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REG. Mark (Registration mark)
DC-645 automatically compensate for image drift, one of the common problems on digital printers. It detects
the image drift caused on each page by reading REG. mark with built-in CCD and adjust the cut / slit / crease
position accordingly.
To use this function, each documents must have REG, mark printed on them. Please refer to following
instructions for specifications and position of REG. mark.
Paper feed direction
Lead mark
Correct for image drift
in this direction
Side mark
Correct for image drift
in this direction
1) Specifications
REG. mark consists of 2 straight & perpendicular lines.
line length
: 5 mm or more / each
line thickness : 0.4 mm or more / each
Use pen tool etc. of your software application to draw 2 straight & perpendicular lines.
2) Position
Paper feed direction : The whole REG. mark should be within 3 mm ~ 20 mm from the lead edge.
Paper width direction : The whole REG. mark should be within 3 mm ~ 20 mm from the right edge.
3mm
5mm or more
0.4mm or more
5mm
or more
20mm
3mm
REG. Mark
Position Range
REG. Mark
Before Preparing Document
Summary of Contents for DC-645
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