You can adjust plotter calibration to correct scaling discrepancies, and you can add custom paper sizes for nonsystem plotters.
Plotter calibration is an optional process. If your plotter meets the manufacturer's specifications for accuracy of scale, a 10-inch line in a drawing plotted at a scale of 1:1 should be exactly 10 inches long on paper. If you need to correct scaling discrepancies, you can adjust the plotter calibration. If your plotter provides a calibration utility, use that utility instead of the AutoCAD-based product's calibration utility so the calibration is available for all applications using the plotter.
Calibrating a plotter is done by
The program then scales the output based on the entered calibration values for the plotter to correct errors in its hardware scaling.
When you finish the Calibrate Plotter wizard, a plotter model parameter (PMP) file is created to store the results of the calibration for the plotter. The program automatically attaches the resulting PMP file to the plotter configuration (PC3) file that you used to perform the calibration test.
For a nonsystem plotter, you can add a custom paper size or change the printable area of a standard or nonstandard paper size. New paper sizes are added to a PMP file. You can also modify standard paper sizes to adjust the printable area to match a printer's capabilities.
Custom paper sizes cannot be created for system printers, but you can correct errors in the printable area of standard paper sizes.