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EPSON Stylus Pro 7000 Revision B
Adjustment Self-Diagnostic Mode Menus 169
SENSOR ADJUSTMENT
After replacing the C299 MAIN board or one of the sensors: P_EDGE,
P_FRONT and P_REAR, you need to adjust the corresponding volume
(variable resistor) on the main board to determine the correct detection level
of sensors.
Proceed to the detailed description for the particular sensor you replace, or
read all sections if you replace the main board.
CHECK
POINT
The LCD will display “Sen:[sensorname]AD ttt vvv”
ttt = threshold; 0E0~0E8; ideal = 0E0
vvv = volume; 040 or more
Make sure that the vvv signal level indicated on the LCD is
over 040 and the ttt signal level indicated on the LCD is
between 0E0~0E8.
CAUTION
When you make these adjustments, make sure to avoid
strong light (sun-light) around the printer. These sensors
are light-sensitive and may not function properly under
such conditions. It is recommended to remove the
housing before performing this adjustment to ensure light
is reflected evenly off the paper.
Make sure there is no dust or foreign substance on both
the paper and sensor.
When performing sensor adjustment, make sure paper is
loaded and parked above the sensor (above the guide
lines as well as the platen).
If you need to adjust the volume of the sensors on the
Main board, make sure the driver does not touch the
metal part of the board. (Preferably, use a non-conductive
screwdriver.)
Before adjusting the sensor volume, make sure the printer
has firmware version “B0298C” or later. Earlier versions
do not support sensor volume adjustment. See “Firmware
Update” on page 162 for more information. To determine
the release date of the firmware, see the explanation
below.
B0298C:
B0 = SP-7000
28 = day of month
9 = last digit of year
C = month (16-decimal; 1 = January, 2 = February,.... A =
October, B = November, C = December)