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PIXMA MX340 Office Support
FAQ and troubleshooting

An Error Message Is Displayed on the LCD

Content Id: 8200701800


Issue

If an error message is displayed on the LCD, take the corresponding action described below.

Cause and solution

Check ink U051/U052/U053/U059

The FINE Cartridge may not be installed properly, or the Cartridge may not be compatible with this machine.

Open the Scanning Unit (Cover) and install the appropriate FINE Cartridge.

If the error is not resolved, the FINE Cartridge may be damaged. Contact the service center.

Cause and solution

Check ink U075/U076

Make sure that each FINE Cartridge is installed in the correct position.

When remaining ink cautions or errors occur, the message will appear to inform you of the error.

Refer to "An Error Message Is Displayed on the LCD" .

Replacing Procedure

When you need to replace FINE Cartridges, follow the procedure below.

Caution

Handling FINE Cartridges

Do not touch the electrical contacts (A) or print head nozzles (B) on the FINE Cartridge. The machine may not print properly if you touch it.

If you remove a FINE Cartridge, replace it immediately. Do not leave the machine with FINE Cartridges removed.
Use new FINE Cartridges for replacement. Installing used FINE Cartridges may cause the nozzles to clog. Furthermore, with such cartridges, the machine will not be able to inform you when to replace the cartridges properly.
Once a FINE Cartridge has been installed, do not remove it from the machine and leave it out in the open. This will cause the FINE Cartridge to dry out, and the machine may not operate properly when it is reinstalled. To maintain optimal printing quality, use a FINE Cartridge within six months of first use.

Caution

If a FINE Cartridge runs out of ink, you can print with either Color or Black FINE Cartridge, in whichever ink remains, only for a while. However the print quality may be reduced compared to when printing with both cartridges. We recommend to use new FINE Cartridges in order to obtain optimum qualities. Even when printing with one ink only, print with leaving the empty FINE Cartridge installed. If either of the Color FINE Cartridge or Black FINE Cartridge is not installed, an error occurs and the machine cannot print.
Color ink may be consumed even when printing a black-and-white document or when black-and-white printing is specified. Both color ink and black ink are also consumed in the standard cleaning and deep cleaning of the Print Head, which may be necessary to maintain the machine's performance. When ink runs out, replace the FINE Cartridge immediately with a new one.

1. Make sure that the power is turned on, and open the Paper Output Tray gently.

2. Lift the Scanning Unit (Cover), then hold it open with the Scanning Unit Support (C).

The FINE Cartridge Holder moves to the replacement position.

Caution

Do not hold the FINE Cartridge Holder to stop or move it forcibly. Do not touch the FINE Cartridge Holder until it stops completely.

Caution

The inside of the machine may be stained with ink. Be careful not to stain your hands or clothing when replacing FINE Cartridges. You can easily wipe off the ink from the inside of the machine with tissue paper or the like. For details on the cleaning, refer to the printed manual: Getting Started.
Do not place any object on the Document Cover. It will fall into the Rear Tray when the Document Cover is opened and cause the machine to malfunction.
If the Document Cover is open, you cannot open the Scanning Unit (Cover). Be sure to lift the Scanning Unit (Cover) with the Document Cover closed.
When opening or closing the Scanning Unit (Cover), do not touch the buttons and LCD on the Operation Panel. Doing so may result in an unexpected operation.
Do not touch the metallic parts or other parts inside the machine.
If the Scanning Unit (Cover) is left open for more than 10 minutes, the FINE Cartridge Holder moves to the right. In this case, close and reopen the Scanning Unit (Cover).

3. Remove the empty FINE Cartridge.

(1) Pinch the tabs and open the Ink Cartridge Locking Cover.

(2) Remove the FINE Cartridge.

Caution

Handle FINE Cartridges carefully to avoid staining of clothing or the surrounding area.
Discard empty FINE Cartridges according to the local laws and regulations regarding disposal of consumables.

4. Prepare the new FINE Cartridge.

(1) Take a new FINE Cartridge out of its package and remove the orange protective tape (D) gently.

Caution

If you shake a FINE Cartridge, ink may spill out and stain your hands and the surrounding area. Handle a FINE Cartridge carefully.
Be careful not to stain your hands and the surrounding area with ink on the removed protective tape.
Do not reattach the protective tape once you have removed it. Discard it according to the local laws and regulations regarding disposal of consumables.
Do not touch the electrical contacts or print head nozzles on a FINE Cartridge. The machine may not print properly if you touch it.

