Oki B720 - User Manual

Questions and Answers

D
David WhiteDec 1, 2025
How to troubleshoot Oki B720 that won't print?
- J
  Jeffrey VanceDec 1, 2025
  If your Oki All in One Printer won't print, check the following: * Is the READY light off? If so, the printer might be off-line or in menu setting mode. Check the control panel display: If it says “Off-line”, press . If there are other messages, press the Back Arrow button to exit the menu setting mode. * Is there a message displayed on the control panel? Follow the message to rectify the problem. * If using a parallel cable, and your computer supports bidirectional communication, ensure the printer’s bidirectional communication setting is enabled. If the computer doesn't support it, disable bidirectional communication on the control panel. * If the printer has insufficient memory, and the printer driver is set to [1200dpi] on the [Graphics] tab, change it to [600dpi]. You can al...
C
comptonelizabethAug 25, 2025
What to do if my Oki Printer cannot print?
- W
  wmullinsAug 25, 2025
  If your Oki Printer is unable to print, first, press the ON LINE button to ensure the printer is online. If the problem persists, and the printer driver is set to 1200dpi on the Graphics tab, set it to 600dpi. You might also need to reduce the complexity of the print job or install additional memory to increase the printer's memory.
A
Ashley WilliamsAug 25, 2025
Why is my Oki Printer printing light (faded, blurred)?
- A
  Anna GarzaAug 26, 2025
  If your Oki Printer's output is light, faded, or blurred, try replacing the paper with a fresh ream. If the issue continues, replace the drum/toner cartridge. Also, uncheck the Toner Saving checkbox on the Graphics tab in the printer driver. Another solution is to open cover B and push down the levers at both ends of the fuser unit.
J
Jerry MccartyAug 27, 2025
How to resolve black spots or streaks printed by my Oki Printer?
- V
  vlaneAug 27, 2025
  If your Oki Printer is printing black spots or streaks, replace the drum/toner cartridge with a new one.
J
James WilkersonAug 27, 2025
How to fix my Oki Printer when printed image smudges when rubbed?
- C
  Charles SnyderAug 27, 2025
  If the printed image from your Oki Printer smudges when rubbed, and the toner isn't fixed on the paper, set the appropriate paper type for the loaded paper in the paper tray on the control panel. You can also try using a new ream of paper or ensuring you're loading the correct type of paper.
J
Jesse AndersonSep 14, 2025
Why does my Oki All in One Printer have no power?
- E
  Eugene SinghSep 15, 2025
  If your Oki All in One Printer isn't getting power, first, make sure the printer is turned on. If it is on, check the power cord to ensure it's properly connected to both the printer and a working power outlet. Also, verify that the power outlet provides the correct voltage as indicated on the printer's label.
J
Joseph BoydSep 12, 2025
What to do if an envelope is wrinkled after printing with my Oki Printer?
- T
  tanyajordanSep 12, 2025
  If an envelope is wrinkled after printing with your Oki Printer, open cover B and lift up the levers at both ends of the fuser unit.
L
laura06Sep 13, 2025
What could cause spots of missing text when printing with my Oki Printer?
- N
  Nichole BaileySep 13, 2025
  If you're experiencing spots of missing text when printing with your Oki Printer, try replacing the paper with a new ream or loading the correct type of paper.
S
Shane HartSep 5, 2025
What to do if my Oki Printer is printing the whole piece of paper black?
- M
  Mike HernandezSep 5, 2025
  If your Oki Printer is printing entire pages in black, replace the drum/toner cartridge.
M
Molly JonesSep 3, 2025
What should I do if my Oki Printer prints dirt at equal intervals?
- S
  Shelly WallaceSep 3, 2025
  If your Oki Printer is printing dirt at equal intervals, try printing a few pages to remove the stains. If the problem persists, replace the drum/toner cartridge.

Summary

Safety Precautions and Warnings

Data Loss Prevention

Warns about data loss due to printer malfunction or power loss.

Computer Virus Protection

States printer is not responsible for virus-related breakdowns.

Class I Laser Safety

Describes the printer as a Class I Laser System and provides safety guidelines.

