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4.4.0 OSCILLOSCOPE FIGURES
(50, 100, and 155 Ipm)
_ _ _ _ _ _ _ 00 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
...
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
_
Carriage Motor Drive Pulse
One line space operation, detent on phase
Horizontal 5 ms/div
Vertical top trace 5DV /div
Middle and bottom trace 5V /div
Top trace
- Carriage Motor Phase A
(P7-1 or 13E42)
Middle trace - Input to driver card (13E50)
Bottom trace - Carriage go (13B63)
Sync negative on carriage go
+
-
+
+ - --
----- ----
--_
..
- -
----
---
-
----
-
-
---
--
-
--
-
---
-\-
----
Carriage Advance Pulses
Six lines/inch
Horizontal 2 ms/div
Vertical 2V /div
Top trace - Carriage Advance Pulses (13B46)
Bottom trace - Carriage go (13B63)
Sync negative on carriage go
Carriage Motor Drive Pulse
Three line space operation.
Horizontal 5 ms/div
Vertical top trace 50V /div
Middle and bottom trace 5V
/alv
Top trace
- Carriage Motor Phase A
(P7-1 or 13E42)
Middle trace - Input to driver card (13E50)
Bottom trace - Carriage go (13B63)
Sync negative on carriage go
t-
-
r-
-
-
~--J--~
--t
i
~-
-- -1- --
-1-
----I ----
i
I
,~
I
!
!
I
-
:-±--t-:
I
I
I
'
~---t---~
--
-_
..
~
---t--
-±-
-:~--~
t-
-
i
I
Hammer Fire Pulse
Horizontal .5 ms/div
Vertical 5V /div
Top trace - Input to hammer driver card
Bottom trace - Fire hammer pulse to hammer coil
Sync internal on fire hammer pulse
Carriage Motor Drive Pulse
One line space operation, detent off phase
Horizontal 5 ms/div
Vertical top trace 50V /div
Middle and bottom trace 5V /div
Top trace
- Carriage Motor Phase Not B
(P7-4 or 13E45)
Middle trace - Input to driver card (13E53)
Bottom trace - Carriage go
(~3B63)
Sync negative on carriage go
Belt Printer
50, 100, and 155 Ipm
4-79
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