Brother DCP-L8400CDN Service Manual page 424

1.3.22 Adjustment of color registration
(Adjustment of inter-color position alignment) (Function code 66)
<Function>
This function allows service personnel to forcibly activate the adjustment of color registration
(adjustment of inter-color position alignment) function which is usually executed automatically
under a specified condition. If adjustment of inter-color position alignment (auto) fails because
toner reaches its life, etc, you can adjust inter-color position alignment manually. The end
users are allowed to perform "Adjustment of inter-color position alignment without registration
sensor calibration (auto)", "Printing of misregistration correction chart" and "Adjustment of
inter-color position alignment (manual)" only.
Note:
If an error occurs after executing Maintenance mode 66, upgrade the firmware to the latest
one. (Refer to
and High-voltage Firmware)" in Chapter
Maintenance mode 66 again.
This function has the following functions.
Function
Adjustment of inter-color
position alignment
without registration
sensor calibration (auto)
Printing of misregistration
correction chart
Input of sensor offset
value
Adjustment of inter-color
position alignment
(manual)
Adjustment of inter-color
position alignment
including registration
sensor calibration (auto)
"1.1 Installing the Firmware (Sub Firmware, Panel Firmware, Main Firmware,
Automatically correct misregistration
between colors that occurs as the
number of printed pages increases and
time passes.
Print the chart that you check for an input
value when manually correcting
misregistration between colors.
Unavailable for maintenance work.
Using the chart, manually correct
misregistration between colors that occurs
as the number of printed pages increases
and time passes. This is performed when
automatic adjustment fails.
After the sensitivity adjustment of
registration sensor, correct misregistra-
tion between colors that occurs as the
number of printed pages increases and
time passes.
4.) After upgrading the firmware, execute
Description
5-40
LCD
REGISTRATION
PRINT CHART
OFFSET ADJUST
SET
REGISTRATION
ADD
REGISTRATION
Confidential