Citizen CL-S621: Troubleshooting Pause Error During... | terminalfaults.org

Technical Background:

The 'pause error' typically indicates a disruption in the data stream, a sensor malfunction, or a timing issue. The printer's firmware monitors the print head position and label feed rate. A discrepancy between expected and actual values triggers the error. Electrostatic discharge (ESD) in dry environments can also corrupt data transmission. Incorrect baud rate settings or faulty cable connections can also cause data errors.

Symptoms:

The Citizen CL-S621 printer stops printing labels mid-print and displays a 'pause error'. This occurs intermittently during normal operation.

Possible Causes:

Label sensor malfunction or contamination, preventing accurate label detection.
Data transmission errors due to faulty USB or serial cable connection.
Incorrect printer driver settings or corrupted driver system.
Electrostatic discharge (ESD) affecting the printer's control board or data transmission.
Print head overheating, triggering a pause as a safety mechanism.
Firmware incompatibility with the label stock being used.

Solution:

1

Power cycle the printer. Turn off the printer, wait 30 seconds, and turn it back on.
2

Inspect the label sensor. Clean the sensor area with a dry, lint-free cloth. Ensure there are no obstructions.
3

Verify the data cable connection. Ensure the USB or serial cable is securely connected to both the printer and the host device. Try a different cable to rule out cable faults.
4

Check printer driver settings. Confirm the correct driver is installed and that the label size and type are properly configured in the driver settings.
5

Reduce print density. High print density can cause overheating. Lowering the print density in the driver settings may resolve the issue.
6

Update Printer Firmware. Visit the Citizen support website and download the latest firmware for the CL-S621. Follow the instructions provided to perform the firmware update. Ensure the system is plugged into a stable power source during the update.
7

Test with different label stock. Try using a different type of label stock to rule out compatibility issues. Ensure the label stock meets the printer's specifications.

Safety Warning:

Do not open the printer casing. Opening the casing can damage the printer and void the warranty. Always unplug the printer from the power outlet before performing any maintenance or cleaning. Use caution when handling electronic components to avoid electrostatic discharge (ESD). Safe Handling: Unplug the printer before inspection.

Prevention:

Regularly clean the printer's label sensor and print head. Ensure proper cable management to prevent strain on the data cables. Use a surge protector to protect the printer from power fluctuations. Maintain a humidity level above 40% to reduce the risk of ESD during dry winter months.

Expert Tip:

Try running a self-test print. Hold down the feed button while powering on the printer. This will print a test label and may reveal underlying hardware problems. If the self-test fails, it may indicate a more serious hardware issue.

Frequently Asked Questions

•What type of label stock are you using?

The type of label stock can impact printer performance. Different materials absorb heat differently.

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

Network connections can introduce latency and data transmission errors.

•Have you recently updated the printer driver or operating system?

Software changes can sometimes cause compatibility issues.

Citizen CL-S621: Troubleshooting Pause Error During Printing

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What type of label stock are you using?

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

•Have you recently updated the printer driver or operating system?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: