HP LaserJet Enterprise 500 MFP M525 - Manual (Page 19)

Serial number and model number location
The serial number and model number are listed on an identification label located on the back of the
product. The serial number contains information about the country/region of origin, the product
version, production code, and the production number of the product.
Model name Model number
M525dn CF116A
M525f CF117A
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