01-20-2018 02:01 PM
01-31-2019 07:52 AM - edited 01-31-2019 11:40 AM
I have the same problem (blurred printing and double lines on a Canon MG 5550) a cartridge test print shows lines seperating with the PGBK cartridge but OK on the rest, deep cleaning and re-alignment does not help.
The PGBK cartridge is only used with the plain paper settings, change your paper setting to photo matt or similar and your printout is fine!!
Note: printing will be slower with this setting so reduce the quality setting to partially compensate. Duplex printing is not available.
The PGBK cartridge is not used in duplex mode (apparently the pigment ink is felt too sticky for that mode so only the dye inks are used) so ensure the printer is in a duplex mode AND at least 2 pages will be printed.
A possible fix is to carefully clean the timing / encoder strip (clear plastic strip found to the rear of the print chamber) but its hard to get to and many report it doesn't solve the problem.
11-05-2019 02:30 AM
I have the same problem, just after I had to shut down the printer and disconnect the power cord at both ends, to fix a problem with "cover open" misreads.
I have MG5420
Seems to be black ink only in duplex printing. Never had this problem before the last shutdown I mentioned above.