How to fix Laser diode failure (Y) on Brother Printer?
- JjeremymasseySep 12, 2025
To address a laser diode failure (Y) on your Brother printer, try turning the power off and then back on again.

How to fix Laser diode failure (Y) on Brother Printer?
To address a laser diode failure (Y) on your Brother printer, try turning the power off and then back on again.
How to fix Laser diode failure (M) on Brother Printer?
To address a laser diode failure (M) on your Brother printer, try turning the power off and then back on again.
How to fix Laser diode failure (C) on Brother Printer?
To address a laser diode failure (C) on your Brother printer, try turning the power off and then back on again.
| Print technology | Laser |
|---|---|
| Maximum resolution | 2400 x 600 DPI |
| Time to first page (color, normal) | 16 s |
| Print speed (black, normal quality, A4/US Letter) | 20 ppm |
| Scan to | e-mail, file, image, OCR |
| Input color depth | 48 bit |
| Copier resize | 25 - 400 % |
| PC free copying | Yes |
| Maximum copy resolution | 1200 x 600 DPI |
| Maximum number of copies | 99 copies |
| N-in-1 copy function (N=) | 2, 4, 9, 16 |
| Copy speed (black, normal quality, A4) | 16 cpm |
| Faxing | Color faxing |
| Fax memory | 400 pages |
| Modem speed | 33.6 Kbit/s |
| Fax speed dialing (max numbers) | 300 |
| Total input capacity | 250 sheets |
| Total output capacity | 150 sheets |
| Multi-Purpose tray input capacity | 50 sheets |
| Auto document feeder (ADF) input capacity | 35 sheets |
| Internal memory | 64 MB |
| Maximum internal memory | 576 MB |
| Sound power level (standby) | 30 dB |
| Sound pressure level (printing) | 54.5 dB |
| Display | LCD |
| Market positioning | Business |
| Non-ISO print media sizes | Executive (184 x 267mm), Folio (media size), Legal (media size), Letter (media size) |
| ISO A-series sizes (A0...A9) | A4, A5, A6 |
| ISO B-series sizes (B0...B9) | B5, B6 |
| JIS B-series sizes (B0...B9) | B5 |
| Maximum ISO A-series paper size | A4 |
| Font styles | 66 Scaleable fonts, 12 Bitmap fonts, 13 Barcodes |
| Dimensions (WxDxH) | 432 x 487 x 482 mm |
| Networking features | 10/100 Base-TX |
| All-in-one functions | Copy, Fax, Scan |
| Color all-in-one functions | copy, fax, print, scan |
| Compatible operating systems | Windows Vista/XP/Home/2003/2000 Mac OS X 10.2.4 or greater Linux |
| Standard interfaces | USB 2.0 |
| Power consumption (standby) | 95 W |
| Power consumption (PowerSave) | 28 W |
| Power consumption (average operating) | 495 W |
| Package weight | 38600 g |
| Sustainability certificates | ENERGY STAR |
| Digital sender | No |
Instructions for registering the product with Brother for owner records and support.
Contact information for technical support and customer service in the United States and Canada.
Identifies the original end-user/retail purchaser covered by the warranty.
Details what the product, consumables, and accessory items include and their warranty status.
Specifies warranty duration for machines and accompanying items.
Lists exclusions from warranty coverage, including damage and improper use.
Instructions on how to report an issue for warranty service.
Explains Brother's commitment for repair or replacement under warranty.
Lists customer responsibilities for troubleshooting and service access.
Outlines warranty limitations, disclaimers, and exclusions of liability.
Details Brother's commitment for repair or replacement under Canadian warranty.
Lists customer responsibilities for troubleshooting and service access in Canada.
Outlines Canadian warranty limitations, disclaimers, and exclusions of liability.
Introduction to the user guide, symbols, and accessing support.
Instructions on loading various types of paper and documents into trays and ADF.
Guides on setting up machine modes, paper settings, and volume adjustments.
Setting up security levels using Setting Lock and Memory Security.
Procedures for enabling or disabling the Setting Lock feature.
Preventing unauthorized access to machine operations via memory security.
Procedures for enabling or disabling Memory Security.
Detailed steps for sending faxes via ADF, scanner glass, broadcasting, and multiple settings.
Guidance on selecting receive modes and managing incoming fax calls.
Information on services like Voice Mail and Distinctive Ring.
Instructions for connecting an external answering device.
Advice on connecting the machine to a PBX system.
Operating the machine from extension or external telephones.
