Lexmark 4090-001 manual Perform the ’Paper Path Service Check’ on

Page 20

4090-001

 

FRU

Action

 

 

 

2

Paper Feed Motor

A noisy or chattering motor or a motor that fails to

 

 

turn, can be caused by:

 

 

• An open or short in the motor

 

 

• An open or short in the motor driver on the

 

 

system board

 

 

• A bind in the paper feed mechanism

 

 

With the paper feed motor cable disconnected

 

 

from the system board, check for 5 to 10 ohms

 

 

between pin 1 and 4 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 shorted pin, replace the motor. If the

 

 

failure remains, replace the system board.

 

 

Although the paper feeds in a forward direction

 

 

only, the paper feed motor turns in two directions.

 

 

If the paper feed motor turns in one direction only,

 

 

replace the system board.

 

 

Binds in the paper feed motor or gear train can

 

 

cause intermittent false paper jam errors. Remove

 

 

the paper feed motor and check the shaft for binds.

 

 

Also check for loose or worn motor gear.

 

 

 

3

Gears

Check for binds in the gear train and paper feed

 

 

mechanism by rotating the large feed roll by hand.

 

 

If you notice a bind, isolate it by removing one of

 

 

the small idler gears on the inside of the left side

 

 

frame. Replace any worn or binding gears or

 

 

rollers.

 

 

 

4

Feed Arm

At the beginning of the paper feed operation, the

 

Assembly

paper feed motor reverses momentarily to allow

 

 

the feed arm pawl to drop off the home position

 

 

notch in the left side frame. If the pawl fails to drop

 

 

off the notch, check the feed arm assembly for

 

 

binds, and worn or broken parts.

 

 

 

5

Paper Path

Perform the ’Paper Path Service Check’ on page

 

 

2-10, starting at Step 1.

 

 

 

2-9

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Contents 4090-001 4090-001 Contents Connector Locations Preventive Maintenance Safety Information PrefaceNorme di sicurezza SicherheitshinweiseConsignes de Sécurité Informações de Segurança Pautas de SeguridadSikkerhedsoplysninger Chinese Safety Information Korean Safety Information Resolution and Print Speed Power ConsumptionMaintenance Approach General InformationUnique Tools Required For Service AbbreviationsDiagnostic Information StartError Indicator Table Power-On Self Test Post SequencePost Symptom Table Symptom ActionSymptom Tables Carrier Transport Problems4090-001 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 Parallel Port Service Check Power Service CheckPrint Quality Service Check Do not lubricate the carrier guide rod or Transport Service Check Perform the ’Encoder Sensor Test’ on page 3-2. IfDiagnostic Aids Encoder Sensor Test Initialize Error Log Paper Sensor Test Parallel Port Test Print Nvram Contents Test Repair Information Handling ESD-Sensitive PartsReleasing Plastic Latches AdjustmentsRemoval Procedures Base Assembly Removal Carrier Belt RemovalCarrier Frame Assembly Removal Carrier Transport Motor Removal Code Module Removal Edge Guide Asm and Paper Load Shaft RemovalEncoder Card Removal Encoder Strip RemovalExit Roller Removal Feed Arm Assembly RemovalExit Drive Belt Removal Front Cover Removal Gutter Pad RemovalInside Idler Gears Removal Large Feed Roll Removal Large Outside Gear Removal Left Side Frame Assembly Removal Maintenance Station Assembly Removal Maintenance Wipers and Caps RemovalMid Frame Assembly Removal Manual Insert Tray RemovalPaper Guide and EOF Flag Assembly Removal Paper Feed Motor 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 Carrier Assembly Removal Printhead Rubber Backer RemovalRight Side Frame Assembly Removal Rear Cover RemovalSystem Board Removal Small Feed Roll Shaft, Rollers & Paper Flap RemovalStar Roller Removal Connector Locations System Board Connectors Encoder Card Connector Connector Connector NamesPreventive Maintenance Lubrication SpecificationsParts 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 Index Post4090-001

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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