Brother DCP-8065DN Servise Manual

Confidential
9-34
(I-7) Black and blurred horizontal stripes
User Check
(1) The drum unit may be damaged. Install a new drum unit.
(2) Check the paper used meets the recommended paper specifications.
(3) Clean the inside of the machine and the corona wire in the drum unit.
Possible cause
Step
Check
Result
Remedy
Ground
contacts
Scratch on the
drum
1 Are the horizontal stripes
at 74mm (exposure drum)
intervals?
Yes The exposure drum was
scratched. Replace the
drum unit.
Toner stuck
on the
developer
roller
2 Are the horizontal stripes
at 42.7mm (developer
roller) intervals?
Yes
After printing several
pages, the problem will
disappear.
If not, replace the toner
cartridge.
Scratch on the
heat roller
3 Are the horizontal stripes
at 79mm (heat roller)
intervals?
Yes Replace the heat roller.
Corona
contact failure
4 Are the charge electrodes
between the machine body
and the drum unit dirty?
Yes Clean both electrodes.
(3)
High-voltage
power supply
PCB failure
5 Is the problem solved after
replacing the high-voltage
power supply PCB?
Yes Replace the high-
voltage power supply
PCB.
(I-8) Black vertical streaks (in a gray background)
Possible cause
Step
Check
Result
Remedy
Ground
contacts
Corona failure 1 Is the corona wire dirty? Yes Clean the corona wire
with the wire cleaner.
(2)

Brother DCP-8065DN 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
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
Total input capacity	250 sheets
Total output capacity	150 sheets
Auto document feeder (ADF) input capacity	50 sheets
Internal memory	32 MB
Maximum internal memory	544 MB
Sound power level (standby)	30 dB
Sound pressure level (printing)	55 dB
Display	LCD
Market positioning	Business
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, Scan
Color all-in-one functions	scan, n
Compatible operating systems	Mac OS X 10.2.4 or greater Windows XP
Standard interfaces	USB 2.0
Sustainability certificates	ENERGY STAR
Power consumption (standby)	85 W
Power consumption (PowerSave)	15 W
Power consumption (average operating)	660 W