Epson TM-U950 Technical Manual

2-18 Mechanism Configuration and Operating Principles Rev. A
Ribbon Feed Assembly
The ribbon feed assembly is mounted on the right side of the carriage frame and consists of the
parts shown in Figure 2-28.
Ribbon feed operation
When the carriage motor gear turns in the direction, the rotation is transmitted to the
ribbon feed transmission gear and planet gear. The planet gears and rotate around the
small gear wheel of the ribbon feed transmission gear, moving in the direction. This
movement causes the ribbon feed planet lever to rotate in the direction, and the planet
gear moves until it interlocks with the planet gear . Since the planet gear is always
interlocked with the ribbon feed gear, the ribbon feed gear rotates in the direction.
When the carriage motor gear rotates in the direction, the ribbon feed transmission gear
rotates in the direction, and the planet gears and rotate and move in the
direction.
This movement causes the ribbon feed planet lever to rotate in the direction, so that the
planet gear moves until it interlocks with the ribbon feed gear, causing this gear to rotate in
the direction.
Figure 2-28. Ribbon Feed Assembly
a
1 2
b
c
2 3 3
d
e
f 1 2
g
h
1
d
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