Brother FAX-545, Service Manual

Page: 104 / 198

8-15 Confidential
8.4.8 Sensor Operational Check (Function code 32)
„
Function
This function allows you to check that the seven sensors (document front sensor, document rear
sensor, cover sensor, hook switch*, registration sensor, ribbon sensor, and cam switch) operate
correctly.
* Not provided on the FAX-T102.
„
Operating Procedure
(1) Press the 3 and 2 keys in this order in the initial stage of the maintenance mode.
The machine sounds 1100 Hz and 400 Hz tones cyclically through the following volumes for
testing the speaker:
To disable the speaker, press the Menu/Set key. With the key, you may toggle the speaker on
and off.
If the sensing status are as listed below, the LCD shows the following:
"FRERCPHRXCHHK 0"
Given below is the relationship between the LCD indication, sensor name and sensing status.
LCD Sensors Sensing status
FRE Document front and rear sensors No document detected
RC Cover sensor Control panel ASSY closed
PH Registration sensor Recording paper loaded
RX Ribbon sensor Ribbon cartridge loaded
CH Cam switch (in the drive unit) Switching cam switch ON
HK Hook switch* On-hook state
* The FAX-T102 has no hook switch, but it displays the HK.
(2) Change the detecting conditions and check that the displayed letters disappear. For example,
insert a document through the document front (or rear) sensor and check that the "F" ( or "E")
of the FRE disappears.
(3) Press the Stop/Exit key.
The "OK:START NG:*KEY" appears on the LCD.
(4) Press the Fax Start key.
The machine returns to the initial stage of the maintenance mode.
In this area a numeral appears, indicating the
number of communications records printed
out at the factory for testing.