6-47
6. DIAG. TEST OPERATION
EO18-33006
6.3 PARAMETER SETTING MODE
NOTE:
The following operation cannot be performed unless the sensor type is changed by the issue
command or feed command.
(1)
Using the sensor adjustment in Diag. mode, measure the sensor voltage at the following four
points.
Label:
Print area Backing paper
Tag paper: Print area Black mark
Example:
[ R E F L E C T I V E ] 2 . 8 V
[ T R A N S M I S S I V E ] 4 . 1 V
Min. voltage at the backing paper
2
Min. voltage at the backing paper
2
A
A
B
C
(Min. voltage at the print area) - (Min. voltage at the black mark)
2
(2.8V)
(1.5V)
(4.4V)
(0.7V)
Label gap
Black Mark
Label
Backing Paper
Perforation
Backing Paper
Label
D
(2)
Using the following formula, calculate the threshold from the measured voltage:
When using labels (transmissive sensor):
Threshold = (Max. voltage at the backing paper) - (Voltage at the print area) - 0.7V
e.g.) 2.0V = 4.2V - 1.5V - 0.7V
When using perforated labels (transmissive sensor):
Threshold = (Max. voltage at the backing paper) -
-
e.g.) 2.2V = 4.4V - (2.8V/2) - (1.6V/2)
When using labels with black marks (reflective sensor):
Threshold =
e.g.)
0.4V = (1.5V - 0.7V)/2
