What are these lines?

jjohnl

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View attachment 10931

This is a 13" wide print on 13x19 Canon PPPGII paper using OEM inks in a PRO-100. All the carts have plenty of ink. A few hours ago I printed it at 12" wide and it was fine. After printing this mess, I cropped out a 4x6 section at the same resolution and printed it on 4x6 paper (same kind) and it was fine. So I printed it again at 13" wide and it looked exactly the same way: the lines start right above the glasses and continue to the bottom. Not only do the lines start at the same place on the two prints, they appear to be exactly the same density in both prints.
Does anyone know what caused this? TIA

Edit: Well, a nozzle check showed a big problem with one of the gray inks. I didn't run one before because the 4x6 print was perfect. I tried to delete the post but couldn't see a way to do that.
 

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jjohnl

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Maybe I should change the topic of this post to:
Why do the white lines change position every time I do a head cleaning?
 

PeterBJ

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Was the problem solved after changing or refilling the offending grey cartridge? And what kind of ink/cartridges do you use? New OEM, refilled OEM, refillable after market cartridges, single use after market cartridges or refilled single use after market cartridges?

Please reupload the scans/photos showing the problems with the print and the nozzle check.

I have experienced something maybe similar with a Canon Pixma iP4000. The pigment black grid in the nozzle check showed some missing nozzles. Cleaning the nozzles caused the missing nozzles to move around and vary in numbers. But clogged nozzles do not move around. The problem was caused by the pigment black cartridge that had an ink flow problem even if it contained lots of ink. Using another pigment black cartridge solved the problem.
 
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jjohnl

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Was the problem solved after changing or refilling the offending grey cartridge? And what kind of ink/cartridges do you use? New OEM, refilled OEM, refillable after market cartridges, single use after market cartridges or refilled single use after market cartridges?

Please reupload the scans/photos showing the problems with the print and the nozzle check.

I have experienced something maybe similar with a Canon Pixma iP4000. The pigment black grid in the nozzle check showed some missing nozzles. Cleaning the nozzles caused the missing nozzles to move around and vary in numbers. But clogged nozzles do not move around. The problem was caused by the pigment black cartridge that had an ink flow problem even if it contained lots of ink. Using another pigment black cartridge solved the problem.
That's very interesting! (Unfortunately I've already started the head-cleaning process with Windex, but live and learn.)
I've uploaded the picture again.
And it was new OEM.
Thanks
 

The Hat

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Use this method below to up load your Pics..


upload.JPG
 

jjohnl

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Was the problem solved after changing or refilling the offending grey cartridge? And what kind of ink/cartridges do you use? New OEM, refilled OEM, refillable after market cartridges, single use after market cartridges or refilled single use after market cartridges?

Please reupload the scans/photos showing the problems with the print and the nozzle check.

I have experienced something maybe similar with a Canon Pixma iP4000. The pigment black grid in the nozzle check showed some missing nozzles. Cleaning the nozzles caused the missing nozzles to move around and vary in numbers. But clogged nozzles do not move around. The problem was caused by the pigment black cartridge that had an ink flow problem even if it contained lots of ink. Using another pigment black cartridge solved the problem.
Looks like you nailed it. A new cart fixed the problem. Much thanks.
 

PeterBJ

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Thank you for the feed-back. Nice to hear the printer is OK with the new cartridge.

Striping can be caused by both clogged nozzles and a cartridge with ink feed problems.
 

jjohnl

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So is there any hope for that cart? I usually keep empty OEM carts for refilling; can it be saved?
 

PeterBJ

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If the grey cartridge was getting empty I think it will be OK after a refill. Else it might be OK after a flushing and drying, See this post.

Notice that CLI-42 Y cartridges should not be refilled unless every trace of OEM ink is removed. The reason is that remnants of the OEM yellow ink can react with the refill ink or even water used for flushing the cartridge. The reaction product is a gel that can block and ruin the print head. Instead it is recommended to use a flushed and dried cartridge of one of the other colours with the CLI-42 Y chip attached. CLI-8 cartridges are the same design and dimensions as CLI-42 cartridges so they are also suitable for refill with the CLI-42 chip attached. The CLI-8 Y is recommended for the yellow as the cleaning then is less critical.
 
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