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OKI B4350 User Manual

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    							CONSUMABLES AND MAINTENANCE > 71
    5. Return the printer on line by pressing the Online button.
    GENERATING A CLEANING PAGE
    If the printed page shows signs of fading, streaking or erratic marks, the 
    problem may be cleared by generating a drum cleaning page as follows.
    B4100, B4250
    Using the printer Status Monitor
    1. Start the Status Monitor for the printer.
    2. Click on [Printer Setup] tab - [Printer Menu] button - [Test Print 
    tab] - [Cleaning] button.
    3. Open the manual feed tray and insert a sheet of letter size plain 
    paper between the paper guides, then click the [OK] button.
    4. The printer grips the paper and prints a cleaning page.
    5. If subsequent printing appears faded or uneven, try replacing the 
    toner cartridge.
    Using the Control button
    1. Press the Control button to take the printer off line.
    2. Open the manual feed tray and insert a sheet of letter size plain 
    paper between the paper guides.
    3. Press and hold down the Control button for at least five seconds.
    4. The printer grips the paper and prints a cleaning page.
    5. Return the printer on line by pressing the Control button.
    6. If subsequent printing appears faded or uneven, try replacing the 
    toner cartridge.
    B4350, B4350n
    1. Press the Online button to return the printer to off-line status.
    2. Open the manual feed tray and insert a sheet of letter size plain 
    paper between the paper guides.
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    							CONSUMABLES AND MAINTENANCE > 72
    3. Press the Menu button repeatedly until MAINTENANCE MENU 
    is displayed, then press the Select button.
    4. Press the Item button until CLEANING PAGE is displayed.
    5. Press the Select button.
    6. The printer grips the paper and prints a cleaning page.
    7. Return the printer on line by pressing the Online button.
    8. If subsequent printing appears faded or uneven, try replacing the 
    toner cartridge.
    CLEANING THE LED ARRAY
    Clean the LED array whenever a new toner cartridge is installed or if there 
    are faded vertical areas or light printing down a page.
    Wipe the LED array gently with the cleaning pad that came with the new 
    toner cartridge or use an anti-static cleaning pad that is generally available 
    for computer cleaning.
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    							TROUBLESHOOTING > 73
    TROUBLESHOOTING
    STATUS AND ERROR MESSAGES
    Your printer has been designed to give you helpful status feedback not 
    only during normal operation, but also if a printing problem occurs so that 
    you can take appropriate corrective action.
    B4100, B4250
    Both status and error messages are displayed in your chosen language in 
    the Status Monitor, error messages being accompanied by the appropriate 
    flashing of the Error indicator. You can set the Status Monitor to pop up 
    on your computer screen when an alert condition occurs from the 
    Preferences tab in the Status Monitor.
    B4350, B4350n
    The LCD on the printer operator panel provides the self-explanatory 
    status and error messages in your chosen language. The Ready indicator 
    goes out when an error message appears.
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    							TROUBLESHOOTING > 74
    PAPER JAMS
    Provided that you follow the recommendations in this guide on use of 
    print media, and you keep the media in good condition prior to use, your 
    printer should give years of reliable service. However, paper jams 
    occasionally do occur, and this section explains how to clear them quickly 
    and simply.
    Jams can occur due to paper misfeeding from a paper tray or at any point 
    on the paper path through the printer. When a jam occurs, the printer 
    immediately stops, and the operator panel informs you of the event. If 
    printing multiple pages (or copies), do not assume that having cleared an 
    obvious sheet that others will not also be stopped somewhere along the 
    path. These must also be removed in order to clear the jam fully and 
    restore normal operation.
    The printer may experience a paper jam in one of three areas. 
    > INPUT JAM - paper has failed to leave the selected feed tray and 
    enter the internal paper path of the printer. A typical message 
    indicates a paper jam and identifies the tray to check.
    > FEED JAM - paper has entered the printer but failed to reach the 
    exit. A typical message indicates a paper jam and advises you to 
    open the top cover for access.
