HP LaserJet Enterprise 500 Color MFP M575 - Manual (Page 19)

Serial number and model number location
The model number and serial 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
M575dn CD644A
M575f CD645A
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