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Brother MFC-9840CDW Service Manual

Brother MFC-9840CDW
491 pages
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Confidential
1-10
Error code 2A
Print Unable 2A
Turn the power off and then back on again.
Belt cleaner release sensor failure
Step Cause
Remedy
1 Rotation defective of release
shaft A of waste toner box.
Replace the waste toner box.
2 Harness connection failure
between belt cleaner release
sensor PCB and belt cleaner
release solenoid.
Check the harness connection between the belt
cleaner release sensor PCB and belt cleaner
release solenoid and reconnect them.
3 Belt cleaner release sensor
actuator performance
defective
Replace the belt cleaner release ASSY.
4 Belt cleaner release sensor
PCB failure
Check the sensor performance following the
procedure described in “Maintenance mode 32”. If
any problem occurs, replace the belt cleaner
release sensor PCB ASSY.
5 Belt cleaner release solenoid
failure
Replace the belt cleaner release ASSY.
6 Engine PCB failure Replace the engine PCB ASSY.
Error code 2B
Print Unable 2B
Turn the power off and then back on again.
Air intake fan (AIR) failure, or short-circuit of fuser unit fan (FU), LVPS fan (PS), or drum unit
fan (OPC)
Step Cause
Remedy
1 Air intake fan (AIR) harness
connection failure
Check the harness connection of the air intake fan
(AIR) and reconnect it.
2 Short-circuit of air intake fan
(AIR), fuser unit fan (FU),
LVPS fan (PS), or drum unit
fan (OPC)
Check if the harness terminal of any of these fans
is short-circuited using the tester.
If any of the fans is short-circuited, replace the
short-circuited fan and the engine PCB ASSY at
the same time.
The harness terminals that must be checked are:
- Air intake fan (AIR): Between 1 and 3 pins
- Fuser unit fan (FU): Between 1 and 2 pins
- LVPS fan (PS): Between 1 and 2 pins
- Drum unit fan (OPC): Between 1 and 2 pins
3 Air intake fan (AIR) failure If no fans are short-circuited in Step 2, replace the
air intake fan (AIR).
4 Engine PCB failure If no fans are short-circuited in Step 2, replace the
engine PCB ASSY.

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Brother MFC-9840CDW Specifications

General IconGeneral
Print technologyLaser
Maximum resolution600 x 2400 DPI
Economical printingYes
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 toE-mail, FTP, OCR, USB
Scanner typeFlatbed scanner
Grayscale levels256
Input color depth48 bit
Maximum scan resolution19200 x 19200 DPI
Optical scanning resolution1200 x 2400 DPI
Copier resize25 - 400 %
Maximum copy resolution1200 x 600 DPI
N-in-1 copy function (N=)4, 9, 16, 25
Copy speed (black, normal quality, A4)16 cpm
FaxingMono faxing
Fax memory400 pages
Modem speed33.6 Kbit/s
Fax speed dialing (max numbers)300
Total input capacity250 sheets
Total output capacity150 sheets
Multi-Purpose tray input capacity50 sheets
Auto document feeder (ADF) input capacity35 sheets
Internal memory128 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 features10/100Base-TX
Wireless technologyIEEE 802.11b/g
All-in-one functionsCopy, Fax, Scan
Maximum internal memory0.640 GB
Color all-in-one functionscopy, print, scan
Media weight (tray 1)60 - 105g/m2
Paper tray media typesBond paper, Envelopes, Labels, Plain paper, Recycled paper
Non-ISO print media sizesExecutive (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 sizeA4
Multi-Purpose Tray media weight60 - 163 g/m²
Security algorithmsLEAP
Supported network protocols (IPv4)TCP/IP (IPv4 & IPv6)
Standard interfacesUSB 2.0
USB 2.0 ports quantity1
Bundled softwareScanSoft PaperPort (Win) NewSoft Presto! PageManager (Mac)
Power consumption (PowerSave)36 W
Power consumption (average operating)515, 100 W
Package weight45800 g
Digital senderNo
Maximum duty cycle3000 pages per month
Market positioningBusiness

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