Brother FAX100 Service Manual page 121

3.3.7 Sensor operational check
Function
This function allows you to check that the six sensors (document front sensor, document rear
sensor, cover sensor, PE sensor, cutter sensor and hook switch sensor) operate correctly.
The LCD shows the "FRE RC PE CH HK" when
- the document front and rear sensors detect no paper (FRE),
- the recording paper cover is closed (RC),
- the PE sensor detects paper loaded (PE),
- the cutter sensor detects that the cutter is placed in the home position (CH), and
- the hook switch sensor detects the on-hook state (HK).
Operating Procedure
(1) Press the 3 and 2 keys in this order in the initial maintenance mode.
The LCD should show "FRE RC PE CH HK" if the detecting conditions of the six sen-
sors are as defined above.
(2) Change the detecting conditions (e.g. insert paper through the document sensors, open
the recording paper cover, remove the recording paper, shift the upper blade of the au-
tomatic cutter out of its home position, and lift up the handset), and then check that the
indication on the LCD changes according to the sensor states.
(3) To stop this operation and return the equipment to the initial maintenance mode, press
the STOP button.
3.3.8 CCD scanner area setting
Function
The equipment sets the CCD scanner area and stores it into the E
Operating Procedure
(1) Press the 5 key twice in the initial maintenance mode.
The "SCANNER AREA SET" will appear on the LCD.
The equipment checks and sets the area to be scanned.
If no error is noted, the equipment returns to the initial maintenance mode.
If any error is noted, the "SCANNER ERROR" will appear on the LCD. To return the
equipment to the initial maintenance mode, press the STOP button.
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