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Oki C301 - User Manual

Oki C301
94 pages
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User’s Guide
C301/C321/C331/C511/C531/ES5431

Table of Contents

Other manuals for Oki C301

Preview: Maintenance Manual
Maintenance Manual218 pages

Questions and Answers

  • B
    Brianna ButlerAug 14, 2025
    How to fix vertical white lines on Oki All in One Printer?
    • A
      Aaron BerryAug 14, 2025
      If vertical white lines appear on your printed pages from the Oki All in One Printer, it could be due to several reasons. The LED head might be dirty, so try wiping it with a soft, lint-free cloth. Alternatively, the toner could be low; open the top cover and gently tap the cartridge to redistribute the toner, or replace the cartridge if the issue continues. Foreign materials in the image drum or a dirty light-shielding film on the image drum cartridge could also be the cause; in these cases, replace the image drum cartridge or wipe the film with a soft, lint-free cloth.
  • W
    William WagnerAug 18, 2025
    Why is my Oki All in One Printer printing light?
    • S
      Sean MyersAug 18, 2025
      If your Oki All in One Printer's print is light, there are several potential causes. First, ensure the toner cartridge is properly seated by reinstalling it. If the toner is low, open the top cover and tap the cartridge a few times to evenly distribute the remaining toner, or replace the cartridge if needed. Also, check your paper: moist paper or unsuitable paper can cause light printing. Use paper stored in proper temperature and humidity conditions and ensure you are using recommended paper. Finally, incorrect paper thickness and type settings can affect print darkness; adjust the media type and weight in the Media menu, setting a thicker value if necessary. If you are using recycled paper, try setting a thicker value for media weight in the Media menu.
  • J
    Joseph HermanAug 21, 2025
    Why are printed images fading vertically on my Oki All in One Printer?
    • E
      eric37Aug 21, 2025
      If you notice printed images fading vertically when using your Oki All in One Printer, a dirty LED head could be the cause. Try wiping the LED head with a soft, lint-free cloth. Another possibility is low toner. Open the top cover and tap the cartridge a few times to evenly distribute any remaining toner, or replace the toner cartridge if the problem persists. Also, ensure that the paper you are using is suitable for the printer.
  • G
    Gina GreenAug 25, 2025
    What to do if vertical lines appear when printing with my Oki All in One Printer?
    • M
      Mr. James Dunlap IIAug 25, 2025
      If you're seeing vertical lines on your printouts from the Oki All in One Printer, it could be due to a damaged image drum cartridge. In this case, replace the image drum cartridge. Alternatively, the toner might be low. Try opening the top cover and tapping the cartridge a few times to evenly distribute any remaining toner. If the lines persist, replace the toner cartridge.
  • M
    melissa74Aug 28, 2025
    Why is the white area of paper lightly stained when printing with my Oki All in One Printer?
    • J
      Julie MartinezAug 28, 2025
      If the white area of the paper is lightly stained when printing with your Oki All in One Printer, the paper may contain static. Try using paper stored in proper temperature and humidity conditions. Also, using paper that is too thick can cause this issue, so try using thinner paper. In addition, low toner can cause a lightly stained white area. Open the top cover and tap the cartridge a few times to evenly distribute any remaining toner. If symptoms persist, replace the toner cartridge.
  • D
    Daniel ValdezAug 31, 2025
    Why are there horizontal lines and spots periodically appearing on my Oki All in One Printer?
    • E
      Erik YorkAug 31, 2025
      If you notice horizontal lines and spots appearing periodically on printouts from your Oki All in One Printer, the cause depends on the interval between these artifacts. If the interval is about 94mm (4in), the image drum (the green tube) may be damaged or dirty. Try wiping it lightly with a soft cloth; if it's damaged, replace the image drum cartridge. If the interval is about 30mm (1.2in), there may be foreign particles in the image drum cartridge; try opening and closing the top cover and printing again. If the interval is about 86mm (3.4in), the fuser unit is damaged, and you should replace it. Also, if the image drum cartridge has been exposed to light, replace it if the problem is not resolved.
  • T
    Terri LongSep 3, 2025
    Why is the periphery of the letters smudged on my Oki All in One Printer?
    • Y
      yrichSep 3, 2025
      If the periphery of letters is smudged when using your Oki All in One Printer, the LED head may be dirty. Clean the LED head with a soft, lint-free cloth.
  • W
    William PerezSep 7, 2025
    Why does toner come off when rubbed on prints from my Oki All in One Printer?
    • M
      Mrs. Crystal ContrerasSep 7, 2025
      If the toner comes off when rubbed on printouts from your Oki All in One Printer, the paper thickness and type settings may be incorrect. Set the correct values for media type and media weight in the Media menu, or try setting one value lighter for media weight. If you are using recycled paper, set one value thicker for media weight in the Media menu.
  • M
    Michael BaldwinSep 10, 2025
    Why is glossiness not uniform when printing with my Oki All in One Printer?
    • H
      harrisonkellySep 12, 2025
      If the glossiness is not uniform on printouts from your Oki All in One Printer, the thickness and type of paper settings may be incorrect. To fix this, set the correct value of media type and media weight in the Media menu, or set one value lighter for media weight.

