Printing Sequence
SNAP-recommended printing sequences:

• Offset: CMYK
  
  Note: Industry tests indicate that the CMYK laydown sequence
  yields the widest gamut for letterpress. In newspaper fl exography,
  yellow is laid down first so that it does not hide subsequent colors.

Image Registration on Press

• Registration must not exceed 0.012” of color in any direction, lateral, circumferential or skewed referenced to the black plate.
• Registration must not exceed 0.015” maximum between any two colors in any direction. This is equivalent to 1.5 rows of dots at 100 lpi, 90°.

Gray Bar Targets
Every print job should include a gray bar or a series of objective solid
and tint targets. Recommended gray bar values to produce a three-
color neutral gray and approximate black tint equivalent appear
below.

• The aim density represents the combined tint patch density as
  measured with each filter.
• The total range among the three ink densities should be +/- 0.03.

Final Output
Final Output Tone reproduction separation aim points for images
intended to reproduce as black-and-white or single-color images are:

If SNAP specifi cations have been followed, the screened tone values
should be:
Black-and-white or single-color images

Output materials should meet these additional
requirements: