Canon MX850 Series Manuel D’Utilisation

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Troubleshooting
„
Printing Does Not Start/Printing Is Blurred/Colors Are Wrong/Straight 
Lines Are Misaligned
„
White Streaks
„
Printed Paper Curls or Has Ink Blots
Cause
Action
The media is loaded with the wrong 
side facing upwards.
When using paper with one printable surface, make sure that the paper is 
loaded in the Rear Tray with the printable side facing up or in the Cassette with 
the printable side facing down.
Printing on the wrong side may cause unclear prints or prints with reduced 
quality.
Refer to the instruction manual supplied with the paper for detailed information 
on the printable side.
Ink tank is empty.
See “An Error Message Is Displayed on the LCD” on page 133 to identify the ink 
error, and then take the appropriate action depending on the error condition.
The protective film is remaining.
Make sure all of the protective film is peeled off and the air hole is exposed, as 
illustrated in (A). If the orange tape is left as in (B), pull the orange tape and 
remove it.
(A) Correct
L-shaped air hole is exposed.
(B) Incorrect
The tape is not peeled off.
Print Head nozzles are clogged.
See “When Printing Becomes Faint or Colors Are Incorrect” on page 114 and 
perform any necessary maintenance operation.
Print Head is misaligned.
If you did not align the Print Head after installation, straight lines may be printed 
misaligned. Make sure to align the Print Head after you install it.
See “Automatic Print Head Alignment” on page 119 and perform Automatic Print 
Head Alignment. If this does not solve the problem, see “Manual Print Head 
Alignment” on page 120 and perform Manual Print Head Alignment.
Cause
Action
Print Head nozzles are clogged.
See “When Printing Becomes Faint or Colors Are Incorrect” on page 114 and 
perform any necessary maintenance operation.
Cause
Action
Paper is too thin.
When printing data with high color saturation such as photographs or images in 
deep color, we recommend using Photo Paper Pro or other Canon specialty 
paper. See “Paper Handling” on page 21.
Printing graphics with the Intensity 
setting set too high.
Especially if you are using plain paper to print images with high intensity, the 
paper may absorb too much ink and become wavy, causing paper abrasion.
When copying, see “Making Copies” on page 35 and reduce the intensity 
setting. Then try printing again.
When printing from your computer, refer to “Print Results Not Satisfactory” in the 
User’s Guide on-screen manual.
(A)
(B)