Understanding Manual Conventions

Document Terminology and Symbols

Explains how symbols and terms like 'Computer' are used in the manual.

Advisory Indicator Meanings

Defines the meaning of 'Important!', 'Note', 'Caution', and 'WARNING' indicators.

Illegal Copies and Printouts

Basic Printer Operations

Front View Components

Identifies and labels the external components of the printer's front.

Rear View Connectivity

Identifies and labels the external connectors and ports on the printer's rear.

Internal Component Identification

Shows and describes key internal components like drum and fuser units.

Control Panel Button Functions

Details the function of each button on the printer's control panel.

Control Panel Display and Lights

Explains the printer's display screen and indicator lights.

LCD Display Modes

Describes the 'Print Mode' and 'Menu Mode' shown on the LCD.

Power Save Mode Configuration

Explains the printer's power-saving feature and how it operates.

How to Cancel a Print Job

Provides steps to cancel a print job from the printer or computer.

AirPrint Wireless Printing

AirPrint Setup Requirements

Details the prerequisites for using AirPrint with Apple devices.

Printing from iOS Devices

Guides users on how to print from iPhones, iPads, etc., using AirPrint.

AirPrint Security Considerations

Explains security features like user ID and password for AirPrint.

User Control Feature

Describes the feature that restricts printing to authorized users.

Print Media Management

Paper Exit Path Options

Explains the different paths where printed pages exit the printer.

Top Exit Path Usage

Details the default top exit path for printed pages.

Rear Exit Path Usage

Describes using the rear exit path for special media types to prevent jams.

Loading Standard Paper into Tray

Step-by-step instructions for loading standard paper into the printer tray.

Media Specifications and Guidelines

Supported Media Types and Sizes

Lists paper sizes, weights, and types supported by Tray 1 and other trays.

Guidelines for Custom Paper Sizes

Provides requirements and dimensions for printing custom-sized paper.

Setting Up Custom Paper Sizes

Explains how to configure custom paper sizes via control panel and driver.

Special Media Type Handling

Details fuser settings and exit paths for special media like labels and envelopes.

Loading and Printing Transparencies

Instructions for loading and printing transparencies, including cautions.

Loading and Printing Envelopes

Instructions for loading and printing envelopes, including cautions and supported sizes.

Loading and Printing Labels

Instructions for loading and printing labels, including cautions and supported brands.

List of Unusable Media Types

Lists media types that can cause jams or damage to the printer.

Automatic Tray Management

Automatic Tray Selection Process

Explains how the printer automatically selects the correct paper tray.

Advanced Media Handling Options

Auto Tray Change Feature

Describes how the printer switches trays when one runs out of paper.

Media Check and Express Print

Explains media checking and express print settings for job flexibility.

Proper Media Storage and Handling

Printer Menu Navigation

Navigating Printer Menu Options

Explains how to navigate through the printer's menu system using buttons.

Printing a Printer Menu Map

Guides on how to print a map of the printer's menu structure and settings.

Printer Menu Structure Overview

USB Drive and Print Jobs Menus

Describes menus for USB drive access and managing print jobs.

Configuration and Information Menus

Outlines menus for printer settings and information reports.

Admin Setup Menu Options

Lists various administrative setup menus for printer configuration.

Detailed Menu Item Explanations

USB Drive Menu Functionality

Explains how to print files directly from a USB flash drive.

Print Jobs Menu Functionality

Explains how to access and manage jobs stored in the printer's memory.

Configuration Settings

Page Counts Menu Details

Provides access to printer counters like usage and page counts.

Supplies Life Menu Details

Allows viewing the remaining levels of printer supplies like toner.

Network Menu Settings

Covers parameters for configuring the printer's network connection.

System and Information Menus

System Menu Settings

Details printer system settings like serial number and memory.

Information Menu Reports

Explains how to print reports like usage, menu map, and font lists.

Tray Configuration and Settings

General Tray Configuration

Sets up paper feed, output trays, units of measure, and auto-sense.

Tray 1 and Tray 2 Settings

Configures paper size, media type, and dimensions for Tray 1 and Tray 2.

Tray 3 and Tray 4 Settings

Configures paper size, media type, and dimensions for Tray 3 and Tray 4.

