that the information in this document is complete, accurate, and up to date. The
manufacturer assumes no responsibility for the results of errors beyond its control. While all reasonable efforts have been made
to make this document accurate and helpful as possible, we make no warranty of any kind, expressed or implied, as to the
accuracy or completeness of the information contained herein. For the most up-to-date service information available, visit our
website,
www.okidata.com
© Okidata Americas, Inc. 2012

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  Summary of Contents for Oki MC361

  • Page 1 MC361 / MC561 / CX2731MFP Service & Troubleshooting Guide © 2012 OkiData Americas, Inc. Disclaimer Every effort has been made to ensure that the information in this document is complete, accurate, and up to date. The manufacturer assumes no responsibility for the results of errors beyond its control. While all reasonable efforts have been made to make this document accurate and helpful as possible, we make no warranty of any kind, expressed or implied, as to the accuracy or completeness of the information contained herein.
  • Page 2: Table Of Contents

    Chapter 1 Maintenance Procedures – Printer / ADF / Scanner Exterior Cleaning Cleaning the LED lens array Cleaning the Paper Feed Rollers Cleaning the Paper Feed Rollers for MP Tray Cleaning inside the Printer Cleaning Rollers in the ADF Cleaning the Document Glass Chapter 2 Service Menus and Adjustments How to Enter the Service Menu...
  • Page 3 Chapter 1 Maintenance Procedures – Printer Exterior Cleaning Clean inside and outside of the printer with a clean dry cleaning cloth and small vacuum cleaner as required. Note! Be careful not to touch the image drum terminals, the LED lens array and the LED head connectors.
  • Page 4: Cleaning The Paper Feed Rollers

    Caution! Failure to proceed with caution may result in burn injury. The fuser unit gets very hot. Do not touch the surface of the fuser unit.  Wipe the lens surface (at the four positions) of the LED head with soft tissue paper gently and lightly.
  • Page 5 Cleaning the Paper Feed Rollers for MP Tray  Open the MP tray.  While pressing the tab of the paper feed roller cover to the right, open the cover.  Wipe the paper feed roller with a soft cloth lightly moistened with water. ...
  • Page 6: Cleaning Inside The Printer

    Cleaning inside the Printer Note! Don’t touch image drum terminals, LED lens array and LED head connector. Do not use benzin, thinner and alcohol.  Turn OFF the power of the MFP.  Lift the scanner. Then Press the top cover button and open the top cover. ...
  • Page 7: Cleaning Rollers In The Adf

     Remove the fuser unit from the MFP. Caution! Failure to proceed with caution may result in burn injury. The fuser unit gets very hot. Do not touch the surface of the fuser unit.  Release two fuser unit lock levers (blue) in the direction shown by the arrows. ...
  • Page 8: Cleaning The Document Glass

     Wipe the document feeding rollers with a soft cloth lightly moistened with water. Wipe the whole surface of the roller and rubber pad while turning it with your hand. Note! Clean the entire surface of the rollers by rotating the roller by hand. Some types of rollers can rotate in one direction only.
  • Page 9: How To Enter Service Menu

    Chapter 2 Service Menus and Adjustments The service function is to be used for the purposes of MFP maintenance by the experienced maintenance/service engineer, and is not open to general users. The respective items of the service function are contained in the service menu. 2.1 How to Enter the Service Menu Enter the service menu by the following operation.
  • Page 10 Operation required to exit the Service Mode Screen In order to complete operations of the service menu, press the Back button until prompted. Highlight your selection using the arrow keypad and press OK. If any setting change requires reboot of the MFP and the [BACK] button is pressed, the MFP Note! will enter the normal operating condition after the MFP reboots.
  • Page 11 Service Maintenance Menu Structure is shown below. Menu Item 1 Item 2 Item 3 System OKIUSER Maintenance *MPS Mode: MPS. Not shown during maintenance Format SD Memory Execute Card *Shown only when an SD card is connected Format Flash Memory Execute Reset Admin Password Execute All Reset...
  • Page 12: System Maintenance

    Menu Item 1 Item 2 Item 3 Service Bit Maintenance Country Code *This menu not shown Line Test Tone Send Test on models with no fax. DP Send Test MF Send Test Modem Signal Send Test T.30 Monitor Execute Print Maintenance Personality IBM 5577 IBM PPR III XL...
  • Page 13: Panel Maintenance

