An Error Message Is Displayed on the LCD

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Message	Action
"The ink may have run out. You are recommended to stop printing, then replace the ink tank." (when printing is in progress) / "The ink may have run out. Replacing the ink tank is recommended." (when printing is not in progress) U044	Ink may have run out (The lamp on the ink tank flashes). If printing is in progress, you are recommended to press the machine's Stop/Reset button to stop printing, replace the ink tank, and then print again. If printing is in progress and you want to continue printing, press the machine's OK button. 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.   Note 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.
"The clear ink tank is empty. Replacing the ink tank is recommended." U045	The clear ink tank is empty. You are recommended to replace the clear ink tank with a new one. If printing is in progress and you want to continue printing, press the machine's OK button. Then printing can continue. Replacing the clear ink tank is recommended after the printing. If the clear ink runs out, you will not be able to print on plain paper.
"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.
"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: Some ink tanks are not installed in the correct position. (The lamp on the ink tank flashes.) 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.
"The following ink tank cannot be recognized." U043 U140 U150	The ink tank is not installed. Install the ink tank.   The ink tank is not compatible with this machine. (The lamp on the ink tank is off.) Install an appropriate ink tank.   An ink tank error has occurred. (The lamp on the ink tank is off.) Replace the ink tank.
"The clear Ink has run out. Replace the ink tank." U165/U166	The clear ink has run out. Replace the clear ink tank with a new one. If you do not replace the clear ink tank, press the machine's Stop/Reset button to clear the error. Print job will be canceled. Print quality will deteriorate considerably and the feeder behind the cassette may be damaged if printing on plain paper is continued under the clear ink out condition. For this reason, you cannot print on plain paper until the clear ink tank is replaced with a new one.   Note Until the clear ink tank is replaced, the machine will not be able to print the received fax and will store it in its memory. The fax stored in memory needs to be printed manually. Important If you accidentally unplug the power cord and the power is turned off when the clear ink has run out, the error may not be cleared even after pressing the Stop/Reset button. Replace the ink tank with a new one.
"The ink has run out. Stop printing, then replace the ink tank." (when printing is in progress) / "The ink has run out. Replace the ink tank." (when printing is not in progress) U171	Ink has run out. (The lamp on the ink tank flashes.) If printing is in progress, press the machine's Stop/Reset button to stop printing, replace the ink tank, and then print again. Printing under the current condition may damage the machine. To continue printing, you need to release the function for detecting the remaining ink level. Press and hold the machine's Stop/Reset button for at least 5 seconds, and then release it. This operation releases the function for detecting the remaining level of the above ink, and releasing the function is memorized. Please be advised that Canon shall not be liable for any malfunction or trouble caused by continuation of printing under the ink out condition.   Note 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.   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.
"Printer detected ink out condition. Stop printing, then replace the ink tank." (when printing is in progress) / "Printer detected ink out condition of the following ink. Replace the ink tank." (when printing is not in progress) U172	Machine detected ink out condition (The lamp on the ink tank flashes). If printing is in progress, press the machine's Stop/Reset button to stop printing, replace the ink tank, and then print again. To avoid printing troubles such as the mixing of inks, this machine is designed to display an error message and stop printing when the remaining ink level in an ink tank goes under the amount of ink required to maintain machine and print quality.
"Printer detected ink out condition. Stop printing, then replace the ink tank." (when printing is in progress) / "Printer detected ink out condition of the following ink. Replace the ink tank." (when printing is not in progress) U181	Machine detected ink out condition (The lamp on the ink tank flashes). Stop printing, replace the ink tank, and then print again. An ink tank that was once empty is installed. Printing under the ink out condition may damage the machine. If you want to continue printing, you need to release the function for detecting the remaining ink level. To release this function, press and hold the machine's 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 or refilling of ink.   Note 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.   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.
"Printer detected ink out condition. Stop printing, then replace the ink tank." (when printing is in progress) / "Printer detected ink out condition of the following ink. Replace the ink tank." (when printing is not in progress) U182	Machine detected ink out condition (The lamp on the ink tank flashes). Stop printing, replace the ink tank, and then print again. Be sure to replace the empty ink tank before resuming printing. An ink tank that was once empty is installed. Printing under the ink out condition may cause the printing trouble such as the mixing of inks, or a printer malfunction. If you want to continue printing, you need to release the function for detecting the remaining ink level. To release this function, press and hold the machine's 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 or refilling of ink.   Note 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.   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."	There are no image data saved on the memory card that can be read by this machine. The machine may not recognize the file if the file name or the folder path contains certain characters. Use only alphanumeric characters. 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 write-enabled (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.