5. Install the FINE Cartridge.

(1) Put a new FINE Cartridge in the FINE Cartridge Holder.

The Color FINE Cartridge should be installed into the left slot and the Black FINE Cartridge should be installed into the right slot.

(2) Close the Ink Cartridge Locking Cover to lock the FINE Cartridge into place.

Push down the Ink Cartridge Locking Cover until it clicks.

(3) Confirm that the Ink Cartridge Locking Cover is closed correctly.

Caution

If the Ink Cartridge Locking Cover is not closed correctly, push down the Ink Cartridge Locking Cover until it clicks.

(E) Closed correctly

(F) Not closed correctly (the cover is tilted)

Caution

The machine cannot print unless both the Color and Black FINE Cartridges are installed. Be sure to install both the FINE Cartridges.

6. Lift the Scanning Unit (Cover) slightly to set the Scanning Unit Support back to its original position, and gently close the Scanning Unit (Cover).

Caution

When setting the Scanning Unit Support back to its original position, be sure to hold the Scanning Unit (Cover) firmly, and be careful not to get your fingers caught.

Caution

When opening or closing the Scanning Unit (Cover), do not touch the buttons and LCD on the Operation Panel. Doing so may result in an unexpected operation.

Caution

If the error message appears after the Scanning Unit (Cover) is closed, refer to "An Error Message Is Displayed on the LCD".
When you start printing after replacing the FINE Cartridge, the machine starts cleaning the Print Head automatically. Do not perform any other operations until the machine completes the cleaning of the Print Head. While cleaning is in progress, the POWER lamp is flashing green.
If printed ruled lines are misaligned or the print head position is misaligned, adjust the print head position.

See Aligning the Print Head .

Replacing a FINE Cartridge

Cause and solution

Check ink U140

The FINE Cartridge may not be compatible with this machine.

Install the FINE Cartridge compatible with this machine.

When remaining ink cautions or errors occur, the message will appear to inform you of the error.

Refer to "An Error Message Is Displayed on the LCD" .

Replacing Procedure

When you need to replace FINE Cartridges, follow the procedure below.

Caution

Handling FINE Cartridges

Do not touch the electrical contacts (A) or print head nozzles (B) on the FINE Cartridge. The machine may not print properly if you touch it.

If you remove a FINE Cartridge, replace it immediately. Do not leave the machine with FINE Cartridges removed.
Use new FINE Cartridges for replacement. Installing used FINE Cartridges may cause the nozzles to clog. Furthermore, with such cartridges, the machine will not be able to inform you when to replace the cartridges properly.
Once a FINE Cartridge has been installed, do not remove it from the machine and leave it out in the open. This will cause the FINE Cartridge to dry out, and the machine may not operate properly when it is reinstalled. To maintain optimal printing quality, use a FINE Cartridge within six months of first use.

Caution

If a FINE Cartridge runs out of ink, you can print with either Color or Black FINE Cartridge, in whichever ink remains, only for a while. However the print quality may be reduced compared to when printing with both cartridges. We recommend to use new FINE Cartridges in order to obtain optimum qualities. Even when printing with one ink only, print with leaving the empty FINE Cartridge installed. If either of the Color FINE Cartridge or Black FINE Cartridge is not installed, an error occurs and the machine cannot print.
Color ink may be consumed even when printing a black-and-white document or when black-and-white printing is specified. Both color ink and black ink are also consumed in the standard cleaning and deep cleaning of the Print Head, which may be necessary to maintain the machine's performance. When ink runs out, replace the FINE Cartridge immediately with a new one.

1. Make sure that the power is turned on, and open the Paper Output Tray gently.

2. Lift the Scanning Unit (Cover), then hold it open with the Scanning Unit Support (C).

The FINE Cartridge Holder moves to the replacement position.

Caution

Do not hold the FINE Cartridge Holder to stop or move it forcibly. Do not touch the FINE Cartridge Holder until it stops completely.

Caution

The inside of the machine may be stained with ink. Be careful not to stain your hands or clothing when replacing FINE Cartridges. You can easily wipe off the ink from the inside of the machine with tissue paper or the like. For details on the cleaning, refer to the printed manual: Getting Started.
Do not place any object on the Document Cover. It will fall into the Rear Tray when the Document Cover is opened and cause the machine to malfunction.
If the Document Cover is open, you cannot open the Scanning Unit (Cover). Be sure to lift the Scanning Unit (Cover) with the Document Cover closed.
When opening or closing the Scanning Unit (Cover), do not touch the buttons and LCD on the Operation Panel. Doing so may result in an unexpected operation.
Do not touch the metallic parts or other parts inside the machine.
If the Scanning Unit (Cover) is left open for more than 10 minutes, the FINE Cartridge Holder moves to the right. In this case, close and reopen the Scanning Unit (Cover).

