Clover Printer: Upside Down Print After App Crash... | terminalfaults.org

Technical Background:

Printer orientation is typically controlled by software settings within the application or the printer driver. An application crash can corrupt temporary configuration files or interrupt the printing process, leading to misinterpretation of print commands. EMV terminal printers utilize firmware to render outputs; corrupted firmware can lead to inverted output. Voltage fluctuations during the crash might temporarily affect the printer's logic board. Serial communication baud rate mismatch can cause garbled or inverted output.

Symptoms:

Printer output is inverted (printed upside down) following a crash of the Scotiabank application. This occurs in a Clover point-of-sale (POS) system in a retail environment.

Possible Causes:

Corrupted print settings file caused by the application crash.
Software bug within the Scotiabank application or the Clover printer driver.
Interrupted communication between the Clover device and the printer during data transfer.
Temporary firmware glitch within the printer's logic board.
Voltage drop or power surge during the app crash affecting printer memory.
Incompatible or outdated printer driver version.

Solution:

1

Restart the Clover device and the printer. Power cycle both units completely.
2

Check the printer settings within the Clover device's settings menu for any orientation options. Verify correct orientation selection.
3

Update the Scotiabank application to the latest version available in the Clover App Market.
4

Update the Clover printer driver. Check for updates within the Clover device's settings or the Clover App Market.
5

Clear the printer's cache and temporary files through the Clover device settings.
6

Perform a printer self-test to verify basic printing functionality and hardware integrity.
7

As a last resort, consider performing a factory reset of the printer, if the option is available and all other options have failed. Note: This will erase all custom configurations.

Safety Warning:

Safe Handling: Unplug the power adapter of the Clover printer before any physical inspection or cable management. Avoid touching the printer's internal components. ESD (Electrostatic Discharge) can damage electronic components; ground yourself before touching any connectors, especially in dry environments. Ensure the power cable and data cables are free from strain and not creating a tripping hazard.

Prevention:

Ensure the Clover device and printer are connected to a stable power source. Regularly update all applications and printer drivers to the latest versions. Schedule periodic restarts of the Clover device to clear temporary files and prevent performance issues. Avoid overloading the Clover device with too many concurrently running applications.

Expert Tip:

Try printing a test receipt directly from the Clover device's settings menu (not from within the crashed application). If the test receipt prints correctly, the issue is likely within the application and not the printer hardware itself. A full system reboot (both terminal and printer) often resolves transient software glitches.

Frequently Asked Questions

•Is the printer connected directly to the Clover device, or through a network?

Direct connection is more reliable for troubleshooting. Network printing adds complexity.

•What version of the Scotiabank app and Clover OS are you using?

Knowing the software versions helps identify known bugs or compatibility issues.

•Does the upside-down printing occur with other applications, or only the Scotiabank app?

Isolates the issue to a specific application or a system-wide problem.

Clover Printer: Upside Down Print After App Crash Diagnostic

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•Is the printer connected directly to the Clover device, or through a network?

•What version of the Scotiabank app and Clover OS are you using?

•Does the upside-down printing occur with other applications, or only the Scotiabank app?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: