Canon imagePROGRAF iPF9400 Manual

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・ 
If you set the Head Height lower than the automatically set height in parentheses ( ), check 
that the printhead does not rub against the paper. (If the printhead rubs against the paper, 
there will be scratches in the printing results.) If the printhead rubs against the paper, this 
can cause damage to the printhead.
 
・ 
If you change the Vacuum Strength, check that the printhead is not rubbing against the 
paper. (If the printhead rubs against the paper, there will be scratches in the printing results.) 
If the printhead rubs against the paper, this can cause damage to the printhead.
 
・ 
For details on the Head Height and Vacuum Strength, refer to the help.
 
 
15. The Step 6: Confirm the settings dialog box is displayed. 
Configure the settings of the custom paper, and then click the Next button. 
 
 
16. The Confirm Update dialog box is displayed. 
Confirm the updates and then click the Execute button.