System Configuration Options

Power Save and Wait Timeout Settings

Configures power saving duration and wait timeout for printer functions.

Toner Low and Jam Recovery Settings

Manages alerts for low toner and automatic jam recovery.

Language, Contrast, and Density Settings

Adjusts display language, contrast, and print density.

Tray and Duplex Adjustments

Fine-tunes paper feed adjustments for trays and duplex printing.

Accessing Admin Menus

Admin Menu Password Entry

Explains how to enter the password to access administrative menus.

Admin Network Configuration

TCP;IP and IPv6 Network Settings

Configures core network protocols like TCP/IP and IPv6.

IP Address and Gateway Configuration

Sets up IP address, subnet mask, and gateway for network connection.

DNS, WINS, and Web Server Settings

Manages DNS, WINS, and web server configurations for network services.

Hub Link and PS Protocol Settings

Configures network link settings and printer data protocols.

Admin Wireless Setup

WPS PIN and PBC Connections

Guides on connecting to a wireless network using WPS PIN or PBC.

Network Selection and Management

Covers selecting, removing, and managing wireless networks.

IP Address and Gateway Configuration

Displays IP address, subnet mask, and gateway for wireless connection.

Admin Print Settings

Personality, Copies, and Duplex Settings

Configures printer personality, number of copies, and duplex printing.

Auto Resize and Media Check Settings

Manages automatic resizing and media checking for print jobs.

Resolution, Toner Save, and Orientation

Adjusts print resolution, toner saving, and page orientation.

Admin PCL Emulation Settings

Font Source and Pitch Configuration

Sets font source, number, and pitch for PCL emulation.

Symbol Set and CR;LF Function

Configures symbol sets and carriage return/line feed functions.

PCL Tray ID Settings

Assigns IDs to trays for PCL printing.

Admin Emulation and Parallel Settings

FX Emulation Configuration

Sets character pitch, set, symbol set, and line pitch for FX emulation.

Parallel Port Configuration

Enables/disables parallel port and sets PS protocol.

Admin Serial Port Settings

Serial Port Communication Parameters

Configures serial port settings like baud rate, data bits, parity, and flow control.

USB and Date;Time Configuration

USB Menu Settings

Enables/disables USB port and sets PS protocol.

Date and Time Settings

Configures the printer's date, time, and daylight savings.

Admin User Flash Memory Management

User Flash Data Security and Formatting

Manages data security, printing, deletion, and formatting of user flash memory.

Admin Hard Disk Management

Hard Disk Data Security and Formatting

Manages data security, printing, deletion, and formatting of the hard disk.

Compact Flash and Spooling Management

Compact Flash Memory Management

Manages data security, printing, deletion, and formatting of compact flash.

Spooling Options Configuration

Configures spooling start, stop, playback, delete, and destination.

Admin Job, Password, and Maintenance Settings

Job Accounting and Password Change

Manages job accounting and changing the admin password.

Maintenance Menu Options

Provides options for menu reset, saving/restoring settings, panel security, and USB drive access.

Printer Features Overview

Printing from USB Flash Drive

Details how to print PDF files directly from a USB flash drive.

Stored Job Printing

Explains how to store and print jobs from the printer's memory.

Banner Printing Guide

Instructions on how to load and print banner-sized paper.

Direct PDF File Printing

Describes sending PDF files directly to the printer without a driver.

E-mail Printing Functionality

Explains how to print emails and attachments received by the printer.

Barcode Printing Capabilities

Lists the types of barcodes supported for printing.

Storing Jobs in Printer Memory

Details options like Stored, Secure Print, Proof and Print, Timed Jobs.

Retrieving Stored Documents

Instructions on how to access and print jobs stored in the printer's memory using a PIN.

Deleting Stored Print Jobs

Steps to delete jobs that have been stored in the printer's memory.

Printing on Banners

Direct Printing of PDF Files

E-mail Printing and Notification

E-mail Printing Setup and Configuration

Details requirements for setting up email printing via network.

Sending Emails to the Printer

Explains how to send emails with attachments for printing.

