Question about Canon PIXMA MP750 All-In-One InkJet Printer

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No black ink coming out from new cartridge?

I've tried the deep cleaning previously suggested but I am getting NOTHING out of the black ink options on my mp750...I am at a loss, what can I do? Thx...

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I just posted this solution to two other, related questions. It may be time to try desperate measures!

I have a PIXMA MP750 and months ago my yellow ink stopped printing. I was only able to use the printer for black and white printing. Every once in awhile I would try multiple deep cleans, new ink cartridges, etc. etc. I talked to the very unhelpful folks at Canon who suggested a new print head ($70), but they couldn't guarantee this would actually work. They really thought it would be best just to buy a new printer.

Although I was feeling bad about adding yet another cheap printer to the landfill I'd pretty much decided to get a new printer. As a last resort I decided to use a suggestion I came across (at pcuser.com) to run hot water through the print head. It was easy to remove the print head (check your manual). I propped the head up in my dish drainer and ran hot water straight from the tap first through the end with the little circular parts and then through the end with the metal strips. I eventually used boiling water from the kettle.

As I poured water through one end I started to see yellow ink coming though the other end so I figured the ink had dried in the head. I kept pouring water through (from both ends) until the water ran clear. I dried the print head, put it back in with the cartridges and VOILA! after MONTHS without yellow ink it's working beautifully again!

If you've tried everything else and feel desperate enough to buy a new printer you might want to try this and report back.

Posted on May 12, 2009

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Right-click the printer icon, and then select 'Properties'.
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maintdeep.jpg

3. Select 'All Colors', 'Black' or 'Color' for the print head to be cleaned.

allcolorsorblack.jpg



4. Read the message displayed, and then click 'OK'. The power lamp blinks and print head deep cleaning starts. (Do not perform any other operations until print head deep cleaning is complete. Print head deep cleaning takes about 1 minute.)

IF ABOVE STEPS DOESN'T WORK TRY THESE STEPS BELOW

Check ink tank vent hole The ink tank requires air to flow through it so ink can move from the reservoir to the print heads.

  1. Confirm there is no orange tape across the top of the ink tank

  2. If the orange tape is as shown in Figure (1), it is properly removed.

    ink_tank_tape.jpg

    *BCI-3's shown in this example.

  3. If the orange tape is as shown in Figure (2), remove the remaining tape to the level shown in Figure (1).

  4. Make sure each ink tank is snapped into the printer.

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