    > EXIT JAM - paper has reached the exit but has failed to exit 
    completely from the printer. A typical message indicates an exit 
    jam and advises you to open the top cover for access.
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    							TROUBLESHOOTING > 75
    INPUT JAM
    1. Remove the paper tray from the printer.
    2. Remove any crumpled or folded paper.
    3. Remove any paper from the underside of the printer.
    4. Replace the paper tray. 
    After successful removal of any damaged or misfed paper, the printer 
    should continue printing.
    FEED JAM OR EXIT JAM
    1. Remove the tray and clear any misfed sheets as given above.
    2. Open the top cover.
    3. Carefully lift out the image drum, complete with the toner 
    cartridge. Be careful not to touch or scratch the green drum 
    surface.
    4. Remove any jammed sheets from the paper path.
    5. Re-install the image drum complete with toner cartridge, ensuring 
    that it correctly locates into the slots on each side of the printer.
    6. Close the top cover and press down to latch it closed.
    WARNING!
    The fuser area will be hot. This area is clearly marked. Do not touch it.
    CAUTION!
    Never expose the image drum unit to light for more than 5 minutes. Never 
    expose the image drum unit to direct sunlight. Always hold the image drum 
    unit by the ends or from the top. Never touch the surface of the green drum 
    inside the image drum unit.
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    							TROUBLESHOOTING > 76
    7. The printer will warm up and commence printing when ready. 
    The page lost through the jam will normally be reprinted.
    PRINT QUALITY PROBLEMS
    Before consulting a service representative regarding a print quality 
    problem, check the table below to see if there is a solution, or something 
    you might have overlooked.
    NOTE
    If the edge of the jammed paper protrudes (or can be seen) from the exit, 
    reinstall the image drum, close the top cover and switch the printer on. 
    Remove the jammed paper from the exit when the exit roller begins rotating 
    after a few seconds after switching on. However, if the jammed paper cannot 
    be removed, contact a service representative.
    SymptomProblemSolution
    Blank sheets printed. Image drum cartridge not 
    properly installed.Reinstall image drum cartridge.
    Empty or missing toner 
    cartridge.Install new toner cartridge.
    Entire page prints 
    faintly.Empty toner cartridge. 
    Pages get fainter when 
    toner is used up.Install new toner cartridge.
    LED array is dirty.Clean LED array.
    Page has grey 
    background.Static electricity, 
    generally from dry 
    environments, causes 
    toner to stick to 
    background.Change paper to a smoother laser bond or 
    use a humidifier.
    Page prints all black.Hardware problem.Contact service.
    Page has repetitive 
    marks.Damaged image drum 
    cartridge causes 
    repetitive marks every 
    1.6 inches (4.06 cm) due 
    to surface nicks and 
    scratches.Generate a cleaning page, repetitive marks 
    may be temporary.
    Oblong area of faint 
    print appears on each 
    page.Drop out caused by using 
    paper exposed to high 
    humidity.Change paper stocks, check paper storage 
    environment or use a dehumidifier; check 
    toner level.
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    							TROUBLESHOOTING > 77
    SOFTWARE PROBLEMS
    Your software (operating environment, applications and printer drivers) 
    controls the printing process. Make sure you have selected the right driver 
    Vertical white 
    streaking or faint 
    areas on page.Toner is low and does not 
    distribute properly, or the 
    drum is worn out.Replace toner cartridge. Check drum and 
    replace the drum, if necessary. Contact 
    service.
    LED array is dirty.Clean LED array.
    Vertical black lines. Hardware problem. Contact service.
    Fuzzy print.LED array is dirty.Clean LED array.
    Distorted print. Paper path, lamp 
    assembly, or fusing unit 
    problem.Generate cleaning page.
    Contact service.
    Faded print.Toner cartridge is not 
    correctly installed.
    To n e r  l o w.Install toner cartridge correctly.
