Brother MFC-8860DN Service Manual

Confidential
3-20
3.2.4.2 New toner detection mechanism
(1) The motor drive is transmitted to the gear (4) through a few gears.
(2) When the gear (4) is rotated, the rib A on the gear (4) pushes against a new toner actuator, and
a new toner sensor detects the actuator motion. Then, the toner sensor detects that a new toner
cartridge is installed.
(3) For the high yield toner cartridge, the rib B is provided on the gear (4) as shown in the figure
below so that a new toner actuator is pushed against twice by both ribs A and B.
(4) When the toner actuator is pushed twice, the two signals are transmitted to a new toner sensor,
and it is detected that the high yield toner cartridge is installed.
For the standard toner cartridge, the rib B is not provided, and a new toner actuator is pushed
only once by the rib A. In this case, the one signal is transmitted to a new toner sensor so that
it is detected that the standard toner cartridge is installed.
<Machine side view when a new toner cartridge is installed>
Fig. 3-21
Gear (4)
Gear (3)
Gear (2)
Gear (1)
Rib B
Rib A
N
ew toner actuator
N
ew toner sensor
Relay front PCB ASSY

Brother MFC-8860DN Specifications

General

Duplex printing	Yes
Print technology	Laser
Maximum resolution	1200 x 1200 DPI
Time to first page (black, normal)	8.5 s
Print speed (black, normal quality, A4/US Letter)	28 ppm
Scan to	e-mail, file, image, OCR
Grayscale levels	256
Input color depth	48 bit
Copier resize	25 - 400 %
Maximum copy resolution	1200 x 600 DPI
Maximum number of copies	99 copies
Copy speed (black, normal quality, A4)	28 cpm
Faxing	Mono faxing
Fax memory	500 pages
Modem speed	33.6 Kbit/s
Fax speed dialing (max numbers)	300
Total input capacity	250 sheets
Total output capacity	150 sheets
Auto document feeder (ADF) input capacity	50 sheets
Maximum internal memory	544 MB
Sound power level (standby)	30 dB
Sound pressure level (printing)	55 dB
Display	LCD
Market positioning	Business
Paper tray media types	Envelopes, Plain paper, Recycled paper
Non-ISO print media sizes	Executive
ISO A-series sizes (A0...A9)	A4, A5, A6
ISO B-series sizes (B0...B9)	B5, B6
Maximum ISO A-series paper size	A4
Font styles	66 Scaleable fonts, Letter, Gothic 16.66, OCR-A, OCR-B, 11 Barcodes
Dimensions (WxDxH)	531 x 450 x 475 mm
Networking features	10/100 Base-TX
All-in-one functions	Copy, Fax, Scan
Color all-in-one functions	scan, n
Compatible operating systems	Windows98(SE)/Me/2000/XP/NT4.0WS Mac OS 9.1-9.2/ OS X 10.2.4 +
Standard interfaces	USB 2.0
Power consumption (standby)	85 W
Power consumption (PowerSave)	15 W
Power consumption (average operating)	1104 W
Sustainability certificates	ENERGY STAR