Brother MFC-9840CDW Service Manual

Confidential
1-42
3.3 Paper Jam
Paper jam in the paper tray and front cover
Step Cause Check
Result
Remedy
1 Belt unit
malfunction
Does the belt unit move
correctly?
No Replace the belt unit.
2 Registration front
actuator move
smoothly or
catching in some
position
Does the registration front
actuator move smoothly?
No Re-assemble the
registration front actuator.
3 T1 registration
front sensor
failure
Does T1 registration front
sensor move smoothly?
(Check it following the
procedure described in
“Maintenance mode 32”.)
No Replace the front door
unit ASSY.
Paper jam in the back cover and paper eject section
Step Cause Check
Result
Remedy
1 Foreign object
around fuser unit
Is there a foreign object
around the fuser unit?
Yes Remove the foreign
object.
2 Paper eject ASSY
malfunction
Is each pinch roller of the
paper eject ASSY
attached to each paper
eject roller properly?
No Replace the paper eject
ASSY.
3 Paper eject
actuator failure
Does the paper eject
actuator move smoothly?
Is it damaged?
No Replace the fuser unit.
Paper jam in the DX paper feeding section
User Check
- Use the A4 size paper.
- Use paper which has not curled.
- Do not use too thin paper.
- Check that the DX paper size (A4/Letter) switch lever of the DX feed ASSY is placed in the
correct position.
Step Cause
Check Result Remedy
1
Deformation of
paper guide DX
on the bottom of
the paper tray
Is the paper guide DX
deformed?
No Replace the paper tray.
2
DX feed ASSY
failure
Is the DX feed ASSY
deformed?
Do the rollers of the DX
feed ASSY move
correctly?
No Replace the DX feed
ASSY.

Brother MFC-9840CDW Specifications

General

Print technology	Laser
Maximum resolution	600 x 2400 DPI
Economical printing	Yes
Time to first page (black, normal)	16 s
Time to first page (color, normal)	17 s
Print speed (black, normal quality, A4/US Letter)	20 ppm
Scan to	E-mail, FTP, OCR, USB
Scanner type	Flatbed scanner
Grayscale levels	256
Input color depth	48 bit
Maximum scan resolution	19200 x 19200 DPI
Optical scanning resolution	1200 x 2400 DPI
Copier resize	25 - 400 %
Maximum copy resolution	1200 x 600 DPI
N-in-1 copy function (N=)	4, 9, 16, 25
Copy speed (black, normal quality, A4)	16 cpm
Faxing	Mono faxing
Fax memory	400 pages
Modem speed	33.6 Kbit/s
Fax speed dialing (max numbers)	300
Total input capacity	250 sheets
Total output capacity	150 sheets
Multi-Purpose tray input capacity	50 sheets
Auto document feeder (ADF) input capacity	35 sheets
Internal memory	128 MB
Sound power level (standby)	30 dB
Sound pressure level (printing)	54.5 dB
Custom media sizes	(69.9 - 216mm) - (116 - 406.4mm)
Dimensions (WxDxH)	530 x 539 x 520 mm
Networking features	10/100Base-TX
Wireless technology	IEEE 802.11b/g
All-in-one functions	Copy, Fax, Scan
Maximum internal memory	0.640 GB
Color all-in-one functions	copy, print, scan
Media weight (tray 1)	60 - 105g/m2
Paper tray media types	Bond paper, Envelopes, Labels, Plain paper, Recycled paper
Non-ISO print media sizes	Executive (184 x 267mm), Folio (media size), Legal (media size), Letter (media size)
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5, B6
JIS B-series sizes (B0...B9)	B5
Maximum ISO A-series paper size	A4
Multi-Purpose Tray media weight	60 - 163 g/m²
Security algorithms	LEAP
Supported network protocols (IPv4)	TCP/IP (IPv4 & IPv6)
Standard interfaces	USB 2.0
USB 2.0 ports quantity	1
Bundled software	ScanSoft PaperPort (Win) NewSoft Presto! PageManager (Mac)
Power consumption (PowerSave)	36 W
Power consumption (average operating)	515, 100 W
Package weight	45800 g
Digital sender	No
Maximum duty cycle	3000 pages per month
Market positioning	Business