E-mail Sending Security and Cautions

Provides security advice and cautions for sending emails to the printer.

Barcode Printing Capabilities

Driver-Level Print Features

Manual Feed from Tray 1 Configuration

How to configure Tray 1 for manual feeding of paper.

Collating Print Jobs

Explains how the printer collates multiple copies of documents.

2-Sided Printing (Duplex) Setup

How to enable and use automatic duplex (two-sided) printing.

Cover Sheet Printing Options

How to use different paper for the first page of a document.

Fit to Page Printing Option

How to scale documents to fit the selected paper size.

N-up Printing (Multiple Pages per Sheet)

How to print multiple pages on a single sheet of paper.

Finishing Options for Binding

How to add space for binding documents within the print job.

Poster Printing Functionality

How to print large images across multiple pages as a poster.

Job Offset Feature

How to offset print jobs for easier separation using the Offset Catch Tray.

Adjusting Print Quality Settings

How to adjust resolution and toner saving for print quality.

Font Substitution Options

How to substitute TrueType fonts with printer fonts.

Watermark Feature Usage

How to add watermarks (like COPY, DRAFT) to printed documents.

Embedded Web Server (EWS) Access

Accessing the Printers EWS

How to access the printer's web interface using its IP address.

Troubleshooting Common Issues

Resolving Paper Jams

General precautions and identification of jam locations (Covers A, B, C, D).

Clearing Paper Jams Inside Cover A

Step-by-step guide to remove paper jams from the printer's top cover area.

Clearing Paper Jams from Paper Trays

Instructions for removing paper jams from within the paper trays.

Clearing Paper Jams Inside Cover B

Step-by-step guide to remove paper jams from the printer's rear cover area (fuser unit).

Clearing Paper Jams in Duplex Unit

Instructions for removing paper jams from the duplex unit area.

Clearing Paper Jams in Offset Catch Tray

Instructions for removing paper jams from the offset catch tray area.

Printer Problem Diagnosis and Resolution

General Troubleshooting Steps

Table for diagnosing issues like 'No power' and 'Cannot print'.

Addressing Print Quality Issues

Guides on resolving common print quality problems like light print or spots.

Understanding Error Messages

Lists error messages and their possible causes or actions.

Network and Web Interface Troubleshooting

Troubleshooting TCP;IP Network Issues

Guides on resolving network connectivity problems using TCP/IP.

Troubleshooting Printer Web Page Access

Helps resolve issues related to accessing the printer's web interface.

E-mail Printing Troubleshooting

Troubleshooting E-mail Printing Failures

Guides on resolving issues with e-mail printing and notifications.

Routine Maintenance Procedures

Replacing the Drum;Toner Cartridge

Step-by-step instructions for replacing the drum/toner cartridge.

Printing System Reports and Lists

How to print various reports like usage, menu map, and font lists.

Checking Printer Status via Email (Mail Notice Service)

How to configure and use Mail Notice Service for printer status updates.

Setting Up E-mail Environment

Guides on configuring network and mail server settings for email features.

Printer Cleaning Procedures

Cleaning the Printer Exterior

Instructions for cleaning the outside surfaces of the printer.

Cleaning the Printer Interior

Instructions for cleaning dust and debris from inside the printer.

Cleaning Feed Rollers

Procedure for Removing and Cleaning Feed Rollers

Detailed steps for removing, cleaning, and replacing feed rollers.

Cleaning Rollers Inside Printer

Steps to clean internal feed rollers after removing the drum/toner cartridge.

Cleaning Tray Module Rollers

Instructions for cleaning rollers in paper trays and optional tray modules.

Moving the Printer Safely

Printer Weight and Lifting Precautions

Information on printer weight and safety measures for lifting.

Preparing Printer for Moving

Steps to prepare the printer for relocation, including removing paper and cartridges.

Appendix A: PCL Emulation Symbol Sets

Summary

Safety Precautions and Warnings

Data Loss Prevention

Warns about data loss due to printer malfunction or power loss.

Computer Virus Protection

States printer is not responsible for virus-related breakdowns.

Class I Laser Safety

Describes the printer as a Class I Laser System and provides safety guidelines.

