Canon image Prograf iPF780 Series, User Manual

Page: 528 / 648

Troubleshooting Paper Abrasion and Blurry Images
Troubleshooting Paper Abrasion and Blurry Images
The Printhead height setting affects printing quality.
Specifying a low Printhead height makes images clearer and enhances printing quality but may cause paper to rub
against the Printhead.
On the other hand, specifying a high Printhead height will prevent paper from rubbing against the Printhead but may
reduce the printing quality.
Important
• Paper rubbing against or becoming caught on the Printhead may jam or result in printed documents that are soiled.
Note
• Raise or lower the printhead, depending on the nature of the problem.
(See "Paper rubs against the Printhead.")
➔
P.589
(See "The edges of the paper are dirty.")
➔
P.590
(See "Image edges are blurred or white banding occurs.")
➔
P.593
1
On the Tab Selection screen of the Control Panel, press
◀
or
▶
to se-
lect the Paper tab ( ).
Note
• If the Tab Selection screen is not displayed, press the Menu button.
2
Press the OK button.
The Paper Menu is displayed.
3
Press ▲ or ▼ to select Paper Details , and then press the OK button.
4
Press ▲ or ▼ to select the type of paper, and then press the OK button.
Note
•
When Head Height is set to Automatic , the setting value selected
for the previous print job is displayed (to the right of Automatic )
once you select the type of paper currently supplied.
However, the value is cleared when the printer is turned off or the pa-
per is replaced.
5
Press ▲ or ▼ to select Head Height , and then press the OK button.
6
Press ▲ or ▼ to select the desired setting value, and then press the OK button.
Note
• Using Automatic will ensure that the printer adjusts the Printhead height to the optimal level before printing,
accounting for the ambient temperature and humidity. When a setting other than Automatic is used, that val-
ue will always be applied.
• Depending on the type of paper, some setting values may not be available.
Troubleshooting Paper Abrasion and Blurry Images
iPF780
User's Guide
Adjustments for Better Print Quality
Adjusting the Printhead
528