Clearing the EEROM

If you clear the calibration parameters￿ you will then need C A U T ￿ ￿ ￿ to perform the Printer calibrations￿ ￿Details ' chapter 5￿￿ Clearing the EEROM also resets the factory spittoon value

to ￿% used￿ Keep in mind that the value printed on the service configuration plot may greatly underestimate the amount of ink in the spittoon￿

Clearing Just the Benchrun and Calibration Parameters

1Switch the Printer OFF￿

2While holding down the Form Feed, Cancel and Media Type keys down￿ switch the Printer ON￿

3Once the the LEDs begin to light up one by one￿ release the keys￿

Clearing Just the User&Defined Setup Parameters

1Switch the Printer OFF￿

2While holding down the Reprint, Cancel, Media Type and Media Source keys down￿ switch the Printer ON￿

3Once the the LEDs begin to light up one by one￿ release the keys￿

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HP DesignJet 430, 450C and 455CA Printers

Service Tests