Brother MFC-9340CDW Service Manual

5-53
Confidential
1.4.28 Continuous adjustments of density and registration sensor
(Function code 73)
<Function>
This function allows you to perform the following functions consecutively:
Sensitivity adjustment of density sensor (Function code 72), Developing bias voltage
correction (Function code 83), and
Adjustment of color registration (Adjustment of inter-color
position alignment) including registration
sensor calibration (Function code 66).
<Operating procedure>
(1) Press the 7 and 3 keys in this order in the initial state of the maintenance mode.
"DDRPT2" is displayed on the LCD.
(2) Press the or key to display "DDR" on the LCD.
(3) Press the SET key. "PLS WAIT 72" is displayed on the LCD and each adjustment is
performed in the following order.
1) Sensitivity adjustment of density sensor (Function code 72)
LCD: PLS WAIT 72
2) Developing bias voltage correction (Function code 83)
LCD: PLS WAIT 83
3)
Adjustment of color registration (Adjustment of inter-color position alignment)
including registration
sensor calibration (Function code 66)
LCD: PLS WAIT 66-1
(4) When all operations are completed, "COMP" is displayed on the LCD. Pressing the
key and Stop key in this order and the machine returns to the initial state of the
maintenance mode.
Note:
- If each adjustment fails, "ERROR**" is displayed on the LCD and the adjustment is
stopped. ("**" indicates the corresponding function code.) If you press the key with
"ERROR**" displayed, the details of the error are shown.
- If the details of the error indicate one of the following, scratch or dirt on the belt unit or the
drum units may cause the error: "FAILED REGIST", "NG * L:C080 R:M105",
"NG R-L:C030", "NG PWM L120 R180", "NG PWM R-L:080", "NG CNT R100 L100",
"NG S-POSI R:080", "NG SKEW:120", "NG PWM R-P L:080", "NG XMARGIN:M191".
In this case, replace the belt unit and the drum units of all four colors with the ones that do
not have any scratch or dirt, and perform the function from step (1) again. If the function
is completed successfully, mount the removed belt unit and four drum units.

Brother MFC-9340CDW Specifications

Printing Specifications

print speed (black)	up to 23 ppm
print speed (color)	up to 23 ppm
print resolution	up to 600 x 2400 dpi
automatic duplex printing	Yes

Copying Specifications

copy speed (black)	up to 23 cpm
copy speed (color)	up to 23 cpm
copy resolution	600 x 600 dpi
copy reduction/enlargement	25% - 400% in 1% increments

Scanning Specifications

scanner type	Color Flatbed with ADF
document glass size	8.5” x 11.7”
scan resolution (optical)	1200 x 2400 dpi
scan resolution (interpolated)	19200 x 19200 dpi

Fax Specifications

fax modem	33.6k bps
fax page memory	up to 500 pages
speed dial locations	200

Memory and Interfaces

memory (standard/max)	192MB / 192MB
standard interfaces	Wireless 802.11b/g/n, Ethernet, Hi-Speed USB 2.0
usb direct interface	Yes

Supplies and Accessories

black toner cartridge yield	2, 500 pages
cyan toner cartridge yield (standard)	1, 400 pages
magenta toner cartridge yield (standard)	1, 400 pages
yellow toner cartridge yield (standard)	1, 400 pages
cyan toner cartridge yield (high capacity)	2, 200 pages
magenta toner cartridge yield (high capacity)	2, 200 pages
yellow toner cartridge yield (high capacity)	2, 200 pages
drum unit yield	15, 000 pages
belt unit yield	50, 000 pages
waste toner box yield	50, 000 pages
multi-purpose paper	Letter, 500 sheets