TSP143III Intermittent Error Diagnostic Report - Solar... | terminalfaults.org

Technical Background:

Intermittent errors in the TSP143III can stem from signal degradation due to cable strain, electrostatic discharge (ESD), or voltage fluctuations. Data transmission relies on stable voltage levels and timing signals. External factors can induce voltage dips, signal attenuation, or corruption of the data stream. Print quality degradation can also result from thermal issues affecting the print head resistance and thus impacting consistent thermal transfer. The RS-232 or USB interface is sensitive to voltage variations and ground loop interference.

Symptoms:

Observed intermittent printing failures on the Star Micronics TSP143III. These errors manifest as incomplete prints, garbled characters, or a complete cessation of printing during operation.

Possible Causes:

Cable Strain: Excessive bending or pulling on the USB or serial cable leading to intermittent disconnections or signal degradation.
Electrostatic Discharge (ESD): Static electricity buildup, especially in dry environments, can disrupt the printer's electronics, causing temporary malfunctions.
Power Supply Instability: Fluctuations in the power supply voltage can lead to inconsistent performance.
Loose Cable Connections: Poorly seated or partially detached cables can cause intermittent communication failures.
EMI (Electromagnetic Interference): Interference from nearby electronic devices can corrupt the data signal to the printer.

Solution:

1

Safe Handling: Disconnect the TSP143III from the power source and all connected devices.
2

Cable inspection: Visually inspect the USB/Serial cable for any signs of damage, such as kinks, cuts, or frayed wires. Replace if necessary.
3

Re-Seat Cables: Firmly re-seat all cable connections (USB/Serial and power) at both the printer and the host device (e.g., computer, terminal).
4

Test with a Different Cable: Use a known-good USB or Serial cable to rule out a faulty cable as the source of the problem.
5

Power Cycle: Reconnect the power cable and turn the printer back on. Allow it to initialize completely before attempting to print.
6

Grounding Check: Ensure proper grounding of the printer and connected devices to minimize ESD effects.
7

Environment Scan: Identify and relocate any potential sources of EMI away from the printer (e.g., cell phones, radios, power adapters).

Safety Warning:

Ensure the printer is disconnected from the power source before performing any inspection or maintenance. Avoid operating the printer in environments with high humidity or near liquids. Electrostatic discharge (ESD) can damage the printer's internal components. Handle cables with care to prevent damage. Never attempt to open the printer casing as this will void the warranty and could damage sensitive internal components.

Prevention:

Implement cable strain relief measures to prevent excessive bending or pulling on the cables. Use cable ties or clamps to secure the cables.,Regularly clean the printer exterior with a dry, lint-free cloth to remove dust and prevent static buildup.,Avoid placing the printer near sources of strong electromagnetic interference (EMI).,Ensure stable power supply and consider using a surge protector.,Perform routine visual inspections of cables and connections.

Expert Tip:

Try connecting the TSP143III to a different USB port on the host device. Some USB ports may provide more stable power or have better shielding against interference. Alternatively, try a USB isolator to break any ground loops causing the intermittent issues. A ferrite choke on the USB cable can also reduce external EMI.

Frequently Asked Questions

•Is the printer connected directly to the computer or through a USB hub?

Connecting through a USB hub can sometimes cause power or data issues. Try connecting the printer directly to the computer.

•Have there been any recent changes to the printer's settings or drivers?

Incompatible or outdated drivers can cause printing errors. Check for driver updates on the Star Micronics website.

•Does the problem occur with all types of print jobs?

If the problem only occurs with specific types of print jobs, the issue may be related to the application or the data being printed.

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•Is the printer connected directly to the computer or through a USB hub?

•Have there been any recent changes to the printer's settings or drivers?

•Does the problem occur with all types of print jobs?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: