Cylinder scanner

A cylinder scanner, comprising:

• a base, two opposite ends of the base protruding beyond a middle of an upper surface of the base to form two flanges;
• a contact image sensor module mounted on the middle of the upper surface of the base for scanning a cylinder which is placed to the middle of the upper surface of the base;
• a first roller unit slidably disposed above the middle of the upper surface of the base, the first roller unit being slidably mounted between two facing surfaces of the two flanges along a transverse direction;
• a second roller unit slidably disposed above the middle of the upper surface of the base, the second roller unit being slidably mounted between the two facing surfaces of the two flanges along the transverse direction;
• and an adjusting mechanism interconnected the first roller unit and the second roller unit to adjust a distance between the first roller unit and the second roller unit along the transverse direction, a vertical distance between the cylinder and the contact image sensor module being adjusted by adjusting the distance between the first roller unit and the second roller unit along the transverse direction, so the cylinder being positioned on a top surface of the contact image sensor module, wherein when the cylinder is scanned, the first roller unit and the second roller unit rotate in the same direction, the cylinder is positioned on the first roller unit and the second roller unit, so the cylinder is driven by the first roller unit and the second roller unit to rotate.

A cylinder scanner, comprising:

• a base, two opposite ends of the base protruding beyond a middle of an upper surface of the base to form two flanges;
• a contact image sensor module mounted on the middle of the upper surface of the base for scanning a cylinder which is placed to the middle of the upper surface of the base;
• a first roller unit slidably disposed above the middle of the upper surface of the base, the first roller unit being slidably mounted between two facing surfaces of the two flanges along a transverse direction;
• a second roller unit slidably disposed above the middle of the upper surface of the base, the second roller unit being slidably mounted between the two facing surfaces of the two flanges along the transverse direction;
• an adjusting mechanism interconnected the first roller unit and the second roller unit to adjust a distance between the first roller unit and the second roller unit along the transverse direction, a vertical distance between the cylinder and the contact image sensor module being adjusted by adjusting the distance between the first roller unit and the second roller unit along the transverse direction, so the cylinder being positioned on a top surface of the contact image sensor module;
• and an observation hole longitudinally penetrating through one of the flanges for detecting whether the cylinder abuts against the top surface of the contact image sensor module, wherein when the cylinder is scanned, the first roller unit and the second roller unit rotate in the same direction, the cylinder is positioned on the first roller unit and the second roller unit, so the cylinder is driven by the first roller unit and the second roller unit to rotate.