Oki ML620 User Manual

ML620/ML621 User’s Guide 80
Chapter 6:
Troubleshooting
General Information
Here are some general things to check before
proceeding with detailed troubleshooting.
Is the printer plugged in and turned on?
Are the connections (power and interface)
secure?
Is the product being operated under the proper
ambient conditions?
Does the paper being used meet the
specications for this product?
Is the paper properly installed?
Is the ribbon properly installed?
Is an Oki ribbon being used?
Is the printhead gap correctly set?
Are the correct printer drivers being used for the
printer?
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Note: Settings in your software application will normally
override any settings in your printer driver.
Printer driver settings normally override settings
from the printer menu or printer front panel.

Oki ML620 Specifications

General

Color	-
Maximum resolution	288 x 72 DPI
Mean time between failures (MTBF)	25000 h
Sound pressure level (printing)	55 dB
Sound pressure level (quiet mode)	52 dB
Standard interfaces	USB 2.0
Windows operating systems supported	Windows 2000, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Ultimate x64, Windows Vista Business, Windows Vista Business 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
AC input voltage	120 V
Dimensions (WxDxH)	438 x 375 x 191 mm