    Test Print Menu Switches between displaying and not displaying the "ID Check" and "Engine Information" in the "Report" - "Print Report" category (default: DISABLE). If this item is set to "DISABLE," the "ID Check" and "Engine Information" will remain undisplayed at all times.
  • Page 14 Adjust Scan Position FBS – Side Reg. Value: +8 ~ -8 Default: 0 Adjust the starting read pixel position in the horizontal scanning direction during book scanning. Adjust in intervals of one step = 4/600 dpi (=0.17 mm). FBS – Front Edge Value: +30 ~ -30 Default: 0 During book scanning, add a value for the basic value (= 5 mm) when reading the...
  • Page 15 Adjust Mech. FB Drive Current Value: 1 ~ 140 Connect a panel or PC and set the electric current value of the scanner motor FB Keep Current Value: 1 ~ 140 ADF Drive Current Value: 1 ~ 140 ADF Keep Current Value: 1 ~ 140 Adjust CIS Adjust CIS...
  • Page 16 AFE Parameter Change AFE (IC) register settings Decimal number displayed, decimal number set. Maximum values vary with each register. → Enter the register [n] setting (n: 1 - 9). The current value is read and displayed on the panel. Settings values are changed, configuration and reading conducted, and the results read are displayed on the panel.
  • Page 17 Sensor Test Value: Should input wording ① ~⑤ be displayed in the right cell? → Display in the right cell the wording in parentheses in ① ~⑤ and the state of each sensor (H/L). Examples of this display are shown below: ①...
  • Page 18: Country Code

    Solenoid Test Value: Once Continuous After a short press of the button, intake for 2 seconds and then stop. After a long press of the button, intake for 2 seconds and stop for 3 seconds repeat Stop when the Stop button is pressed. Deemed successful at all times.
  • Page 19: Engine Diagnostic Mode (Self-Diagnostic)

    T.30 Monitor The unit keeps the last transmission log (Tx/Rx commands) on volatile memory, and print when select "Execute". If turn off the unit, the records will be lost. Personality IBM 5577 Values: Enable / Disable Values: Enable / Disable Default: Enable IBM PPR III XL EPSON FX...
  • Page 20 Level 1 Diagnostic Screens Exiting self-diagnostic mode When the is pressed from DIAGNOSTIC MODE (Window displaying/Factory state), the setting window will return. Press to exit Engine Diag Mode...
  • Page 21 Menu option switching Only while displayed as shown in a shaded area [XXXXX], the level of the self- diagnostic mode can be switched. is used to switch to the option in a non- shaded area [XXXXX]. Normal Operation Mode [2] and [*] held down LEVEL0- engine status SWITCH SCAN in combination (for...
  • Page 22 is used to select the option shown in a shaded area [XXXXX], and pressing executes the option. is used to switch to the option in a non-shaded area [XXXXX], and, after that, is used to select an option. A selected test is executed by pressing [6], and ended by pressing [4].
  • Page 23: Switch Scan Test

    The following is the normal self-diagnostic mode menu: Option Self Diagnostic Menu Adjustment Item 1 Switch scan test SWITCH SCAN Performs input sensor and switch checking. (See section 2.8.1) 2 Motor and clutch test MOTOR&CLTCH TEST Tests motor and clutch operation.
  • Page 24 3. Press the button. The switch scan test starts, the unit(s)’ name(s) and current status(es) being displayed. Operate the unit(s). Display information in the appropriate area(s) of the LCD display [the information varies depending on the sensor(s)]. 4. Press the button to restore the state for step 2.
  • Page 25 Switch Scan Test Lower display shows asterisk (*) when function on upper display is unavailable Upper Display Lower Lower Lower Lower Detail Detail Detail Detail Display Display Display Display H: No paper H: No paper H: No paper Entrance exists exists PAPER ROUTE : PU exists...
  • Page 26: Motor & Clutch Test

    2.8.2 Motor & Clutch Test The motor and clutch test is used for motor and clutch testing. 1. Enter the self-diagnostic mode (level 1) and, until MOTOR & CLUTCH TEST appears on the upper display, press [8] ([2] displays the next test option and displays the preceding test option).
  • Page 27: Test Print

