Brother SCANNERII, Operation, Service Manual & Parts List

Page: 8 / 16

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III . Setting the Scanner Adjustment and Test Mode
∗
With this equipment, because each scanner has its own individual characteristics and these are stored
in the memory element in the main PC board assembly, scanner adjustment and testing should always
be carried out if only the main PC board assembly is being replaced, or if the scanner (B5N-1771) is
being replaced. In any other case, the adjustment has already been made at the factory before the unit
is shipped, and does not need to be done again.
[Items Required for Adjustment]
Adjusting the scanner requires that the test picture be read. Copy the test picture found on page 8, and cut
out the picture along the dotted lines.
[Starting Up the Test Mode]
Pressing the main power switch while holding down the highest and lowest of the five operation switches
puts the scanner in the Adjustment and Test Mode.
[Adjusting the Scanner]
•
Set the test picture on the glass plate (see Fig. 1).
‚
Press the SCAN button. (The buzzer will sound once.)
ƒ
Scan the test picture while holding down the scanner button.
„
Press the SCAN button. (The buzzer will sound twice.)
…
Scan the test picture once again while holding down the scanner button.
∗
If there have been no internal problems with the adjustment at the point where step
…
is completed, the
power supply will shut off automatically.
If a message reading "No original found" is displayed after step
ƒ
or step
…
, press the
button and repeat the procedure starting from step
‚
. If the above message appears, the test picture
may not have been placed on the glass plate in the correct position.
Fig. 1
CORRECT
&REDO
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