How to change battery for this printer? every time if i switch on tis printer it is asking me to change the battery.

Sir jab me mobile se yadi 2 ya jyada page ki pdf print krta hu to 1 page print hone ke baad print error aa jati h aur resume aur cancel ka option a jata h Phir resume pr click krte hi sabhi page print ho Jate h Pr is Tarah 1st page double baar print ho jata h What can I do Tell me suggestions

Can i connected to PC& laptop

Wifi connect panni print eduka , mission ku network theva paduma bro.....ila mobile la mattum net on la iruntha pothuma