Brother MFC-L8850CDW Service Manual

2-59
Confidential
■ Error code 6E00
The develop release sensor detected the developer roller disengagement or engagement failure.
■ Error code 6F00
Machine detected that supplied power was unstable. (Less than 100 times)
< User Check >
- Turn the power switch OFF/ON.
- Insert the filter into the power supply.
■ Error code 7000
After the registration rear sensor detects paper pass, the eject sensor does not detect paper
pass.
< User Check >
- Remove the jammed paper.
Toner Error
One or more Toner Cartridges are not detected. Pull out and reinsert all 4
Toner Cartridges.
Step Cause Remedy
1 Connection failure of the develop
release sensor harness
Reconnect the develop release sensor
harness.
2 Develop release sensor failure Replace the develop release sensor PCB
ASSY.
3 Develop release clutch failure Replace the develop release drive unit.
4 Main PCB failure Replace the main PCB ASSY.
Print Unable ZC
Turn the power off and then back on again.
Step Cause Remedy
1
The power supply waveform is
incorrect
Install a voltage stabilizer in the power
supply part.
Jam Inside
Open the Front Cover, pull out all four drum and toner cartridge assemblies
and remove the jammed paper.
Step Cause Remedy
1 Foreign object inside machine Remove the foreign object.
2 Eject actuator that has come off
or that has been caught
Re-assemble the eject actuator.
3 Fuser cover installation failure Re-assemble the fuser cover.
4 Connection failure of the eject
sensor PCB harness
Reconnect the eject sensor PCB harness.
5 Fuser drive gear Z25 damaged Replace the fuser drive gear Z25.
6 Process related feed gear
damaged
Replace the process drive unit.
7 Paper feed related gear
damaged
Replace the main drive unit.
8 Eject sensor failure Replace the eject sensor PCB ASSY.
9 Fuser unit failure Replace the fuser unit.
10 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