Brother MFC-9420CN Service Manual

Confidential
3-43
(6) Engine interface block
The engine interface consists of the following signals;
<IREADY>
The signal indicating the engine is ready.
<PRREQ>
Signal requesting printing from the controller.
<KEY_STATUS>
Signal indicating that a key switch status on the control panel has changed.
<VSYNC>
Vertical synchronization signal for printing.
<HSYNC>
Horizontal synchronization signal for printing.
<VIDEO>
Video data signal
<COMMAND>
Command signal sent from the controller to the engine.
<STATUS>
Status signal sent from the engine to the controller.
Fig.3-40 shows the timing of each signal after the power switch is turned on.
Power-On
45sec MAX.
20sec MAX.
0.8 sec MAX.
1.1 sec MAX.
for Continuous Printing
1.875 sec
0.1sec MIN.
10ms MAX.
8us MIN.
IREADY-N
PRREQ-N
VSYNC-N
VIDEO-P
VSYNC-N
HSYNC-N
VIDEO-P
(A)
(K) data (C) data (M) data (Y) data
207.779 us
1st line 2nd line
27.9985 ns
1dot Last line
Fig. 3-39

Brother MFC-9420CN Specifications

General

Print technology	Laser
Maximum resolution	1200 x 2400 DPI
Economical printing	Yes
Print speed (black, normal quality, A4/US Letter)	31 ppm
Print speed (color, normal quality, A4/US Letter)	8 ppm
Digital sender	No
Number of print cartridges	4
Scanner type	Flatbed scanner
Scanner features	Scan to: e-mail, image, OCR, file
Copier resize	25 - 400 %
Maximum copy resolution	600 x 600 DPI
Maximum number of copies	99 copies
Copy speed (black, normal quality, A4)	31 cpm
Copy speed (color, normal quality, A4)	8 cpm
Faxing	Color faxing
Fax memory	500 pages
Modem speed	33.6 Kbit/s
Fax speed dialing (max numbers)	200
Total input capacity	750 sheets
Maximum input capacity	250 sheets
Auto document feeder (ADF) input capacity	35 sheets
Maximum internal memory	576 MB
Bundled software	ScanSoft PaperPort Presto! PageManager
I/O ports	IEEE-1284 USB 2.0
Dimensions (WxDxH)	483.5 x 514 x 530 mm
Printer management	BRAdmin Professional, MIB-II
Networking features	10Base-T/100Base-TX
All-in-one functions	Fax, Scan
Color all-in-one functions	copy, fax, print, scan
Compatible operating systems	Windows 98(SE)/ Me/ NT WorkStation 4.0/ 2000 Professional/ XP Mac OS 9.1 - 9.2, Mac OS X 10.2.4+
Sustainability certificates	ENERGY STAR
Power consumption (standby)	85 W
Power consumption (PowerSave)	16 W
Power consumption (average operating)	1090 W
Operating temperature (T-T)	10 - 32 °C
Operating relative humidity (H-H)	20 - 80 %
Market positioning	Business