Ricoh SP 8400DN Field Service Manual page 1785

3.System Maintenance
When the check is completed, press [Back] to return to the top menu of [Self Check].
TouchPanel Check
For each of the nine reference points on the screen, the distance between the detected position and the nearest
reference point is displayed.
When the check is completed, press [Back] to return to the top menu of [Self Check].
TouchPanel Calibration
Calibrate the touch panel by touching the center of each of the five "+" signs.
The five "+" signs are displayed in the order of top left, bottom right, bottom left, center, and top right.
After you have touched the five "+" signs, the display switches to the [Retry/OK] screen.
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If you want to calibrate again, press [EX1].
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If you want to confirm that the calibration results are OK, press the [EX3] key to return to the top menu of
[Self Check].
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