ML690/ML691 User’s Guide 1Chapter :TroubleshootingGeneral InformationHere are some general things to check beforeproceeding 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 properambient conditions?Does the paper being used meet thespecifications 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 theprinter?Note: Settings in your software application will normallyoverride any settings in your printer driver.Printer driver settings normally override settingsfrom the printer menu or printer front panel.