Explains how to set and use remote access codes for managing faxes.
Basic instructions for dialing numbers using various methods.
How to store and use one-touch dialing numbers.
Steps for storing and using speed-dial numbers.
General instructions for setting up easy dialing features.
Detailed guide to storing numbers on one-touch keys.
Instructions for storing up to 300 speed-dial numbers.
Process for creating groups for sending faxes to multiple recipients.
Setting up automatic forwarding of received faxes to another machine.
How to set up paging to notify your pager when a fax is received.
Feature to store received faxes in memory for later retrieval.
Storing received faxes on PC via software.
Modifying settings for remote fax features.
Accessing stored fax messages remotely.
Creating a secure code to access retrieval features remotely.
Table of commands for accessing features remotely.
Instructions on calling other fax machines to receive faxes and sequential polling.
Overview of available fax reports like transmission verification and fax journal.
Comprehensive guide on how to perform copying operations, including single and multiple copies.
Adjusting the size of the copied image.
Steps to enhance the quality of copied documents.
Copying multiple pages onto a single sheet to save paper.
Changing the paper tray used for the next copy job.
Guide to connecting and printing photos from PictBridge compatible digital cameras.
How to connect a camera as a storage device for printing photos without PictBridge.
Explains common error messages encountered during photo printing.
Explains how to access user guides for software and network features from the CD-ROM.
Instructions on accessing and navigating the HTML user guides.
Lists the file formats directly supported for printing from USB drives.
Step-by-step guide to printing files from a connected USB flash drive.
Explains common error messages related to USB direct printing.
Guidance on how to use the user manual and understand its conventions.
Explanation of symbols and formatting used throughout the documentation.
Information on how to find additional user guides on the CD-ROM.
How to find scanning instructions within the Software User's Guide.
Where to find guidance for ScanSoft PaperPort software.
Where to find guidance for Presto! PageManager software.
Description of the One-Touch keys for accessing stored numbers.
Explanation of the Liquid Crystal Display and its functions.
Information about the Data LED status indicators.
Details on the Menu, Clear/Back, OK, and Volume keys.
Explanation of the dial pad keys for dialing and input.
Function of the Stop/Exit key.
Explanation of the Start key for initiating copy or fax operations.
Description of the Fax, Scan, and Copy mode keys.
Explanation of the Options and Enlarge/Reduce keys.
Function of the Hook, Redial/Pause, and Resolution keys.
Description of Direct, Secure, and Job Cancel keys.
Step-by-step guide for loading plain paper into the standard paper tray.
Suggestions for paper types to achieve the best print quality.
Specifications for paper types and sizes supported by the machine's trays.
Details about the standard paper tray's capacity and supported paper.
Capacity and paper support for the MP tray.
Capacity and paper support for the optional lower tray.
Table detailing the sheet capacity for each paper tray.
Technical specifications for paper suitable for the machine.
Important considerations when choosing paper for the machine.
Lists paper types that may cause damage or poor performance.
Specific guidance on using envelopes, including types to avoid.
Lists specific types of envelopes that should not be used.
Lists specific types of labels that should not be used to prevent machine damage.
Detailed steps for using the ADF to feed documents for faxing, copying, and scanning.
Instructions on using the scanner glass for processing single-page documents.
Specifics on unprintable margins for copy jobs.
Details on unprintable margins for computer print jobs.
Setting the duration before the machine returns to Fax mode after inactivity.
Configuration of paper type and size for optimal print quality.
How to set the machine for different paper types.
How to set the machine for different paper sizes used in trays.
Selecting paper trays for Copy, Fax, and Print modes.
Adjusting ring, beeper, and speaker volumes.
Adjusting the contrast of the machine's LCD screen.
Setting up automatic dialing of a prefix number before fax numbers.
Setting up security levels using Setting Lock and Memory Security.
Protecting machine settings by requiring a password.
Preventing unauthorized access to machine operations via memory security.
Basic steps to enter fax mode and initiate fax transmission.
Step-by-step instructions for sending faxes using the automatic document feeder.
Guide to sending single-page faxes using the scanner glass.
How to stop a fax transmission that is currently active.
Sending the same fax message to multiple recipients simultaneously.
Advanced settings and options for sending faxes.
Automatically sending a cover page with fax transmissions.
Adjusting contrast for optimal fax quality based on document lightness/darkness.
Adjusting resolution settings for better fax quality.
Allowing other operations while faxing or scanning.
Setting faxes to send immediately without using memory.
Scheduling faxes to be sent at a later time.
