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Table of Contents
Troubleshooting
Related Manuals for Oki COREFIDO B842dn
Summarization of Contents
1 Read this first
Safety precautions
Read this manual to use the product safely and understand warnings and cautions.
General precautions
Important safety warnings and precautions for machine operation, electrical safety, and handling.
Cautions
Notes on energy saving, printing of securities, network connection, and radio interference.
Trademarks
Lists OKI trademarks and registered trademarks of other companies.
About this manual
Information on manual structure, copyrights, and how descriptions are presented.
Features of this machine
Highlights key features like easy maintenance, warm-up time, extension tray, and web page management.
2 Preparing and connecting this machine to your PC
About Installation
Details on required installation environment, including temperature, humidity, and ventilation.
Installation space
Specifies required space around the machine for proper operation and ventilation.
Unpacking
Step-by-step instructions for safely unpacking the machine and its components.
Checking the accessories
Lists all included accessories and components to verify upon unpacking.
Installing optional accessories
Instructions for installing optional accessories like Wireless LAN module, Expansion Tray, etc.
Connecting the power cord
Details on power connection, including power supply requirements and safe connection procedures.
Loading paper in the tray
Procedure for loading various paper sizes into the paper cassettes.
Connecting via a wired LAN
Steps to connect the machine to a PC using a LAN cable and set up network information.
Connection form via a wireless LAN
Explains two wireless connection methods: Infrastructure and AP mode.
Connecting via an access point (Infrastructure)
Detailed steps to connect the machine to a wireless LAN via an access point.
Connecting directly with this machine (AP mode)
Instructions for setting up the machine as a wireless access point for direct connection.
Connecting via USB
Procedure for connecting the machine to a PC using a USB cable.
Installing software on a PC
Guide to installing printer drivers and other software on a PC for Windows and macOS.
3 Basic operations
Parts identification
Identifies and explains the function of each part of the main unit, front and back views.
Turning the power on/off
Instructions for turning the machine's power on and off, including force shutdown.
Loading paper
Details on checking applicable paper, loading paper into trays, and setting paper information.
Checking the output tray
Information on the output tray capacity and how to manage stacked paper.
Checking the information of this machine
How to print and check machine information, including configuration and network status.
4 Changing settings from the operator panel
Parts identification of the operator panel
Identifies the display, buttons, lamps, and their functions on the operator panel.
Inputting text
Explains how to input alphabetic and numeric characters using the operator panel scroll buttons.
Changing settings
Describes how to navigate menus and change various settings directly from the operator panel.
Adjusting the buzzer volume
Instructions for adjusting buzzer volume for errors, print completion, and printer discovery.
Setting the power save function
How to configure the time before entering power save mode and sleep mode.
5 Printing from a PC
Printing from a PC
General instructions for printing from a PC using Windows PCL and PS printer drivers.
Screens and functions of the printer driver
Overview of the printer driver interface and functions for Windows PCL and PS.
Printing on various types of paper
Guides for printing on postcards, envelopes, labels, and long paper.
Printing methods
Explains methods like printing one sheet at a time, enlarging/reducing, and N-in-1 printing.
Printing in economy mode
Instructions for saving paper and toner, including duplex printing and toner save mode.
Refining your finishing
Tips for improving print quality, such as setting print resolution and correcting fine lines.
Useful functions
Describes functions like collating pages, rotating pages, and printing from the last page.
Printing with print data encrypted and password set (Private Print)
How to encrypt print data and set a password for secure printing.
Canceling the printing
Procedures for canceling print jobs from the operator panel or from a PC.
6 Management of this machine
Admin Password
How to check and change the admin password for machine settings.
Changing settings of Admin Setup
Procedure for administrators to change various machine settings via the operator panel.
Managing the machine from the web page
Instructions for accessing and managing the machine's settings via its web page.
User restriction (Access control)
How to set up user authentication and access control to limit operations.
Initializing the settings
Steps to reset network settings, flash memory, or all machine settings to factory defaults.
Moving/Transporting this machine
Guidelines and procedures for safely moving or transporting the machine.
Disposal
Recommendations for erasing data before disposing of the machine and proper disposal methods.