    Motor & Clutch Restrictions Unit name displayed Driving restriction Remarks All of the (black, yellow, ID MOTOR magenta and cyan) image drums – must be removed. All of the (black, yellow, BELT MOTOR magenta and cyan) image drums – must be removed. FUSER_MOTOR –...
  • Page 28 3. The setting option and its setting appear on the upper and lower displays, respectively. Pressing displays the next setting and pressing displays the preceding setting (the setting last displayed is applied. Press to accept the setting and return to step 2. Repeat step 3 when necessary. Display Setup Value Function...
  • Page 29 Panel Display Detail PAPER END SELECTED TRAY No paper exists. SELECTED TRAY IS NOT INSTALLED The selected tray is not installed. REMOVE PAPER OUT OF DUPLEX An internal error of the duplex unit. INSTALL CASSETTE TRAY OPEN A cassette is slid out. Print patterns (cannot be used for print quality checking) 0 and 8 to 15: Each prints a blank page.
  • Page 30 U: Three asterisks (***) identifies a measured upper heater temperature (in Celsius). Three sharp signs in square brackets ([###]) identifies a target print temperature (in Celsius). L: Three asterisks (***) identifies a measured lower heater temperature (in Celsius). Three sharp signs in square brackets ([###]) identifies a read lower thermistor AD value (in hex).
  • Page 31  The displays are switched pressing [2]. BELT: A belt motor constant-speed timer value (a set input/output value) (in hex). FRM: Three asterisks in square brackets ([***]) identifies a read frame thermistor AD value (in hex). Three cross signs in brackets ((xxx)) identifies a frame temperature (in Celsius).
  • Page 32: Color Registration Adjustment Test

    2.8.4 Color Registration Adjustment Test The color registration adjustment test is used for adjusting color registration or investigating the causes of color misregistration. 1. Enter the self-diagnostic mode and, until the following message appears, press or [8]. 2. Press the button and the following message appears.
  • Page 33: Density Adjustment Test

    When is executed: BLT REFLECT TEST a. A color registration adjustment belt reflection test starts (the ONLINE lamp starts blinking). b. When the test ends, the upper display shows the result of the test (OK or an error name), the lower display shows ****RESULT. Pressing displays the next test result.
  • Page 34 2. Press the button and the following message appears. Press until a target option appears. 3. Press the button, and the displayed test option is performed: When is executed: DENS ADJ EXECUTE a. A density adjustment test starts (the ONLINE lamp starts blinking). b.
  • Page 35: Consumable Counter Display

    4. Repeat step 3 when necessary. 5. Press to end the test (the state for step 1 is restored). Density adjustment test items Display Detail DENS ADJ EXECUTE Executes density adjustment. DENS ADJ PAR-SET Sets a control value for auto density adjustment. DENS ADJ RESULT Displays the result of density adjustment.
  • Page 36: Print Counter Display

    Upper Display Lower Display Format Unit Detail K OVER RIDE ********TIMES Decimal Times Each displays the extension life count of a toner cartridge. Y OVER RIDE ********TIMES Decimal Times M OVER RIDE ********TIMES Decimal Times C OVER RIDE ********TIMES Decimal Times 2.8.7 Print counter display The print counter display is used for viewing print counter values.
  • Page 37: Self-Diagnostic Function Setup

    4. Hold down the button (for three seconds) with the display showing the setting to set. The setting is stored in the EEPROM. The state for step 2 is restored. 5. Repeat steps 2 through 4 when necessary. 6. Press to end the option (the state for step 1 is restored).
  • Page 38: Fuse Checking

    Default is in shaded area 2.8.10 LED Head Serial Number Display Not used for servicing the MFP at this time. 2.8.11 Fuse Checking MC561/MC361/MC351 Fuse Errors Fuse Name Error Description Insert Point Resistance CU/PU board...
  • Page 39: Troubleshooting Print Quality

    Fuse Name Error Description Insert Point Resistance SU board (MHC) No display on the SU, FAX, OPE operator panel No display on the SU, OPE operator panel Lamp Error 1 Ω or less F501 Carriage Error FB/ADF Motor F502 Lamp Error Clutch, Solenoid, F503 No display on the...
  • Page 40: Using New Consumable Units For Testing Purposes

    printer’s Troubleshooting Print-Quality Problems pages or a specific print-quality troubleshooting procedure for more information. Imaging Unit  Streaks in Process Direction (in the direction of feed, parallel with paper travel)  Banding in Scan Direction (across the page, perpendicular to paper travel) ...
  • Page 41: Print-Quality Troubleshooting

    Repeating Defects Spacing Component Defect Spacing Defect Location Imaging Drum 94.3 mm Imaging Unit Developer Roller 30.2 mm Imaging Unit Charge Roller 29.9 mm Imaging Unit Supply Roller 43.1 mm Imaging Unit Fuser Belt 94.2 mm Fuser Heat Roller 85.4 mm Fuser Transfer Roller 37.7 mm...
  • Page 42 Light Prints in Only One Color Only one color; yellow, magenta, cyan, or black, is too light on the printed image. Initial Actions to Perform ■ Perform Initial Actions from Maintenance Procedures in Chapter ■ Print the ID Check Pattern (Setting - Reports –...
  • Page 43 Troubleshooting Steps Resolution 1. Print a 100% Solid Fill Test Print. Is the entire test print blank? Yes – Go to Step 2 No - Have the customer check there application and printer settings. 2. Remove the Toner Cartridge and check for toner starvation inside the Imaging Unit. Is Yes –...
  • Page 44: Troubleshooting Steps

