Ribbon Tracking - Bell DATASPEED 40 Adjustments And Lubrication

ISS 3, SECTION 582-210-700
RIBBON TRACKING (For Tractor Feed Printers equipped with new ribbon tracking parts but not
equipped with reinker mechanism)
Note: This adjustment does not apply to 40P253 Forms Access Printer.
Requirement
If a new ribbon does not track as described, the roller posts should be checked for squareness. The
posts carrying the front roller must be vertical (in reference to the ribbon guide top plate) as gauged by
eye. The posts carrying the rear rollers must be vertical in the front to rear direction and the right
roller should lean towards the right by a slight amount (less than 1
0 )
and the left roller should lean
towards the left by a slight amount (less than 1
0 ).
VERTICAL VERTICAL
~
HAMMER
~
I
I
BANK
n
1
o
~ ~lIn
<'
1I!1~t-
_ _ _ --'
L -
~
---
RIBBON DIRECTION
I -- --
S------
t
~~---R~tt:RS
___
~-------------4
!
E:)
~
~-s--
f -- --
~
REAR
ROLLERS
RIBBON DIRECTION
-.jf--~:::@,=~-====::.
U
f
E0
i---VERTICAL AS
GAUGED~
I
BY EYE
I
FRONT _ _ ,
ffi ffi
ROLLERS.~ ~
LEFT SIDE
(Front View)
To Check
E0
!
VERTICAL AS
GAUGED
----j
BY EYE
I
ffi
ffi
ttJ
(Side View)
~
RIGHT SIDE
Using a new ribbon and with unit running, check position of ribbon on the rear rollers of the right and
left ribbon guide arms as follows:
If ribbon is being wound on the right-hand spool, the ribbon should ride against lower flange of the
right roller; however, it should not ride either so low as to cause a permanent curl to form in the
ribbon or higher than 1/16 inch above the lower flange. For left roller, the ribbon should ride with no
curl to 1/4 inch above lower flange.
If
ribbon is being wound on the left-hand spool, the ribbon should ride against lower flange of the left
roller; however, it should not ride either so low as to cause a permanent curl to form
in
the ribbon or,
higher than 1/16 inch above lower flange. For right roller, the ribbon should ride with no curl to
1/4 inch above lower flange.
If
rollers do not meet requirement or ribbon is not tracking properly, the vertical alignment of the
roller posts may be refined. To lower ribbon track, increase the amount the rear rollers lean outwards
(the right roller to the right and the left roller to the left). To raise ribbon track, do the opposite.
Caution must be used not to overadjust. A 1/4-inch spin-tight socket wrench will slip over roller post
and can be used for adjusting.
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