Printer Cannot Be Used After Replacing Wireless Router or
Changing Its Settings
When you replace a wireless router, redo the network setup for the printer.
• For Windows:
Use the Setup CD-ROM or follow the instructions on the Canon website.
• For Mac OS:
Follow the instructions on the Canon website.
If this does not solve the problem, see below.
Cannot Communicate with Printer After Enabling MAC/IP Address Filtering or Encryption Key on
With Encryption On, Cannot Communicate with Printer After Changing Encryption Type at Wireless
Cannot Communicate with Printer After Enabling MAC/IP Address
Filtering or Encryption Key on Wireless Router
Check1
Check wireless router setting.
To check the wireless router setting, see the instruction manual provided with the wireless router or contact its
manufacturer. Make sure the computer and the wireless router can communicate with each other under this
setting.
Check2
If filtering MAC addresses or IP addresses at wireless router, check that MAC
addresses or IP addresses for computer, network device, and printer are registered.
Check3
If using WPA/WPA2 or WEP key, make sure encryption key for computer,
network device, and printer matches key set for wireless router.
In WEP setting, the WEP key, key length, key format, the key to use, and authentication method must be
consistent among the wireless router, printer, and computer.
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Summary of Contents for G4200
Page 20: ...Basic Operation Printing Photos from a Computer Copying Faxing 20...
Page 31: ...Handling Paper Originals Ink Tanks etc Loading Paper Loading Originals Refilling Ink Tanks 31...
Page 32: ...Loading Paper Loading Plain Paper Photo Paper Loading Envelopes 32...
Page 49: ...Refilling Ink Tanks Refilling Ink Tanks Checking Ink Status 49...
Page 64: ...Adjusting Print Head Position 64...
Page 77: ...Transporting Your Printer Legal Restrictions on Scanning Copying Specifications 77...
Page 78: ...Safety Safety Precautions Regulatory Information WEEE EU EEA 78...
Page 96: ...Main Components Front View Rear View Inside View Operation Panel 96...
Page 113: ...pqrs PQRS 7 tuv TUV 8 wxyz WXYZ 9 0 _ SP 2 Switch the input mode 2 SP indicates a space 113...
Page 140: ...Refilling Ink Tanks 140...
Page 143: ...Network Connection Network Connection Tips 143...
Page 213: ...Note This setting item is displayed when standard copying is selected 213...
Page 245: ...Defaults You can restore the settings in the displayed screen to the default settings 245...
Page 260: ...Scanning Using AirPrint Using IJ Scan Utility Lite 260...
Page 271: ...Scanning Tips Positioning Originals Scanning from Computer Network Scan Settings 271...
Page 342: ...Sending Faxes from Computer Mac OS Sending a Fax General Notes 342...
Page 344: ...5 Specify fax paper settings as needed 6 Enter fax telephone numbers in To 344...
Page 394: ...Back of Paper Is Smudged Uneven or Streaked Colors 394...
Page 408: ...Scanning Problems Scanner Does Not Work Scanner Driver Does Not Start 408...
Page 413: ...Faxing Problems Problems Sending Faxes Problems Receiving Faxes Telephone Problems 413...
Page 414: ...Problems Sending Faxes Cannot Send a Fax Errors Often Occur When You Send a Fax 414...
Page 422: ...Telephone Problems Cannot Dial Telephone Disconnects During a Call 422...
Page 434: ...Errors and Messages An Error Occurs Message Appears 434...
Page 465: ...Cleaning the Print Head Performing System Cleaning 465...