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FM4 Letter Fold-in
In Fold Method 4 (FM4):
• The leading edge of the paper is stopped by Fold Stopper 1.
• The paper flexes toward the nip of fold rollers
¬
and
Á
which performs the first fold.
• Fold Stopper 2 stops the paper and flexes it into the nip of fold rollers
Á
and
®
.
• Fold rollers
Á
and
®
perform the second crease and feed the folded paper in exit path.
• Fold Stopper 3 is not used.
FM3 and FM4 follow the same sequence but the resultant fold is different:
• In FM3 Fold Stopper 1 is positioned high so a short length of paper is allowed to feed before flexing
toward the nip starts.
• In FM4 Fold Stopper 1 is positioned low so a long length of paper is allowed to feed before flexing
toward the hip starts.
• This positioning of Fold Stopper 1 accounts for the difference in folding at the next nip.
Paper Folding
139
2
Summary of Contents for D454-17
Page 1: ...Multi Folding Unit FD5000 Machine Code D454 17 January 2009 ...
Page 2: ......
Page 32: ...4 Registration roller transport motor A x 2 1 Replacement and Adjustment 30 1 ...
Page 54: ...4 Bypass exit paper sensor A x 1 1 Replacement and Adjustment 52 1 ...
Page 111: ...Skew Adjustment 109 1 ...
Page 118: ...1 Replacement and Adjustment 116 1 ...
Page 129: ...Junction Gates Paper Path 127 2 ...
Page 148: ...Electrical Components Transport Sensors 2 Details 146 2 ...
Page 149: ...Operation Sensors Electrical Components 147 2 ...
Page 150: ...Motors Solenoids 2 Details 148 2 ...