Brother MFC-L8600CDW Service Manual

5-67
Confidential
1.3.35 Developing bias voltage correction (Function code 83)
<Function>
This function performs developing bias voltage correction to fix the density of each color toner
when printed color is not correct.
<Operating procedure>
(1) Press the 8 and 3 keys in this order in the initial state of the maintenance mode.
The machine displays “PLS WAIT 83” on the LCD and starts the developing bias voltage
correction.
(2) When developing bias voltage correction is completed, “MODE KYMC ****” is displayed
on the LCD. When you press the Mono Start key, the machine returns to the initial state
of the maintenance mode.
(* represents any number from 0 to 3.)
* # indicates the toner color (Y, M, or C) of which cartridge became empty.
Note:
Before this function is performed, there is a need that the “1.3.28 Sensitivity adjustment of
density sensor (Function code 72)” in this chapter has been done more than once. When
performing this maintenance mode 83 after replacing the main PCB ASSY, make sure to
perform the “1.3.28 Sensitivity adjustment of density sensor (Function code 72)” first.
Note:
If developing bias voltage correction fails, “ERROR 83” is displayed on the LCD. Display the
error message by pressing the key, and take the following measure that corresponds to
the error message.
Error message Measure
FAILED DEVBIAS Remove the error factors with the following operations and press the
Mono Start key to clear the error.
- Re-insert the toner cartridge in the correct position.
- Replace the toner cartridge.
- Replace the drum unit.
- Replace the waste toner box.
- Replace the belt unit.
- Replace the registration mark sensor unit.
TONER EMPTY #
*
Replace the empty toner cartridge and press the Mono Start key to
clear the error. After the sensitivity adjustment of the density sensor
(Function code 72) is performed, the developing bias voltage value
is compensated again.
Cover is Open Close the front cover.
Replace Toner Replace the black toner cartridge and press the Mono Start key to
clear the error. After the sensitivity adjustment of the density sensor
(Function code 72) is performed, the developing bias voltage value
is compensated again.

Brother MFC-L8600CDW Specifications

General

Type	all in one
Color	white
Tray Capacity	300
Automatic Document Feeder Capacity	35 sheets
Paper Size	8.5" x 14"
Paper Handling	up to 300 sheets
Color Print Speed	30 pages per minute
Mono Print Speed	30 pages per minute
Print Resolution Color	up to 2400 x 600
Maximum Number of Pages Per Month	up to 40, 000
Scanner Type	flatbed
Scan Resolution	up to 2400 x 1200
Cartridges	tn331bk, tn336bk, tn331y, tn336y, tn331m, tn336m, tn331c, tn336c, dr331cl
Number Of Cartridges	4
Internal Memory	yes
Network	wired, wireless
Connectivity	usb, google cloud print
OS Compatibility	windows, mac os, linux
Mobile Devices Connection	yes

Weight and Dimensions

Height	16.1 inches
Width	19.8 inches
Net Weight	63.5 pounds