(1) Black Mark Pitch (Dimension A)
Black mark pitch can be set to a dimension of A = 75 to 300 mm.
Note 1) Black mark pitches can be set to the above describe range, but it is recommended to use a
pitch that is at least 80 mm, in consideration of the variation in printing positions.

(2) Black Mark Dimensions
See the following drawings for the dimensions of black marks to be printed.

(3) PCS Value
The PCS value of black marks to be printed should be a minimum of 0.90.
Note 1) The PCS value of black marks can cause page skipping problems or improper page length
detection if they do not meet the aforementioned specifications.
For that reason, always ensure that the PCS value is met.

(4) Top Margin (Dimension B)
Set the printing range, leaving plenty of top margin from the cutting position.
When not reversing paper feed, a top margin with a minimum total of 19 mm is recommended with the
distance of 15 mm from the thermal head heating elements to the cutting position and the empty paper
feed amount (1 line = 4 mm empty feed) considering the motor acceleration step.
If you want a smaller top margin setting, change the memory switch settings. However, in that case, it
is recommended to set the top margin of the empty paper feed amount (1 line = 4 mm empty feed)
considering the motor acceleration step.

Notes 1) If the top margin is not sufficiently taken, problems, such as the page being skipped, can occur.
             So, you must set for plenty of top margin.
          2) The setting of the printing range should not exceed the black mark pitch.

(5) Bottom Margin (Dimension C)
Set the printing range leaving plenty of bottom margin from the trailing edge of the printing range to the
black mark.
It is necessary to consider the printing precision of the black mark, the printing TOP accuracy (±2 mm of
the standard printing position), the setup ambient temperature of the printer, and part wear-out to set
the bottom margin. It is recommended that the following bottom margin be secured to set the printing
range.

Bottom Margin (Dimension C) ≥ 3 mm + (Dimension A × 3%)

Notes 1) If the bottom margin is not sufficiently taken, problems, such as the page being skipped, can
             occur. So, you must set for plenty of bottom margin.
          2) The setting of the printing range should not exceed the black mark pitch.

(6) Example Setting of the Printing Region
The following shows a printing range setting example when not reverse feeding recording paper.

• When Black Mark Pitch (Dimension A) is 100 mm:
The top margin is set to 20 mm.
The bottom margin is set to 3 mm + (100 mm × 0.03) = 6 mm.
According to the above, it is necessary to set the printing range to less than 100 mm – 20 mm – 6
mm = 74 mm.

Note 1) If you have any questions regarding how to set the printing range for the black mark, consult
with STAR Micronics.