Location patterns and methods and apparatus for generating such patterns
First Claim
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1. A printer system comprising a printer and an ink supply, the printer arranged to print a location pattern comprising a plurality of dots adapted to be read by a pattern reader, the system being further arranged to modify one or more characteristics of the dots substantially in dependence upon the quantity of ink in the supply.
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Abstract
A printer system comprising a printer and an ink supply, the printer arranged to print a location pattern comprising a plurality of dots adapted to be read by a pattern reader, the system being further arranged to modify one or more characteristics of the dots in dependence upon a variable associated with the ink supply.
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Citations
32 Claims
- 1. A printer system comprising a printer and an ink supply, the printer arranged to print a location pattern comprising a plurality of dots adapted to be read by a pattern reader, the system being further arranged to modify one or more characteristics of the dots substantially in dependence upon the quantity of ink in the supply.
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20. A method of generating a location pattern comprising a plurality of dots, comprising the steps of:
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receiving data relating to the degree of deterioration or wear associated with one or more elements of an ink supply; and
,selecting characteristics of the pattern dots in dependence upon the received data. - View Dependent Claims (21, 22, 23, 24, 25)
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- 26. A printer system comprising a printer and an ink supply, the printer arranged to print a location pattern comprising a plurality of dots adapted to be read by a pattern reader, the system being further arranged monitor a variable associated with the printing process and to modify the size of the dots in dependence upon the monitored variable.
- 28. A printer system comprising a printer and an ink supply, the printer arranged to print a location pattern comprising a plurality of dots adapted to be read by a pattern reader, the system being further arranged to modify one or more characteristics of the dots substantially in dependence upon a variable associated with the ink supply.
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32. A location pattern system comprising a printer adapted to print location patterns made up of a plurality of dots and a pattern reader adapted to detect the printed dots, the system being adapted to print patterns having a dot size dependent upon a variable associated with an associated ink supply at substantially the time of printing, such that the dot detection response of the pattern reader is maintained substantially constant between patterns printed when the ink supply contained substantially different levels of ink.
Specification