Fujitsu F53 Bill Dispenser: Creased Bill Diagnostic -... | terminalfaults.org

Technical Background:

The Fujitsu F53 uses a 24V DC motor system to drive a series of rollers that transport bills. Optical sensors detect bill presence and position. The bill path is calibrated for specific bill polymer and dimensions. Creasing suggests uneven roller pressure or obstruction in the bill path affecting signal attenuation to the optical sensors.

Symptoms:

Bills are dispensed with creases from the Fujitsu F53 bill dispenser. This indicates a mechanical fault in the bill transport path.

Possible Causes:

Roller pressure miscalibration or wear leading to uneven bill transport.
Contamination (dust, debris) on the rollers reducing grip and causing slippage.
Obstruction in the bill path causing bills to bunch and crease.
Environmental factors (temperature fluctuations) affecting roller polymer flexibility and grip.
Bill stack irregularities leading to feeding issues.
Sensor misalignment causing incorrect bill transport timing.

Solution:

1

Power cycle the Fujitsu F53 bill dispenser. Observe the initial bill dispensing process for any abnormal noises or movements.
2

Inspect the bill dispensing area for any visible obstructions. Use compressed air to remove any loose debris.
3

Clean the accessible roller surfaces with a lint-free cloth dampened with isopropyl alcohol. Ensure rollers are completely dry before testing.
4

Check the bill stack alignment within the dispenser. Ensure bills are stacked evenly and are not overfilled.
5

Conduct a bill dispensing test with a small stack of new, uncreased bills to rule out pre-existing bill damage.
6

Review the error logs of the host system for any fault codes related to the bill dispenser.
7

If issue persists, contact Fujitsu technical support for further diagnostics and potential hardware calibration.

Safety Warning:

This kiosk operates with mains voltage. Always disconnect the power supply before performing any maintenance or inspection. High voltage risk. Follow Lockout/Tagout (LOTO) procedures before any invasive intervention.

Prevention:

Implement a regular cleaning schedule for the bill dispenser. Use compressed air and a lint-free cloth to remove dust and debris from the bill path and rollers. Ensure proper bill stack alignment during refills. Monitor environmental conditions, particularly temperature extremes, that may affect roller performance.

Expert Tip:

Use a dedicated bill cleaning card designed for bill validators. These cards contain a textured surface that can effectively remove debris from rollers without disassembly. Check the optical sensors for physical damage or misalignment using a borescope.

Frequently Asked Questions

•What type of cleaning solution is recommended for the F53 rollers?

Isopropyl alcohol (90% or higher) is recommended. Ensure rollers are completely dry before operation.

•How often should the F53 be cleaned in a high-traffic environment?

In high-traffic environments, cleaning should be performed at least weekly. Increase frequency if creased bills are observed.

•Are there any firmware updates available for the F53 that address bill dispensing issues?

Consult the Fujitsu support website or technical documentation for the latest firmware updates and release notes.

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What type of cleaning solution is recommended for the F53 rollers?

•How often should the F53 be cleaned in a high-traffic environment?

•Are there any firmware updates available for the F53 that address bill dispensing issues?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: