Minolta Di551 Service Manual page 375

ADJUSTMENT
Linearity evaluation pattern
No.16
Check item
Use this check pattern to determine whether the fault is with the scanner or the printer. The printer
horizontal magnification, vertical magnification, tilt, and leading edge timing and etc, can be
checked. If the copy image is defective despite no abnormality in the test pattern, the scanner is
at fault.
Note:
Loss of the image occurs in test pattern when printing on paper other than A3 paper.
Test patterns : Sample of A3 paper output
Edge of paper
31mm
237mm
Edge of paper
2-78