Oki ML690 User's Guide

Pages 99

Year 0

Language(s)

of 99

Oki ML690 Printer Specification

The Oki ML690 Printer is a robust and versatile dot matrix printer designed for high-volume transactional printing environments. It features a 24-pin print head capable of producing high-quality text and graphics with a print resolution of up to 360 x 360 dpi. The printer is engineered to handle demanding workloads with a print speed of up to 630 characters per second in high-speed draft mode, making it ideal for tasks that require quick output, such as invoices, packing slips, and reports. The ML690 supports multiple paper paths, including rear, front, and bottom feeds, allowing for seamless integration into various office setups. It is equipped with a long-lasting ribbon life, capable of printing up to 4 million characters, reducing the need for frequent replacements and minimizing operational costs. Additionally, the printer supports a wide range of media types, including continuous forms, multi-part forms, and single sheets, offering flexibility for different printing requirements. Connectivity options include parallel and USB interfaces, ensuring compatibility with a wide range of computing systems. The Oki ML690 is designed for durability and reliability, featuring a robust build that can withstand the rigors of a busy office environment. Its user-friendly control panel allows for easy operation and quick access to essential functions. With its combination of speed, reliability, and versatile media handling capabilities, the Oki ML690 Printer is an excellent choice for businesses that require efficient and dependable print solutions.

Oki ML690 Printer F.A.Q.

How do I load continuous paper into the Oki ML690 printer?

To load continuous paper in the Oki ML690, ensure the printer is turned off. Open the paper cover and adjust the paper feed knob to accommodate the width of the paper. Insert the paper into the rear slot, aligning it properly with the tractor pins. Close the paper cover and turn the printer on.

What should I do if the printer is not turning on?

First, check the power cable connection to ensure it is securely plugged in. Verify that the outlet is working by testing it with another device. If the problem persists, inspect the printer's power switch and replace any blown fuses as necessary.

How can I clear a paper jam in the Oki ML690 printer?

Turn off the printer and open the top cover. Gently remove any visible jammed paper, taking care not to tear it. Check the paper path for any obstructions and clear them. Once done, close the cover and power on the printer to resume printing.

What maintenance tasks should I regularly perform on the Oki ML690?

Regularly check and clean the print head with a soft, lint-free cloth. Ensure the platen and paper path are free from dust and debris. Periodically lubricate moving parts and replace the ribbon as needed to maintain optimal print quality.

How do I change the ribbon cartridge in the Oki ML690?

Ensure the printer is off. Open the top cover and locate the ribbon cartridge. Gently lift it out and dispose of it properly. Insert the new ribbon cartridge, making sure it clicks into place, and rotate the knob to tighten the ribbon. Close the cover and resume printing.

Why is the print quality poor and how can I improve it?

Poor print quality can be due to an old or worn-out ribbon. Check the ribbon for wear and replace it if necessary. Also, ensure the print head is clean and properly aligned. Adjust the print density settings in the printer software for better results.

How do I reset the Oki ML690 printer to factory settings?

To reset the Oki ML690 to factory settings, turn off the printer. Press and hold the 'LF' and 'FF' buttons while turning the printer back on. Continue holding the buttons until the printer performs a reset sequence, then release them.

Can the Oki ML690 print via USB, and how do I set it up?

Yes, the Oki ML690 supports USB printing. Connect the printer to your computer using a USB cable. Install the necessary drivers from the Oki website or the installation CD provided. Follow the on-screen instructions to complete the setup.

How can I troubleshoot if the printer is printing blank pages?

Ensure the ribbon cartridge is properly installed and not empty. Check the paper path for any obstructions. Verify that the document being printed is not blank, and ensure that the correct printer driver is installed and selected.

What should I do if the Oki ML690 is printing misaligned text?

Misaligned text can result from incorrect paper alignment or print head positioning. Ensure that the paper is loaded straight and the print head is clean. Perform a print head alignment test and adjust settings as necessary in the printer's control panel.