user manual
Print Quality
6-9
HP DesignJet 430, 450C and 455CA Printers
VLS Problem: $ 0&# )'+# '/ +,0 -#.$#!0)5 /0.'%&0 0 Bias 0 '+ 0&#
0#/0 '*%# /## '%1.#
Corrective Action: .5 0&# $,)),3'+% /0#-/
1 #.$,.* 0&# .0.'"%# )'%+*#+0 )' .0',+
#0')/ ' /#./ 1'"# 1/'+% %#+1'+#
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0, /## '$ 0&#.# &/ ##+ +5 '*-.,2#*#+0
2 $ 0&# -., )#* !,+0'+1#/ -#.$,.* 0&# !!1.!5
)' .0',+ #0')/ ' -%# 7 +" -.'+0 0&#
.'+071)'05 ),0 %'+ 0, /## '$ 0&#.# &/ ##+
+5 '*-.,2#*#+0
3 $ 0&# #..,. '/ /0')) -.#/#+0 .#-)!# 0&# $')'+%
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4 $ 0&# #..,. !,+0'+1#/ 0.5 0&# $,)),3'+%
D #-)!# 0&# .')'+% )# ' -%# 7
D #-)!# 0&# ..'%# //#* )5 ' -%# 7
D #-)!# 0&# )#!0.,+'!/ ,"1)# ' -%# 7
Only replace one component at a time and
check if the problem has gone before
replacing another component. Using this
procedure you will be able to determine
exactly which component failed.
Test Pattern 4:
Upper T est &# $'./0 ,$ 0&#/# -00#.+/ 0#/0/ )'%+*#+0 #03##+ 0&# !5+ +"
*%#+0 !.0.'"%#/ '0 /&,1)" # )1# 3'0& +, !5+ ,. *%#+0 /&",3/ &#
/#!,+" 0#/0/ )'%+*#+0 #03##+ 0&# !5+ +" 5#)),3 !.0.'"%#/ '0 /&,1)" # %.##+
3'0& +, !5+ ,. 5#)),3 /&",3/ &# 0&'." 0#/0/ )'%+*#+0 #03##+ 0&# *%#+0
+" 5#)),3 !.0.'"%#/ '0 /&,1)" # .#" 3'0& +, *%#+0 ,. 5#)),3 /&",3/
Lower Test &'/ 0#/0 -00#.+ '/ 0, !&#!( 0&# !,),. )'%+*#+0 +" -.,"1!#/
-00#.+/ #!& 3'0& "'$$#.#+0 -.'*.5 !,),./ + #!& -00#.+ 5,1 3')) /##
-.'*.5 !,),. !'.!)#/ $ 0&#.# '/ *'/)'%+*#+0 #03##+ 0&# -.'*.5 !,),./ 0&#
!,*-,/'0# !,),. 3')) # -.#/#+0 '+ ,+# -.0 ,$ 0&# !'.!)# +" 3&'0# 3')) #
2'/' )# 0 0&# ,--,/'0# /'"# ,$ 0&# !'.!)#
&#.# .# 03, 05-#/ ,$ *'/)'%+*#+0 /## '%1.#/ +"
D ,.'6,+0) 7 3&#+ 0&# *'/)'%+*#+0 '/ '+ 0&# &,.'6,+0) 4'/
D #.0'!) 7 3&#+ 0&# *'/)'%+*#+0 '/ '+ 0&# 2#.0'!) 4'/