user manual
Service Tests
4-21
HP DesignJet 430, 450C and 455CA Printers
Electronics Test
#'$#"% " &% &%& % &" ($* & "#$&"! " & "' !
$%% ! & %'$
THIS TEST HAS BEEN FOUND TO BE VERY UNSTABLE DUE TO
SOME INTERACTIONS BETWEEN SOME OF THE COMPONENTS
OF THE ELECTRONICS MODULE. IT IS SOMETIMES IMPOSSIBLE
TO EXIT THIS TEST WITHOUT SWITCHING OFF THE PRINTER.
$"$ & &$"!% &%& % "")%
1 ! %$( " 1 #$%% Electronics Test "'$ ! #$!&
*%
2 &%& ) %&$& ! & % ) &'$! $ ) !"
"( !& ! & $!&$ ! *"' '%& )& "$ & $"!&+! &"
!& & &%& % #%% "$
3 & &%& #%%% & & LED O ) & '#
4 & &%& % & & LED O ) %&$& &" %
5 &%& "!&!'"'%* $#&% &% '!& *"' #$%% & Cancel and
Media Source *%
If the bail fails the test, try replacing the following component:
Electronics Module page 8Ć13.