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Canon printer PIXMA MX850 User Manual

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    							127 Routine Maintenance
    3With a soft, clean, lint-free and dry cloth, wipe 
    off any paper dust from the inside of the 
    Document Feeder Cover (A).
    4After wiping, close the Document Feeder 
    Cover by pushing it until it clicks into place.
    5Close the Document Tray.
    „Cleaning the Paper Feed Roller (Roller Cleaning)
    Clean the paper feed roller if paper is not fed properly. Cleaning the paper feed roller will wear 
    the roller, so perform this only when necessary.
    1Make sure that the machine is turned on, and then remove any paper from the 
    Rear Tray and Cassette.
    2Press the Feed Switch to select the paper source to clean.
    3Clean the paper feed roller.
    (1)Press the Menu button.
    (2)Use the [ or ] button to select Maintenance/settings, then press the OK button.
    The Maintenance/settings screen is displayed.
    (3)Use the [ or ] button to select Maintenance, then press the OK button.
    The Maintenance screen is displayed.
    (4)Use the { or }
     button to select Roller cleaning, then press the OK button.
    The confirmation screen is displayed.
    (5)Use the { or }
     button to select Ye s, then press the OK button.
    The Paper Feed Roller will rotate as it is cleaned.
    4Repeat (4) and (5) in step 3 twice.
    5Open the Paper Output Tray, and then open the Output Tray Extension.
    (1)Press the Open button to open the Paper Output Tray.
    (2)Open the Output Tray Extension.
    6Make sure that the paper feed roller stops rotating, then load three or more sheets 
    of A4 or Letter-sized plain paper in portrait orientation in the paper source you 
    selected in step 2.
    CautionzThe power cannot be turned off while the machine is sending or receiving a fax, or when there 
    are unsent faxes stored in the machine’s memory.
    zThe machine cannot receive faxes when the power is turned off.
    zIf you disconnect the power cord, all the documents stored in memory are deleted. Send or print 
    necessary documents before disconnecting the power cord.
    Note
    Make sure that the Inner Cover is closed.
    (A) 
    						
    							128Routine Maintenance
    7Repeat (4) and (5) in step 3 three times.
    The paper cleans the paper feed roller as it feeds through the machine.
    If the problem is not resolved, turn off the machine, disconnect the power cord, and then wipe 
    the paper feed roller (A) located on the right side inside the Rear Tray with a moistened cotton 
    swab or the like. Rotate the roller (A) manually as you clean it. Do not touch the roller with your 
    fingers; rotate it with the cotton swab.
    If the problem is still not resolved after performing the procedure above, contact your Canon 
    service representative.
    „Cleaning the Inside of the Machine (Bottom Plate Cleaning)
    This section describes how to clean the inside of the machine. If the inside of the machine 
    becomes dirty, printed paper may get dirty, so we recommend performing cleaning regularly.
    1Make sure that the machine is turned on, and then remove any paper from the 
    Rear Tray.
    2Open the Paper Output Tray, and then open the Output Tray Extension.
    (1)Press the Open button to open the Paper Output Tray.
    (2)Open the Output Tray Extension.
    3Fold a single sheet of A4 or Letter-sized plain paper in half widthwise, and then 
    unfold the paper.
    ImportantzEven if the Cassette is selected as the paper source, paper will be fed from the Rear Tray.
    zDo not perform any other operation while the bottom plate is being cleaned.
    Note
    Make sure that the Inner Cover is closed.
    (A) 
    						
