Canon Pixma MP130 prints BLACK in 6.75mm alternate stripes

stratman

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Johnmorag said:
http://www.nifty-stuff.com/forum/uploads/8997_canon_mp130_nozzle_check.jpeg
As requested.
This is the Canon MP130 nozzle check image. It is easy to see that there are one or two gaps in the grid, but the most important thing is that the bottom half of the grid is missing, in the same way that it shows up on a black print job.
The occasional missing grid lines are typical of tiny clogs in the print head for your pigment black ink. The bottom missing portion is either a clog or an irreparable failure. Soaking and flushing the print head will tell, but it may require several days. If the missing bottom half begins to print out again, even in bits and pieces, then you probably have only a clog and may eventually remove it. Patience and time are key.

What method(s) and material(s) are you using to soak/flush?
 

stratman

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stratman

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Johnmorag said:
As I have already mentioned, I have other printers, so I will continue to try all the ideas suggested as an academic exercise. I will leave the printhead soaking for several days if necessary. I will clean the electrical contacts. I have only used basic copy paper for all my printing, I mainly do black printing. I have already uninstalled and reinstalled the printer driver, with no improvement. The ink seems to be dye-based. I only tried printing with one or other cartridge removed to prove a point, I have not done this before the problem occurred and understand why it is necessary to make sure that sufficient ink is available at all times.
After today, It will be a few days before I return to this topic. Thanks for all the help and suggestions
You are doing all the things you can. If you do not see any improvements in the next few days of proper soaking/flushing then it could be time to concede to an unfixable print head failure and move along.

Concerning the BCI-24 black ink cartridge: I have been working under the assumption that this was pigment ink. Are you saying it is dye-based ink?
 
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