Chapter 4 Troubleshooting; Led Blinking Pattern; Error Types; Errors That Automatically Recover - Epson U220B - TM Two-color Dot-matrix Printer Technical Reference Manual

Chapter 4
Troubleshooting
This section describes general troubleshooting.

4.1 LED Blinking Pattern

4.1.1 Error Types

The printer stops all printer operations for the selected paper section, goes offline, and the
ERROR LED blinks when an error is detected.

4.1.1.1 Errors that automatically recover

ERROR
Roll paper cover
open error (when
recoverable error is
selected) (*1)
Print head
temperature error (*2)
Note:
(*1) This conditions are selected by MSW 8-5, 8-8. When MSW 8-5 (mapping of the cover open status) is
off, the error hasn't occurred but there is a "paper end error" instead. If MSW 8-8 is off, this error is
handled as an automatically recoverable error.
(* 2) Print head temperature error is not abnormal.
Rev. D
Description
The roll paper cover is
opened when printing.
The temperature of the
print head is extremely
high
TM-U220 Technical Reference Guide
ERROR LED Blinking Pattern
160 ms
Recovery
Recovers automatically
when the cover is
closed.
Recovers automatically
when the print head
cools
Troubleshooting 4-1