Viewing and cancelling scheduled fax jobs.
Performing fax transmission with manual control over dialing and sending.
Handling the "Out of Memory" message during fax operations.
Selecting the appropriate mode based on telephone line setup and services.
Explains different receive modes like Fax Only, Fax/Tel, Manual, and External TAD.
Configuring settings related to how the machine receives faxes.
Setting the number of rings before the machine answers.
Adjusting the time for the machine's pseudo/double-ring alert for voice calls.
Enabling automatic fax reception when answering a call.
Adjusting density for darker or lighter printouts.
Automatically resizing incoming faxes to fit on one page.
Printing date and time on received fax pages.
Sending a fax after a phone call.
Printing faxes that are stored in the machine's memory.
Information on services like Voice Mail and Distinctive Ring.
How to manage voice mail and avoid conflicts with the machine.
Setting up the Distinctive Ring feature for separate fax/voice lines.
Instructions for connecting an external answering device.
Discusses roll over telephone lines and two-line telephone systems.
Operating the machine from extension or external telephones.
Explains how to set and use remote access codes for managing faxes.
Basic instructions for dialing numbers using various methods.
Basic instructions for dialing numbers using the dial pad.
How to store and use one-touch dialing numbers.
Steps for storing and using speed-dial numbers.
General instructions for setting up easy dialing features.
Detailed guide to storing numbers on one-touch keys.
Instructions for storing up to 300 speed-dial numbers.
Process for creating groups for sending faxes to multiple recipients.
Combining quick-dial numbers with access codes for carrier rates.
Setting up automatic forwarding of received faxes to another machine.
How to set up paging to notify your pager when a fax is received.
Feature to store received faxes in memory for later retrieval.
Storing received faxes on PC via software.
Modifying settings for remote fax features.
Steps to disable remote fax functionalities.
Accessing stored fax messages remotely.
Creating a secure code to access retrieval features remotely.
Modifying the destination number for forwarded faxes.
Table of commands for accessing features remotely.
Instructions on how to call another fax machine to receive a fax.
Requesting documents from multiple fax machines in one operation.
Information on printing various reports like help lists and user settings.
Comprehensive guide on how to perform copying operations, including single and multiple copies.
Temporarily changing copy settings for the next copy job.
Adjusting the size of the copied image.
Steps to enhance the quality of copied documents.
How to sort multiple copies when using the ADF.
Modifying brightness, contrast, and color saturation for copies.
Copying multiple pages onto a single sheet to save paper.
Changing the paper tray used for the next copy job.
Guide to connecting and printing photos from PictBridge compatible digital cameras.
How to connect a camera as a storage device for printing photos without PictBridge.
Explains common error messages encountered during photo printing.
Explains how to access user guides for software and network features from the CD-ROM.
Instructions on accessing and navigating the HTML user guides.
Lists the file formats directly supported for printing from USB drives.
Instructions for creating specific file types for direct printing.
Step-by-step guide to printing files from a connected USB flash drive.
Explains common error messages related to USB direct printing.
Important safety precautions, warnings, and legal notices for using the machine.
Details on optional accessories available for the machine.
Guides for resolving common issues and performing regular maintenance.
Explanation of the machine's menu structure and programming options.
Technical details and performance specifications for the machine.
Definitions of terms and features used in the manuals.
Guidelines for selecting a safe and suitable environment for the machine.
Important warnings regarding electrical hazards and safe operating procedures.
Cautionary advice about touching hot internal parts after use.
Notice regarding the fuser unit and its caution label.
Advice on avoiding injuries when interacting with machine parts.
Precautions for cleaning toner dust and disposing of it safely.
Guidelines for safely moving or lifting the machine, requiring multiple people.
Cautions for installing or modifying telephone lines, especially during storms.
Fundamental safety precautions to reduce risks of fire, electric shock, and injury.
Requirement for using a specific gauge telecommunication line cord.
FCC compliance information and telephone line connection guidelines for the USA.
Information on potential network impacts and customer notification procedures.
FCC compliance statement for Class B digital devices regarding interference.
Steps to take if the equipment causes harmful interference to radio or TV reception.
Requirement for using a shielded interface cable for Class B digital device compliance.
Class B digital apparatus compliance statement for Canada (ICES-003).
Instructions for disconnecting power in emergencies.
Warning against connecting to LAN connections subject to over-voltages.
Information regarding the machine's certification as a Class 1 laser product.
Compliance with FDA regulations for laser products manufactured after August 2, 1976.
