When you press buttons or keys on the touchscreen panel, the device tends to show a

different area

,

key

, or

button

than the one you selected, one that is

above

the actual area pressed. Alternatively, it can appear that the button is being pressed but nothing is selected. This latter issue happens for buttons such as "

Home

" and "

Submit

", where there is not another button immediately above.

NOTE:

This calibration issue is

less

severe as you go to the top of the control panel.

See sample video below.

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A

sagging

touch screen can cause this panel calibration issue, which can occur if the foam spacer between the touch screen and the LCD becomes too loose. Thus, when you touch a portion of the touch screen, you actually interact with the area corresponding to the LCD point above the one you touched.

To determine whether the panel calibration issue is caused by a

sagging

touch screen, put your finger on the middle of the touch screen. Press and hold the screen, then slowly move the screen physically up and down. If the touch screen moves then the

Operator Panel Assembly

needs to be replaced. Please contact

Lexmark Technical Support

or a local authorized service provider for additional assistance.

NOTE:

If the panel calibration issue is

not

caused by a

sagging

touch screen, please proceed with the

Recommended Solution

below.

Update the printer’s firmware to

EC4

or the

latest

.

LEGACY ID:

TE599

NOTE:

This escalation item number is provided for investigative purposes. To view this item, you will need at least

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