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Details how to save money using the printer, focusing on the Forms Tear-Off feature.
Explains features that save time, including internet support, paper parking, and menu navigation.
Provides guidance on printer operation, such as setting Top of Form and using the platen knob.
Information on accessing Oki Data's website for product support and documentation.
Details the location and importance of the printer serial number for servicing.
Diagram and labels for identifying parts related to rear feed of continuous forms.
Diagram and labels for identifying parts related to top feed of single sheets.
Explanation of the status and meaning of each light on the printer's front panel.
Description of the functions of each key on the printer's front panel.
Provides essential tips and precautions for correctly installing the printer.
Outlines the general steps required for installing the printer and its accessories.
Guidance on selecting an appropriate and safe location for the printer installation.
Information on adjusting printer settings during installation to fit specific standards.
Instructions for unpacking the printer and verifying all included components.
Step-by-step instructions for loading continuous-form paper using the rear feed path.
Step-by-step instructions for loading single sheets of paper using the top feed path.
Instructions on how to run the Font Sample Test to verify printer output.
Instructions on running the Rolling ASCII Test to check print quality and character formation.
Detailed steps for connecting the printer to a computer using a parallel interface cable.
Explains how to set the printer's starting print position and its interaction with Forms Tear-Off.
Details the Forms Tear-Off feature for clean paper tearing and its automatic/manual modes.
Describes the Paper Park feature for printing single sheets without removing continuous paper.
Instructions for switching between continuous-form and single-sheet paper feed paths.
Information on adjusting the printhead gap for optimal print quality with different media.
Guidance on engaging the expanded printhead gap for thick multi-part forms.
Explains how to select and adjust print quality settings, including typefaces and speed modes.
Details on selecting character pitch settings for different text widths and layouts.
Procedure for resetting the printer to reinitialize its operations and clear error conditions.
Guide to navigating and using the printer's menu system for configuration and settings.
Instructions on how to restore all printer menu settings to their original factory defaults.
Step-by-step guide for replacing the printer's ribbon cartridge.
Procedure for cleaning the printer's internal components for optimal performance.
Troubleshooting steps for resolving rear-feed and single-sheet paper jams.
General checks and common issues to consider before detailed troubleshooting.
A catalog of common printer problems and their corresponding solutions.
Table detailing print speeds for various modes and character pitches.
Table showing characters per line for different settings on ML390 and ML391 Turbo models.
List of emulations supported by the printer, including Epson LQ, IBM PPR, and IBM AGM.
Details on the standard and optional interface types supported by the printer.
Specifies the printer's graphics resolution capabilities.
Lists resident fonts available for Letter Quality and Utility print modes.
Table listing resident typefaces with associated modes, sizes, and character pitches.
Specifications for Mean Time Between Failures (MTBF) and Mean Time to Repair (MTTR).
Information on the expected lifespan of the printer's printhead.
Details on the average lifespan of the printer's ribbon.
Detailed specifications for various paper types, weights, and widths supported by the ML390 Turbo.
Detailed specifications for various paper types, weights, and widths supported by the ML391 Turbo.
Specifications for paper thickness for rear and bottom feed paths.
Physical dimensions of the ML390 Turbo and ML391 Turbo printers.
Weight specifications for the ML390 Turbo and ML391 Turbo printers.
Operating and storage requirements for temperature and humidity.
Electrical specifications including voltage, power consumption, and frequency.
Overview of Oki Data's customer service and support methods.
Information on accessing provided documentation, including user guides and manuals.
Guidance on obtaining support and warranty service from the original purchase location.
Details on accessing online support resources via Oki Data's websites.
Information on contacting Oki Data customer support via phone for assistance.
Contact locations and information for authorized Oki Data service providers.
Specific service and support information for customers in the US and Canada.
Specific service and support information for customers in Latin America.
Guidance on how to purchase optional accessories for the printer.
List of available accessories with their corresponding part numbers for easy ordering.
Part numbers for consumables like ribbon cartridges.
Part numbers for printer options such as tractors and paper stands.
Part numbers for common replacement parts like covers, rollers, and printheads.
Information on how to obtain user guides and other documentation, including part numbers or references.
Reference list of Epson LQ command codes, their ASCII, and decimal values.
Reference list of IBM Proprinter commands, their ASCII, and decimal values.
Essential safety precautions and warnings for operating the printer to prevent injury or damage.
Information regarding product compliance with regulations like Year 2000 and Energy Star.
FCC statements regarding radio frequency interference for 120-volt models.
Industry Canada statements regarding radio frequency interference for 120-volt and 230/240-volt models.
Statements of electromagnetic and safety conformance for 230/240-volt models.
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