7 Useful software
Software list
Lists available Windows, macOS, and mobile device software with their descriptions and references.
Installing software
Instructions for installing software from DVD or website for Windows and macOS.
Monitoring Tool (Windows)
Details on using the Monitoring Tool for firmware updates and maintenance part status.
Network Extension
How to display and confirm settings of the machine via Network Extension.
PS Gamma Adjuster
Guide to adjusting halftone density for better image quality on photos.
Configuration Tool
Instructions for registering, starting, and checking the Configuration Tool.
OKI LPR Utility
How to use the OKI LPR Utility for printing, managing jobs, and checking machine state.
Network Card Setup Utility (macOS)
Steps for setting up network parameters like IP address using the macOS utility.
Print Job Accounting Client
Information on setting user name and ID for job accounting and access control.
8 Printing from a mobile device
Printing with Mobile Print
Instructions for printing photos, web pages, and more using the Mobile Print application.
Printing with AirPrint
How to print wirelessly from Mac, iPhone, iPad, and iPod touch using AirPrint.
Printing with Mopria Print Service
Guide to printing from Android or Windows devices using Mopria Print Service.
Printing with IPP Everywhere
Instructions for printing from Linux or Chromebook using IPP Everywhere.
Printing with Print Plugin
How to print from Android devices using the OKI Print Plugin.
Showing troubleshooting tips on a mobile device
How to access detailed solutions for errors via NFC and the 'FAQ' on the website.
9 Maintenance
Precautions for replacing consumables and maintenance parts
Important safety precautions and handling advice during replacement of parts.
Service life and replacement cycle of consumables
Information on toner cartridge identification, service life, and replacement cycle.
Replacing toner cartridges
Step-by-step instructions for safely replacing the toner cartridge.
Replacing the image drum
Procedure for replacing only the image drum, keeping the existing toner cartridge.
Replacing the image drum and the toner cartridge
Instructions for replacing both the image drum and toner cartridge simultaneously.
Free maintenance parts
Information on obtaining free replacement parts for designated maintenance items.
Service life and replacement cycle of maintenance parts
Details on the service life and replacement cycle of the maintenance kit (fuser/transfer roller).
Replacing the maintenance kit
Step-by-step guide to replace the fuser and transfer roller.
Replacing the paper feed roller (Tray1)
Instructions for replacing the paper feed roller in Tray 1.
Replacing the paper feed roller (Tray2/3/4)
Instructions for replacing the paper feed roller in Tray 2, 3, or 4.
Replacing the paper feed roller (MP Tray)
Procedure for replacing the paper feed roller in the MP Tray.
Cleaning the main unit and the parts
Guides for cleaning the LED head, main unit surface, and paper feed rollers.
Installing the transport assistance guide
Instructions for reinstalling the transport assistance guide if it becomes detached.
Updating software
How to update printer drivers and other software to the latest version.
Deleting software
Steps for uninstalling printer drivers for Windows and macOS.
Firmware update
Instructions for updating the printer firmware using the Monitoring Tool.
10 Troubleshooting
When an error message appears on the display
Guidance on interpreting error messages, using the HELP button, and searching for solutions.
When a paper jam occurs
Detailed steps to clear paper jams for various error codes (e.g., 370, 371, 372, 380, 381).
Trouble with printing
Common printing issues for Windows/macOS and their solutions.
Troubleshooting for printing results
Visual guide to identify and resolve common print quality issues like streaks and faint printing.
Software troubleshooting
Guidance on troubleshooting issues related to the Monitoring Tool.
Troubleshooting for this machine and paper
Covers common machine symptoms like no display, frozen state, or power issues.
Appendix
Specifications
Detailed technical specifications for B822dn and B842dn models, including CPU, memory, power, and interface.
Dimensions
Provides plan and side view dimensional drawings with measurements for B822dn and B842dn.
Using the FAQ guide of this machine
Instructions on how to search for solutions using the FAQ on the website via the mobile device.
List of consumables, maintenance parts, options and paper
Catalog of consumables, maintenance parts, and optional accessories with product names and models.
Menu tree
Hierarchical structure of the machine's menu options for configuration and settings.
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