Brother MFC-L8850CDW Service Manual

4-10
Confidential
5. IF YOU REPLACE THE HIGH-VOLTAGE
POWER SUPPLY PCB ASSY
■ What to do after replacement
- Installing the Firmware
- Continuous Adjustments of Density and Registration Sensor (Function code 73)
■ What you need to prepare
(1) USB flash memory
(2) A USB cable
(3) Create a temporary folder on the C drive of the computer (Windows
®
XP or higher).
(4) Service setting tool (BrUsbsn.zip)
Copy it into the temporary folder that has been created in the C drive. Extract the copied
file and execute “BrUsbsn.exe” file by double-clicking it.
(5) Download utility (Filedg32.exe)
Copy it into the temporary folder that has been created in the C drive.
(6) Maintenance printer driver (Maintenance_driver.zip)
When the maintenance printer driver is not installed, copy this file into the temporary
folder created on the C drive, and extract the copied file. Refer to “APPENDIX 3
INSTALLING THE MAINTENANCE PRINTER DRIVER” to install the driver.
(7) Firmware
5.1 Installing the Firmware
5.1.1 Checking firmware version
Check whether the firmware installed on the machine is the latest version in accordance with
“1.1.1 Checking firmware version” in this chapter. If the version is the latest, installing the
firmware is unnecessary. If the version is not the latest, install all the firmwares.
5.1.2 Installing the firmware
When each installed firmware is not the latest version, install the firmwares in accordance with
“1.1.2 Installing the firmware” in this chapter.
5.2 Continuous Adjustments of Density and Registration
Sensor (Function code 73)
Perform continuous adjustments of density and registration sensor in accordance with “1.3.29
Continuous adjustments of density and registration sensor (Function code 73)” in Chapter 5.
Sub firmware LZXXXX_$.djf
Panel firmware LZXXXX_$.djf
Main firmware LZXXXX_$.djf
High-voltage firmware LZXXXX_$.djf
LZXXXX: First six digits of the part number of the firmware
$: Alphabet representing the revision of the firmware.

Brother MFC-L8850CDW Specifications

General

Type	all in one
Color	white
Tray Capacity	300
Automatic Document Feeder Capacity	50 sheets
Paper Size	8.5"x14"
Paper Handling	up to 300 sheets
Color Print Speed	32 pages per minute
Mono Print Speed	32 pages per minute
Print Resolution Color	up to 2400 x 600
Maximum Number of Pages Per Month	unknown
Scanner Type	flatbed
Scan Resolution	up to 2400 x 1200
Copier Resolution Mono	up to 600 x 600
Copier Resolution Color	up to 600 x 600
Cartridges	tn331bk, tn331c, tn331m, tn331y
Number Of Cartridges	4
Internal Memory	yes
Memory Card	no
Network	wired, wireless
Connectivity	usb, google cloud print
OS Compatibility	windows, mac os, linux
Mobile Devices Connection	yes

Weight and Dimensions

Height	19.3 inches
Width	20.7 inches
Net Weight	67.4 pounds