3. Remove the empty FINE Cartridge.

(1) Pinch the tabs and open the Ink Cartridge Locking Cover.

(2) Remove the FINE Cartridge.

Caution

Handle FINE Cartridges carefully to avoid staining of clothing or the surrounding area.
Discard empty FINE Cartridges according to the local laws and regulations regarding disposal of consumables.

4. Prepare the new FINE Cartridge.

(1) Take a new FINE Cartridge out of its package and remove the orange protective tape (D) gently.

Caution

If you shake a FINE Cartridge, ink may spill out and stain your hands and the surrounding area. Handle a FINE Cartridge carefully.
Be careful not to stain your hands and the surrounding area with ink on the removed protective tape.
Do not reattach the protective tape once you have removed it. Discard it according to the local laws and regulations regarding disposal of consumables.
Do not touch the electrical contacts or print head nozzles on a FINE Cartridge. The machine may not print properly if you touch it.

5. Install the FINE Cartridge.

(1) Put a new FINE Cartridge in the FINE Cartridge Holder.

The Color FINE Cartridge should be installed into the left slot and the Black FINE Cartridge should be installed into the right slot.

(2) Close the Ink Cartridge Locking Cover to lock the FINE Cartridge into place.

Push down the Ink Cartridge Locking Cover until it clicks.

(3) Confirm that the Ink Cartridge Locking Cover is closed correctly.

Caution

If the Ink Cartridge Locking Cover is not closed correctly, push down the Ink Cartridge Locking Cover until it clicks.

(E) Closed correctly

(F) Not closed correctly (the cover is tilted)

Caution

The machine cannot print unless both the Color and Black FINE Cartridges are installed. Be sure to install both the FINE Cartridges.

6. Lift the Scanning Unit (Cover) slightly to set the Scanning Unit Support back to its original position, and gently close the Scanning Unit (Cover).

Caution

When setting the Scanning Unit Support back to its original position, be sure to hold the Scanning Unit (Cover) firmly, and be careful not to get your fingers caught.

Caution

When opening or closing the Scanning Unit (Cover), do not touch the buttons and LCD on the Operation Panel. Doing so may result in an unexpected operation.

Caution

If the error message appears after the Scanning Unit (Cover) is closed, refer to "An Error Message Is Displayed on the LCD".
When you start printing after replacing the FINE Cartridge, the machine starts cleaning the Print Head automatically. Do not perform any other operations until the machine completes the cleaning of the Print Head. While cleaning is in progress, the POWER lamp is flashing green.
If printed ruled lines are misaligned or the print head position is misaligned, adjust the print head position.

See Aligning the Print Head .

Replacing a FINE Cartridge

Cause and solution

Check ink U150

The FINE Cartridge may not be installed properly.

Open the Scanning Unit (Cover) and install the appropriate FINE Cartridge.

If the error is not resolved, contact the service center.

Cause and solution

Check ink U162

The ink may have run out.

The function for detecting the remaining ink level will be disabled since the ink level cannot be correctly detected.

If you want to continue printing without this function, press the machine's Stop button for at least 5 seconds.

Canon recommends to use new genuine Canon cartridges in order to obtain optimum qualities.

Please be advised that Canon shall not be liable for any malfunction or trouble caused by continuation of printing under the ink out condition.

Caution

If the function for detecting the remaining ink level is disabled, is displayed on the LCD.

-⋗ Checking the Ink Status

Since the information contained in the fax may be lost if it is printed in this condition, the received fax will not be printed and will be stored in memory until the ink cartridge is replaced. You must manually print out faxes that were stored in memory. You can change the setting so that the received fax is forcibly printed out instead of being stored in memory, but all or part of the fax information may not be printed because of the ink out condition.

Cause and solution

Check ink U163

The ink has run out.

Replace the ink cartridge and close the Scanning Unit (Cover).

If printing is in progress and you want to continue printing, press the machine's Stop button for at least 5 seconds with the ink cartridge installed. Then printing can continue under the ink out condition.

The function for detecting the remaining ink level will be disabled.