    Unexpected Colors The colors produced by the printer are dramatically different from the color expected. Initial Actions to Perform ■ Perform Initial Actions from Maintenance Procedures in Chapter ■ Verify the media used is supported by this printer. ■ Verify the media settings are correct at the Control Panel.
  • Page 45 Initial Actions to Perform ■ Perform Initial Actions from Maintenance Procedures in Chapter ■ Verify the media used is supported by this printer. ■ Verify the media settings are correct at the Control Panel. ■ Print the ID Check Pattern (Setting - Reports –...
  • Page 46: Troubleshooting Paper Feed

    Troubleshooting Steps Resolution 1. Cycle power to the printer. Did this correct the problem? Yes – Complete No - Go to Step 2. 2. Process Direction: Remove the Imaging Units and Transfer Unit. Inspect the Color Yes – Go to Step 3. Registration Sensors for dirt, debris or toner build-up.
  • Page 47 4.1.1 Printing Process Paper path through printer Tray 1 and MPT Paper Feed...
  • Page 48 Transport Path Sensors Location Reference Sensor Feed (front cover jam) IN2, WR Transport (paper feed jam) IN1, IN2, WR, EXIT Exit (paper reject jam) EXIT Tray1 (paper feed jam) Paper size error (paper size error) Paper Exit – Face-Down Stacker Paper Exit –...
  • Page 49 Code Number Jam Location Duplex entry Around Fuser Unit Feed error at front feeder Tray1 Tray2 Paper size error Diagram showing paper detection sensors in the RADF The RADF detects a jam using the sensors shown above. Document jam check Note! timings are stored in the ROM on the Main PCB to check whether a jam has occurred according to presence/absence of the document at the relevant sensor position.
  • Page 50: Jam Removal Procedure

    4.1.2 Jam Removal Procedure Error Code 370, 371 1. Remove any paper from the document trays. 2. Open the scanner unit. 3. Press the top cover open button and open the top cover. Touch any screw inside the machine to remove static electricity from Important! your body.
  • Page 51 Error Code 372 1. Remove any paper from the document trays. 2. Open the scanner unit. 3. Press the top cover open button and open the top cover. Touch any screw inside the machine to remove static electricity from Important! your body.
  • Page 52 Error Code 380, 390 1. Remove any paper from the document trays. 2. Remove any paper in the MP tray. 3. Open the scanner unit. 4. Press the top cover open button and open the top cover. Touch any screw inside the machine to remove static electricity from Important! your body.
  • Page 53 Error Code 381, 382, 385 1. Remove any paper from the document trays. 2. Open the scanner unit. 3. Press the top cover open button and open the top cover. Touch any screw inside the machine to remove static electricity from Important! your body.
  • Page 54 Error Code 389 1. Remove any paper from the document trays. 2. Open the scanner unit. 3. Press the top cover open button and open the top cover. Touch any screw inside the machine to remove static electricity from Important! your body.
  • Page 55 Error Code 391, 392 1. Remove Cassette 2. Remove Paper Document Jam (Duplex Path) 1. Open ADF cover to remove paper Document Jam (ADF) 1. Open ADF cover 2. Remove paper by top edge 3. Check under paper guide 4. Check under document tray...
  • Page 56: Self Diagnostic Error Codes

    Chapter 5 Troubleshooting Error Codes Troubleshooting Self Diagnostic Codes Self Diagnostic Error Codes Cause/Description Remedy Code Machine Check Exception A hardware error was detected (board failure or insufficient power Replace the CU/PU board. supply capacity). Remove any RAM DIMM and turn off and on the MFP. CPU Exception Replace the CU/ PU board.
  • Page 57 Cause/Description Remedy Code Change the PC to a high-specification one or decrease the resolution, and perform printing again. Video error Reinstall the printer driver. An error was detected in expanding image data (an invalid data Perform printing again. was received) Print other data.
  • Page 58 Cause/Description Remedy Code Clean the connection connector of the fuser unit, and then re-install the Fuser unit fuse-cut error fuser unit. Is the fuser unit installed properly? Turn off and on the MFP. Be sure of cable connection, and then replace the CU/PU board. Toner sensor detection error 160=Y, Install the toner cartridge.
  • Page 59 Cause/Description Remedy Code 802 – 803 Turn off and on the MFP. SU Exception Replace the SU board. SU Communication Error Communication error between the Controller and the Scanner Unit is Turn off and on the MFP. 811 – 813 detected.

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