Even With Power Turned On - Epson Stylus CX3100 Service Manual

EPSON Stylus CX3100/3200
Table 3-2. Observations and Troubleshooting Flowcharts
Observation
Power is on but not LED does not turn on at all.
operating
Printer mechanism does not operate at all.
Scanner mechanism does not operate at
all.
Error is detected LCD/LED panel shows error status.
Trouble related to Printing is not done.
print
Print is abnormal (Dot missing, etc.).
Print quality is bad.
Paper feeding is not Paper feeding is not done.
normally carried out.
Paper jam occurs.
Paper start up position is not correct.
Faulty operation Pressing a button does not work.
panel
Trouble related to Scanner does not operate normally.
scanner
Troubleshooting
Details Refer to
Flowchart 3-1
Flowchart 3-2
Flowchart 3-3
Flowchart 3-4
Flowchart 3-5
Refer to
"Troubleshooting for
Scanner" (p.30)
Troubleshooting at Unit Level
3.1.1 Printer / Scanner does not operate at all

even with power turned on

Start
No
AC power /
voltage
is normal?
Yes
Yes
Fuse (F1) of power
board is blown?
No
Check output voltage of
power board CN2.
No
Power board
output voltage is
normal?
Yes
Replace main board
Check motors, head
and other parts
Flowchart 3-1.
Revision A
Input normal
power.
Replace fuse.
Disconnect CN10 of
main board and turn
power on again.
No
Fuse is blown
again?
Yes
Replace power board
End
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