- Hewlett-Packard Digital Sender Service Manual

Display test
Follow these instructions to test the functionality of the control-panel display.
1. Touch Administration, touch Troubleshooting, and then touch Control Panel.
2. Touch Display. The display test shows test patterns on the control-panel display.
Buttons test
Follow these instructions to test the functionality of the control-panel buttons.
1. Touch Administration, touch Troubleshooting, and then touch Control Panel.
2. Touch Buttons. The buttons test directs you to press each control-panel button to test its
functionality.
Touchscreen test
Follow these instructions to test the functionality of the control-panel touchscreen.
1. Touch Administration, touch Troubleshooting, and then touch Control Panel.
2. Touch Touchscreen. The touchscreen test divides the screen into a grid and then asks you to touch
each section of the grid to test its functionality.
ENWW Diagnostic tools 147