(4) Printing ink (printing surrounding mark fields)
①
Near-infrared sensor (for pencil marks)
i. Printing of marking frames and dotted lines: Print using ink with a PCS
value of 0.15 or lower.
ii. Printing of timing marks: Print using ink with a PCS value of 0.85 or
higher.
*PCS values are measured at a spectral band of B900 with a read
sensor with a wavelength of 940 nm.
②
Visible light sensor (for pencil or ball-point pen marks)
i. Printing of marking frames and dotted lines: Print using ink with a PCS
value of 0.15 or lower.
ii. Printing of timing marks: Print using ink with a PCS value of 0.85 or
higher.
*PCS values are measured at a spectral band of B900 with a read
sensor with a wavelength of 660 nm.
(5) Printing position accuracy
Parallelism
Adjust printing parallelism for timing marks and data
marks 0.2mm or less based on the cutting edge of the
timing mark side.
Perpendicularity Adjust printing perpendicularity for timing marks and
data marks 0.2mm or less based on the cutting edge of
the timing mark side.
Other
Adjust to ±0.2mm or less of specified measurements
unless otherwise specified.
(6) Prohibited printing zones
Do not print between timing marks, or between the top-end (bottom-end)
timing mark and the top edge (bottom edge) of the mark sheet.
Top-end margin*: 9mm or more from the top edge to the first timing mark.
Bottom-end margin: 9mm or more from the last timing mark to the bottom
edge.
Side margin:
4mm or more on the opposite side of the sheet’s
standard edge.
*For IBM card size, top end margin is 5mm or more,
bottom- end margin is 6mm or more
(7) Direction of paper grain
Feed paper in the direction of its grain to eliminate curling.
Appendix
■
Sheet creation reference
Feeding direction
Paper grain direction
Timing mark
：Prohibited printing zones.
4mm以上
-
ii
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