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Hardness of surface to print
Hardness of surface to print Vickers hardness (HV) of 200 or less
Materials which may crack or split by printing (such as glass, stone, precious stones, china, and porcelain)
cannot be printed even if hardness is within the preceding range.
Attempting to print such materials may damage the machine.
Vickers hardness (HV) is used as a yardstick to represents the hardness of industrial materials. For the infor-
mation on the hardness of the instrument to be imprinted, please contact the shop where you bought the
instrument or its manufacturer.
Surface form
The instrument must not have the surface form described below.
The surface to be imprinted is uneven, and the surface comes into contact with the moving
part of the machine when material is set or when printing is made.
Conditions for Material When Printing Curved Surfaces
The table and figure below show the printing-assured area and the area reached by the marking pin with
respect to the diameter of the cylinder. Note, however, that the following conditions are assumed.
The head cap is used.
The material has circularity.
Diameter of cylindrical material
10 mm (0.3 in.)
20 mm (0.7 in.)
30 mm (1.1 in.)
Note : For printing on curved surfaces, regardless of the shape or composition of the material, the image
quality of photographic data cannot be assured. For printing on curved surfaces, regardless of the shape or
composition of the material, the image quality of photographic data cannot be assured.
Recommended printable
area (A)
2.0 mm (0.079 in.)
2.8 mm (0.11 in.)
3.4 mm (0.14 in.)
2-1 Preparing for Printing
Area reached by the
marking pin (B)
2.8 mm (0.11in.)
4.0 mm (0.16 in.)
4.8 mm (0.19 in.)
Chapter 2 Printing
29
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