• CLOCK DENSITY SETUP 1 • ADF TRAY WIDTH CALIBRATION : writes the minimum (A6R) and maximum (A4) width values to the potentiometer. • SAVE SETTINGS . • RESTORE SETTINGS . 1 This calibration is not used on the HP LaserJet 9000mfp. Perform calibrations if a customer experiences an image defect (image stretch, for example). Also, perform calibrations if the glass, ADF width sensor, ADF optical unit, or flatbed optical unit are replaced. Table 27.
Replaced components and required calibrations 208 Chapter 7 Troubleshooting C8523-90921 Replaced component Required calibration Glass Leading edge glass Left side glass Leading edge front Left side front ADF plain scaling (ADF heavy scaling if necessary) Glass scaling ADF width sensor ADF tray width calibration ADF optical unit Leading edge back Left side back Flatbed optical unit Leading edge glass Left side glass Leading edge front Left side front