Replace the empty ink cartridge immediately after the printing. The resulting print quality is not satisfactory, if printing is continued under the ink out condition.

Caution

If the function for detecting the remaining ink level is disabled, is displayed on the LCD.

-⋗ Checking the Ink Status

Since the information contained in the fax may be lost if it is printed in this condition, the received fax will not be printed and will be stored in memory until the ink cartridge is replaced. You must manually print out faxes that were stored in memory. You can change the setting so that the received fax is forcibly printed out instead of being stored in memory, but all or part of the fax information may not be printed because of the ink out condition.

Cause and solution

Contact service center

The ink absorber is almost full.

Press the machine's OK button to continue printing. Contact the service center.

Cause and solution

Printer error has occurred 5B00

The machine error has occurred.

Contact the service center.

Cause and solution

Timeout error Press [OK]

Some errors occurred while copying and a certain time passed.

Press the OK button to dismiss the error, and try to copy again.

Cause and solution

Incompatible device Disconnect the cable from direct print port

Check the device connected to the Direct Print Port. Printing photos directly is possible with a PictBridge compliant device or the optional Bluetooth Unit BU-30.
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.

Cause and solution

Failed to scan the head alignment sheet Press [OK]

Scanning the print head alignment sheet has failed.

Press the OK button to dismiss the error, then take the actions described below.

Make sure that the print head alignment sheet is set in the correct position and orientation on the Platen Glass.
Make sure the Platen Glass and the print head alignment sheet are not dirty.
Make sure the type and size of loaded paper is suitable for Automatic Print Head Alignment. For Automatic Print Head Alignment, always load one sheet of A4 or letter-sized plain paper.
Make sure if Print Head nozzles are clogged. Print the nozzle check pattern to check the status of the Print Head.

-⋗ Printing the Nozzle Check Pattern

If the error is not resolved, connect the machine to the computer and align the Print Head on the printer driver.

-⋗ Aligning the Print Head

Cause and solution

Unsupported USB hub Remove hub

If a PictBridge compliant device is connected via a USB hub, remove the hub and connect it directly to the machine.

Cause and solution

Printer error has occurred Contact service center B200

Turn off the machine, and unplug the power cord of the machine from the power supply.

Contact the service center.

Caution

If you disconnect the power plug, all the documents stored in memory are deleted.

Cause and solution

Printer error has occurred ****

"****" is displayed in the alphanumeric character and depends on the error occurred.

5100 is displayed:

Cancel printing, turn off the machine. Then clear the jammed paper or protective material that is preventing the FINE Cartridge Holder from moving, and turn on the machine again.

Caution

Be careful not to touch the components inside the machine. The machine may not print out properly if you touch it.
If the problem is not resolved, contact the service center.

Cause and solution

6000 is displayed:

If any object is placed in front of the machine, remove it.

Open the Paper Output Tray gently, then turn the power off and back on.

In other cases:

Turn off the machine, and unplug the power cord of the machine from the power supply.

Plug the machine back in and turn the machine back on.

If the problem is not resolved, contact the service center.

Cause and solution

Load paper Load paper and press [OK]

Reload the paper correctly and press the OK button.

Caution

When sending faxes before printing out received data, press the Stop button to resolve the error. After you press the Stop button to resolve the error, ensure to press the FAX button in order to print out data remained in memory.

Cause and solution

Document in ADF Press [OK]

The document is jammed in the ADF. Remove the document page jammed in the ADF, then press the OK button. Operate again after resolving the error.

Paper Jams

Cause and solution

Failed to scan document Press [OK]

No document in the ADF.

Press the OK button to resolve the error, then operate again after loading documents.

Cause and solution

Close the feeder cover [OK] ->Eject the document

Documents remain in the ADF.

Press the OK button to eject documents and press the Stop button to stop ejecting.

To continue scanning, operate on the application. The scanning from the ADF may not be supported depending on your application software. For details, refer to the instruction manual of your application.

Cause and solution

Document too long Press [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. After resolving the error, make sure that the document you are loading meets the machine's requirements before redoing the operation.

Paper Jams

Cause and solution

Open the paper output tray [OK] ->Continue printing

Open the Paper Output Tray, then press the OK button.

Cause and solution

Cover is open

You opened the Scanning Unit (Cover) during an operation.

Return the Scanning Unit (Cover) to its original position.

Cause and solution

Paper jammed Clear paper jam and press [OK]

If paper has jammed in the machine, clear the jam, reload the paper in the machine correctly and then press the OK button.

Paper Jams
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