Understanding Manual Conventions

Document Terminology and Symbols

Explains how symbols and terms like 'Computer' are used in the manual.

Advisory Indicator Meanings

Defines the meaning of 'Important!', 'Note', 'Caution', and 'WARNING' indicators.

Illegal Copies and Printouts

Basic Printer Operations

Front View Components

Identifies and labels the external components of the printer's front.

Rear View Connectivity

Identifies and labels the external connectors and ports on the printer's rear.

Internal Component Identification

Shows and describes key internal components like drum and fuser units.

Control Panel Button Functions

Details the function of each button on the printer's control panel.

Control Panel Display and Lights

Explains the printer's display screen and indicator lights.

LCD Display Modes

Describes the 'Print Mode' and 'Menu Mode' shown on the LCD.

Power Save Mode Configuration

Explains the printer's power-saving feature and how it operates.

How to Cancel a Print Job

Provides steps to cancel a print job from the printer or computer.

AirPrint Wireless Printing

AirPrint Setup Requirements

Details the prerequisites for using AirPrint with Apple devices.

Printing from iOS Devices

Guides users on how to print from iPhones, iPads, etc., using AirPrint.

AirPrint Security Considerations

Explains security features like user ID and password for AirPrint.

User Control Feature

Describes the feature that restricts printing to authorized users.

Print Media Management

Paper Exit Path Options

Explains the different paths where printed pages exit the printer.

Top Exit Path Usage

Details the default top exit path for printed pages.

Rear Exit Path Usage

Describes using the rear exit path for special media types to prevent jams.

Loading Standard Paper into Tray

Step-by-step instructions for loading standard paper into the printer tray.

Media Specifications and Guidelines

Supported Media Types and Sizes

Lists paper sizes, weights, and types supported by Tray 1 and other trays.

Guidelines for Custom Paper Sizes

Provides requirements and dimensions for printing custom-sized paper.

Setting Up Custom Paper Sizes

Explains how to configure custom paper sizes via control panel and driver.

Special Media Type Handling

Details fuser settings and exit paths for special media like labels and envelopes.

Loading and Printing Transparencies

Instructions for loading and printing transparencies, including cautions.

Loading and Printing Envelopes

Instructions for loading and printing envelopes, including cautions and supported sizes.

Loading and Printing Labels

Instructions for loading and printing labels, including cautions and supported brands.

List of Unusable Media Types

Lists media types that can cause jams or damage to the printer.

Automatic Tray Management

Automatic Tray Selection Process

Explains how the printer automatically selects the correct paper tray.

Advanced Media Handling Options

Auto Tray Change Feature

Describes how the printer switches trays when one runs out of paper.

Media Check and Express Print

Explains media checking and express print settings for job flexibility.

Proper Media Storage and Handling

Printer Menu Navigation

Navigating Printer Menu Options

Explains how to navigate through the printer's menu system using buttons.

Printing a Printer Menu Map

Guides on how to print a map of the printer's menu structure and settings.

Printer Menu Structure Overview

USB Drive and Print Jobs Menus

Describes menus for USB drive access and managing print jobs.

Configuration and Information Menus

Outlines menus for printer settings and information reports.

Admin Setup Menu Options

Lists various administrative setup menus for printer configuration.

Detailed Menu Item Explanations

USB Drive Menu Functionality

Explains how to print files directly from a USB flash drive.

Print Jobs Menu Functionality

Explains how to access and manage jobs stored in the printer's memory.

Configuration Settings

Page Counts Menu Details

Provides access to printer counters like usage and page counts.

Supplies Life Menu Details

Allows viewing the remaining levels of printer supplies like toner.

Network Menu Settings

Covers parameters for configuring the printer's network connection.

System and Information Menus

System Menu Settings

Details printer system settings like serial number and memory.

Information Menu Reports

Explains how to print reports like usage, menu map, and font lists.

Tray Configuration and Settings

General Tray Configuration

Sets up paper feed, output trays, units of measure, and auto-sense.

Tray 1 and Tray 2 Settings

Configures paper size, media type, and dimensions for Tray 1 and Tray 2.

Tray 3 and Tray 4 Settings

Configures paper size, media type, and dimensions for Tray 3 and Tray 4.

