Epson TM-L90 Technical Reference Manual page 113

7.2.1.4 Error Code
There are three types of error possible: Automatically Recoverable Errors, Recoverable Errors,
and Unrecoverable Errors.
For the automatically recoverable errors, the users do not have to do anything special; instead it
will recover automatically when the head temperature cools down or the cover is correctly
closed.
For the recoverable errors, the user needs to perform some appropriate action suitable for the
error to recover.
If an unrecoverable error occurs, printing is no longer possible. If the same error occurs again
even after turning the power back on, contact your dealer or a Epson service center.
Automatically recoverable errors
Although normal printer operation is no longer possible when automatically recoverable errors
occur, they do not represent printer failure. They are easily corrected through use of the printer's
controls.
Automatically recoverable errors
Error name
Roll paper cover
open error (when the
recoverable error is
selected) (*1)
Print head
temperature error (*2)
Note:
*1 Use the memory switch Msw8-8 to determine the cover open error as an automatically recoverable error
or a recoverable error. (Factory default setting is Recoverable Error.)
*2 This is not any failure or abnormal condition; it just indicates an error condition in case the head
temperature has become very hot due to the continuous use with heavy printing duty. If an abnormal
value is detected because of the circuit, the printer judges it a drive circuit error and it becomes an
unrecoverable error.
Type of error Error LED flash code
Printing on the roll
paper is not
performed correctly
due to a cover-open.
The head has
become very hot.
TM-L90/TM-L90 Peeler Model Technical Reference Guide
Approx.320 ms
LED ON
LED OFF
LED ON
LED OFF
Recovery measure
Automatic recovery
by closing the roll
paper cover.
Recovers
automatically when
the print head cools.
Handling 113