Canon printer PIXMA MG7720 User Manual

Cannot Print/Scan from Smartphone/TabletIf you cannot print/scan from your smartphone/tablet, it is possible that your smartphone/tablet cannot
communicate with the machine.
Check the cause of your problem according to the connection method.
Cannot Communicate with Machine over Wireless LAN
Cannot Communicate with Machine while It Is in Direct Connection
Note

If the network settings of your smartphone/tablet are not identical with those of the wireless router, change thenetwork settings of it to match with those of the wireless router.
Check5  Make sure machine is not placed far away from wireless router.
The wireless router is located indoors within the effective range for wireless communication. Locate the
machine within 164 ft. / 50 m from the wireless router.
Check6  Check for obstructions.
Wireless communication between different rooms or floors is...

Check8 Make sure there is no source of radio wave interference nearby.
If a device like a microwave oven that emits radio waves of the same frequency bandwidth as a wireless router
is nearby, it may cause interference. Place the machine as far away from the interference source as possible.
Check9  Make sure 5 devices are already connected.
Direct connection does not allow more than 5 devices to be connected.
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Cannot Print/Scan from NFC Compliant Device
If you cannot print or scan although Canon PRINT Inkjet/SELPHY is installed in your NFC compliant device,check the following.
Check1  Is NFC setting  set to Enable ?
When you use the NFC function, select  Enable for NFC setting .
Check2
 Are you touching NFC compliant device to machine properly?
When you touch a NFC compliant device to the machine, make sure you touch the device to the NFC port on the
machine properly.
Check3  Is NFC function of NFC compliant...

Printing Problems
Printing Does Not Start
Paper Jams
Print Results Are Unsatisfactory
No Ink Comes Out
Paper Does Not Feed Properly/"No Paper" Error
Cannot Print on Disc Label
Automatic Duplex Printing Problems
Copying/Printing Stops
Cannot Print Using AirPrint
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Printing Does Not Start
Check1 Make sure machine is securely plugged in and touch  ON button to turn it on.
The  POWER  lamp flashes while the machine is initializing. Wait until the  POWER lamp stops flashing and
remains lit.
Note

Check5 If printing from a computer, delete unnecessary print jobs.

Check9 Set correct printer port. (Windows)
Make sure the correct printer port is set.1.
Log in using an account with administrator privileges.
2.
Make the following settings.

Click Print Options  on Page Setup  sheet of the printer driver. Then set  Prevention of Print Data Loss to On in
the dialog that appears.
* This may reduce print quality.
Check11  If printing from your computer, restart computer.
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Paper Jams
When paper jams, a troubleshooting message appears automatically. Take the appropriate action described
in the message.