System Configuration Options

Power Save and Wait Timeout Settings

Configures power saving duration and wait timeout for printer functions.

Toner Low and Jam Recovery Settings

Manages alerts for low toner and automatic jam recovery.

Language, Contrast, and Density Settings

Adjusts display language, contrast, and print density.

Tray and Duplex Adjustments

Fine-tunes paper feed adjustments for trays and duplex printing.

Accessing Admin Menus

Admin Menu Password Entry

Explains how to enter the password to access administrative menus.

Admin Network Configuration

TCP;IP and IPv6 Network Settings

Configures core network protocols like TCP/IP and IPv6.

IP Address and Gateway Configuration

Sets up IP address, subnet mask, and gateway for network connection.

DNS, WINS, and Web Server Settings

Manages DNS, WINS, and web server configurations for network services.

Hub Link and PS Protocol Settings

Configures network link settings and printer data protocols.

Admin Wireless Setup

WPS PIN and PBC Connections

Guides on connecting to a wireless network using WPS PIN or PBC.

Network Selection and Management

Covers selecting, removing, and managing wireless networks.

IP Address and Gateway Configuration

Displays IP address, subnet mask, and gateway for wireless connection.

Admin Print Settings

Personality, Copies, and Duplex Settings

Configures printer personality, number of copies, and duplex printing.

Auto Resize and Media Check Settings

Manages automatic resizing and media checking for print jobs.

Resolution, Toner Save, and Orientation

Adjusts print resolution, toner saving, and page orientation.

Admin PCL Emulation Settings

Font Source and Pitch Configuration

Sets font source, number, and pitch for PCL emulation.

Symbol Set and CR;LF Function

Configures symbol sets and carriage return/line feed functions.

PCL Tray ID Settings

Assigns IDs to trays for PCL printing.

Admin Emulation and Parallel Settings

FX Emulation Configuration

Sets character pitch, set, symbol set, and line pitch for FX emulation.

Parallel Port Configuration

Enables/disables parallel port and sets PS protocol.

Admin Serial Port Settings

Serial Port Communication Parameters

Configures serial port settings like baud rate, data bits, parity, and flow control.

USB and Date;Time Configuration

USB Menu Settings

Enables/disables USB port and sets PS protocol.

Date and Time Settings

Configures the printer's date, time, and daylight savings.

Admin User Flash Memory Management

User Flash Data Security and Formatting

Manages data security, printing, deletion, and formatting of user flash memory.

Admin Hard Disk Management

Hard Disk Data Security and Formatting

Manages data security, printing, deletion, and formatting of the hard disk.

Compact Flash and Spooling Management

Compact Flash Memory Management

Manages data security, printing, deletion, and formatting of compact flash.

Spooling Options Configuration

Configures spooling start, stop, playback, delete, and destination.

Admin Job, Password, and Maintenance Settings

Job Accounting and Password Change

Manages job accounting and changing the admin password.

Maintenance Menu Options

Provides options for menu reset, saving/restoring settings, panel security, and USB drive access.

Printer Features Overview

Printing from USB Flash Drive

Details how to print PDF files directly from a USB flash drive.

Stored Job Printing

Explains how to store and print jobs from the printer's memory.

Banner Printing Guide

Instructions on how to load and print banner-sized paper.

Direct PDF File Printing

Describes sending PDF files directly to the printer without a driver.

E-mail Printing Functionality

Explains how to print emails and attachments received by the printer.

Barcode Printing Capabilities

Lists the types of barcodes supported for printing.

Storing Jobs in Printer Memory

Details options like Stored, Secure Print, Proof and Print, Timed Jobs.

Retrieving Stored Documents

Instructions on how to access and print jobs stored in the printer's memory using a PIN.

Deleting Stored Print Jobs

Steps to delete jobs that have been stored in the printer's memory.

Printing on Banners

Direct Printing of PDF Files

E-mail Printing and Notification

E-mail Printing Setup and Configuration

Details requirements for setting up email printing via network.

Sending Emails to the Printer

Explains how to send emails with attachments for printing.

