87
Appendix
Requirement for black mark printing
The allowable relation between the reflecting rate in the black mark portion (1) and the non black mark portion
(2) must be as shown in the below:
Black mark portion (1):
16% or less
Non black mark portion (2):
85% or more
The reflecting rate means the value which is measured with a Macbeth density meter (PCMII) D filter.
P
a
per f
eed dir
e
c
tion
Units: mm
3 to 5
30 to 300
15 or
more
Preprintable area
21.25
21.25
(1)
(2)
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