Figure 2: Clear zones
We anticipate that the most likely position for a Mailmark barcode will be adjacent to the Delivery Address Block. A Mailmark barcode may encroach on the 5mm clear zone which is recommended around the Delivery Address Block but there must always (and, for clarity, this is a requirement, not a recommendation) be a clear zone of: • at least 2mm between the Delivery Address Block and a Royal Mail 4-State Mailmark barcode (see Figure 3); or • at least 4 times the size of the modules in the Mailmark barcode between the Delivery Address
Block and a 2D data matrix Mailmark barcode. A 2D data matrix is made up of modules and these can vary in size from 0.5mm and 0.7mm. The clear zone must therefore be at least 2mm when printed at 0.5mm and at least 2.8mm when printed at 0.7mm. If a Mailmark barcode is placed adjacent to the Delivery Address Block then the imaginary rectangle drawn around the outer extremities of the Mailmark barcode and the Delivery Address Block forms the ‘Delivery Address and Mailmark Block’. The following diagrams show the 2mm clear zone required between a Royal Mail 4-state Mailmark barcode and the Delivery Address Block (not to scale):
Figure 3: Delivery Address and Mailmark Block
Please note:
Please note that:
There is a requirement for there always to be a gap of at least 4 times module size between a 2D data matrix Mailmark barcode and the edge of any label and there must always be a gap of 2mm between a Royal Mail 4-state Mailmark barcode and the edge of any label.
• The same principle applies to the gap between a 2D data matrix Mailmark barcode and the Delivery Address Block. • It is mandatory that the Mailmark barcode and clear zone remains visible at all times. Labels The left, right, top and bottom edges of the Delivery Address Block or Delivery Address and Mailmark Block must be at least 2mm away from the edge of any label, and can only be this close if there is a total of 5mm clear area between the left, right, top and bottom edges of the Delivery Address Block and any print, graphics or patterning on the envelope or any other surrounding material.
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