Brother MFC-9840CDW Service Manual

Confidential
5-4
1.4.2 Printout of Scanning Compensation Data (Function code 05)
<Function>
The machine prints out the black and white level data for scanning compensation.
<Operating Procedure>
Do not start this function merely after powering on the machine but start it after carrying out a
sequence of scanning operation. Unless the machine has carried out any scanning operation,
this function cannot print out correct scanning compensation data. This is because at the start
of scanning operation, the machine initializes black and white level data and takes in the
scanning compensation reference data.
(1) Take a black and white copy for black and white scanning, and take a color copy for color
scanning.
(2) Press the 0 and 5 buttons in this order in the initial stage of the maintenance mode.
The “PRINTING” will appear on the LCD.
(3) The data type and order to be recorded are as follows. The machine prints out the data
below regardless of black and white or color of the previous scanning.
a) Black and white data graph Records depending on the number of pixels of
the previous scanning
(Each color of R, G and B printed.)
b) GAIN (AFE parameter) (G) 2Byte
c) GAIN (AFE parameter) (B) 2Byte
d) GAIN (AFE parameter) (R) 2Byte
e) Background color
compensated data
1Byte
f) AD data for light source
control
2Byte
g) Temperature in acquisition
of AD data for light source
control
2Byte
h) Black level data (G) 2Byte
i) Black level data (B) 2Byte
j) Black level data (R) 2Byte
k) White level data (G) Depends on the number of pixels of the
previous scanning
l) White level data (B) Depends on the number of pixels of the
previous scanning
m) White level data (R) Depends on the number of pixels of the
previous scanning
(4) Upon completion of recording of the compensation data list, the machine beeps for one
second and returns to the initial stage of the maintenance mode.
Note:
- If an incorrect value is found, the machine prints out the data with the reversal format (white
on black).
- After black and white scanning, the machine prints out the G data only for black and white
level registration. It does not print out the R and B data.
- The white level and black level data are captured at 10/16 bits, and upper 8 bits data of them
is printed.

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