Error Code - Epson TM L90 Technical Reference Manual

F.1.4 Error code
There are three types of error possible: Automatically Recoverable Errors, Recoverable Errors,
and Unrecoverable Errors.
For the automatically recover 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, the printer may be damaged. Turn the power off, and take the
printer to a dealer for repairs.
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.
Rev. B
Type of error
Printing on the roll paper is
not performed correctly
due to a cover-open
The head has become very
hot.
TM-L90/TM-L90 with Peeler Technical Reference Guide
Error LED Flash code
Approx.320 ms
Recovery measure
Automatic recovery by
closing the roll paper
cover
Recovers automatically
when the print head
cools.
Troubleshooting F-3