According to your description, I suggest you refer to the following information:
Sorry, there is no HP service center in Tongzhou. Please refer to the following information of Beijing service center and choose the nearest service center to help you:
North D528 0 10-82552799, 5th Floor, Hailong Electronic Building, Zhongguancun, Haidian District, Beijing
Huaye Oriental Rose 0 10-857 10677, No.25, Li Yanjing Middle Street, Chaoyang District, Beijing
Chen Rui International Center, 200m east of Changhong Bridge, Chaoyang District, Beijing F1-90161665438.
88-14010-67130608 Guangqumennei Street, Chongwen District, Beijing
A0 1 1 Room 0 10-8269803 1 (notebook support) /82697566 (printer and desktop support), 2nd floor, Dinghao Electronic Building, No.3 Haidian Street, Zhongguancun, Beijing.
Block B, Haojing Building, Zhichun Road 108, Haidian District, Beijing/Room 0 1005/KLOC-0-82669818
No.55, South Road of Zhongguancun Academy of Sciences, Haidian District, Beijing 0 10-62509399
A14L5272304142/43, Chengming Building, No.2 Xizhimen South Street, Xicheng District, Beijing
I suggest you call them before you go.
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..