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オール・イン・ワン・プリンター Canon PIXMA MX420 SeriesのPDF ネットワーク設定のトラブルシューティングをオンラインで閲覧またはダウンロードできます。Canon PIXMA MX420 Series 34 ページ。 Cartridge reset
Canon PIXMA MX420 Series にも： インストレーション・マニュアル (24 ページ), 仕様 (2 ページ), ネットワーク・インストレーション・マニュアル (14 ページ), ネットワーク設定マニュアル (9 ページ), セッティング (29 ページ), マニュアル (4 ページ)
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Check 5
Is the Wi-Fi lamp (A) lit blue?
If the lamp is not lit, press the Setup button, then using the { } [ ] and OK buttons, select Device settings > LAN settings > Change
wireless/wired > Wireless LAN active to enable wireless LAN.
After enabling wireless LAN, perform setup again by following the procedures in "Wireless Setup" and onward in the printed manual: Getting Started.
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Check 6
When using a router, are the Ethernet cables of the printer and computer connected to the LAN side of the router?
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For details on how to check the connection, refer to the manual supplied with the router or contact its manufacturer.
If the Ethernet cable is connected to the WAN side of the router, connect it to the LAN side.
If the Ethernet cable is loose, connect it properly.
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For the connection procedure, refer to the manual supplied with the router or contact its manufacturer.
Check 7
Is wired LAN enabled?
Perform setup by following the procedures in "Wired Setup" and onward in the printed manual: Getting Started.
Check 8
Is the firewall function of your security software active?
A message may appear on the computer monitor warning that Canon software is attempting to access the network.
If the warning message appears, set the security software to always allow access.
Glossary
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Firewall
A system to use computers connected to the Internet and corporate networks safely. It protects computers and corporate networks against unauthorized access, or restricts unauthorized access to corporate
networks and the Internet.
A