    							
    129
    Routine Maintenance
    4Load only this sheet of paper in the Rear 
    Tray with the open side to the front.
    5Perform bottom plate cleaning.
    (1) Press the  Menu button.
    (2) Use the  [ or  ] button to select  Maintenance/settings , then press the OK button.
    The  Maintenance/settings  screen is displayed.
    (3) Use the  [ or  ] button to select  Maintenance, then press the  OK button.
    The  Maintenance  screen is displayed.
    (4) Use the  { or  }
     button to select  Bottom plate cleaning , then press the OK button.
    The confirmation sc reen is displayed.
    (5) Use the  { or  }
     button to select  Ye s, then press the  OK button.
    The paper cleans the inside of the machine as it feeds through the machine.
    Check the folded part of the ejected paper. If it is smudged with ink, perform Bottom Plate 
    Cleaning again.
    If the problem is not resolved after performing Bottom Plate Cleaning twice, the protrusions 
    inside the machine may be stained. Clean them  according to instructions. See “Cleaning the 
    Protrusions Inside the Machine” on page 130.
    Note
    When performing Bottom Plate Cleaning again, make sure to use a new piece of paper.
    (A)
    (A) Load the paper after unfolding it. 
    						
    							130Routine Maintenance
    „Cleaning the Protrusions Inside the Machine
    If protrusions inside the machine are stained, wipe off any ink from the protrusions using a cotton 
    swab or the like.
    CautionzBe sure to turn off the power and disconnect the power cord before cleaning the machine.
    zThe power cannot be turned off while the machine is sending or receiving a fax, or when there 
    are unsent faxes stored in the machine’s memory.
    zThe machine cannot receive faxes when the power is turned off.
    zIf you disconnect the power cord, all the documents stored in memory are deleted. Send or print 
    necessary documents before disconnecting the power cord. 
    						
    							
    131
    Troubleshooting
    Troubleshooting
    This section describes troubleshooting tips  for problems you may encounter when using the 
    machine.
    z “An Error Message Is Displayed on the LCD” on page 133
    z “LCD Cannot Be Seen At All” on page 138
    z “An Unintended Language Is Displayed on the LCD” on page 138
    z “Cannot Install the MP Drivers” on page 139
    z “Cannot Connect to Computer Properly” on page 140
    z “Print Results Not Satisfactory” on page 141
    z “The Print Result Not Satisfactory When Copying” on page 144
    z “Printing Does Not Start” on page 145
    z “Machine Moves But Ink Is Not Ejected” on page 146
    z “Paper Does Not Feed Properly” on page 146
    z “Paper Does Not Feed from the Paper Source Specified in the Printer Driver” on page 147
    z “Paper Jams” on page 148
    z “Document Jams in the ADF” on page 152
    z “Message Appears on the Computer Screen” on page 156
    z “Error Message Appears on a PictBridge Compliant Device” on page 159
    z “Cannot Print Properly through Bluetooth Communication” on page 160
    z “Cannot Print Properly from a Photo Index Sheet” on page 161
    z “Cannot Remove a Memory Card” on page 161
    z “Scanning Problems” on page 161
    z “Problems Receiving Faxes” on page 162
    z “Problems Sending Faxes” on page 165
    z “Telephone Problems” on page 166
    Note
    This section mainly describes the methods of machine operation for troubleshooting. To handle problems 
    using your computer, refer to “Troubleshooting” in the  User’s Guide on-screen manual. For details on how 
    to view the on-screen manuals, see “Reading the On-screen Manuals” on page 168. 
    						
    							132Troubleshooting
    If an Error Occurs When the Machine Is Connected to a Computer
    When an error occurs in printing such as the machine is out of paper or paper is jammed, a 
    troubleshooting message is displayed automatically. Take the appropriate action described in the 
    message.
    The message may vary depending on the version of your operating system. 
    						
