Oki C911dn Troubleshooting Guide

- 47 -
Printing Troubles
Troubleshooting
1
2
IndexMaintenance
Print quality is poor
Memo
z
If the problem is not solved using the following methods, contact your designated help desk.
Symptom Cause Troubleshooting
Reference
pages
White stripe in perpendicular
direction.
Paper feeding direction
LED head is unclean. Wipe LED head with a soft
tissue paper.
page 77
Low toner. Replace the toner cartridge. page 55
Deposit of foreign substances. Replace the image drum. page 57
Window lm of image drum is
unclean.
Wipe window lm with a soft
tissue paper.
-
Image drum has not been set
correctly.
Please set the image drum
correctly.
page 57
Printing is blurred in
perpendicular direction.
Paper feeding direction
LED head is unclean. Wipe LED head with a soft
tissue paper.
page 77
Low toner. Replace the toner cartridge. page 55
Paper not supported. Use recommended paper. Basic
Printing is light.
The toner cartridge is not
installed correctly.
Re-install the toner cartridge. page 55
Low toner. Replace the toner cartridge. page 55
Paper is moist. Use paper stored at appropriate
temperature and humidity.
-
Paper not supported. Use recommended paper. Basic
Paper not supported.
Type and thickness setting of
paper is inappropriate.
Correct [Media Weight] in
the operation panel to the
appropriate value. Or, change
[Media Weight] to a thicker
value than the present value.
Advanced
Recycled paper is used. Correct [Media Weight] in
the operation panel to the
appropriate value. Or, change
[Media Weight] to a thicker
value than the present value.
Advanced
Printing is blurred in some
parts. Solid printing will result
in the appearance of white dots
or lines.
Paper contains moisture. Dry it. Use paper stored at appropriate
temperature and humidity.
Basic
Inappropriate settings of [Paper
Black Setting] or [Paper Color
Setting].
Change the value of [Printer
Setting]>[Paper Black Adjust]
or [Paper Color Setting].
Advanced
Stripes in perpendicular
direction.
Paper feeding direction
There are dents on the image
drum.
Replace the image drum. page 57
Low toner. Replace the toner cartridge. page 55

Oki C911dn Specifications

General

Color	Yes
Print technology	LED
Maximum resolution	1200 x 1200 DPI
Duplex printing mode	Auto
Time to first page (black, normal)	8 s
Print speed (black, normal quality, A4/US Letter)	50 ppm
Envelopes sizes	DL, Monarch
Maximum print size	297 x 420 mm
Paper tray media types	Banner, Envelopes, Labels, Plain paper
Non-ISO print media sizes	index card, Letter (media size)
ISO A-series sizes (A0...A9)	A3, A4, A5, A6
ISO B-series sizes (B0...B9)	B5
ISO C-series sizes (C0...C9)	C5
Maximum ISO A-series paper size	A3
Processor family	ARM Cortex
Sound power level (standby)	34 dB
Sound pressure level (printing)	57 dB
Standard interfaces	Ethernet
USB 2.0 ports quantity	1
Wi-Fi	No
Mobile printing technologies	Not supported
Display	LCD
Product color	White
Total input capacity	830 sheets
Total output capacity	300 sheets
Maximum input capacity	2950 sheets
Total number of input trays	2
Maximum number of input trays	5
Maximum duty cycle	300000 pages per month
Number of print cartridges	-
Page description languages	PCL 5c, PCL 6
Power consumption (max)	1600 W
Power consumption (off)	0.4 W
Power consumption (standby)	40 W
Power consumption (printing)	1100 W
Power consumption (PowerSave)	30 W
Sustainability certificates	ENERGY STAR
Mac operating systems supported	Mac OS X 10.3 Panther, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, Mac OS X 10.8 Mountain Lion, Mac OS X 10.9 Mavericks
Windows operating systems supported	Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows Vista Business, Windows Vista Business x64, Windows Vista Enterprise, Windows Vista Enterprise x64, Windows Vista Home Basic, Windows Vista Home Basic x64, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows Vista Ultimate x64, Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64
Operating temperature (T-T)	10 - 32 °C
Operating relative humidity (H-H)	20 - 80 %

Weight and Dimensions

Depth	625 mm
Width	699 mm
Height	640 mm