Epson TM-H6000, Service Manual

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Rev. A Troubleshooting 1-7
TM-H6000/H6000P Service Manual Confidential
Troubleshooting Using the ERROR LED
You can learn the cause of a failure by the pattern of ERROR LED flashes. The following table
shows problems and solutions to repair the printer. Numbers in the "Solutions" column indicate
the order to use to check the problem. If you cannot determine the cause of the problem after
checking all the solutions listed, go back to the flowchart given earlier in this chapter.
Table1-1 Error causes and solutions
Type of Error and ERROR LED Pattern Explanation
Solutions
(Listed in order you should use to check printer.)
Autocutter error Autocutter error has
been detected. 1. Check the autocutter for paper jams.
(See page 1-18.)
2. Check the paper cutter motor sub assembly (See
page 1-9.) If the motor is shorted, replace it along
with the main board.
3. Try installing a new main circuit board unit to see if
the printer is fixed. (See page 2-30.)
If the printer works now, refer to the section "Test
Points on the Main Circuit Board Unit" (page 1-11) to
analyze the area where the failure occurred.
Carriage home position detection
error The head carriage
home position was
not correctly
detected. 1. Check the carriage assembly for paper jams.
(See page 1-14.)
2. Check for paper dust on the H.P. detector
assembly. (See page 1-14.)
3. Replace the sensor.
Carriage out-of-step error There is no carriage
detector output
even when the
carriage is
instructed to move. 1. Check the carriage assembly for paper jams.
(See page 1-14.)
2. Check the rotary encoder on the carriage motor
gear used to detect carriage position.
3. Check the carriage motor. (See page 1-9.)
If the motor is shorted, replace it along with the main
board.
4. Try installing a new main circuit board unit to see if
the printer is repaired. (See page 2-30.)
If the printer works now, refer to the section "Test
Points on the Main Circuit Board Unit" (page 1-11.) to
analyze the area where the failure occurred.
Slip eject error The slip paper was
not ejected
normally. 1. Look into the printer from the left side to check for
a paper jam in the slip paper transport path.
2. Check the paper feed motor. (See page 1-9.)
If the motor is shorted, replace it along with the main
board.
3. Try installing a new main circuit board unit to see if
the printer is fixed. (See page 2-30.)
If the printer works now, refer to the section "Test
Points on the Main Circuit Board Unit" (page 1-11) to
analyze the area where the failure occurred.
320ms
5120ms
LED ON