FENIX IMVICO
TK-41 OPERATION MANUAL
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3.6- OPTICAL MARK
The TK41 printer has the capability of using an Optical Mark Sensor to work with
paper which is pre-printed with an Optical Mark. To make use of this feature, the
Optical Mark Sensor must be enabled via hardware (See point
3.4.2-
PROGRAMMING MODE
).
The optical mark must be placed in the back of the paper, and in its right side as seen
in
Fig. 3.14.- Optical mark characteristics
.
The optical mark must satisfy the dimensions shown in
Fig. 3.14.- Optical Mark
Characteristics
.
The Optical Mark is detected at the position which the top edge of the Optical Mark
comes into approximately 2mm from the center of the Optical Mark sensor. After
detecting the Optical Mark, it is not detected for approximately 2cm.
The reflecting rate of the Optical Mark must be 10% or less, and the reflecting rate of
the white must be 75% or more. The reflecting rate means the value which is
measured with Macbeth density meter (PCMII) D filter.
At the factory the print starting position and the cutting position are set to the head
position and the cutter position respectively when the Optical Mark sensor detects the
Optical Mark.
The print starting position and the cutting position can be changed with the
GS ( F
command (See point
4- CONTROL COMMANDS
)
Fig. 3.14-
Optical Mark Characteristics.
Paper feed
direction
Print starting position (PP)
Cutting position (CP)
Center position
of the Optical
Mark Sensor
Approx. 2mm
33.6 m
m
17.6m
m
6mm
or more
8mm
or more
Appr
ox
. 2c
m
Optical Mark in
back side of paper
