Service manual

Page 2-29
Section 2. Configuration
PN 9001080
Rev. A
SATO M-8485Se Standard Print Engine
Service Manual
EYE - When setting the "EYE" threshold, the voltage must be measured with nothing but
the label under the sensor and then again with the printed "eye" mark under the sensor.
The formula to be used for this is:
(High Voltage Level + Low Voltage Level) x 0.5 = Start Value
STEP PROCEDURE
1. Insert a label into the sensor and close the Label Hold-Down. Make sure the
printed "eye" mark in not under the sensor. Record the voltage shown on the
top line of the LCD panel. This line should have the message "EYE" on the top
line (DIP switch DSW2-2 = ON).
2. Now pull the label forward until the "eye" mark is positioned under the sensor
(the voltage reading shon on the top line of LCD panel. The voltage ranges
measured should be within the following ranges:
Label Only = 0.3 - 0.5V
Eye-mark =Equal to or greater than 1.2V above the low
value.
If the measured values are outside this range, you may have trouble finding a
value that will work properly under all conditions. If this is the case, a higher
quality label may be needed to get adequate performance or see Section 4.4.
3. Calculate the starting point voltage using the formula.
4. Use the LINE key to step the counter to the desired setting. The display will
increment one step for each time the LINE key is pressed. If the LINE key is
held down for more than two seconds, it will automatically go into the fast
scroll mode. The reading will advance to a setting of 3.3 (the maximum
voltage) after which it will automatically wrap and start at "0.0" again. If a
value of "0.0" is set, the printer will automatically set the level each time the
printer is powered on with labels loaded or the head is closed.
5. Once the setting is correct, pressing the FEED key will accept the setting and
advance to the Auto Online Feed display.
eye [x.xv]
input [x.xv]
LCD Panel Printer — Service Mode
Eye [X.XV]
Input [X.XV}