Smudged horizontal lines

SOURCE: Black Printing is bad.

have you tried running the cleaning options? that may help. or is your black ink running low?

SOURCE: new ink cartrage

Print Nozzle Check Pattern

1. Press the Open button to open the output tray.
   
   
   
   
2. Load letter-sized plain paper in the auto sheet feeder (ASF) or the cassette.
   
   
3. Display the Maintenance screen on the printer.
   
   
4. Press the up or down cursor to select [Nozzle check], then press the <OK>.
   
   
   
   
5. Press the up or down cursor to select [Yes], then press <OK>. (The nozzle check pattern is printed.)
   
   
6. Confirm the nozzle check pattern.
   

1. When all patterns are printed normally, press the up / down cursor button to select "All A" and press the OK button.
   
   
2. When any patterns are printed abnormally, press the up / down cursor button to select "Also B" and press the OK button.
   

1. Display the Maintenance screen on the printer.
   
   
2. Press the up or down cursor to select [Cleaning], then press <OK>.
   
   
   
   
3. Press the up or down cursor to select [Yes], then press <OK> to start print head cleaning.
   
   Note:
   Do not do any other operations until print head cleaning is completed.
   
   
   
4. Print the nozzle check pattern and check the print head status.
   

1. Display the Maintenance screen.
   
   
2. Press the up or down cursor to select [Deep cleaning], then press <OK>.
   
   
   
   
3. Press the up or down cursor to select [Yes], then press <OK> to start print head deep cleaning.
   
   Note:
   Do not do any other operations until print head deep cleaning is completed.
   
   
   
4. Print the nozzle check pattern and check the print head status.
   
   Note:
   Ifthe printed result does not improve even after doing print head deepcleaning, turn off the printer. Then, after 24 hours or later, do printhead deep cleaning again. (After a given time interval, ink coulddissolve itself, resulting in ink unclogging.
   
   

SOURCE: Lines running horizontally across the printed colour page

Checked ink cartridge's, two had dried out, still had ink in them but the exit apertures were blocked.
So new set of ink cartridges and problem fixed.
Thank you
Jim

SOURCE: Printing anything in black comes out with horizontal blank lines

Have you tried updating the printer driver (first uninstall the existing driver and make sure you have the latest one already saved to your PC before starting). I don't think your current one has mysteriously misbehaved, I suspect that it has been corrupted in some way (a new download may have done something to a critical part of the driver). By deleting and re-installing you are "refreshing" everything. Good luck!

SOURCE: I have a Canon i560

change the black ink cartridge