HP 450c Service Manual - Page 12

Itrduct, Is the Printer Using the Latest Firmware Revision?, Important Information, Important, lower

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Introduction This chapter will guide you through the relevant steps to take when troubleshooting the printer. Is the Printer Using the Latest Firmware Revision? Before spending time troubleshooting the problem by doing the various tests or replacing parts (which may not need replacing), check which firmware revision the printer is using. To check which firmware revision the printer is using, Print the Service Configuration Plot ' page 4Ć29. Some problems which occurred in earlier firmware releases may have been solved in later revisions. So if there is a new firmware revision then replace the Firmware SIMM before replacing any parts. Important Information The Printer firmware is contained either on a flash ROM SIMM at the back of the Printer or on a masked ROM inside the electronics module. The firmwareĆrevision level, for example A.01.03, is printed by the Printer on the setup sheet and on the service configuration plot. The revision level is also printed on a label on any flash ROM SIMM. Do not open the electronics module. Important: When replacing the electronics module, always remember to check the firmware revision level of the new electronics module. The revision level will be printed on the top surface of the module. Also, check the firmware revision level of the ROM SIMM installed in the old electronics module. With this information you must do the following: 1. If the firmware revision level of the ROM SIMM in the old electronics module is lower than the firmware revision level of the new electronics module, then you must not install the ROM SIMM into the module. 2. If the firmware revision level of the ROM SIMM in the old electronics module is higher than the firmware revision level of the new electronics module, then you must install the ROM SIMM into the module. Example 1: The ROM SIMM firmware revision level is A.01.03 and the firmware revision level of the electronics module is A.01.04. You would use the electronics module without the ROM SIMM installed. Example 2: The ROM SIMM firmware revision level is A.01.05 and the firmware revision level of the electronics module is A.01.04. You would use the electronics module with the ROM SIMM installed. 1-2 HP DesignJet 430, 450C and 455CA Printers Troubleshooting

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1-2
Troubleshooting
HP DesignJet 430, 450C and 455CA Printers
I(tr)duct$)(
T#$s c#a*t°r w$&& "u$d° 2)u t#r)u"# t#° r°&°va(t st°*s t) ta%° w#°(
tr)ub&°s#))t$(" t#° *r$(t°r.
Is the Printer Using the Latest Firmware Revision?
B°!)r° s*°(d$(" t$’° tr)ub&°s#))t$(" t#° *r)b&°’ b2 d)$(" t#° var$)us t°sts
)r r°*&ac$(" *arts ±w#$c# ’a2 ()t (°°d r°*&ac$("², c#°c% w#$c# !$r’war°
r°v$s$)( t#° *r$(t°r $s us$(". T) c#°c% w#$c# !$r’war° r°v$s$)( t#° *r$(t°r $s
us$(",
Print the Service Configuration Plot
'
*a"° 43³9. S)’° *r)b&°’s
w#$c# )ccurr°d $( °ar&$°r !$r’war° r°&°as°s ’a2 #av° b°°( s)&v°d $( &at°r
r°v$s$)(s. S) $! t#°r° $s a (°w !$r’war° r°v$s$)( t#°( r°*&ac° t#° F$r’war°
SIMM b°!)r° r°*&ac$(" a(2 *arts.
Important Information
T#° Pr$(t°r !$r’war° $s c)(ta$(°d °$t#°r )( a !&as# ROM SIMM at t#° bac%
)! t#° Pr$(t°r )r )( a ’as%°d ROM $(s$d° t#° °&°ctr)($cs ’)du&°. T#°
!$r’war°3r°v$s$)( &°v°&, !)r °xa’*&° A.01.0´, $s *r$(t°d b2 t#° Pr$(t°r )( t#°
s°tu* s#°°t a(d )( t#° s°rv$c° c)(!$"urat$)( *&)t.
T#° r°v$s$)( &°v°& $s a&s)
*r$(t°d )( a &ab°& )( a(2 !&as# ROM SIMM.
D) ()t )*°( t#° °&°ctr)($cs
’)du&°.
Important
: W#°( r°*&ac$(" t#° °&°ctr)($cs ’)du&°, a&wa2s r°’°’b°r t)
c#°c% t#° !$r’war° r°v$s$)( &°v°& )! t#°
new
°&°ctr)($cs
’)du&°. T#° r°v$s$)( &°v°& w$&& b° *r$(t°d )( t#° t)* sur!ac° )!
t#° ’)du&°. A&s), c#°c% t#° !$r’war° r°v$s$)( &°v°& )! t#° ROM
SIMM $(sta&&°d $( t#°
old
°&°ctr)($cs ’)du&°. W$t# t#$s
$(!)r’at$)( 2)u ’ust d) t#° !)&&)w$(":
1. I! t#° !$r’war° r°v$s$)( &°v°& )! t#° ROM SIMM $( t#° )&d
°&°ctr)($cs ’)du&° $s
lower
t#a( t#° !$r’war° r°v$s$)( &°v°& )!
t#° (°w °&°ctr)($cs ’)du&°, t#°( 2)u
must not
$(sta&& t#°
ROM SIMM $(t) t#° ’)du&°.
³. I! t#° !$r’war° r°v$s$)( &°v°& )! t#° ROM SIMM $( t#° )&d
°&°ctr)($cs ’)du&° $s
higher
t#a( t#° !$r’war° r°v$s$)( &°v°&
)! t#° (°w °&°ctr)($cs ’)du&°, t#°( 2)u
must
$(sta&& t#° ROM
SIMM $(t) t#° ’)du&°.
Exa’*&° 1: T#° ROM SIMM !$r’war° r°v$s$)( &°v°& $s A.01.0´
a(d t#° !$r’war° r°v$s$)( &°v°& )! t#° °&°ctr)($cs ’)du&° $s
A.01.04. Y)u w)u&d us° t#° °&°ctr)($cs ’)du&°
without
t#°
ROM SIMM $(sta&&°d.
Exa’*&° ³: T#° ROM SIMM !$r’war° r°v$s$)( &°v°& $s A.01.05
a(d t#° !$r’war° r°v$s$)( &°v°& )! t#° °&°ctr)($cs ’)du&° $s
A.01.04. Y)u w)u&d us° t#° °&°ctr)($cs ’)du&°
with
t#° ROM
SIMM $(sta&&°d.