Summary

Preface

Emergency First Aid

Manufacturer and Importer Information

Details about the printer manufacturer and the EU importer/authorized representative.

Environmental Information

Information related to the printer's environmental impact and compliance.

Notes, Cautions and Warnings

Understanding Document Notations

Clarifies the meaning of NOTE, CAUTION, and WARNING symbols used in the manual.

About This Guide

Documentation Suite Overview

Lists and briefly describes the various documents included with the printer.

On-Line Usage

Printing Pages

Getting Started

Overview and Front View

Provides a general overview of the printer's physical components and front view.

Paper Recommendations

Cassette Trays

Specifications for paper sizes and weights for the cassette trays.

Loading Paper

Cassette Trays

Step-by-step guide for loading paper into the cassette trays.

Operation

Model-Specific Operation

Directs users to relevant sections based on their specific printer model.

Printing Settings in Windows

Printing Preferences in Windows Applications

How to adjust print settings from within Windows applications.

Setting from Windows Control Panel

General and Advanced Tabs

Printer settings accessible via the Windows Control Panel's General and Advanced tabs.

Printing Settings in Mac OS X

Setting Printing Options

How to configure print settings and page orientation on Mac OS X.

Print Quality

Photo Enhance and Toner Saving

Options to improve image quality or save toner during printing.

Colour Printing

Factors Affecting Print Appearance

Discusses factors influencing print quality like color reproduction and viewing conditions.

Menu Functions

Operator Panel Overview

Identifies and describes the printer's operator panel buttons and their functions.

How to Change Settings - User

Maintenance

Toner Cartridge Replacement

Step-by-step guide for safely replacing the toner cartridge.

Cleaning

Cleaning the Unit Casing

Procedure for cleaning the printer's exterior casing.

Cleaning the LED Head

Instructions for cleaning the printer's LED head.

Installing Upgrades

Memory Upgrade

Details on upgrading printer memory capacity for specific models.

Setting the Driver Device Options

Windows Driver Configuration

How to configure printer driver options in Windows for new hardware.

Mac OS X Driver Configuration

How to configure printer driver options in Mac OS X for new hardware.

Troubleshooting

Major Printer Components and Paper Path

Identifies key printer parts and the paper's path through the machine.

Clearing Paper Jams

Step-by-step guide on how to safely remove paper jams from the printer.

Dealing with Unsatisfactory Printing

Specifications

OKI Contact Details

Oki C301 Specifications

General IconGeneral
Print Speed (Color)20 ppm
Monthly Duty Cycle30, 000 pages
Memory128 MB
Paper Capacity250 sheets
Duplex PrintingManual
Print TechnologyLED
ConnectivityUSB 2.0, Ethernet
Printer TypeColor
Media SizeA4, A5, A6, B5, Legal, Letter, Executive, Envelopes
Operating System CompatibilityWindows, Mac

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