Scanner controller PCB The MFP scan engine calibrations are stored on the scanner controller board (SCB). If the SCB needs to be replaced, back up the calibrations by copying the settings to the hard drive. To copy the settings: 1 Touch MENU . 2 Touch SERVICE MENU . 3 Touch SCANNER SETTINGS . 4 Touch SAVE SETTINGS . To write the stored values back to the new SCB: 1 Touch MENU . 2 Touch SERVICE MENU . 3 Touch SCANNER SETTINGS . 4 Touch RESTORE SETTINGS . Note HP recommends backing up the calibration values before performing any of the scan engine calibrations. If you experience a problem while performing a calibration, restore the old values and start over again.
Note A service label located inside the flatbed lower front cover is a hard copy backup of the calibration values. If you enter new calibration values, download the file SERVICE LABELS and record the new values on the label. Tape the new label over the old label. 2 Figure 212. Scanner controller PCB 238 Chapter 7 Troubleshooting C8523-90921