Service manual

Page 2-28
Section 2. Configuration
PN 9001080
Rev. A
SATO M-8485Se Standard Print Engine
Service Manual
LCD Panel Printer — Service Mode
GAP - When setting the "GAP" threshold, the voltage shown on the top line of the display
must be measured with nothing but the backing in the sensor and then again with a label
still attached to the backing. The formula to be used for setting the threshold is:
(High Voltage Level + Low Voltage Level) x 0.5 = Start Value
STEP PROCEDURE
1. Insert a label still attached to the backing into the sensor and close the Label
Hold-Down. Record the voltage shown on the top line of the LCD panel.
This line should have the message "GAP" on the top line (DIP switch DSW2-2
= OFF). Make sure the label is all the way under the sensor.
2. Strip the label from the backing and insert the backing strip under the sensor
and close the Label Lid. Record the voltage shown on the top line of the LCD
panel. The voltage ranges measured should be within the following range.
Backing without label = 0.3 - 0.5V
Backing with label = 1.0V >/- 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 4.3.
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 Online Feed display.
gap [x.xv]
input [x.xv]
Gap [X.XV]
Input [X.XV}