    Replace toner cartridge.
    Smeared or blotched 
    print.Dirty rollers; toner 
    dropped inside printer or 
    image drum problem.Replace image drum and toner.
    Contact service.
    Printed page is light/
    blurred.Is toner low?Replace toner cartridge.
    Is paper meant for laser 
    printers?Use recommended paper.
    LED array is dirty.Clean LED array.
    Bold characters and 
    dark lines are 
    smeared.Toner is low. Install new toner cartridge.
    Print is darker than 
    usual.Darkness setting is too 
    high.Change darkness setting.
    Pages curl 
    excessively.Printing on wrong side of 
    paper.Turn paper over in tray. (Note arrow on 
    paper package). Install paper print side 
    down in tray.
    Moisture in paper. 
    Improper storage.Avoid storing paper in areas of excessive 
    temperature and humidity. Store paper in 
    protective wrapping.
    High humidity. Recommended operating humidity: 20-80%
    SymptomProblemSolution
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    							TROUBLESHOOTING > 78
    for use with your printer. See your software documentation for more 
    information.
    HARDWARE PROBLEMS
    SymptomProblemSolution
    Printing is garbled. Incorrect driver is 
    installed.Install an appropriate driver.
    Printer’s output is 
    below rated speed.Much of the printing 
    delays will be caused by 
    your application. 
    Sometimes purely text 
    documents will print 
    slowly depending on the 
    selected fonts and how 
    they are transferred to the 
    printer.For maximum speed, use text in your 
    document and use a printer resident font.
    Size of top margin 
    increases with each 
    page printed.Creeping text. Number of 
    lines per page in software 
    is not equal to number of 
    lines per page of printer.Many software packages assume 66 lines 
    per page, but your printer’s default is 64. 
    Adjust software accordingly, or set LINES 
    Per PAGE in the soft control panel to equal 
    lines per page in your software.
    SymptomProblemSolution
    Graphic image prints 
    partly on one page, 
    partly on the next.Insufficient printer 
    memory for this image at 
    this resolution.Change the resolution, reduce the image 
    size, or install more memory in your printer.
    When you try to print 
    nothing happens, but 
    printer indicates it is 
    ready to receive data.Configuration error.Check cable connection. If more than one 
    printer is available, make sure your printer 
    has been selected.
    Garbage prints. Incorrect cable 
    configuration. Also, see 
    Software Problems.Check cable configuration, continuity, and 
    length.
    Printer freezes or 
    displays error 
    message when 
    computer is rebooted.Booting the computer 
    while the printer is on 
    can cause a 
    communications error.Turn printer off before rebooting computer.
    Odors. Gases are given off by 
    forms or adhesives 
    passing through the hot 
    fusing unit.Make sure the forms you use can withstand 
    heating, and provide adequate ventilation.
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    							TROUBLESHOOTING > 79
    Printer is on but must 
    warm up before a job 
    is printed.Power Save mode is set 
    on to conserve energy. 
    The fuser must heat up 
    before you can begin 
    printing the next job.To eliminate warm up delay, change Power 
    Save setting
    SymptomProblemSolution
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    							INSTALLING OPTIONS > 80
    INSTALLING OPTIONS
    The following options are available for the B4250, B4350, and B4350n 
    only, to extend the performance of these printer models:
    > 10/100 BASE-TX Network Interface Card: to make the B4350 
    network compatible
    > 16MB, 32MB, 128MB, 256MB  RAM DIMM: to extend the main 
    memory of your printer and speed up the processing of large files
    > RS232 Board: to provide serial interface capability.  (Note: 
    cannot be used with the Network Interface card.
    > Second paper tray: to increase your printer’s paper handling 
    capacity by 500 sheets
    > PostScript  3 emulation DIMM: to add PostScript emulation to the 
    B4350 and B4350n. 
    INSTALLATION PROCEDURE
    To install any of the above options, follow the detailed installation sheet 
    that accompanies the option.
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