Oki ML 3390, 3391 manual ML3320/21

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rating. Generally, the total ratings of all equipment plugged into any one power line should not exceed 13 amperes. Do not exceed this unless you know that the power line your equipment is plugged into has a rating above 13 amperes.

•Do not poke anything into the ventilation slots on the sides of the printer; you could get a shock or cause a fire.

•Aside from the routine maintenance described in the manuals, don’t try to service the printer yourself; opening the cover may expose you to shocks or other hazards. Do not make any adjustments other than those outlined in the manual, you might cause damage requiring extensive repair work.

•If anything happens that indicates that your printer is not working properly or has been damaged, unplug it immediately and contact your Oki dealer for service. These are some of the things to look for:

•The power cable or plug is frayed or damaged.

•Liquid has been spilled into the housing, or the printer has been exposed to water.

•The printer has been dropped or its cabinet has been damaged.

•The printer doesn’t function normally when you are following the operating instructions.

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ML3320/21

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Contents ML 3390/3391 Energy Star Safety ML3320/21 Contents ML3320/21 Maintenance Clearing Paper Jams FF/LOAD Correcting Repetitive Rear-Feed Jams FF/LOAD Single-Sheet Jams Open the access cover, remove the pull-up roller assembly Troubleshooting Problem The printer does not print when data is sentProblem The Alarm light is blinking Problem Ink smears on paper UsingYour Printer Print Mode Indicator Lights➍ ➎ ➊ ➋ ➌ Utility Prop Print Quality Summary of Menu Settings Group Settings 17.1 cpi, 15 cpi Explanations of Menu Items Width ML 3391 only. Change to 8 to print on English ➊ ➋ ➌ ➍ Specifications SettingMode Character Pitch Parameter Reliability Parameter Range Index Rear feed paper Oki Systems Company
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ML 3390, 3391 specifications

The Oki 3391 Microline Printer embodies precision and versatility, making it an essential tool for various business applications. Built with a range of powerful features, this dot matrix printer excels in environments that require consistent, reliable printing. The Oki 3391 is a member of the Oki 3390 series, renowned for its robust design and technological advancements.

One of the standout characteristics of the Oki 3391 is its impressive printing speed. The printer operates at a rate of up to 550 characters per second, significantly boosting productivity in busy office settings. This speed allows users to handle high-volume print jobs efficiently, ensuring deadlines are consistently met. Additionally, the Oki 3391 offers page mode printing, which is ideal for multi-part forms, making it a popular choice for invoicing and record-keeping applications.

The Oki 3391 utilizes advanced print head technology, featuring a 24-pin mechanism that delivers high-quality text and graphics. This ensures that printed documents have clear, sharp details while maintaining a professional appearance. The printer supports various paper types and media sizes, from plain paper to labels and envelopes, enhancing its flexibility to meet diverse printing needs.

In terms of connectivity, the Oki 3391 is equipped with multiple interface options, including parallel and USB connections, facilitating easy integration into existing office setups. This versatility enables users to connect the printer to various devices, such as PCs and terminals, without hassle. Furthermore, the printer offers a range of emulations, ensuring compatibility with different software applications.

Durability and reliability are fundamental qualities of the Oki 3391. Designed to withstand high usage, it features robust components and is built for long-term operation, minimizing downtime. Its energy efficiency also aligns with modern environmental standards, making it a responsible choice for businesses looking to reduce their carbon footprint.

Overall, the Oki 3391 Microline Printer, part of the 3390 series, stands out for its speed, print quality, and durability. Its ability to handle various printing tasks while providing consistent performance makes it an invaluable asset for businesses that value efficiency and reliability in their document processing. Whether printing multi-part forms or daily reports, the Oki 3391 delivers exceptional results, making it a top contender in the dot matrix printer market.
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