SATO LCD Panel User manual

Page2-25
Section 2. Configuration
PN 9001094
Rev. A SATO M-8400RVe Service Manual
STEP PROCEDURE
1. Press the LINE key while simultaneously turning the power on.
When the printer emits one long beep, release the LINE key to display
the first screen.
. Press the LINE key twice to enter the Service Mode.
The Service Mode display indicates that the printer is in the Service
Mode. To advance to the first selection, press the FEED key.
LCD Panel — Service Mode
The Service Mode allows the operator to set up the basic operation parameters of the
printer and is entered from the Advanced Mode.
ADVANCED MODE
To Enter Advanced Mode:
service mode
The M-8400RVe printer determines the location of the leading edge of the label by
measuring the difference between light levels when it sees either a label gap or a black "EYE"
mark. This adjustment allows you to manually set the threshold voltage level between the
maximum and minimum light levels. DIP switch DSW - selects the sensor type. If DSW -
is in the OFF position, the setting will be for a See-Thru (or Gap) sensor and the LCD will
display "GAP" on the top line along with the current setting. If DSW - is in the ON position,
the LCD will display "EYE" on the top line with its current setting. If the value entered for the
bottom line setting is "0.0V", then the printer will automatically calculate the setting when
the first label is fed after the printer is powered on or the head is closed. There are some
instances where the automatically calculated value must be adjusted to ensure reliable label
feeding, such as when the backing opacity or the reflectance of the "EYE" mark varies
significantly within a roll of labels or between label rolls. In these instances the value
should be set using the following procedures.
Gap [X.XV]
Input [X.XV} gap [x.xv]
input [x.xv]

Page2-26
Section 2. Configuration
SATO M-8400RVe Service Manual PN 9001094
Rev. A
LCD Panel — 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 DSW - = OFF). Make sure the label is all the way
under the sensor.
. 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 = 0.5V or less
Backing with label = 1.0V 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.
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}

Page2-27
Section 2. Configuration
PN 9001094
Rev. A SATO M-8400RVe 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 DSW - = ON).
. Now pull the label forward until the "eye" mark is positioned under
the sensor (the voltage reading should be at its highest point). Record
the voltage shown on the top line of the 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. V
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.
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 — Service Mode
Eye [X.XV]
Input [X.XV}