Epson TM-U950 Technical Manual

Rev. A Mechanism Configuration and Operating Principles 2-5
TM-U950/U950P Technical Manual
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Home position sensor assembly
The home position sensor assembly is mounted on the left side of the stroke of the head carriage.
The sensor detects the movement of the sensor plate in the rear section of the head carriage, to
determine the position of the head carriage and any possible malfunction.
The home position sensor assembly consists of an LED and a photo IC. When the head carriage
moves, the sensor plate passes between the LED and the photo IC, therefore blocking the light
from the LED and causing a change in the output level of the photo IC. This change is used to
generate the head carriage position signal.
Figure 2-5. Sensor Assembly
Figure 2-6. Home Position Sensor Circuit Diagram
CONFIDENTIAL

Epson TM-U950 Specifications

General

Print speed	18.6 ips
Character size	1.3 x 3.1 mm
Print technology	Dot matrix
Paper dimensions	210 x 297 mm
Dimensions (WxDxH)	251 x 298 x 194.5 mm
Electromagnetic compatibility	VCCI, FCC, CE
Safety	UL, CSA
Country of origin	China
Mean time between failures (MTBF)	180000 h
Serial interface	Yes
Standard interfaces	RS-232C
Weight (imperial)	12.3 lbs
Pallet width	1200 mm
Pallet height	1000 mm
Pallet length (UK)	2250 mm
Quantity per pallet	24 pc(s)
Quantity per pallet (UK)	36 pc(s)
Quantity per pallet layer	4 pc(s)
Harmonized System (HS) code	84433210
Quantity per pallet layer (UK)	6 pc(s)
Package depth	425 mm
Package width	360 mm
Package height	330 mm
Package weight	7196 g
Quantity per pack	1 pc(s)

Weight and Dimensions

Depth	298 mm
Width	186 mm
Height	195 mm