Xerox Phaser 6128MFP Service Manual

2-24 Phaser 6128MFP Service Manual
Theory of Operation
The Laser Unit is an exposure unit that generates laser beams to form an
electrostatic latent image on the drum surface. The Laser Unit consists of the
following components: laser diode (LD) board, scanner, start of scan (SOS) board,
lenses, mirrors, and windows.
• Laser Diode Board
The laser diode board consists of four laser diodes (LDs) corresponding to C,
M, Y, and K. Each LD converts the electric signals of incoming image data into
laser waves. In order to stabilize the laser light quantity during formation of
an electrostatic latent image, the laser diode board monitors the intensity of
the laser beam to adjust it to the appropriate level. This process is called auto
power control (APC).
• Scanner
The scanner consists of a scanner motor that rotates at a constant speed and
a polygon mirror that is mounted on the motor shaft. The laser light output
from the LD is directed onto the polygon mirror. The polygon mirror, provided
with six reflecting mirror faces, changes the reflection angle of the laser light
as it rotates, thereby allowing the laser light to scan the drum along its axial
direction. Scanning is performed using one reflecting mirror face for each line.
• Start of Scan (SOS) Board
The SOS Sensor on the SOS Board converts incoming laser beam, upon
detection, to an electric signal as reference for starting scanning, and
transmits this signal to the MCU Board. The SOS sensor signals are used to
synchronize the starting point of the laser beam scanning with the starting
point of the image writing.
•Lenses
The laser light reflected from the polygon mirror reaches the drum surface via
the lenses, mirror, and window. The Lenses correct aberration.
•Mirror
The mirror directs the laser beam to the Imaging Unit.
• Window
The window is the area where the laser beams exit the Laser Unit.

Xerox Phaser 6128MFP Specifications

General

Print technology	Laser
Maximum resolution	600 x 600 DPI
Economical printing	Yes
Time to first page (black, normal)	14 s
Time to first page (color, normal)	17 s
Print speed (black, normal quality, A4/US Letter)	16 ppm
Print speed (color, normal quality, A4/US Letter)	12 ppm
Scanner type	Flatbed scanner
Image formats supported	JPG, TIF
Copier resize	- %
Time to first copy (black, normal)	18 s
Copy speed (black, normal quality, A4)	16 cpm
Copy speed (color, normal quality, A4)	12 cpm
Faxing	Mono faxing
Fax speed dialing (max numbers)	200
Total input capacity	250 sheets
Total output capacity	150 sheets
Display	LCD
Market positioning	Business
Internal memory	384 MB
Card reader integrated	No
Sound pressure level (copying)	52.2 dB
Sound pressure level (printing)	14.9 dB
Maximum print size	216 x 297 mm
Paper tray media types	Bond paper, Card stock, Envelopes, Glossy paper, Labels, Plain paper
Non-ISO print media sizes	Executive (184 x 267mm), Folio (media size), Legal (media size), Letter (media size), Oficio (media size), Statement (140 x 216mm)
ISO A-series sizes (A0...A9)	A4, A5
JIS B-series sizes (B0...B9)	B5
Maximum ISO A-series paper size	A4
Multi-Purpose Tray media weight	60 - 216 g/m²
Power supply type	AC
Dimensions (WxDxH)	425 x 507 x 585 mm
Power requirements	120 V, 50/60 Hz
Networking features	Fast Ethernet
All-in-one functions	Copy, Fax, Scan
Standard media sizes	76.2 x 127 mm - 215.6 x 355.6 mm
Color all-in-one functions	copy, print, scan
Compatible operating systems	Windows 2000+ Mac OS X v10.3 - 10.5 Red Hat Enterprise Linux 5 Desktop SUSE Linux Desktop 10+
Dimensions (W x D x H) (imperial)	16.7 x 20 x 23 \
Acoustic power emissions (active, print, copy or scan)	62.2/30.3 dB
Standard interfaces	USB 2.0
USB 2.0 ports quantity	1
Power consumption (standby)	18.4 W
Power consumption (average operating)	360 W
Sustainability certificates	ENERGY STAR
Certification	EEC, FCC
Maximum duty cycle	40000 pages per month
Recommended duty cycle	3000 pages per month
Storage temperature (T-T)	-20 - 40 °C
Operating temperature (T-T)	10 - 32 °C
Non-operating relative humidity (non-condensing)	10 - 85 %