
EPSON EPL-N1600 Chapter 3 Troubleshooting
Rev. A 80
2.2 ABNORMAL PRINT OPERAITON
Step Actions and Questions Yes No
SUSPECT COMPONENTS
The followin
components are
associated with this specific problem.
One or more of these components ma
have failed partiall
or completel
. If
ou
cannot isolate the problem usin
this
procedure, replace each component
listed below, one at a time, until the
problem disappears.
• No recommendations
1 Does the printer enter a print c
cle? Go to step 3. Go to step 2.
2
+5 VDC POWER SUPPLY
1. Remove the C258MAIN.
2. Check the volta
e between:
P31-A10 and FG
P31-A11 and FG
P31-B11 and FG
Is there +5VDC between P31 and FG?
Note:
Since there is no convenient test point
on the HPS (PL7.1.2) to check for
+5VDC, this step has
ou check four
separate +5VDC volta
es that run from
the HPS throu
h the PWBA Hotaru and
on to the C258MAIN throu
h J31.
Althou
h not a foolproof test, it should
ive
ou some indication of whether or
not the +5VDC portion of the HPS is
workin
correctl
. Failure to read
+5VDC on an
of the test points most
likel
reflect a HPS failure, but in some
cases an PWBA Hotaru failure ma
ive
ou the same readin
s.
Go to step 3. Replace the
HPS.
3
C258MAIN Board
Execute Status Sheet printin
.
Can the printer
enerate a test print?
Go to step 4. Replace the
C258MAIN.
4 Does the printer still exhibit erratic
operation?
Go to step 5. Problem
solved.
5 Replace the C258MAIN.
Does the printer still exhibit erratic
operation?
Go to step 6. Problem
solved.
6 Execute Status Sheet printin
.
Does the printer reset while makin
a
test print?
Go to Electrical
Noise.
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Step Actions and Questions Yes No
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