Quick Reference Service Manual
11
HP DesignJet 430, 450C and 455CA Printers
Printing the Service Configuration Plot
1 In service mode 2, load a sheet in portrait orientation.
2 When the Ready LED lights up, press the Print Quality and Media Type keys.
Clearing the EEROM
If you clear the calibration parameters, you will then need to perform
the Printer calibrations. Clearing the EEROM also resets the factory
spittoon value to 0% used. Keep in mind that the value printed on the
service configuration plot may greatly underestimate the amount of
ink in the spittoon.
CAUTION
Clearing Just the Benchrun and Calibration Parameters
1 Switch the Printer OFF.
2 While holding down the Form Feed, Cancel and Media Type keys down, switch the
Printer ON.
3 Once the the LEDs begin to light up one by one, release the keys.
Clearing Just the UserĆDefined Setup Parameters
1 Switch the Printer OFF.
2 While holding down the Reprint, Cancel, Media Type and Media Source keys down,
switch the Printer ON.
3 Once the the LEDs begin to light up one by one, release the keys.
Clearing All Parameters
1 Switch the Printer OFF.
2 While holding down the Setup, Form Feed, Reprint, Print Quality and Media Type
keys down, switch the Printer ON.
3 Once the the LEDs begin to light up one by one, release the keys
Calibrations
Performing the Accuracy Calibration
1 Place a sheet of HP Matte Film over the top of the Printer for 10 minutes to let the sheet
stabilize to the environmental conditions.
Use a sheet of approximate size A1 or D.
You must use HP Matte Film.
Otherwise the optical sensor on the
carriage will be calibrated incorrectly, and the Printer will have
problems loading some types of media.
2 Enter into Service Mode 2, by powering ON the Printer while holding down the Media
Source key.
3 Set the Media Type on the front panel to Coated Paper.
