Loading Cover Sheets into the Perfect Binder Interposer
This section describes how to load cover sheets into the perfect binder interposer.
Estimating the thickness of a booklet's spine (Back edge)
This section explains how to calculate approximate spine thickness and cover sheet length/size.
Note that the length/size of a cover sheet depends on the thickness of the book block's spine.
The following list shows examples for A4 size or Letter (8
paper:
• 10-sheet book block: 1 mm (0.04 inches)
• 30-sheet book block: 3 mm (0.12 inches)
• 50-sheet book block: 5 mm (0.20 inches)
• 80-sheet book block: 8 mm (0.32 inches)
• 100-sheet book block: 10 mm (0.40 inches)
• 200-sheet book block: 20 mm (0.80 inches)
Specify the cover sheet size based on the thickness of the book block's spine. Use the following equation
to calculate the length of the cover sheet:
Minimum length of cover sheet (mm/in) = "length of book block sheet (mm/in)" × 2 + "thickness of spine
(mm/in)"
To perfect bind a booklet of the following dimensions, specify a cover sheet length of 440 mm (17.4 inches)
or longer:
• 200-sheet book block: A4 or Letter (8
• Spine thickness: 20 mm (0.8 inches)
1
/
× 11), 80 g/m
2
1
/
× 11)
2
BQX115S
Loading Paper
2
(20 lb. Bond) (10-micron)
3
97