Ricoh 70eI92 User Manual
C-2
Paper Specifications
Paper Specifications
Characteristics
Recommendation
Paper Grade
No. 1 or No. 4 Xerographic (Note 1)
Fiber Composition
100% chemical wood pulp
Color
White or pastel color
Ash Content
18% maximum (Notes 2 and 4)
Filler
Kaolin or china clay (aluminosilicate) or calcium carbonate. Tita-
nium dioxide or magnesium silicate may be added to improve
brightness.
nium dioxide or magnesium silicate may be added to improve
brightness.
Grain Direction
Parallel to the long dimension (grain long)
CaCO
3
Content
0% (Paper that contains CaCO
3
can drastically reduce fuser life.)
Cutting Method
Rotary precision cut (Lennox, Will, or equivalent)
Cutting Tolerance
Length and width: ± 0.787 mm (± 0.031 in.)
Squareness: all corners 90° ± 0° 6
Squareness: all corners 90° ± 0° 6
′
Basis Weight
16 to 110 lb. (60
to 199 g/m
2
) (See Notes 3 and 4)
Caliper
16 to 19 lb. (60 to 72 g/m
2
): 3.5 to 5.0 mils (90 to 127 µ
m)
20 to 24 lb. (75 to 90 g/m
2
): 3.2 to 4.0 mils (81 to 102 µ
m)
Smoothness (Sheffield)
16 to 19 lb. (60 to 72 g/m
2
): 70 to 170 Sheffield units
20 to 24 lb. (75 to 90 g/m
2
): 100 to 200 Sheffield units
Porosity (Gurley)
10 sec./100 ml minimum
Coefficient of Static Friction
0.35 to 0.62 (Notes 3 and 5)
Surface Sizing
Starch - Do not use synthetic surface sizing
Internal Sizing
Acid Rosin or synthetic
(alkylketene dimer or alkyl-succinic anhydride)
(alkylketene dimer or alkyl-succinic anhydride)
Stiffness (Taber)
16 to 19 lb. (60 to 72 g/m
2
): MD 1.4 min./CD: 0.5 min.
20 to 24 lb. (75 to 90 g/m
2
): MD 1.7 to 4.5 min./CD: 0.8 to 2.4
min.
Moisture Content
3.7% to 5.5% by weight (Notes 3 and 4)
Surface Resistivity
5 x 10
9
to 1 x 10
12
ohms (Notes 3 and 6)
NOTES
:
1. The No. 1 or No. 4 designation applies only in the U.S.
2. Testing method - Technical Association of the Pulp and Paper Industry (TAPPI).
3. Testing method - American Society for Testing and Materials (ASTM).
4. Testing method - International Organization for Standardization (ISO).
5. Use 127 mm/min (5.0 in./min.) pull rate.
6. Isolate the test specimen from the metal backing plate with a piece of smooth,
2. Testing method - Technical Association of the Pulp and Paper Industry (TAPPI).
3. Testing method - American Society for Testing and Materials (ASTM).
4. Testing method - International Organization for Standardization (ISO).
5. Use 127 mm/min (5.0 in./min.) pull rate.
6. Isolate the test specimen from the metal backing plate with a piece of smooth,
nonconductive polyester film, at least 0.254 mm (0.010 in.) thick; use 100 volts.