Key safety instructions for proper operation and maintenance of the machine.
Ensuring proper use of the grounded plug and AC power outlet.
Guidelines for safe use and handling of the power cord and cables.
Fundamental safety precautions to reduce risks of fire, electric shock, and injury.
Lists documents issued by US/Canadian Government agencies that may not be copied.
Guidelines on copying copyrighted materials and the concept of fair use.
Lists registered trademarks of Brother and other companies.
Notes on software license agreements specific to proprietary programs.
Details about the LT-100CL optional lower tray unit.
Information regarding memory expansion options for the machine.
Order number and capacity information for the optional lower tray.
Step-by-step instructions for installing the optional lower tray unit.
Details on standard and optional memory module specifications.
Steps for configuring memory options on Windows systems.
Notes on configuring memory options for Macintosh systems.
Detailed instructions for installing memory modules into the machine.
General tips for diagnosing and solving machine problems.
Solutions for common issues with fax printing and reception quality.
Troubleshooting steps for issues related to telephone line connectivity.
Solutions for problems encountered during fax transmission.
Troubleshooting steps for issues related to handling incoming calls.
Guidance for issues accessing machine menus.
Solutions for problems affecting the quality of copies.
Troubleshooting steps for issues related to printing.
Solutions for problems encountered during scanning operations.
Troubleshooting steps for network-related printing and scanning issues.
Solutions for common problems related to paper loading and feeding.
Troubleshooting steps for issues affecting print quality.
Further troubleshooting for network connectivity and feature issues.
Steps and recommendations to resolve print quality issues.
Procedure for cleaning corona wires to improve print quality.
Instructions for cleaning the drum unit to resolve print quality problems.
Information on replacing toner cartridges, drum units, and waste toner boxes.
Step-by-step guide for replacing toner cartridges.
Instructions for replacing the drum unit.
Procedure for replacing the belt unit.
Instructions for replacing the waste toner box.
Explanation of the machine's menu structure and programming options.
A reference listing menu selections, options, and descriptions.
Guide to inputting text characters using the dial pad for menu selections.
Technical details including memory, ADF, paper trays, and power.
Operating environment specifications and sound levels.
Details on paper input types, sizes, weights, and paper output capabilities.
Technical details related to fax compatibility, modem speed, resolution, and dialing.
Performance details for copy speed, document size, and resolution.
Technical details for scanning resolution, color depth, and document size.
Details on printer emulations, drivers, resolution, and print speed.
Compatibility and interface details for PictBridge printing.
Supported file formats for direct printing from USB drives.
Minimum system requirements and supported PC software functions.
Information on toner cartridge life, drum unit expectancy, and waste toner box.
Details on network board model, LAN support, protocols, and management utilities.
The document can be placed in the ADF and scanned one page at a time automatically.
Reduces the size of incoming faxes.
Sending a fax without picking up the handset of the external telephone or pressing Hook.
Prints a copy of every fax received and stored in memory.
Sends all delayed faxes to the same number as one transmission.
The ability to send the same fax message to more than one location.
Method of coding document information, supporting various compression standards.
An error during fax sending or receiving, usually caused by line noise or static.
Setting to compensate for dark or light documents.
Sends your fax at a specified later time that day.
Subscriber service for receiving fax and voice calls on one line.
Scan outgoing faxes or jobs into memory while sending/receiving.
Enables machine to respond to CNG tones if a fax call is interrupted.
Resolution of 203 x 196 dpi, used for small print and graphs.
Combination of numbers stored for broadcasting.
A printout of the Menu table for programming the machine.
Display screen showing messages during programming and idle time.
Hear receiving fax machine answer before transmission.
Programming mode for changing machine settings.
Software to convert text images into editable text.
Control panel keys for storing numbers for easy dialing.
Temporary changes for fax tones to accommodate overseas line noise.
Feature to call pager when a fax is received into memory.
Allows 3.5 second delay in dialing sequence stored on keys.
Allows printing photos directly from PictBridge compatible digital cameras.
Process of a fax machine calling another to retrieve waiting fax messages.
Four-digit code to call and access machine from a remote location.
Number of vertical and horizontal lines per inch.
Number of rings before machine answers in Fax Only/Fax/Tel modes.
Process of sending an electronic image of a paper document to a computer.
Electronic, alphabetical listing of stored numbers.
Pre-programmed number for easy dialing.
Stored information appearing on faxed pages.
External device or answering machine connectable to the EXT jack.











