Oki ML3320, ML3321 manual Troubleshooting, Problem Nothing happens when I turn on the printer

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Troubleshooting

Problem: Nothing happens when I turn on the printer.

Solution: Check the power cable connection and power outlet to your printer. If you are using a power strip, make sure it is turned on, and that the fuse has not blown nor the circuit breaker tripped.

Problem: The printer does not print when data is sent.

Solutions:(1) Is the SEL light on? If not, press the SEL key.

(2)Check that the interface cable is securely connected to both the printer and the computer.

(3)If you have the optional serial interface board installed, check to be sure that it is firmly seated in the printer.

Problem: I'm getting strange symbols, incorrect fonts, etc., when I try to print a document.

Solution: (1) Check to be sure that the printer driver you have selected in your software matches the printer emulation. (Press SHIFT and SEL keys, then press GROUP key: this will print a line showing the emulation you have selected.)

(2)If you have embedded any printer commands in your software, check to be sure that you entered them correctly.

Problem: I've installed a new ribbon and the printing is smeared and streaked.

Solution: The ribbon shield is either loose or missing. Remove the ribbon cartridge and check the clear plastic ribbon shield: if it's loose, secure it in place, if it is missing, find it and reinstall it.

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ML3320/21

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Contents ML 3320/3321 Energy Star Safety ML3320/21 Contents ML3320/21 Maintenance Clearing Paper Jams FF/LOAD Correcting Repetitive Rear-Feed Jams FF/LOAD Single-Sheet Jams Cleaning the Housing Troubleshooting Problem Nothing happens when I turn on the printerProblem The Alarm light is blinking Problem Ink smears on paper UsingYour Printer ➏ ➐ ➑ ➒ Selecting the Print Quality UTL UtilityMenu Mode Control Panel Entering and Exiting the Menu Mode Changing the Menu SettingsSummary of Menu Settings Group SettingGroup Settings Invalid, Valid Explanations of Menu Items Width Model 3321 only. Change to 8 to print on Using the Printers Features Rear Feed Form Tear-Off OFF Bottom Feed Form Tear-OFF OFF Specifications Mode Characters per secondParameter Reliability Specifications subject to change without notice Index Paper park feature Pin 18 menu setting Oki Systems Company