Lexmark 4090-001 manual Print Quality Service Check

Page 23

4090-001

Print Quality Service Check

 

FRU

Action

 

 

 

1

Print Cartridge

Be sure the printer contains good print cartridges.

 

 

 

2

Printhead Carrier

Reseat the printhead cables in the system board

 

Assembly

and check the following parts for wear or damage:

 

 

•

Print Cartridge Latch

 

 

•

Latch Spring

 

 

•

Carrier

 

 

 

 

3

System Board

•

Perform the ’Test Page’ on page 3-7. Look for a

 

 

 

break in the diagonal line of the test pattern. A

 

Printhead Cable

 

broken line indicates one or more print nozzles

 

Rubber Backer

 

are not working. Run the test again to verify the

 

 

failure. If there are even breaks in the diagonal

 

 

 

line similar to the pattern shown below, replace

 

 

 

the system board.

 

 

If there is a single break or random breaks in the

 

 

diagonal line check the following:

 

 

• Check the gold-plated contacts, on the end of

 

 

 

the cable that connect to the carrier, for dirt and

 

 

 

wear. Use only a clean dry cloth to clean the

 

 

 

contacts. Also check the cable for damage. You

 

 

 

may need to remove the cable from the carrier

 

 

 

to inspect it.

 

 

• A worn rubber backer results in poor contact

 

 

 

between the printhead cable and the print

 

 

 

cartridge. Check the rubber backer for wear.

 

 

 

4

Maintenance

Intermittent nozzle failures can be caused by worn

 

Station

parts in the maintenance station. Perform the

 

 

’Maintenance Station Service Check’ on page 2-7,

 

 

then return to this check.

 

 

 

 

Diagnostic Information 2-12

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Contents 4090-001 4090-001 Contents Connector Locations Preventive Maintenance Preface Safety InformationNorme di sicurezza SicherheitshinweiseConsignes de Sécurité Informações de Segurança Pautas de SeguridadSikkerhedsoplysninger Chinese Safety Information Korean Safety Information General Information Resolution and Print SpeedPower Consumption Maintenance ApproachAbbreviations 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 First Print Line Service Check Service ChecksEnvelope Feed 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 InformationReleasing Plastic Latches AdjustmentsRemoval Procedures Carrier Belt Removal Base Assembly RemovalCarrier Frame Assembly Removal Carrier Transport Motor Removal Encoder Strip Removal Code Module RemovalEdge Guide Asm and Paper Load Shaft Removal Encoder Card RemovalExit Roller Removal Feed Arm Assembly RemovalExit Drive Belt Removal Gutter Pad Removal Front Cover RemovalInside Idler Gears Removal Large Feed Roll Removal Large Outside Gear Removal Left Side Frame Assembly Removal Manual Insert Tray Removal Maintenance Station Assembly RemovalMaintenance Wipers and Caps Removal Mid Frame Assembly RemovalPaper Feed Motor Removal Paper Guide and EOF Flag Assembly Removal4090-001 Pick Roll Hub, Shaft and Envelope Bucklers Removal Power Supply RemovalPaper Load Door Removal Printhead Cable, Cradle & Paper Deflector Removal 4090-001 Printhead Rubber Backer Removal Printhead Carrier Assembly RemovalRear Cover Removal Right Side Frame Assembly RemovalSystem Board Removal Small Feed Roll Shaft, Rollers & Paper Flap RemovalStar Roller 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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