HP 280 G2 Maintenance And Service Manual page 85

Cursor will not move using the
Cause
The Num Lock key is on.
Mouse does not respond to movement or is too slow.
Cause
Mouse connector is not properly plugged into the back of the
computer.
Program in use has stopped responding to commands.
Mouse may need cleaning.
Mouse may need repair.
Computer is in Sleep state.
Mouse will only move vertically, horizontally, or movement is jerky.
Cause
Mouse roller ball or the rotating encoder shafts that make contact
with the ball are dirty.
arrow keys on the keypad.
Solution
Press the Num Lock key. The Num Lock light should be off if you
want to use the arrow keys on the keypad. You can disable or
enable the Num Lock key in Computer Setup at Advanced >
Device Options.
Solution
Shut down the computer using the keyboard.
Windows 7:
1. Press the Ctrl and Esc keys at the same time (or press the
Windows logo key) to display the Start menu.
2. Use the arrow keys to select Shut Down and then press
Enter.
3. After the shutdown is complete, plug the mouse connector
into the back of the computer (or the keyboard) and restart.
Windows 10:
1. Press the Ctrl and Esc keys at the same time (or press the
Windows logo key) to display the Start menu.
2. Use the arrow keys to scroll to and select the power icon at
the top right on the menu, and then press Enter.
3. Use the arrow keys to select Shut Down, and then press
Enter.
4. After the shutdown is complete, plug the mouse connector
into the back of the computer (or the keyboard) and restart.
Shut down the computer using the keyboard then restart the
computer.
Remove the roller ball cover on the mouse and clean the internal
components.
See the Worldwide Limited Warranty for terms and conditions.
Press the power button to resume from Sleep state.
CAUTION: When attempting to resume from Sleep state, do not
hold down the power button for more than four seconds.
Otherwise, the computer will shut down and you will lose any
unsaved data.
Solution
Remove roller ball cover from the bottom of the mouse and clean
the internal components with a mouse cleaning kit available from
most computer stores.
Solving keyboard and mouse problems 77