Brother MFC-L8850CDW Service Manual

2-51
Confidential
■ Error code 4F01
The new toner sensor of the toner cartridge (Black) could not detect a new cartridge properly.
Error code 4F02
The new toner sensor of the toner cartridge (Yellow) could not detect a new cartridge properly.
Error code 4F03
The new toner sensor of the toner cartridge (Magenta) could not detect a new cartridge
properly.
Error code 4F04
The new toner sensor of the toner cartridge (Cyan) could not detect a new cartridge properly.
< User Check >
- Replace the toner cartridge with a new toner cartridge again.
- If the place where the machine is installed is not flat, relocate the machine to a flat place.
Cartridge Error
Put the Toner Cartridge back in.
Cartridge Error
Put the Yellow #C Toner Cartridge back in.
Cartridge Error
Put the Magenta #C Toner Cartridge back in.
Cartridge Error
Put the Cyan #C Toner Cartridge back in.
Step Cause Remedy
1
Connection failure of the new
toner sensor PCB harness
Reconnect the toner/new sensor PCB
harness.
2
New toner actuator that has
come off or that has been caught
Re-assemble the new toner actuator.
3
New toner sensor failure Replace the toner/new sensor PCB ASSY.
4
Main PCB failure Replace the main PCB ASSY.

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