Canon iP4200 will not print any colors at all

[printerphobe]

All of a sudden my printer will not print any colors at all. The ink cartridges are full. I have printed out the test pattern that follows the cleaning function and the only part that prints at all is PGBK. I have taken out the cartridges ands the print head that they fit into. I then replaced all of these items and had the same results with the test pattern. Could this be a software issue?

 

[mikling]

Sounds like the priming pump assembly is at fault. Check for trigger37's posts on how to mend this. It is hardware related.