Oki ML1120, Technical Reference Manual

Page: 225 / 254

Technical Reference Guide – Appendix D – Media specifications > 225
NOTE
The shape of sprocket holes must be a complete circle on both
sides of the paper, or a complete circle on the left and an oval
on the right. Also, dentate edges of the holes are allowable.
Ensure that sprocket hole edges do not turn down.
Sprocket hole diameter D 4.0 ±0.1 The diameters of
sprocket holes
with a dentate
edge must be a
minimum of D
and a maximum
of 4.5 mm.
Centre-to-centre
distance between
sprocket holes
B 12.70 ± 0.05 Centre-to-centre
distance between
adjacent sprocket
holes.
Cumulative error in
centre-to-centre
distance between
sprocket holes
- Within ±0.3 Distance between
any two sprocket
holes within
254 mm.
Deviation of sprocket
hole centre from its
position
C Within 0.1 Deviation of
sprocket hole
from centre line
on that hole side.
Vertical misalignment
between horizontally
corresponding sprocket
holes
E Within 0.15 Amount of
misalignment
between a line
that is drawn
through the
centre of any left-
side sprocket hole
and vertically to
that-side centre
line, and the
centre of its
corresponding
right-side
sprocket hole.
Inclination of centre line
on each side
- Within 0.15 When both centre
lines are moved
parallel to
themselves to
overlap each
other at one end,
distance between
the other ends.
ITEM DIMENSION (MM) REMARKS