"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.) For support and service options, sign into (or create) your Canon Account from the link below. My Canon Account
"Auto head align has failed. Press OK and repeat operation. <See manual>"	Possible causes are as follows: 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. Plain paper of size other than A4 or Letter is loaded in the Cassette. Press the OK button on the machine to dismiss the error message, then load four sheets of A4/Letter-sized plain paper in the Cassette. Automatic Print Head Alignment can only be performed using paper from the Cassette. For Automatic Print Head Alignment, always load paper in the Cassette. 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.
"The transport unit may not be clean. Perform sheet cleaning. <See manual>"	When a sheet cleaning operation is necessary, the message is displayed before printing. Press the OK button on the machine to start printing. We recommend that you perform sheet cleaning after printing finishes, as failure to perform sheet cleaning may affect the print quality.
"**** Error code." For Example: B300, 6500, 6A80, 5C00, 5700, 5400, 5B00, 5200, 6800, 5110, 9000, C000, 6C10, 6C00	"****" is an alphanumeric code that varies according to the error status. 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. When other codes are displayed Turn off the machine, and unplug the power cord of the machine from the power supply. After 5 minutes or more, plug the power cord of the machine back in, and then turn on the machine. If the same error occurs, service is required. For support and service options, sign into (or create) your Canon Account from the link below. My Canon Account
"Scanner is not operating correctly."	Turn off the machine, and unplug the power cord of the machine from the power supply. After 5 minutes or more, plug the power cord of the machine back in, and then turn on the machine. If the same error occurs, service is required. For support and service options, sign into (or create) your Canon Account from the link below. My Canon Account
"Incompatible device detected. Remove the device."	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. Check your device connected to the machine. Only PictBridge compliant devices 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.
"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.
"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. Load A4, B5, A5, or Letter-sized paper, 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.
"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.
"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.
"Received in memory."	If the machine receives a fax under one of the following conditions, the machine will not be able to print the received fax and will store it in its memory. When the problem is resolved as described, the fax stored in memory is printed automatically. Ink has run out while receiving a fax: replace the ink tank. Note You can set to print the received fax forcibly even if an ink other than the clear ink has run out. However, a part of contents or all contents of the fax may not be printed since the ink has run out. And also the contents of fax will not be stored in memory.   In addition, if ink has already run out, it is recommended that OFF be selected for Auto print received in RX settings to store the received fax in memory once and print the fax manually after replacing the ink tank.   If the clear ink has run out, until the clear ink tank is replaced, the machine will not be able to print the received fax and will store it in its memory. The fax stored in memory needs to be printed manually.     Paper has run out while receiving a fax: load the paper and press the OK button. Paper of size other than A4, Letter, or Legal is loaded: load A4, Letter, or Legal-sized paper. OFF is selected for Auto print received: select ON, and print the faxes stored in memory from the Memory reference screen. You pressed the Stop/Reset button to cancel printing of a fax: press the FAX button. Note When you did not print the fax stored in memory (e.g., when you did not resolve the problem by pressing the Stop/Reset button), you can delete or print the fax stored in memory later.
"Busy/no signal"	The telephone number you dialed is busy. Try dialing again after waiting for a moment. The fax number dialed was incorrect. Check the fax number and dial again. The recipient's fax machine did not respond (after all automatic redialing attempts). Contact the recipient and have him/her check the fax machine. For an overseas call, add pauses to the registered number. The recipient is not using a G3 machine. The machine cannot send or receive documents to/from the fax machine incompatible with G3 standard. Contact the recipient and ask him/her to check that the fax machine is G3 compatible. The touch tone/rotary pulse setting on your machine is incorrect. Confirm the telephone line type, then set your machine to the setting that matches your telephone line.
"Memory is full."	The machine's memory is full because it has sent/received too many documents, or a detailed document. When sending faxes, divide them to resend. When receiving faxes, print or delete documents in the machine's memory.
"Check the page size and press OK."	Paper of size other than A4, Letter, or Legal is loaded. Load A4, Letter, or Legal-sized plain paper in the Cassette. However, plain paper cannot be fed from the Rear Tray.

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