4-4 Phaser 7400 Color Printer Options Service ManualAdjusting Sensor Output After Sensor ReplacementPerform the following steps whenever you replace the Punch Controller Board,horizontal registration sensor (photosensor board/LED board), or waste full sensor(waste full photosensor board/waste full LED board):1. Locate DIP switches SW1001, SW1002, and SW1003 and LEDs LED1001,LED1002, and LED1003 on the Punch Controller Board.2. For DIP switch SW1001 on the Punch Controller Board, press shift bits 1through 4 as follows:3. Press switches SW1002 or SW1003 on the Punch Controller Board:■ Pressing either switch will adjust the sensor output.■ The adjustment is complete when all LEDs on the Punch Controller Boardare ON for LEDS LED1001, LED1002, LED1003.4. Shift all bits of DIPSW1001 to OFF (this action ensures that the LEDs willremain unaffected and the switch setting will have no further effect).SW1001LED1001LED1002LED10032 1 1 5 1 9J1003 J1004J1002 J1001 J1006 J1005J10071 4SW1002SW10031 51 1013 1s7400-270ON1 2 3 4s7400-535
