Lexmark 4090-001 manual Transport Service Check, Perform the ’Encoder Sensor Test’ on page 3-2. If

Page 25

4090-001

Transport Service Check

 

FRU

Action

 

 

 

1

Transport Motor

Check the motor for binds, or loose motor pulley.

 

 

Disconnect the transport motor (J4) from the

 

 

system board. Check for 8 to 18 ohms between

 

 

pins 1 and 2 on the motor cable. If the reading is

 

 

incorrect, replace the motor.

 

 

Check for motor pins shorted to the motor housing.

 

 

If you find a pin shorted to the housing, replace the

 

 

motor. If the failure remains, replace the system

 

 

board.

 

 

 

2

System Board

Turn the printer off and disconnect J4 from the

 

 

system board. Turn the printer on and check for a

 

 

pulse of 6 to 8 V dc between J4-1 and ground as

 

 

the printer goes through POST.

 

 

 

3

Carrier Guide Rod

Clean the carrier rod.

 

 

Note: Do not lubricate the rod or the carrier rod

 

 

bearing surface.

 

 

 

4

Transport Belt

Check for worn, loose or broken parts. Check for

 

Idler Pulley Parts

obstructions blocking carrier movement.

 

Carrier to carrier frame engagement should be

 

 

 

Carrier Frame

lubricated with grease P/N 1329301.

 

 

 

5

Encoder Strip

Check for wear and dirt.

 

 

 

6

Printhead Cable

Be sure connector J2 is fully seated. Check the

 

 

cable for damage.

 

Encoder Strip

Perform the ’Encoder Sensor Test’ on page 3-2. If

 

Encoder Card

you cannot enter the test, replace the system

 

System Board

board.

 

 

 

7

Maintenance

A problem with the maintenance station can cause

 

Station

carrier movement problems at the right margin. Go

 

 

to the ’Maintenance Station Service Check’ on

 

 

page 2-7.

 

 

 

Diagnostic Information 2-14

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Contents 4090-001 4090-001 Contents Connector Locations Preventive Maintenance Preface Safety InformationConsignes de Sécurité SicherheitshinweiseNorme di sicurezza Sikkerhedsoplysninger Pautas de SeguridadInformações de Segurança Chinese Safety Information Korean Safety Information Power Consumption Resolution and Print SpeedMaintenance Approach General InformationAbbreviations Unique Tools Required For ServiceStart Diagnostic InformationPower-On Self Test Post Sequence Error Indicator TableSymptom Action Post Symptom TableCarrier Transport Problems Symptom Tables4090-001 Paper Feed Problems Envelope Feed Service Check Service ChecksFirst Print Line Service Check Maintenance Station Service Check Paper Feed Service Check Perform the ’Paper Path Service Check’ on Paper Path Service Check Power Service Check Parallel Port Service CheckPrint Quality Service Check Do not lubricate the carrier guide rod or Perform the ’Encoder Sensor Test’ on page 3-2. If Transport Service CheckDiagnostic Aids Encoder Sensor Test Initialize Error Log Paper Sensor Test Parallel Port Test Print Nvram Contents Test Handling ESD-Sensitive Parts Repair InformationRemoval Procedures AdjustmentsReleasing Plastic Latches Carrier Belt Removal Base Assembly RemovalCarrier Frame Assembly Removal Carrier Transport Motor Removal Edge Guide Asm and Paper Load Shaft Removal Code Module RemovalEncoder Card Removal Encoder Strip RemovalExit Drive Belt Removal Feed Arm Assembly RemovalExit Roller Removal Gutter Pad Removal Front Cover RemovalInside Idler Gears Removal Large Feed Roll Removal Large Outside Gear Removal Left Side Frame Assembly Removal Maintenance Wipers and Caps Removal Maintenance Station Assembly RemovalMid Frame Assembly Removal Manual Insert Tray RemovalPaper Feed Motor Removal Paper Guide and EOF Flag Assembly Removal4090-001 Paper Load Door Removal Power Supply RemovalPick Roll Hub, Shaft and Envelope Bucklers Removal Printhead Cable, Cradle & Paper Deflector Removal 4090-001 Printhead Rubber Backer Removal Printhead Carrier Assembly RemovalRear Cover Removal Right Side Frame Assembly RemovalStar Roller Removal Small Feed Roll Shaft, Rollers & Paper Flap RemovalSystem Board Removal Connector Locations System Board Connectors Connector Connector Names Encoder Card ConnectorLubrication Specifications Preventive MaintenanceParts Catalog How To Use This Parts Catalog Assembly 1 Covers Asm Part Units Description Index Number Assembly 2 Frames 4090-001 Assembly 3 Paper Feed 4090-001 Assembly 4 Electronics 70G2695 System Board, W/O Code Module Assembly 4 Electronics 4090-001 Assembly 5 Carrier 4090-001 Assembly 6 Carrier Transport 4090-001 Assembly 7 Sheet Feeder 4090-001 Assembly 8 Maintenance Station 4090-001 Post Index4090-001

4090-001 specifications

The Lexmark 4090-001 is a robust and reliable printer that caters to the needs of high-volume printing environments. Known for its durability and efficiency, the Lexmark 4090-001 is often utilized in commercial settings where performance and quality are paramount.

One of the standout features of the Lexmark 4090-001 is its print speed, which is capable of delivering up to 120 characters per second. This rapid output makes it ideal for organizations that require fast and efficient printing solutions for invoices, reports, and other documents. Its high-speed performance does not compromise on the quality of the print; it produces clear and crisp text output, ensuring that important documents maintain a professional appearance.

The Lexmark 4090-001 utilizes a 24-pin dot matrix technology, which enhances the clarity and precision of printed characters and graphics. This technology is particularly beneficial for printing multi-part forms, where the device can effectively create multiple copies at once without sacrificing quality. The printer is engineered to handle a variety of media types, including labels, envelopes, and continuous forms, making it versatile and adaptable to diverse business needs.

Another characteristic of the Lexmark 4090-001 is its extensive connectivity options. It supports parallel and serial interfaces, allowing it to be easily integrated into existing network systems. This feature ensures that multiple users can access the printer simultaneously, boosting productivity in the workplace.

User-friendly design elements, such as a simple control panel and easy-loading mechanisms for paper, enhance operational efficiency. Maintenance is also simplified, which limits downtime and ensures that users can focus on their tasks without dealing with complex printer issues.

Furthermore, the Lexmark 4090-001 is built with longevity in mind. Its sturdy construction is designed to withstand the rigors of daily use, making it a cost-effective solution for businesses looking to invest in long-term printing capabilities.

In summary, the Lexmark 4090-001 combines high-speed printing, advanced dot matrix technology, versatile media handling, and user-friendly features, all wrapped in a robust design. It is an admirable choice for businesses that require consistent performance and exceptional print quality in a demanding work environment.
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