According to your description, I suggest you refer to the following information:
There is no maintenance center in Shangyu. I suggest you contact the maintenance center in Shaoxing:
No.2 Yinta Road, south of Shaoxing 0575-88064975/88120481
Note: It is recommended that you contact them by phone before dealing with maintenance problems such as maintenance cost and cycle.
I hope the above reply can help you.
If the above information can't solve your problem, you can log on to www.hp.com.cn/chat,, the online chat room of HP Network, and ask an online engineer to help you solve the problem further. More product information is available in www.hp.com.cn/800..