ADF plain scaling calibration Note Before beginning the ADF plain scaling 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 ADF plain scaling 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 line of the copied calibration target to the top line of the original calibration target. Note Make sure you align the lines and not the edges. 6 On the calibration target, compare the line at the bottom edge of the original to the line at bottom edge of the copy. 7 Determine whether the copied page needs to be lengthened (line shifted down) or shortened (line shifted up).
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 ADF plain scaling that will be entered into the service menu. See figure 199. C8523-90921 ADF and glass calibrations 215