Epson 2170 - page 130

4. Abnormal Printing
NO
YES
Replacethe
printhead.
Isthe
self-test
printed
correctly?
YES
Are
printer
settings
correct?
START
Datareceived from
thehost is not printed
correctly.
NO
YES
Areall
thedots printed
OK?
YES
Are
anywires
inthe printhead
broken?
YES
Does
theresistance
ofprinthead wires
check
OK?
NO
Doall
theLEDs on
thecontrol panel
blinkat
power
on?
NO
YES
Isthe
problem
corrected?
NO
END
YES
Is
theFFC
connected
correctly?
NO Connectthe
cablecorrectly.
YES Isthe
problem
corrected?
NO
END
YES
NO Resetthe
printer.
Isthe
problem
corrected?
NO
END
YES
YES
Are
thecorrect
printerdrivers
installed?
NO Installthe correct
printerdrivers.
Isthe
problem
corrected?
NO
END
YES
Check
theFFC using a
multimeter.Is it
OK?
NO Replacethe
FFC.
YES Isthe
problem
corrected?
NO
END
YES
Replacethe C166
MAINboard.
END
Check
theFFC using a
multimeter.Is it
OK?
NO Replacethe
FFC.
YES Isthe
problem
corrected?
NO
END
YES
Replacethe C166
MAINboard.
END
YES
Does
theprinter
workOK with
another
computer?
NO Problemwith
computer.
END
Replacethe C166
MAINboard.
END
Isthe
bottomof
characters
missing?
NO Reinstallthe
ribbonmask.
YES Isthe
problem
corrected?
NO
END
YES
Checkprinthead, motors
drivers,and power
supplywith a meter.
Replaceany bad parts.
Isthe
problem
corrected?
END
YES
NO
Figure 5-6 Flowchart 4
FX-2170 Service Manual Troubleshooting
Rev.A 5-9