Hello there, my sister has an HP sprocket for 2 years now but now when she is printing a picture it just falls out. The battery is 100%, it also has the right software. We tried a few things, we tried to print a picture while it is still charging, we also reset the sprocket. The product number is: Z3292A
Yes we use the right HP zin photo papers. I have already done everything that you say below, the sprocket is on and mobile device is connected to the internet. The battery is 100% and there is no firmware upgrade.