Press the Color button (C), then the Wi-Fi button (A). Make sure that the Wi-Fi lamp (D) flashes quickly and the ON lamp is lit. When the Wi-Fi lamp (D) flashes quickly, the printer is ready to receive information from the wireless network..
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If the printer can’t find the network then hit the Stop button and then go to Wireless LAN settings. Then select your printer and open the print queue. Under Printer, make sure Use Printer Offline is not selected. the best solution for you printer is showing offline