Model and serial numbers
The model number and serial number are listed on an identification label located on the back of the printer. HP LaserJet 3100 product Model number C3948A HP LaserJet 3150 product Model number C4256A The serial number contains information about the Country of Origin, the Revision Level, the Production Code, and production number of the HP LaserJet 3100 3150 product. The label also contains power rating and regulatory information. The label shown in Figure 1 below is a label from an HP LaserJet...