Canon iPF800 Series Service Manual page 297

b) NOZZLE 1
A sample printout that is produced by executing [SERVICE MODE]> [ADJUST]> [PRINT PATTERN]> [NOZZLE 1] is shown below.
c) OPTICAL AXIS
A sample printout that is produced by executing [SERVICE MODE]> [ADJUST]> [PRINT PATTERN]> [OPTICAL AXIS] is shown below.
Nozzle Check Pattern SERVICE
F-7-2
F-7-3
Chapter 7
7-19