Fine Adjustment Of Scan Start/End Positions (Maintenance Mode 54) - Brother MFC8440D Service Manual

7/13/2019
CHAPTER 7 MAINTENANCE MODE
3.11

Fine Adjustment of Scan Start/End Positions (Maintenance mode 54)

< Function >
This function is to adjust the scan start/end positions.
< Operating Procedure >
(1) Press the 5 and 4 keys in this order in the initial stage of the maintenance mode.
The "SCAN START ADJ." will appear on the LCD.
(2) The "1. ADF 2. FB" will appear.
Select one of them that you want to adjust the start position. If you want to adjust the
start position of the ADF, press 1 key, and if you want to adjust that of the FB unit,
press 2 key.
(3) Press the 1 or 2 key to display the present compensation level for the start position.
Compensation levels can be adjusted in 11 steps from +5 to –5 (mm).
(4) Press the left arrow key to increase compensation levels, and the right arrow key to
lower them.
Press the Stop button, and the machine returns to the initial state of the maintenance
mode without adjusting compensation levels.
(5) Press the Set button.
The "ACCEPTED" will appear on the LCD. One second later, the machine returns to
the initial stage of the maintenance mode.
NOTE:
The correlation between the scan start/end positions and compensation levels is shown
below.
http://slidepdf.com/reader/full/brother-8840d-service-manual
Brother 8840D Service Manual
Leading edge of document
-5
-4
-3
-2 -1
0
+1
+2
+3
+4
+5
-5
-4
-3
-2
-1
0
+1
+2
+3
+4
+5
Trailling edge of document
Fig.7-12
7-18
284/361