Epson TM-U200 Series Technical Manual

4-16 Troubleshooting Rev. A
Confidential
Error Types and Countermeasures
Follow the flowcharts on the next page based on the ERROR LED blinking patterns in the table
below and repair the printer. The printer does the following when an error occurs:
❏ All operations stop
❏ The printer goes off-line (when DIP SW 1-8 is off).
❏ The ERROR LED blinks.
Figure 4-1 ERROR LED blinking patterns
Error ERROR LED Blinking PatternError Description Action
(1) Head high-temper-
ature error ( 1)
Print head temperature is too high.
*
(2) Auto cutter error
There is an abnormality in the
auto cutter.
(3) Memory or gate
array read/write
error
Read/write check has failed.
(4) High-voltage error
Power supply voltage is too high.
(5) Low-voltage error
Power supply voltage is too low.
(6) CPU execution
error
CPU is trying to execute an invalid
address.
(7) Thermistor error
There is an abnormality in detecting
the print head temperature or the print
head rank can not be read correctly.
Action 1
Action 2
Action 3
Action 4
Action 5
Action 6
Action 7
( 1) This error can occur for a short time during normal printing, when the print head reaches a high temperature. No repair
is necessar
y
in this case.
*
160 ms
4
4
4
3
Home position
detection error
Home position cannot be detected
due to a paper jam or other problem.
Auto-cutter error
Print head temperature is out of
normal operating range.
(3) High-voltage error
(4) Low-voltage error
(5) CPU execution
error
(6) Print head
temperature
detection error.
Abnormality occurs in the auto-cutter.
CPU is trying to execute an invalid
address.
Power supply voltage is too low.
Power supply voltage is too high.
(*1) This error can occur for a short time during normal printing, when the print head reaches a high temperature. No
repair is necessary in this case.
Approx. 2.56 sec
** See troubleshooting flowchart.
**

Epson TM-U200 Series Specifications

General

Brand	Epson
Model	TM-U200 Series
Category	Printer
Language	English