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4-18 Service Tests
HP DesignJet 430, 450C and 455CA Printers
Bench Run
The bench run is a routine that each Printer performs before it leaves the
manufacturing site. It attempts to filter out Printers that could have an
early breakdown due to a fault in manufacturing. The bench run tests the
operation of the electronics, carriageĆaxis system, mediaĆaxis system, bailĆlift
mechanism, and service station.
The bench run is performed at the manufacturing site by sending special
commands to the Printer and then pressing the indicated frontĆpanel keys.
If the Printer is switched OFF during the Bench Run, the
Bench Run will be resumed at exactly the same point before the
Printer was switched OFF, until the Bench Run is completed.
THIS TEST HAS BEEN DESIGNED TO BE USED DURING
THE MANUFACTURING STAGE AND NOT IN THE FIELD.
DO NOT AT ANYTIME ENTER THIS TEST WHEN
TROUBLESHOOTING THE PRINTER.
1 The way to enter to Bench Run is to press the Media Source and Form
Feed keys in Service Mode 1. If these keys are accidently pressed, you
must immediately EXIT the Bench Run by switching OFF the
Printer and powering ON again while pressing the Print Quality
and Media Source keys.