EPSON EPL-N1600 Chapter 3 Troubleshooting
Rev. A 70
1.4 SERVICE REQ E0005
Fan IOT unit or Duplex Unit Fan is in trouble.
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
FIP, replace each component listed
below, one at a time, until the problem
disappears.
• Fan IOT
• Fan Assembl
Duplex
•HPS
• PWBA Hotaru
• C258MAIN Board
1
FAN IOT
Does the Fan rotate when
ou switch on
printer power?
Go to step 3. Go to step 2.
2
FAN SIGNAL
1. Disconnect P/J222 from the HPS.
2. Check the volta
e between P/J222-3
and P/J222-1.
Is there +12~24VDC between P/J222-3
and P/J222-1?
Replace the
Fan.
Replace the
HPS.
3
PWBA HOTARU
1. Remove the PWBA Hotaru.
2. Check for the continuit
between P21-
B2 and P31-B12.
Is there continuit
between P21 and
P31?
Replace the
C258MAIN
Board.
Replace the
PWBA Hotaru.
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