Oki LD670 - Conditions for Using Black Mark Paper

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3-4-2. Conditions for using black mark paper
When using receipt paper or full-sheet label paper with black marks,
confirm that the following conditions are satisfied. The reflection factors at
locations A and B on the paper must be the combination of values specified
in the table below.
Reflection factor
A: Black mark area
8%
B: Margins above or below black marks
75%
Note: The reflectivity values were measured using a Macbeth PCM II
density meter (Filter C).
0 to 1 mm
10 to 12 mm
5.0 to 5.5 mm
A
B
Print area
(seen from the
back side of
paper)
Back side of paper
(back of the coloring side of paper)
Paper feed
direction