IBM Selectric - Page 180

130.3 Figure 30.5
Excessive Mechanical Delay
Magnet Seal Time
0
0
to 130
0
Total of
16.3 ms
6.5 ms
46.5 ms
69.3 ms
This printer, then, would be able to accept the next
character in 69.3 ms or for this one cycle at 14.4
character rate. In an open ended application, the
31.0 lie;> Component Location
Print Selection Magnet Assembly
TAB
I
,
n
I '
1
I I
I ,
1 1
000
000
000
I
C
0
0
0
000
000
000
000
000
000
000
000
D
@
a a a
a a a
a a
0
000
Operational Terminal Block
I 1
'1·0:
I I
I I
I I
I I
I I
Space
B.S.
i .. I
u
I I
I I
I ,
1 I
, ,
I
30.4
2 3 4
character wou Id be presented to the pri nter in 67.5
ms (14.8 characters per second), before the printer
is ready to accept it. Since the C5 contacts would
still be open part of
the new incoming pulse would be
lost.
S.H.
Dropping characters, malselection,.extra cycles can
result from excessive mechanical delay, depending on
the mechanism affected and the amount of excessive
delay.
5 6 7 8
2 3
5 6 7 8
00000"000
o 0 0 oC§)o 0 0 0
000 0 0 0 0 0
~ g ~ ~~ ~ ~ ~
00000000
Block A
Block B
Selection Contact Terminal Blocks
INDEX
I
n
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, I
,
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I 1
'"'
><
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u
u:i
'"
r..J
~
Q
;:;
<D
U
~
'0:
I I
I I
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I
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Operational Magnet Contacts
I I
C.R.
Operational Magnets
Figure 31 :0
5·36