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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
Summary of Contents for TM-U950P - B/W Dot-matrix Printer
Page 2: ...Technical manual TM U950 TM U950P English 4005789 Copied Date 199 Copied by ...
Page 3: ...EPSON SEIKO EPSON CORPORATION Printed in Japan E96010130 0000SE CONFIDENTIAL ...
Page 8: ...iv Rev A Revision Sheet Revision Page Altered Item and Contents Rev A CONFIDENTIAL ...
Page 13: ...1 2 Features and General Specifications Rev A Figure 1 1 TM U950 Appearance CONFIDENTIAL ...
Page 119: ...4 6 Troubleshooting Rev A CONFIDENTIAL ...
Page 121: ...4 8 Troubleshooting Rev A CONFIDENTIAL ...
Page 124: ...Rev A Troubleshooting 4 11 TM U950 U950P Technical Manual End End CONFIDENTIAL ...
Page 138: ...Rev A Troubleshooting 4 25 TM U950 U950P Technical Manual Action 1 Action 3 CONFIDENTIAL ...
Page 226: ...6 2 Appendix Rev A Circuit 1 CONFIDENTIAL ...
Page 227: ...Rev A Appendix 6 3 TM U950 U950P Technical Manual Circuit 2 CONFIDENTIAL ...
Page 228: ...6 4 Appendix Rev A Circuit 3 CONFIDENTIAL ...
Page 229: ...Rev A Appendix 6 5 TM U950 U950P Technical Manual Circuit 4 CONFIDENTIAL ...
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Page 232: ...6 8 Appendix Rev A Circuit 8 CONFIDENTIAL ...
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