Error pattern compensation
OwnerMichael Daniel Armani, David Souza Jonesinventors
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Abstract
An accelerometer is supported on a print head assembly to determine actual acceleration, and a computer system is used to obtain and store information about error in movement along a specified axis. The method used is to activate a motor for a selected axis at a particular location, then calculate an expected acceleration. The next step is to measure the actual acceleration data and then compute error data. Following that is a step to store error data in the memory as a function of position and error. These steps are repeated for N locations along each specified axis. Then, this error data is referred to during actual printing operations to reduce error.
Claims2
An error pattern compensation apparatus for using in printing, comprising:
- a print head assembly;
- at least one motor for moving said print head assembly along a specified axis;
- an accelerometer carried by said print head assembly to determine actual acceleration;
- and
- a computer system to obtain and store information about error in movement along said specified axis.
An error compensation method for use in printing, comprising the steps of:
- providing a print head assembly;
- providing at least one motor for moving said print head assembly along a specified axis;
- providing an accelerometer carried by said print head assembly to determine actual acceleration;
- providing a computer system to obtain and store information about error in movement along said specified axis;
- activating a motor for a selected axis at a particular location,
- calculating an expected acceleration,
- measuring actual acceleration data,
- computing error data, and
- storing the error data in the memory as a function of position and error.
Dependencies are inferred from the claim text.