IBM MX5 - Manual (Page 21)

Cleaning the Glass Display/Scanner Aperture
Note: These instructions are for components made of glass. If there is a
removable protective film sheet on the display screen, remove the film
sheet before cleaning the screen.
Keep fingers and rough or sharp objects away from the scan aperture and touch
display. If the glass becomes soiled or smudged, clean only with a standard
household cleaner such as Windex(R) without vinegar or use Isopropyl Alcohol.
Do not use paper towels or harsh-chemical-based cleaning fluids since they may
result in damage to the glass surface. Use a clean, damp, lint-free cloth. Do not
scrub optical surfaces. If possible, clean only those areas which are soiled.
Lint/particulates can be removed with clean, filtered canned air.
Programmable Buttons
The Scan buttons can be programmed by the System Administrator to perform
the following functions:
Disabled
Key press has no effect.
Scan Pressing this key activates the laser scanner.
Enter Pressing this key confirms a forms entry or transmits information.
See the following section titled "Enter Key Function."
Tab Pressing this key moves the cursor to the next input field.
Field Exit IBM 5250/TN5250 units only. Pressing this key exits an input field.
See the following section titled "Field Exit Key Function."
Esc Pressing this key cancels the current operation.
Program the Scan Buttons
Access: the Windows icon | Settings | System tab | Scanner | Key tab
Tap the desired radio button. Tap OK to close this menu option. Tap X to cancel
changes. Any changes made are in effect immediately.
The default setting for the right button is Enter. The default setting for the left
button is Enter.
When the MX5 does
not have an integrated scanner, both buttons default to
Enter keys and the Scan selection is greyed out. The buttons can be
programmed to perform other functions when there is no internal scanner.