Fujitsu fi-4750C Operator's Manual page 19

Counter Display
The scanner is provided with a counter display.
Counter
Paper counter
Abrasion counter
NOTICE
When the counter value is 0, no number is displayed.
Function
When the The paper counter counts the number of scanned sheets
button is pressed from the start of reading until Paper Empty or an error is
detected. The counter is automatically reset at the start
of reading. The counter is used for checking the
number of the sheets scanned in one batch.
When the This counter increments each time a document is
button is pressed scanned. It is not initialized until the power is turned off.
The counter can be used, for example, for checking the
number of sheets that have been scanned in one day.
The abrasion counter counts the accumulated number of scanned sheets.
This counter increments every 10 sheets. It is useful to check the cleaning
cycle or the parts replacement cycle. How to reset it is described in Chapter
6.
Paper counter
Abrasion counter
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