E-mail Sending Security and Cautions

Provides security advice and cautions for sending emails to the printer.

Barcode Printing Capabilities

Driver-Level Print Features

Manual Feed from Tray 1 Configuration

How to configure Tray 1 for manual feeding of paper.

Collating Print Jobs

Explains how the printer collates multiple copies of documents.

2-Sided Printing (Duplex) Setup

How to enable and use automatic duplex (two-sided) printing.

Cover Sheet Printing Options

How to use different paper for the first page of a document.

Fit to Page Printing Option

How to scale documents to fit the selected paper size.

N-up Printing (Multiple Pages per Sheet)

How to print multiple pages on a single sheet of paper.

Finishing Options for Binding

How to add space for binding documents within the print job.

Poster Printing Functionality

How to print large images across multiple pages as a poster.

Job Offset Feature

How to offset print jobs for easier separation using the Offset Catch Tray.

Adjusting Print Quality Settings

How to adjust resolution and toner saving for print quality.

Font Substitution Options

How to substitute TrueType fonts with printer fonts.

Watermark Feature Usage

How to add watermarks (like COPY, DRAFT) to printed documents.

Embedded Web Server (EWS) Access

Accessing the Printers EWS

How to access the printer's web interface using its IP address.

Troubleshooting Common Issues

Resolving Paper Jams

General precautions and identification of jam locations (Covers A, B, C, D).

Clearing Paper Jams Inside Cover A

Step-by-step guide to remove paper jams from the printer's top cover area.

Clearing Paper Jams from Paper Trays

Instructions for removing paper jams from within the paper trays.

Clearing Paper Jams Inside Cover B

Step-by-step guide to remove paper jams from the printer's rear cover area (fuser unit).

Clearing Paper Jams in Duplex Unit

Instructions for removing paper jams from the duplex unit area.

Clearing Paper Jams in Offset Catch Tray

Instructions for removing paper jams from the offset catch tray area.

Printer Problem Diagnosis and Resolution

General Troubleshooting Steps

Table for diagnosing issues like 'No power' and 'Cannot print'.

Addressing Print Quality Issues

Guides on resolving common print quality problems like light print or spots.

Understanding Error Messages

Lists error messages and their possible causes or actions.

Network and Web Interface Troubleshooting

Troubleshooting TCP;IP Network Issues

Guides on resolving network connectivity problems using TCP/IP.

Troubleshooting Printer Web Page Access

Helps resolve issues related to accessing the printer's web interface.

E-mail Printing Troubleshooting

Troubleshooting E-mail Printing Failures

Guides on resolving issues with e-mail printing and notifications.

Routine Maintenance Procedures

Replacing the Drum;Toner Cartridge

Step-by-step instructions for replacing the drum/toner cartridge.

Printing System Reports and Lists

How to print various reports like usage, menu map, and font lists.

Checking Printer Status via Email (Mail Notice Service)

How to configure and use Mail Notice Service for printer status updates.

Setting Up E-mail Environment

Guides on configuring network and mail server settings for email features.

Printer Cleaning Procedures

Cleaning the Printer Exterior

Instructions for cleaning the outside surfaces of the printer.

Cleaning the Printer Interior

Instructions for cleaning dust and debris from inside the printer.

Cleaning Feed Rollers

Procedure for Removing and Cleaning Feed Rollers

Detailed steps for removing, cleaning, and replacing feed rollers.

Cleaning Rollers Inside Printer

Steps to clean internal feed rollers after removing the drum/toner cartridge.

Cleaning Tray Module Rollers

Instructions for cleaning rollers in paper trays and optional tray modules.

Moving the Printer Safely

Printer Weight and Lifting Precautions

Information on printer weight and safety measures for lifting.

Preparing Printer for Moving

Steps to prepare the printer for relocation, including removing paper and cartridges.

Appendix A: PCL Emulation Symbol Sets

Oki B720 Specifications

General

Print Resolution	Up to 1200 x 1200 dpi
Duplex Printing	Yes
Print Technology	Laser
Functionality	Print
Connectivity	USB 2.0, Ethernet
Operating System Compatibility	Windows, Mac, Linux
Emulation	PCL6, PostScript 3