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Service Calibrations
HP Designjet 4500 Printer Series Service Manual
2 In the Paper Advance Calibration submenu, scroll to "Print Calibration 
Pattern" and press Enter.
3 When the following message appears on the front panel, you must select 
whether you would like to continue with the calibration by pressing the 
Enter key. Press Back or Cancel to exit the calibration.
4 The Printer will start to calibrate the Analog Encoder and the following 
message will be displayed on the Front Panel.
If the Calibration is not done or if the values are out of the limits, a warning 
message will appear on the Front Panel. In this case, try the following:
 Check that the Printer has the latest Firmware version. If not, update the 
Firmware to the latest version.
 Retry the Paper Advance Calibration.
 If the problem continues, replace the Encoder Strip and Encoder Sensor 
⇒ Page 8-52.
Press Enter
Press Cancel
or the
Back key
Press Enter
to Exit
to proceed