Canon Pro-100 Nozzle Test Issue

BarryN

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After not using my Pro-100 for a couple of months because of travel, I printed a nozzle test before gearing up to do some printing. The photo magenta pattern had a gap through the center. After printing the nozzle test, one cartridge (grey) reported low, so I changed them all. Both sets are Precision Color refills. I ran a print head clean cycle, but problem persisted. Then two deep cleaning cycles -- no change. I let the printer sit for 24 hours and ran a deep cleaning cycle again. No effect. I have never had an nozzle issue before. I have not yet tried reseating the print head.

The result from the last nozzle test that I ran is attached. It is the same as the others.
 

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stratman

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Most likely an irreversible print head malfunction. This assumes you are using new or known working cartridges. Still, nature usually avoids straight lines and so ink blockage, or a poorly working cartridge is unlikely. You can try flushing with water and soaking the print head in water and Dawn or Fairy liquid dish washing soap, but I doubt it will help. More deep cleaning are probably unhelpful as well and may worsen the issue.

A new print head is the fix. Go on eBay and search for QY6-0084, the model number of the Pro 100 print head to see the prices. Do not get a refurbished one or one from China. Then call Canon Sales if you are in the USA as they often have the best prices.

The most economical way of obtaining a new Canon Pro 100 print head at the moment is to buy a new printer from either Adorama or B&H Photo. $60 after $250 rebate!
 

BarryN

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Thanks for the reply. Fortunately (perhaps unfortunately) I had a print head that I had salvaged from a Pro-100 with a damaged timing strip. I took advantage of the July 4th holiday to swap out the head and problem solved.
 
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