Epson TM-H6000, Service Manual

Page: 11 / 232

1-2 Troubleshooting Rev. A
Confidential
Flowcharts for Diagnosing Failures
Find the problem by following the flowchart.
Figure 1-1 Flowchart (main routine)
START
Does the
problem happen when the
printer is connected to the
host computer?
Problem fixed?
Does the
printer complete its power
on test?
(see page 1-4)
Does the printer
execute the self test?
ERROR LED
flashing?
Problem fixed?
END
Dot missing
problem?
Problem fixed?
Jammed paper
exists?
Problem fixed?
F3 was blown out?
Problem fixed?
Go to "Troubleshooting
using the ERROR LED"
(see page 1-7)
Print quality problem
Paper feed problem or
drawer kick operation problem
Autocutter problem
Display module problem
END
Check paper jam
(see page 1-18)
Power line might be
shorted on the
display module side
END
END
Go to
sub-routine
END
No
END
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Problem on
receipt?
END
Replace the I/F cable
(For serial interface, be
sure you use a null
modem cable.)
Replace the I/F board
(see page 2-38)
Problem fixed?
No
No
Yes
Run the self test
(see page 1-6)
Yes
Check the power supply
Replace if necessary.
Go to
sub-routine
No
No
Go to
sub-routine
Clean the print head
(see page B-3)
Problem fixed?
No
Yes
No
Yes
Replace the print head
(Receipt: see page 2-27)
(Slip: see page 1-14)
Yes
Go to
sub-routine
Remove the jammed paper
(if you need to disassemble the
autocutter unit, see page 2-27
and 2-24)
Go to
sub-routine
Yes
Yes
Check fuse F3
(see page 1-13)
Replace the fuse F3
Go to
sub-routine
No
No
No
No
Yes
No
Replace the ribbon
cassette
(see page I-4)
Problem fixed?
Yes
No
No
No