Oki MB491 User Manual

Replacing Consumable Items
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Replacing Toner Cartridges
Procedure for Replacement
1 Open the top cover and remove the used
toner cartridge.
Memo
z When disposing of used toner cartridges by necessity,
poly-bag them, and be sure to follow instructions and
regulations of your local government.
 Rotate the blue lever of the toner cartridge in
the direction of the arrow of on the toner
cartridge until it stops.
 Remove the toner cartridge.
2 Install a new toner cartridge.
 Unpack the new toner cartridge.
 Hold the toner cartridge to gently shake it for
several times.
 Place the toner cartridge horizontally and
slightly remove the tape from it.
 Hold the toner cartridge with the tape face
down and the blue lever on the right side.
 Insert the toner cartridge, while matching its
left side with the protrusion on the left side of
the image drum.
 Firmly press the grooves on the right side of
the toner cartridge against the protrusion of
the cartridge guide on the right side of the
image drum.
 While holding down the toner cartridge top
with the hand to prevent it from rising, rotate
the blue release lever on the right side in the
direction of the arrow of on the toner
cartridge until it stops.
Note
z When the toner cartridge is not fully fixed, a decline in
print quality may occur.
3 Lightly wipe the whole LED head with a
soft cloth or soft tissue paper.
Model Type
MB461
MB471/
ES4161
MFP
Starter toner cartridge
Toner cartridge
Toner cartridge
(Medium)
MB491/
ES4191
MFP
Starter toner cartridge
Toner cartridge
Toner cartridge
(Medium)
Toner cartridge (Large)
WARNIN
G
Be sure not to throw used toner
cartridges into fire; toner in the
cartridges flies and explodes and
burn injury may result.
Toner cartridge
lever
Toner cartridge
Tape
Protrusion of image drum
lever
LED head

Oki MB491 Specifications

General

Duplex printing	No
Print technology	Laser
Time to first page (black, normal)	5 s
Print speed (black, normal quality, A4/US Letter)	40 ppm
Network ready	Yes
Power supply type	AC
Dimensions (WxDxH)	427 x 425 x 455 mm
Networking features	Fast Ethernet
All-in-one functions	Copy, Fax, Print, Scan
Connectivity technology	Wired
Printing colors	Black
Maximum duty cycle	80000 pages per month
Number of print cartridges	1
Page description languages	PCL 5e, PCL 6, PostScript 3
Copier resize	25 - 400 %
Maximum copy resolution	600 x 600 DPI
Maximum number of copies	99 copies
Time to first copy (black, normal)	10 s
Scanner type	Flatbed scanner
Maximum scan area	- mm
Faxing	Mono faxing
Fax memory	4 MB
Modem speed	33.6 Kbit/s
Total input capacity	250 sheets
Total output capacity	100 sheets
Envelopes sizes	C5, C6, DL
Maximum print size	210 x 297 mm
Paper tray media types	Plain paper
ISO A-series sizes (A0...A9)	A4, A5, A6
JIS B-series sizes (B0...B9)	B5
Maximum ISO A-series paper size	A4
Display	LCD
Display resolution	320 x 128 pixels
Market positioning	Business
Direct printing	-
Standard interfaces	Ethernet, USB 2.0
AC input voltage	220 - 240 V
AC input frequency	50 - 60 Hz
Power consumption (average operating)	950 W
Operating temperature (T-T)	10 - 32 °C
Operating relative humidity (H-H)	20 - 80 %
Sustainability certificates	ENERGY STAR