Leading edge front calibration Note Before beginning the leading edge front calibration, perform the tray registration calibration on the print engine. To perform the tray registration calibration, touch MENU , then touch CONFIGURE DEVICE , then touch PRINT QUALITY , then touch SET REGISTRATION , then touch SOURCE , and then touch PRINT TEST PAGE . Follow the instructions on the printed registration page to complete the registration setting. Note Make sure you perform the leading edge front calibration for all of the trays. 1 Download the HP LaserJet 9000mfp calibration target and the HP LaserJet 9000mfp calibration values chart.
2 On the MFP to be calibrated, print the calibration target on ledger or A3 paper. See figure 196. 3 Print two copies of the calibration values chart on ledger or A3 paper. 4 Load the calibration target face down, and copy it using the ADF frontside optical unit. 5 Align the top edge of the copied calibration target to the top edge of the original calibration target. Note Make sure you align the paper edges and not the lines. 6 On the calibration target, compare the line at the top edge of the original to the line at top edge of the copy. 7 Determine if the copied page needs to be shifted up or down. If the copied page needs to be shifted, determine the required distance in millimeters.
8 Using the two HP LaserJet 9000mfp calibration values charts, determine the value for the leading edge front that will be entered into the service menu. See figure 199. C8523-90921 ADF and glass calibrations 213