Torus 126, 380 and 500
Operator Manual
4-14 How to Get High Quality Print
Rev AB
How to Get High Quality Print
To get high quality print, make sure to move the products past the
printhead in a consistent method. For correct conveyor movement, refer to
the following guidelines:
• A high grip and flat belt conveyor with pack guidance is
recommended.
• Make sure that there is enough space between the products to get
correct print signals. This action prevents the products from not being
printed.
• Gravity roller conveyors are not recommended. The box speed and
spacing can change according to the product speed and weight.
• Powered roller conveyors can decrease the print quality. This type of
roller is not recommended for barcodes or high resolution graphic
applications.
• If the barcodes are required in the image, then an encoder must
measure accurately the speed of the product. This accuracy in the
speed measurement leads to best print performance.
The maximum and minimum conveyor speeds for Torus 126/380/500 are
shown in Table 4-5.
The most common causes for low quality of print are described below:
• Incorrect movement of the product past the printhead (for example
the use of gravity conveyors, roller conveyors)
• Dust or dirt blocking or deflecting jets
• Slippage of the product on the conveyor
• The distance between the face of the printhead and the printed surface
is not consistent. This difference is caused normally because of the
following reasons:
- The product guidance (product handling) is not enough.
- The product is distorted (for example, bent cardboard box).
Printer Type
Minimum Speed
Maximum Speed
Torus 126
10 mm/second
(0.6 m/min)
550 mm/second
(33 m/min)
Torus 380
10 mm/second
(0.6 m/min)
550 mm/second
(33 m/min)
Torus 500
10 mm/second
(0.6 m/min)
550 mm/second
(33 m/min)
Table 4-5: Conveyor Speeds
