Epson TM-L90-i Technical Reference Guide

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Cleaning the Thermal Head
Epson recommends cleaning the thermal head periodically (generally every 3 months) to
maintain receipt print quality.
Turn off the printer, open the roll paper cover, and clean the thermal elements of the thermal
head with a cotton swab moistened with an alcohol solvent (ethanol or IPA).
Depending on the roll paper used, paper dus
t may stick to the platen roller and roll paper end
sensor. To remove the paper dust, clean the platen roller and roll paper end sensor with a cotton
swab moistened with water. Turn on the printer power only after the water has completely
dried.
CAUTION
 After printing, the thermal head can be very hot. Do not touch it and let it cool
before you clean it.
 Do not damage the thermal head by touching it with your fingers or any hard
object.
Thermal head

Epson TM-L90-i Specifications

General

Type	POS printer
Character size	0.99 x 2.4 mm
Print technology	Thermal
Maximum resolution	180 x 180 DPI
Country of origin	China
Autocutter durability	2 million cuts
Mean time between failures (MTBF)	180000 h
Product color	Gray
Maximum roll diameter	90 mm
USB port	Yes
USB connector	Micro-USB Type-A, Micro-USB Type-B, USB Type-A
USB 2.0 ports quantity	4
Connectivity technology	Wired
Ethernet LAN (RJ-45) ports	1
Storage temperature (T-T)	-10 - 50 °C
Operating temperature (T-T)	5 - 45 °C
Operating relative humidity (H-H)	10 - 90 %
Wi-Fi	No
Ethernet LAN data rates	10, 100 Mbit/s
Package depth	300 mm
Package width	190 mm
Package height	240 mm
Package weight	3000 g
Quantity per pack	1 pc(s)

Weight and Dimensions

Depth	195 mm
Width	145 mm
Height	148 mm