    							
    133
    Troubleshooting
    An Error Message Is Displayed on the LCD
    If an error message is displayed on the LCD, take the corresponding action described below.
    MessageAction
    “The ink may have run out. Replacing 
    the ink tank is recommended.”
    U041 If the lamp on the ink tank is flashing, ink may have run out.
    Replacing the ink tank is recommended.
    If printing is in progress and you want to continue printing, press the 
    OK button 
    with the ink tank installed. Then printing can continue. Replacing the ink tank is 
    recommended after the printing. The machine may be damaged if printing is 
    continued under the ink out condition.
    See “Replacing an Ink Tank” on page 107.
    Notez If multiple ink lamps are flashing red, see “Getting the Ink Status Information” 
    on page 107 and check the status of each ink tank.
    z Since printing in this condition may cause the contents of the fax to be lost, 
    the machine stores received faxes in memory without printing until the ink 
    tank is replaced. Print the fax stored in memory manually after replacing the 
    ink tank. You can set the machine to print received faxes forcibly without 
    storing them in memory, but a part of contents or all contents of the fax may 
    not be printed.
    “Print head is not installed. Install the 
    print head.”
    U051
    “The type of print head is incorrect. 
    Install the correct print head.”
    U052 Follow the directions given in your setup sheet to install the Print Head.
    If the Print Head is already installed, remove the Print Head once and then 
    reinstall it.
    If the error is not resolved, the Print Head may be damaged. Contact your 
    Canon service representative.
    “Some ink tanks are not installed in 
    place.” 
    U072
    “More than one ink tank of the following 
    color is installed.” 
    U071 Possible causes are as follows:
    z
    Some ink tanks are not installed in the correct position. (The lamp on the ink 
    tank flashes.)
    z More than one ink tanks of the same color are installed. (The lamp on the ink 
    tank flashes.)
    Confirm that the ink tanks are installed in the appropriate positions.
    See “Replacing an Ink Tank” on page 107.
    “The remaining level of the ink cannot 
    be correctly detected.”
    U130 The remaining ink level cannot be correctly detected. (The lamp on the ink tank 
    flashes.)
    Replace the ink tank and close the Scanning Unit (Printer Cover).
    Printing with an ink tank that was once empty may damage the machine.
    If you want to continue printing in this condition, you need to release the function 
    for detecting the remaining ink level. Press and hold the 
    Stop/Reset button for 
    at least 5 seconds, and then release it.
    With this operation, releasing the function for detecting the remaining ink level is 
    memorized. Please be advised that Canon shall not be liable for any machine 
    malfunction or damage caused by refilled ink tanks.
    See “Replacing an Ink Tank” on page 107.
    Notez If the function for detecting the remaining ink level is disabled, the ink tank in 
    gray is displayed on the LCD when checking the current ink level.
    See “Getting the Ink Status Information” on page 107.
    z Since printing in this condition may cause the contents of the fax to be lost, 
    the machine stores received faxes in memory without printing until the ink 
    tank is replaced. Print the fax stored in memory manually after replacing the 
    ink tank. You can set the machine to print received faxes forcibly without 
    storing them in memory, but a part of contents or all contents of the fax may 
    not be printed. 
    						
    							
    134Troubleshooting
    “The following ink tank cannot be 
    recognized.”
    U043
    U140
    U150 z
    The ink tank is not installed.
    Install the ink tank.
    See “Replacing an Ink Tank” on page 107.
    z The ink tank is not compatible with this machine. (The lamp on the ink tank is 
    off.)
    Install an appropriate ink tank.
    See “Replacing an Ink Tank” on page 107.
    z An Ink tank error has occurred. (The lamp on the ink tank is off.)
    Replace the ink tank.
    See “Replacing an Ink Tank” on page 107.
    “The ink has run out. Replace the ink 
    tank.”
    U163 Ink has run out. (The lamp on the ink tank flashes.)
    Replace the ink tank and close the Scanning Unit (Printer Cover).
    Printing under the current condition may damage the machine.
    If you want to continue printing in this condition, you need to release the function 
    for detecting the remaining ink level. Press and hold the 
    Stop/Reset button for 
    at least 5 seconds, and then release it.
    With this operation, releasing the function for detecting the remaining ink level is 
    memorized. Please be advised that Canon shall not be liable for any 
    malfunction or trouble which may be caused by continuation of printing under 
    the ink out condition.
    See “Replacing an Ink Tank” on page 107.
    Notez If the function for detecting the remaining ink level is disabled, the ink tank in 
    gray is displayed on the LCD when checking the current ink level.
    See “Getting the Ink Status Information” on page 107.
    z Since printing in this condition may cause the contents of the fax to be lost, 
    the machine stores received faxes in memory without printing until the ink 
    tank is replaced. Print the fax stored in memory manually after replacing the 
    ink tank. You can set the machine to print received faxes forcibly without 
    storing them in memory, but a part of contents or all contents of the fax may 
    not be printed.
    “There is no photo data.” zThere are no image data saved on the memory card that can be read by this 
    machine.
    z The machine may not recognize the file if the file name or the folder path 
    contains certain characters. Use only alphanumeric characters.
    z Photo data edited or processed on a computer must be printed from the 
    computer.
    “The card is currently write-enabled. 
    Remove card and set to read-only 
    mode before performing operation.” The Card Slot is set to 
    USB enabled or LAN enabled .
    You cannot print when the Card Slot is set to  USB enabled or LAN enabled .
    After writing on the memory card, set to  Read-only mode again.
    “Inner cover is open. Close the inner 
    cover and press OK.” If the Inner Cover is open when starting printing, close it and then press the 
    OK 
    button on the machine.
    Do not open or close the Inner Cover while printing, as this can damage the 
    machine.
    “The ink absorber is almost full. Press 
    OK to continue printing. Contact the 
    service center.” The machine has a built-in ink absorber to hold the ink used during Print Head 
    Cleaning, for example.
    This error message indicates that the ink absorber is nearly full.
    Press the 
    OK button to cancel the error so you can continue printing.
    However, because printing is disabled once the ink absorber becomes 
    completely full and until the ink absorber is replaced, you are recommended to 
    contact your Canon service representative as early as possible. (You will need 
    to replace a particular part of the machine.)
    MessageAction 
    						
    							
    135
    Troubleshooting
    “Auto head align has failed. Press OK 
    and repeat operation. ” Possible causes are as follows:
    z
    Print Head nozzles are clogged. 
    Press the  OK button to dismiss the error message, and print the nozzle 
    check pattern to check the status of the Print Head. See “Printing the Nozzle 
    Check Pattern” on page 115 and “Printing Does Not Start/Printing Is Blurred/
    Colors Are Wrong/Straight Lines Are Misaligned” on page 142.
    z Paper of size other than A4 or Letter is loaded in the Rear Tray.
    Press the  OK button on the machine to dismiss the error message, then load 
    two sheets of A4/Letter-sized paper (MP-101) in the Rear Tray.
    Automatic Print Head Alignment cannot be performed using paper from the 
    Cassette. For Automatic Print Head Alignment, always load paper in the 
    Rear Tray.
    z The Paper Output Slot is exposed to strong light.
    Press the  OK button to dismiss the error message, and then adjust your 
    operating environment and/or the position of the machine so that the Paper 
    Output Slot is not exposed directly to strong light.
    After carrying out the above measures, if the problem continues after aligning 
    the Print Head again, press the  OK button to dismiss the error message, and 
    then perform Manual Print Head Alignment. For details on Manual Print Head 
    Alignment, see “Manual Print Head Alignment” on page 120.
    “****
    Error code” “****” is an alphanumeric code that varies according to the error status.
    z
    When “5100” or “5110” is displayed  
    (1) Turn off the machine, and lift the Scanning Unit (Printer Cover) to check if 
    there are any foreign objects inside the machine.
    (2) Move the Print Head Holder (the part that holds the ink tanks) to the right side 
    gently by hand if you can move it manually. Make sure that the ink tanks are 
    securely set in the Print Head Holder.
    (3) Turn on the machine.
    If the same error occurs, follow the instruction in “When other codes are 
    displayed” described below.
    z When other codes are displayed  
    Turn off the machine, and unplug the power cord of the machine from the 
    power supply. After five minutes or more, plug the power cord of the machine 
    back in, and then turn on the machine. If the same error occurs, contact your 
    Canon service representative.
    “Scanner is not operating correctly.” Turn off the machine, and unplug the power cord of the machine from the power  supply. After five minutes or more, plug the power cord of the machine back in, 
    and then turn on the machine. If the same error occurs, contact your Canon 
    service representative.
    “Incompatible device detected. 
    Remove the device.” z
    A communication time out occurs if an operation takes too long or if it takes 
    too much time to send data. This may cancel printing. In such cases, 
    disconnect and reconnect the USB cable.
    When printing from a PictBridge compliant device, depending on the model 
    or brand of your device, you may have to select a PictBridge compliant print 
    mode on the device before connecting it to the machine. You may also have 
    to turn on your device or select Play mode manually after connecting the 
    device to the machine. Perform necessary operations before connecting your 
    device referring to its instruction manual. 
    If the error is still not resolved, check if you can print another photograph.
    z Check your device connected to the machine. Only PictBridge compliant 
    devices or the optional Bluetooth Unit BU-30 can be connected to the 
    machine for direct printing. If a PictBridge compliant device is connected via 
    a USB hub, remove the hub and connect it directly to the machine.
    “An unsupported USB hub is 
    connected. Remove the hub.” If a PictBridge compliant device is connected via a USB hub, remove the hub 
    and connect it directly to the machine.
    “Document in ADF. Redo operation 
    after checking document in ADF and 
    pressing OK.” The document is jammed in the ADF. Remove the document page jammed in 
    the ADF, then press the 
    OK button. When the error is cleared, redo the 
    operation. See “Document Jams in the ADF” on page 152.
    MessageAction 
    						
    							
    136Troubleshooting
    “Document size is too long. Redo 
    operation after checking document on 
    ADF and pressing OK.” The document is too long or is jammed in the ADF. Remove the document page 
    jammed in the ADF, then press the 
    OK button. When the error is cleared, make 
    sure that the document you are loading meets the machine’s requirements 
    before redoing the operation. See “Original Document Requirements” on 
    page 16 and “Document Jams in the ADF” on page 152.
    “Document size not suitable for two-
    sided scanning. Press OK to cancel 
    operation and discharge document.” Two-sided scanning can be used only for A4 or Letter-sized documents. Press 
    the 
    OK button to discharge the document, and rescan the document one side at 
    a time.
    “This paper is not compatible with 
    duplex printing. Remove the paper and 
    press OK.” The 
    Page size  or Paper size  setting in the printer driver is not compatible with 
    automatic duplex printing. Make sure that the paper size suitable for automatic 
    duplex printing is specified. The sizes of media suitable for automatic duplex 
    printing are A4, Letter, A5, B5, and 5 x 7.
    Load the paper of suitable size, then press the  OK button on the machine.
    “Auto redial” The machine is waiting to redial the recipient’s number because the line was  busy or the recipient did not answer when you tried to send a document. Wait for 
    the machine to automatically redial the number. If you want to cancel automatic 
    redialing, wait until the machine starts dialing the number, then press the  Stop/
    Reset  button. You can also delete the document from memory. See “Document 
    Stored in Memory” on page 99.
    “This group dial cannot be used.
    Coded dial ##” You selected a coded speed dial code in which a group is registered with the 
    Hook
     button pressed.
    In this way, a coded speed dial code in which a group is registered cannot be 
    used.
    * “##” represents a two-digit number. 
    “This group dial cannot be used.
    One-touch ##” You pressed a 
    One-touch Speed Dial  button in which a group is registered with 
    the  Hook  button pressed.
    In this way, a  One-touch Speed Dial  button in which a group is registered 
    cannot be used.
    * “##” represents a two-digit number. 
    “Hang up the phone.” The handset is not placed in the handset cradle correctly. Replace the handset  correctly.
    “Try again in black & white.” The recipient’s fax machine is not color-compatible. Press the  Black button to 
    resend the faxes. Alternatively, you can set  Color TX to Send in black & white . 
    Refer to “Color TX” in “Device Settings” of the  User’s Guide on-screen manual.
    “Failed to connect.” The telephone line cable with a modular plug is not plugged in properly, or  Dial 
    tone detect  is set to ON. Make sure that the cable is plugged in properly, and 
    resend the fax after a while. If you still cannot send the fax, set  Dial tone detect 
    to  OFF . Refer to “Dial tone detect” in “Device Settings” of the  User’s Guide on-
    screen manual.
    MessageAction 
    						
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