Canon MP800R Benutzerhandbuch

Chapter 11

Routine Maintenance

When printing becomes faint or colors are incorrect, even if ink remains in the ink tanks, the Print 
Head nozzles are probably clogged. Follow the procedures below to clean the nozzles.

If the ruled lines are shifted after running the Print Head maintenance, align the Print Head.

z If the ruled lines are shifted

Before printing the nozzle check pattern or cleaning the Print Head, check the following;

– Open the Scanning Unit (Printer Cover), and make sure that all the ink tanks click into place and 

then their lamps light red.

– If any one of the lamps is flashing, the associated ink tank is empty or running low. See 

“Getting 

the Ink Level Information” on page 108

.

If an ink tank lamp is flashing even though ink remains in that ink tank, it is inserted in the wrong 
position. Make sure that the correct ink tank color is inserted in each position. Open the 
Scanning Unit (Printer Cover) and make sure all the ink tank lamps are lit. See 

“Replacing an 

Ink Tank” on page 108

.

– If the ink tank lamp is unlit, press the 

 mark on the ink tank firmly until it clicks to fully insert 

it. Make sure that all packaging material is peeled off the ink tank. See 

“Replacing Ink Tanks” on 

page 109

.

 See 

“Printing the Nozzle Check Pattern” on page 116

After Print Head 

cleaning, print the 

nozzle check 

pattern.

If missing lines or white stripes appear

See

“Print Head Cleaning” on page 118

If the problem remains after performing Print Head 

cleaning twice

See

“Print Head Deep Cleaning” on page 119

If Print Head Deep cleaning does not resolve the problem, contact the Canon Customer Care 
Center.

See

“Aligning Print Head automatically” on page 120