Brother MFC-9330CDW Service Manual

2-60
Confidential
■ Error code 7700
After the first side is printed in 2-sided printing mode, the registration front sensor does not
detect paper pass after a set period of time.
<User Check>
- Remove the jammed paper.
■ Error code 7900
After the manual feed sensor detects pass of paper fed from the manual feed slot, the
registration rear sensor does not detect paper pass after a set period of time. Or after the
manual feed sensor detects paper pass, the registration rear sensor detects paper pass within
a set period of time.
<User Check>
- Remove paper that is crammed in the manual feed slot.
- Check if the paper whose thickness is not prescribed is used.
- Remove the jammed paper.
- Check if paper is removed after manual feed printing is started.
Jam 2-sided
Pull the paper tray completely out of the machine. Check inside the machine
towards the rear. Or open the Back Cover to remove the jammed paper.
Step Cause Remedy
1 Foreign object inside the duplex
path
Remove foreign object.
2 Fuser cover installation failure Re-assemble the fuser cover.
3 Back cover installation failure Re-assemble the back cover.
4 Main PCB failure Replace the main PCB ASSY.
Jam Manual Feed
Pull out the jammed paper from Manual Feed and press Start
Step Cause Remedy
1 Foreign object inside the manual
feed path
Remove foreign object.
2 Registration rear actuator that
has come off or that has been
caught
Re-assemble the registration rear
actuator.
3 Registration clutch harness
connection failure
Check the registration clutch harness
connection and reconnect it.
4 Registration front/rear/manual
feed sensor PCB harness
connection failure
Check the registration front/rear/manual
feed sensor PCB harness connection and
reconnect it.
5 Registration rear sensor failure Replace the paper feed unit.
6 Registration clutch failure Replace the registration clutch.
7 Main PCB failure Replace the main PCB ASSY.

Brother MFC-9330CDW Specifications

Print Specifications

print speed black	up to 23 ppm
print speed color	up to 23 ppm
print resolution	up to 600 x 2400 dpi

Copy Specifications

copy speed black	up to 23 cpm
copy speed color	up to 23 cpm
copy resolution	600 x 600 dpi

Scan Specifications

scan resolution optical	1200 x 2400 dpi
scan resolution interpolated	19200 x 19200 dpi
document glass size	8.5” x 11.7”

Fax Specifications

fax modem speed	33.6k bps
fax page memory	up to 500 pages
speed dial locations	200

Paper Handling

auto document feeder capacity	up to 35 pages
paper size maximum	up to 8.5” x 14” (legal)
standard paper capacity	250 sheets

Power and Energy

deep sleep mode power consumption	<2W
automatic duplex printing	Yes
energy star qualified	Yes