Brother MFC-9840CDW Service Manual

Confidential
5-37
1.4.25 Error Code Indication (Function code 82)
<Function>
This function displays an error code of the machine on the LCD.
<Operating Procedure>
(1) Press the 8 and 2 buttons in this order in the initial stage of the maintenance mode.
The machine displays “MACHINE ERROR X
X” on the LCD.
(Refer to “2. ERROR CODES” in Chapter 1.)
(2) Press the Stop/Exit button. The machine beeps for one second and returns to the initial
stage of the maintenance mode.
1.4.26 Developing Bias Voltage Correction (Function code 83)
<Function>
The developing bias voltage correction is performed.
<Operating Procedure>
(1) Press the 8 and 3 buttons in this order in the initial stage of the maintenance mode.
The machine displays “Calibrate / Please Wait” on the LCD and starts the developing bias
voltage correction.
(2) Upon completion of the developing bias voltage correction, the machine beeps for one
second and returns to the initial stage of the maintenance mode.
Note:
- Ignore all of the panel operation during the developing bias voltage correction.
- If an error occurs during the developing bias voltage correction, the following error message
appears. Press the OK button to clear the error, and then the machine returns to the initial
stage of the maintenance mode.
Fig. 5-21
- If an error - except for the developing bias voltage correction - such as “Cover is Open”
occurs, follow the messages on the LCD to clear the error. If you clear the error, the machine
returns to the initial stage of the maintenance mode. Again, start from the beginning to
perform the developing bias voltage correction.

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