Brother MFC-8220 Service Manual

MFC-8220
SERVICE MANUAL
6-21
M-3 Main motor failure
Possible cause Step Check Result Remedy
Failure of
connector
1 Is the connection of connector
CN9 on the engine PCB
correct?
No Reconnect the connector.
Main motor 2 Is the problem solved by
replacing the main motor?
No Replace the main motor.
Engine PCB 3 Is the problem solved by
replacing the engine PCB?
No Replace the engine PCB.
Main PCB 4 Is the problem solved by
replacing the main PCB?
No Replace the main PCB.
M-4 No paper supplied
Possible cause Step Check Result Remedy
Separation pad /
paper pick-up
roller failure
1 Is the surface of the separation
pad or the paper pick-up roller
dirty or worn out?
Yes 1) Clean the surface of the
separation pad or paper
pick-up roller.
2) Replace the separation
pad or paper pick-up roller.
Failure of
connector
2 Is the contact of the solenoid
connector on the engine PCB
good?
No Reconnect the connector.
Engine PCB
circuit
3 Set paper in the manual feed
tray and make a test print by
pressing the control panel
button.
No Replace the engine PCB.
Paper pick-up
clutch solenoid
Does the voltage between pins
2 (solenoid) and 1 (24V) of the
CN16 connector on the engine
PCB change from approx. 24V
DC to 0V within the specified
time?
Yes Replace the paper pick-up
clutch solenoid.
Main PCB 4 Is the problem solved by
replacing the main PCB?
No Replace the main PCB.
M-5 Insufficient output from high-voltage power supply unit
Possible cause Step Check Result Remedy
High-voltage
contact
1 Do any of the terminals on the
high-voltage contacts have dirt
or contact burns?
Yes Clean the terminals.
High-voltage
power supply
PCB
2 Check the connections of the
connector between the high-
voltage power supply and the
engine PCB are secured
correctly.
Yes Replace the high-voltage
power supply PCB.
No Reconnect the connector
between the high-voltage
power supply and the engine
PCB.

Brother MFC-8220 Specifications

General

Type	all in one
Tray Capacity	250
Automatic Document Feeder Capacity	30 sheets
Paper Size	letter, legal, a4, b5, a5, b6, a6, exe
Paper Handling	up to 250 sheets
Mono Print Speed	21 pages per minute
Print Resolution Mono	up to 2400 x 600
Maximum Number of Pages Per Month	up to 20, 000
Scanner Type	sheetfed
Scan Resolution	up to 300 x 600
Copier Resolution Mono	up to 600
Fax Function	yes
Cartridges	n/a
Number Of Cartridges	2
Internal Memory	yes
Network	not applicable
Connectivity	parallel, usb 2.0
OS Compatibility	pc: windows 95, 98, 98se, me, nt workstation 4.0, 2000 professional or xp, mac: os 8.6 to 9.2, os x 10.1, 10.2.1 to 10.3 or later, available usb 2.0 or parallel port
Mobile Devices Connection	no

Weight and Dimensions

Height	13.2 inches
Width	17 inches
Net Weight	25.6 pounds