Xerox 2750 Benutzerhandbuch

2750 op#3 R3.doc  10-02 

Page 3-2 

 

2

B

A

 

 
 
At the start of the process the drum turns counter-clockwise [1], taking the document through the lower 
fold roll, then stopping at the point [2], where the distance between the leading edge of the document (A) 
and the upper fold roll (B) equals the accordion panel width chosen by the operator. At this point the drum 
reverses [3]. 
 
 

A

B

C

3

 

 
 
The loop (C) caused by the in-feed rolls and drum driving in opposite directions expands to the point 
where it is trapped by the upper fold roll, thus making the first fold. 
 
 

4

B

C

A

 

 
 

[2]  Panel measuring phase 
A measured length of the document is taken up by the 
folding drum.

 

[3]  Drum reversal develops a loop 
The document continues to be advanced by the in-feed 
rolls at the same time as it is being driven backward by 
the drum

 

[4]  Completion of the first fold 
Pressure of the fold roll on the drum makes a sharp 
crease at point C.