Epson 7000 service manual Sensor Adjustment

EPSON Stylus Pro 7000 Revision B

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.

CH E The LCD will display “Sen:[sensorname]AD ttt vvv” P O I 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.

Proceed to the detailed description for the particular sensor you replace, or read all sections if you replace the main board.

CA U „ 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)

Adjustment Self-Diagnostic Mode Menus 169