22
Before Preparing a Document
The DC-646 automatically compensates 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 the built-in laser
sensor and adjusts the cut/slit/crease position accordingly.
When using REG mark, enter the REG mark position in a JOB and set
Read REG mark
is set.
To use this function, each document must have REG mark printed on it. Please refer to the following
instructions for speci
fi
cations and a position of REG mark.
1. Speci
fi
cations
REG mark consists of two straight and
perpendicular lines.
●
When
REG mark spec
is set to
Standard
:
Line length: 5 mm or more
Line thickness: 0.4 mm or more
●
When
REG mark spec
is set to
Bold
:
Line length: 10 mm
Line thickness: 2 mm or more
Document feed direction: The whole REG mark should be within 3 to 20 mm from the lead edge.
Document width direction: The whole REG mark should be within 3 to 20 mm from the right edge.
The
fi
gure below shows the best position
to print the REG mark.
REFERENCE
●
When
REG mark spec
is set to
Standard
:
2. Position
REG Mark (Registration mark)
Document feed direction
Lead mark:
corrects
for image drift in this
direction.
Side mark:
corrects
for image drift in this
direction.
Use a pen tool, etc. of your software application to draw two straight and perpendicular lines.
3 mm
3 mm
20 mm
6 mm
6 mm
20 mm
20 mm
3 mm
3 mm
20 mm
5 mm or more
5 mm
or more
0.4 mm or more
REG mark
position range
REG mark
