Canon iPF8400S Service Manual page 233

c) ADJUST
Performs adjustments and prints the adjustment and check patterns necessary for adjusting the printer parts.
1) PRINT PATTERN
NOZZLE 1
OPTICAL AXIS
LF TUNING
LF TUNING 2
2) HEAD ADJ.
Set or initialize the registration adjustment values of each printheads.
Display
MANUAL HEAD ADJ
ADJ. SETTING
RESET SETTINGS
3) NOZZLE CHECK POS.
This mode is for adjusting the optical axis of the head management sensor. For details, refer to "Disassembly/Reassembly" > "Adjustment and Setup Items" > "Pro-
cedure after replacing the head management sensor".
4) GAP CLIB.
This mode measures the gap between the printhead and media by using the multi sensor and corrects the calibration value.
5) CHANGE LF TYPE
Change the type of the feed roller.
0: Old feed roller
1: New feed roller
Display
Prints the nozzle check pattern by single direction/ single pass without using the non-discharging
back up.
It is used to check for the non-discharging nozzles.
- Media size: A4
- Media type: any
Prints the pattern and adjusts the optical axis of the multi sensor.
For details, refer to "Disassembly/Reassembly" > "Adjustment and Setup Items" > "Procedure
after replacing the carriage unit or multi sensor".
- Media type: photo glossy paper
Carry out automatic correction of eccentricity of the feed roller. For more details, refer to
"Disassembly/Reassembly" > "Adjustment and Setup Items" > "Procedure after Replacing the
Feed Roller or Feed Roller Encoder".
- Media type: Photo glossy paper
- Media size (width): 36 inches or wider
Carry out manual correction of eccentricity of the feed roller. For more details, refer to
"Disassembly/Reassembly" > "Adjustment and Setup Items" > "Procedure after Replacing the
Feed Roller or Feed Roller Encoder".
- Media type: Photo glossy paper
- Media size (width): 36 inches or wider
EXTENSION Prints the detail patterns for the manual head adjustment at CR SCAN SPEED 2 (25inch/sec [high printing
mode]).
After printing, the mode will change to [ADJ. SETTING]. Check the printed patterns and input the set
values.
Try adjustment in this mode if vertical lines are warped or colors are out of alignment when the printer driver
option "High-Precision Printing" or "Priority on dot placement accuracy" is selected.
DETAIL Prints the detail patterns for the manual head adjustment at CR SCAN SPEED 3 and 4 (33.3, 40inch/sec).
After printing, the mode will change to [ADJ. SETTING]. Check the printed patterns and input the set
values.
Try adjustment in this mode if "BASIC" does not improve printing.
BASIC Prints the basic patterns for the manual head adjustment at CR SCAN SPEED 1 to 4 (12.5 to 40inch/sec).
After printing, the mode will change to [ADJ. SETTING]. Check the printed patterns and input the set
values.
A to F A-1 to F-2 This mode is to input the registration adjustment values.
It is possible to return the values to the former one by printing the status print before changing the value.
SAVE SETTINGS Save the registration adjustment values that has been input.
Initialize the registration adjustment values (to 0).
Description
Description
Chapter 7
7-15