Tiba SW-30: Short Ticket Dispensing Diagnostic Report -... | terminalfaults.org

Technical Background:

The Tiba SW-30 utilizes a stepper motor controlled by a 24V DC logic circuit to advance the ticket stock. A photoelectric sensor detects perforation marks on the ticket stock to determine the correct length. Communication is typically via RS-232 with baud rates ranging from 9600 to 115200. Signal attenuation in the communication cable can lead to errors. Environmental factors such as extreme cold (-40C) can affect the viscosity of lubricants in the mechanical drive system, increasing motor load and potentially affecting stepper motor accuracy.

Symptoms:

Tickets dispensed by the Tiba SW-30 are consistently shorter than the configured length.

Possible Causes:

Faulty photoelectric sensor failing to accurately detect perforation marks.
Stepper motor malfunction, resulting in inconsistent ticket advance.
Incorrect ticket length configuration within the printer's firmware.
Low voltage (below 24V DC) supply to the printer, affecting motor torque.
Worn or contaminated platen roller affecting ticket feed.
Communication errors between the kiosk controller and the printer.

Solution:

1

Verify the printer is receiving the correct 24V DC power supply. Use a multimeter to check the voltage at the printer's power input.
2

Inspect the photoelectric sensor for dirt or damage. Clean the sensor lens with a dry, lint-free cloth.
3

Review the printer's configuration settings to ensure the correct ticket length is programmed. Consult the Tiba SW-30 manual for instructions.
4

Resend the print job, ensuring data transmission is complete and error-free. Check serial cable connection.
5

Perform a printer self-test to check the internal functionality of the printer, including the sensor and stepper motor.
6

Clean the platen roller with isopropyl alcohol to remove any buildup that may be affecting ticket feed.
7

Update the printer firmware to the latest version available from Tiba's website.

Safety Warning:

The Tiba SW-30 operates on 24V DC power. Ensure the power supply is disconnected before performing any maintenance. Avoid contact with electronic components while the printer is powered on. In a commercial kiosk environment, ensure the area around the printer is clear of obstructions and potential tripping hazards. Protect the printer from exposure to extreme temperatures and moisture.

Prevention:

Regularly clean the photoelectric sensor and platen roller. Ensure the printer is supplied with stable 24V DC power. Check the serial communication cable for secure connections and replace if damaged. Implement strain relief on all external cables. Perform regular printer self-tests to monitor printer health.

Expert Tip:

Some Tiba SW-30 models have a hidden diagnostic menu accessible through a specific button combination during power-up. Consult the service manual or Tiba support for the correct key sequence for your specific model. Consider adding a ferrite choke to the serial communication cable to minimize signal interference, especially in environments with high electromagnetic noise.

Frequently Asked Questions

•What is the recommended cleaning frequency for the photoelectric sensor?

Clean the photoelectric sensor monthly or more frequently in dusty environments.

•Where can I download the latest firmware for the Tiba SW-30?

The latest firmware can be downloaded from the official Tiba website or through their authorized service partners.

•What are the expected resistance values across the stepper motor windings?

Refer to the Tiba SW-30 service manual for the exact stepper motor winding resistance specifications. This information is critical for diagnosing motor faults.

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the recommended cleaning frequency for the photoelectric sensor?

•Where can I download the latest firmware for the Tiba SW-30?

•What are the expected resistance values across the stepper motor windings?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: