Auto head align has failed.Press OK and repeat operation. manual>Print Head nozzles are clogged.Press the OK button to dismiss the error, and print thenozzle check pattern to check the status of the Print Head.Routine MaintenancePaper of size other than A4 or Letter is loaded in the RearTray.Press the OK button on the machine to dismiss the error,then load a sheet of supplied paper (Paper For PrintHead Alignment) or A4/Letter-sized Canon Matte PhotoPaper MP-101 with the printing side (whiter side) facingUP in the Rear Tray.For Automatic Print Head Alignment, always load paperin the Rear Tray.The Paper Output Slot is exposed to strong light.Press the OK button to dismiss the error message, andthen adjust your operating environment and/or theposition of the machine so that the Paper Output Slot isnot exposed directly to strong light.After carrying out the above measures, if the problemcontinues after aligning the Print Head again, press the OKbutton to dismiss the error, and then perform Manual PrintHead Alignment.Manual Print Head AlignmentAn 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.B200Printer error has occurred.See the manual.Turn off the machine, and unplug the power cord of themachine from the power supply.If the problem is not resolved, contact your Canon servicerepresentative.****Printer error has occurred.Turn off power then back on again.If problem persists, see the manual."****" is displayed in the alphanumeric character anddepends on the error occurred.5100/5110 is displayed:Cancel printing, and turn off the machine. Then clear thepaper jam or foreign object that is preventing the PrintHead Holder from moving.CautionBe careful not to touch the components inside themachine. The machine may not print out properly ifyou touch it.Turn the machine back on.If the problem is not resolved, contact your Canon servicerepresentative.In other cases:Turn off the machine, and unplug the power cord of themachine from the power supply.Plug the machine back in and turn the machine back on.If the problem is not resolved, contact your Canon servicerepresentative.Scanner is not operating correctly. Turn off the machine, and unplug the power cord of themachine from the power supply.After a while, 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.Release the scanner lock switch andturn the power off and back on.The Scanner Lock Switch is not released. Slide the ScannerLock Switch to the release position ( ) and press the ONbutton to turn the machine off.Then, turn the power back on. If this error still remains,contact a Canon service representative.The card is currently writable from PC.Set to [Not writable from PC].The Card Slot is set to Writable from USB PC or Writablefrom LAN PC.You cannot print from the memory card or save the scanneddata to the memory card when the Card Slot is set toPage 784 of 947 pagesAn Error Message Is Displayed on the LCD