Replacing The Printhead - Canon iPF780 User Manual

iPF780
Perform cleaning as follows.
1
On the Tab Selection screen of the Control Panel, press ◀ or ▶ to se-
lect the Settings/Adj. tab (
• If the Tab Selection screen is not displayed, press the Menu button.
Note
2
Press the OK button.
The Set./Adj. Menu is displayed.
3
Press ▲ or ▼ to select Maintenance, and then press the OK button.
4
Press ▲ or ▼ to select Head Cleaning, and then press the OK button.
5
Press ▲ or ▼ to select Head Cleaning A or Head Cleaning B, and then press the OK button.
Head cleaning is now executed.
6
Print a test pattern to check the nozzles, and determine whether cleaning has cleared the nozzles. (See
"Checking for Nozzle Clogging.")

Replacing the Printhead

Replacing the Printhead
When to replace the Printhead
Replace the Printhead in the following situations.
• If the printing quality does not improve even after one or two cycles of Head Cleaning B from the printer
menu
• If the Display Screen indicates "Open top cover and replace the printhead."
• If your Canon dealer has advised you to replace the Printhead
Compatible printheads
For information on compatible printheads, see "Printhead."
Precautions when handling the Printhead
Take the following precautions when handling the Printhead.
• For safety, keep the Printhead out of the reach of children.
• If ink is accidentally ingested, contact a physician immediately.
Caution
Do not touch the Printhead immediately after printing. The Printhead becomes extremely hot, and there is a risk of
•
burns.
• There may be ink around the nozzles of the Printhead you remove. Handle the Printhead carefully during replace-
ment. The ink may stain clothing.
Important
• Do not open the Printhead pouch until immediately before installation. After removing the Printhead from the pouch,
install it right away. If the Printhead is left after the pouch is opened, the nozzles may dry out, which may affect print-
ing quality.
User's Guide
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Replacing the Printhead
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