Canon imagePROGRAF iPF820 User Manual page 563

7.
Align the Angle Adjustment Lever with the red square and close the Top Cover.
A test pattern is printed for adjustment.
Important
•
Do not touch the Linear Scale (a), Carriage Shaft (b), or Ink Tube Stabilizer (c). Touching these
parts may damage them.
8.
Examine the test pattern for adjustment. Determine the straightest set of lines.
9.
Open the Top Cover and move the Angle Adjustment Lever to match the number (or the square)
of the straightest set of lines.
If no single set of lines is perfectly straight, move the Angle Adjustment Lever to a position
between the numbers (or between the number and the square) of the two sets of lines that
are least misaligned.
Adjusting the Printhead
Adjustments for Better Print Quality 549