Xerox DocuColor 2045 Color Management Manual page 27

Stock Management and Calibration
This procedure is more likely to be necessary for iGen3 due to
image-to-page registration errors, but may also be applicable for
DC20xx/60xx printers.
Figure 3-1. Calibration target and whitespace
Figure 3-2. Calibration step 1
Color Management Guide 3-5