Service manual

ADJUSTMENT

2-77

2 ADJUSTMENT

No.16

Linearity evaluation pattern

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

31mm

Edge of paper

237mm

190mm190mm

280mm

206mm

20mm