Epson TM-T20III User Manual

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Chapter 5 Handling
Cleaning the Printer
Cleaning the Printer Case
Be sure to turn off the printer, and wipe the dirt off the printer case with a dry cloth or a damp cloth. Be sure to
unplug the AC cable while cleaning.
Cleaning the Thermal Head/Platen Roller
Epson recommends cleaning the thermal head periodically (generally every 3 months) to maintain receipt print
quality. Depending on the roll paper used, paper dust may stick to the platen roller and cause an irregular paper
feed. To remove the paper dust, clean the platen roller with a cotton swab moistened with water. Turn on the
printer power only after the water has completely dried.
Turn off the printer and open the roll paper cover. Clean the thermal elements of the thermal head with a cotton
swab moistened with an alcohol solvent (ethanol or IPA).
CAUTION
Never clean the product with alcohol, benzine, thinner, or other such solvents.
Doing so may damage or break the parts made of plastic and rubber.
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
Platen roller

Epson TM-T20III Specifications

General

Type	POS printer
Character sets	ANK
Print technology	Direct thermal
Maximum resolution	203 x 203 DPI
Maximum roll diameter	83 mm
Supported paper width	80 mm
USB port	Yes
USB connector	USB Type-B
Standard interfaces	RS-232, USB 2.0
Serial interface type	RS-232
Serial ports quantity	1
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Connectivity technology	Wired
Mean cycles between failures (MCBF)	60000000
AC input voltage	24 V
Power consumption	1800 mA
Power source type	AC
Power consumption (standby)	100 mA
Product color	Black
Safety	UL, CSA, TÜV
Certification	FCC-Class A, CE, EN55022-Class A
Country of origin	Philippines
Mounting position	Horizontal/Vertical
Autocutter durability	1.5 million cuts
Built-in sensors details	Roll paper cover open sensor, Paper End Sensor, Paper Near End Sensor
Sound pressure level (printing)	55 dB
Mean time between failures (MTBF)	360000 h
Storage temperature (T-T)	-10 - 50 °C
Operating temperature (T-T)	5 - 45 °C
Operating relative humidity (H-H)	10 - 90 %
Package depth	235 mm
Package width	192 mm
Package height	280 mm
Package weight	2620 g
Quantity per pack	1 pc(s)
Ethernet LAN	No
Quantity per pallet	112 pc(s)
Quantity per pallet (UK)	168 pc(s)
Master (outer) case width	400 mm
Quantity per pallet layer	16 pc(s)
Master (outer) case height	295 mm
Master (outer) case length	490 mm
Master (outer) case weight	0 g
Harmonized System (HS) code	84433210
Quantity per pallet layer (UK)	24 pc(s)
Quantity per master (outer) case	4 pc(s)

Weight and Dimensions

Depth	199 mm
Width	140 mm
Height	146 mm