UI Touch Unusual Behavior
- Product support for
- AltaLink C8130 / C8135 / C8145 / C8155 / C8170 Color Multifunction Printer
- Article ID
- KB0427129
- Published
- 2025-03-19
Issue
The UI touch behavior is exhibiting abnormal and seemingly random issues, including:
Inconsistent scrolling with one finger
The screen may zoom in or make unintended selections even when your finger is not lifted.
Delayed responses, requiring a prolonged press for a selection to register.
Cause
The UI panel performs self-calibration during the powering on or waking from sleep. If the UI touchscreen is pressed during this auto-calibration, it can lead to impacted calibration and undesired touch behaviors.
Resolution
Press the Power Button and Select Sleep.
Note: If unable to select sleep
Hold the power button until the device powers off.
After the device has powered off, power the device on.
Do not touch the screen while the device is powering on.
Wake the Device by Either
Pressing the power button on the control panel
Activating the proximity sensor by walking in front of it.
Important: Do not press the UI touchscreen while the device is waking from sleep mode.
3. If the Issue Remains after performing the above Contact Support for Further assistance.