f print quality does not improve by the standard cleaning of the
Print Head, clean the Print Head deeply. Cleaning the Print Head deeply
consumes more ink than the standard cleaning of the Print Head, so
clean the Print Head deeply only when necessary.
1. Make sure that the power is turned on.
2. Clean the Print Head deeply.
(1) Press the
(Maintenance) button repeatedly until y appears.
(2) Press the Black or Color button.
The machine starts cleaning the Print Head deeply.
Do not perform any other operations until the machine completes the deep cleaning of the Print Head. This takes about 2 minutes.
3. Check the print head condition.
When the deep cleaning is completed, the LED returns to the copy standby mode.
To check the print head condition, print the nozzle check pattern.
See "
Printing the Nozzle Check Pattern".
If the problem is not resolved, turn off the power and clean the Print Head deeply again after 24 hours.
If the problem is still not resolved, replace the FINE Cartridge with a new one.
See "
Replacing FINE Cartridges".
If the problem is still not resolved after replacing the FINE Cartridge, contact the service center.
Printing the Nozzle Check Pattern
Print the nozzle check pattern to determine whether the ink ejects properly from the print head nozzles.
NOTE
If the remaining ink level is low, the
nozzle check pattern will not be printed correctly. Replace the FINE
Cartridge whose ink is low.
See "
Replacing FINE Cartridges".
You need to prepare: a sheet of A4 or Letter-sized plain paper
1. Make sure that the power is turned on.
2. Load a sheet of A4 or Letter-sized plain paper in the Rear Tray.
3. Open the Paper Output Tray gently, and open the Output Tray Extension.
4. Print the nozzle check pattern.
(1) Press the
(Maintenance) button repeatedly until A appears.
(2) Press the Black or Color button.
The nozzle check pattern will be printed.
5. Examine the nozzle check pattern.
See Examining the Nozzle Check Pattern.
Examining the Nozzle Check Pattern
Examine the nozzle check pattern, and clean the Print Head if necessary.
1. Check if there are missing lines in the pattern (1) or horizontal white streaks in the pattern (2).
(1) Check if lines are missing in this pattern.
If yes, the cleaning is required.
See "
Cleaning the Print Head".
(A) Good
(B) Bad (lines are missing)
(2) Check if horizontal white streaks are present in this pattern.
If yes, the cleaning is required.
See "
Cleaning the Print Head".
(A) Good
(B) Bad (horizontal white streaks are present)
Post back!
Something is leaking on to the center roller, probably from the print head. Multiple attempts to clean the roller didn't help.
This 1/4" black streak on the back side of paper is exactly my problem too. One roller may be responsible; attempts to clean it have not eliminated the problem. The streak ruins everything generated from the printer. With limited access, I can see nothing trapped in the printer. Understandably it's low on ink, consuming it at a high rate. I'm worried replacing the ink tank will waste more without resolving the problem. Has anyone actually fixed this problem?
I had teh same problem about a year & a half ago. I have always used only "real" Canon brand ink cartridges, new, not refilled. I replaced cartridges, cleaned rollers, even bought a replacement print head. Nothing fixed it. It was like the black tank was squirting ink onto the roller just before teh paper came through. If I printed a stack of 20 copies, the first couple had the problem, then it pretty much went away. However it reappeared with every print job. I don't remember how I made it go away, and I wish I did, because it just re-apperead today, at the end of a PGBK large black cartridge. It contiued with the new replacement cartridge. I am
so frustrated I am about ready to throw the printer at the wall.
I have cleaned the print head, tray, roller wheels. I still have this very black streak down the back.
I'm having the same problem.
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