10400mAh should charge within 12 hours for a standard 1A charger. I have a 10400 Mi Power Bank but it take >24 hours to charge.
I contacted Xiao Mi Support and indeed this is not normal. They suggested to Reboot the power bank. To do that:
Press the Power Button for more than 15 secs.
After that drain the power bank and charge again. The power bank should fully charge about 12 hours or in some case 13 hours is fine.
The support person also suggested if the unit still behaves the same, we should bring it to the nearest service center for checking. http://www.mi.com/my/service/repair/
I have a Cannon Wireless MG3170 All-in-one printer and I use it on my "Memory On Cloud Project". The project is to scan all my childhood pictures ( before Digital Camera was even born) into cloud storage to share with all my siblings and relatives.
There is a scan Feature in MG3170 which allow you to quick scan a file into computer without operating through Computer. This is extremely helpful when you do them in bulk.
When I press it, it does nothing but shows green code with E31.
I know this might be due to some configuration issue and a little bit of research apparently this scan button only works in wired connection, aka usb connection.
Below are all the others ERROR Code that I find them usefull when come in handy. Hence this blog. Cause and Solution ( From :http://support-sg.canon-asia.com/contents/SG/EN/8201156800.html#25)
E, 0, 2
The machine is out of paper./Paper does not feed.
E, 0, 3
E, 0, 4
The FINE cartridge is not installed properly.
E, 0, 5