HP Officejet Pro X551 Printer series - Manual (Page 219)

Material restrictions
This HP product does not contain intentionally added mercury.
This HP product contains a battery that might require special handling at end-of-life. The batteries
contained in or supplied by Hewlett-Packard for this product include the following:
HP Officejet Pro X451 and X551 Series
Type Lithium Manganese Dioxide
Weight 3.0 g
Location On main board
User-removable No
For recycling information, you can go to www.hp.com/recycle , or contact your local authorities or the
Electronics Industries Alliance: www.eiae.org .
ENWW Material restrictions 205