Fujitsu F53 Bill Dispenser: Crooked Dispensing... | terminalfaults.org

Technical Background:

The Fujitsu F53 uses a series of belts and rollers driven by 24V DC motors to transport bills. Optical sensors detect bill presence and position. Logic board controls motor speed and direction based on sensor feedback. Crooked dispensing indicates uneven belt speeds, obstructions, or sensor misalignment. Environmental factors, such as temperature (-40C compliance), can affect belt elasticity and sensor accuracy. Vandalism (attempted obstruction) can bend path guides.

Symptoms:

The Fujitsu F53 dispenses bills at an angle, causing them to be crooked upon presentation to the user. This may result in jams or failed transactions.

Possible Causes:

Uneven belt tension on the transport belts.
Accumulation of debris (dust, dirt, or small objects) on the belts or rollers.
Misalignment of the bill guiding mechanisms.
Wear or damage to the transport belts, reducing friction.
Malfunctioning or dirty optical sensors providing incorrect positional data.
Extreme temperature affecting the elasticity of the belts and the responsiveness of the sensors.

Solution:

1

Visually inspect the bill path for any obstructions or foreign objects.
2

Clean the transport belts and rollers with a lint-free cloth dampened with isopropyl alcohol. Ensure the device is powered off during cleaning.
3

Check the tension of the transport belts. The belts should be taut but not overly stretched. Consult the F53 service manual for specific tension guidelines.
4

Inspect the optical sensors for dirt or damage. Clean the sensors with compressed air. Do not use liquids.
5

Power cycle the F53 and observe its operation. Check if the crooked dispensing persists.
6

Review the F53 error logs for any relevant error codes related to dispensing or sensor issues. Consult the service manual for error code descriptions.
7

If the issue persists, consider recalibrating the bill dispensing mechanism according to the Fujitsu F53 service manual.

Safety Warning:

This device operates on 24V DC. Prior to any cleaning or inspection, disconnect the power supply. Failure to do so could result in electrical shock or damage to the equipment. Follow Lockout/Tagout (LOTO) procedures to ensure the device remains de-energized during maintenance. Be aware of sharp edges or pinch points within the bill dispensing mechanism. Wear appropriate personal protective equipment, such as gloves and safety glasses.

Prevention:

Regularly clean the bill path and transport belts. Implement a scheduled maintenance program to check belt tension and sensor functionality. Ensure the kiosk environment is free from excessive dust and debris. Consider using a filtered air intake to reduce particle accumulation.

Expert Tip:

Often, repeated minor jams cause a buildup of adhesive residue on the bill transport belts. Isopropyl alcohol is effective, but requires several passes. Consider using a specialized rubber cleaner designed for printer rollers, but ensure compatibility with the belt material. Prior to powering down and cleaning, run several 'dry cycles' of the bill dispenser (without bills) to see if this dislodges the obstruction.

Frequently Asked Questions

•What are the recommended belt tension specifications for the Fujitsu F53?

Refer to the Fujitsu F53 service manual for detailed belt tension specifications. These specifications may vary depending on the specific model and configuration.

•What type of cleaning solution is safe to use on the optical sensors?

Compressed air is the safest option for cleaning optical sensors. Avoid using liquids or abrasive materials that could damage the sensor surface.

•Where can I find the Fujitsu F53 service manual and error code documentation?

The Fujitsu F53 service manual and error code documentation are typically available through Fujitsu's authorized service partners or technical support channels.

Fujitsu F53 Bill Dispenser: Crooked Dispensing Diagnostic

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What are the recommended belt tension specifications for the Fujitsu F53?

•What type of cleaning solution is safe to use on the optical sensors?

•Where can I find the Fujitsu F53 service manual and error code documentation?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: