Canon printer PIXMA MG7720 User Manual

							Cannot Find Machine During Wired LAN Setup: Check 6
Check router settings.
Check router network connection settings such as IP address filtering, MAC address filtering, and DHCP
function.
For more on checking the settings of the router, refer to the instruction manual supplied with the router or
contact its manufacturer.
After checking the router settings, click  Redetect on the Check Printer Settings  screen to redetect the
machine.
If the machine is found, follow the instructions on the screen to continue to set up network communication.
If the machine is not yet detected, select the  Set up the network connection via USB check box on the
Check Printer Settings  screen, and then click Next to set up the network communication via USB.
901 
						

							Cannot Find Machine on Printers on Network List Screen
The machine could not be detected with the current setup method.Select the  Setting printer could not be found on the list  check box and click Next. The screen to show
another setup method is displayed.
Perform setup following the instructions on the screen.
902 
						

							Cannot Proceed beyond Printer Connection Screen/Connect Cable
Screen
If you cannot proceed beyond the  Printer Connection screen or the Connect Cable  screen, check the
following.
Check1  Make sure USB cable is securely plugged in to machine and computer.
Connect the machine and the computer using a USB cable as the illustration below. The USB port is located at
the back of the machine.
Check the items below only if you cannot proceed beyond the Printer Connection screen.
Check2  Follow procedure below to connect machine and computer again.
Important

						

							7.Redo setup according to instructions on Canon website.
Note

						

							Cannot Find Machine on Wireless LAN
Check1 Make sure machine is turned on.
Check2 Is  icon displayed on touch screen?
If the icon is not displayed, tap the icon on the upper right and select  Activate wireless LAN on the Change
LAN  screen.
Check3
 If machine is temporarily connected to computer via USB cable, make sure
USB cable is connected properly.
If you set up the wireless LAN connection or change the wireless LAN settings using IJ Network Tool over a USB connection, connect the machine and the computer using a USB cable as the illustration below. The USB port is
at the back of the machine.
Check4  Make sure machine setup is complete.
If it is not, perform setup.

						

							If No Driver  appears under  Name in IJ Network Tool, the machine is not associated with a port. Select
Associate Port  in the Settings  menu to associate a port with the machine.
When Printer Driver Is Not Associated with Port
Check7
 Make sure machine and wireless router network settings match.
See instruction manual provided with wireless router or contact its manufacturer to check wireless router settings, and then modify machine settings to match.
Setting an Encryption Key
Check8  Check for obstructions.
Wireless communication between different rooms or floors is generally poor. Move the machine and wireless router as necessary.
To check the radio status,

						

							If your security software's firewall is on, a message may appear warning you that Canon software is attemptingto access the network. If this warning message appears, set security software to always allow access.
If you are using any programs that switch between network environments, check their settings. Some programs
use a firewall by default.
Check14  If using a router, connect machine and computer to LAN side (same network
segment).
Check15  If machine is connected to an AirPort Base Station via LAN, use alphanumeric
characters for network name (SSID). (Mac OS)
If the problem is not resolved, redo setup.

						

							Cannot Find Machine on Wired LAN
Check1 Make sure machine is turned on.
Check2  Is  icon displayed on touch screen?
If the icon is not displayed, tap the icon on the upper right and select  Activate wired LAN on the Change LAN
screen.
Check3  Make sure LAN cable is connected properly.
Make sure the machine is connected to the router with the LAN cable. If the LAN cable is loose, connect the
cable properly.
If the LAN cable is connected to the WAN side of the router, connect the cable to the LAN side of the router.
908 
						

							Network Connection Problems
Machine Suddenly Cannot Be Used
Network Key Unknown
Administrator Password Set for Machine Unknown
Machine Cannot Be Used After Replacing Wireless Router or Changing Its
Settings
Printing Is Slow
Ink Level Not Shown on Printer Status Monitor (Windows)
909 
						

							Machine Suddenly Cannot Be Used
Cannot Communicate with Machine Following Network Settings Change (Windows)
Cannot Communicate with Machine via Wireless LAN
Cannot Communicate with Machine Using Direct Connection
Cannot Communicate with Machine via Wired LAN
Cannot Print or Scan from Network Computer
Cannot Communicate with Machine Following Network Settings
Change (Windows)
It may take a while for the computer to obtain an IP address, or you may need to restart your computer.
Make sure the computer has obtained a valid IP address, and try again to find the machine.
Cannot Communicate with Machine via Wireless LAN
Check1  Make sure machine is turned on.
Check2 Make sure machine and wireless router network settings match.
To check the settings of the wireless router, refer to the instruction manual provided with it or contact its
manufacturer.
To check the current network settings of the machine, print out the network setting information.
Printing Network Settings
If the machine network settings do not match with those of the wireless router, change the network settings of
the machine to match with those of the wireless router using IJ Network Tool.
Check3  Make sure machine is not placed too far away from the wireless router.
The machine can be up to 50 m (164 ft) from the wireless router indoors. Make sure the machine is close enough to the wireless router to be used.
Check4  Check for obstructions.
Wireless communication between different rooms or floors is generally poor. Move the machine and wireless
router as necessary.
Check5  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 wireless router as far away from interference sources as
possible.
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