ML690/ML691 User’s Guide 81
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
specications 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?
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.
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