Canon PIXMA TR4720 Online Manual page 538

5100
Cause
Printer error has occurred.
What to Do
Cancel printing and turn off the printer.
Check the following:
• • Make sure the FINE cartridges are properly installed.
Push up the ink cartridge lock lever until it clicks.
• Make sure FINE cartridge holder motion is not impeded by stabilizer, jammed paper, etc. •
Remove any impediment.
Important
• • When clearing an impediment to FINE cartridge holder motion, be careful not to touch the clear
film (A).
If you soil or scratch this part by touching it with paper or your hand, it could damage the printer.
Turn the printer back on.
If this does not solve the problem, contact your nearest Canon service center to request a repair.
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