2-4
Mechanism Configuration and Operating Principles
Rev. A
C o n fid e n tia l
Printing a character (9x9 font)
A character is printed by energizing the print solenoids with respect to the carriage sub
assembly portion. (The reference timing for the print solenoids is the carriage motor phase
switching signals.) The print head unit moves 0.317 mm (0.012”) (in approximately 1.05 ms) each
time the carriage motor rotates one step (7.5°).
To print the character “2,” print solenoids 2 and 9 are energized first using the same timing as
the carriage motor phase switching signal. Then, print solenoid 8 is energized at TnH (being
delayed a half dot). The remaining print solenoids are energized correspondingly, and the
character “2” is finally printed.
Figure 2-5 Print timing chart
1
2
3
5
4
6
7
8
9
Tn
TnH
Tn+2
Tn+1
Tn+3
TnH(4)
Tn+5
Tn+4
Carriage motor phase
switch timing
Print solenoid
Summary of Contents for TM-U200 Series
Page 6: ...iv Confidential Revision Sheet Revision Page Altered Items and Contents Rev A ...
Page 72: ...2 30 Mechanism Configuration and Operating Principles Rev A Confidential ...
Page 172: ...6 Appendix Rev A Confidential Main Circuit Board Parts Layout ...
Page 176: ...10 Appendix Rev A Confidential ...
Page 186: ...Rev A Appendix A 20 TM U200 Series Type A AM Technical Manual Confidential ...
Page 187: ...Confidential SEIKO EPSON CORPORATION Printed in Japan ...
