Question about Canon BubbleJet i9950 InkJet Photo Printer

2 Answers

Black-Red-Green-Photocyan-Photomagenta not printing

I've just replaced my print head after the green went haywire and no amount of head cleaning could not get it to work. Now with the new genuine (out of the foil) printhead, 5 colours are not printing.
The Status monitor is ok, the geniune ink levels are all ok in the carts.
Any ideas? as it worked fine up until messing with the print head. Is there a printhead reset?

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  • De-Cypher Jul 29, 2008

    Thanks Votit



    All the genuine inks were working fine, i've just put them in the new print head. I've swapped back to the old printhead and its the same 5 cartridges that are playing up.



    I can only put it down to a printer hardware problem not reading the print head. Is there a print head reset (hardware) or some way of resetting the printer back to factory settings?



    I've also swapped pc to check route from them incase its a driver problem.



    If it is a pump problem, can i fix it myself?

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I had the same problem. If a whole group of colours isn't printing it is probably because a pipe has come off the pump on the inside.

1. To get at it you need to turn the printer on and as the printhead moves away from its parking spot pull out the power cord. This frees the printhead so it can be moved away from the pump.

2. Now you need to take off the printer casing. To do this remove the paper feeder tray and the flap you lift up to get to change inks. These just pull off when in the up position (or did for me).

3. Undo 2 screws that are on the bottom of the printer. Now with a flat head screwdriver remove the grey side panels. There are little arrows pointing you. From what I remember there are 2 on each side. Now do the same all around the printer. You will see little arrows pointing to slots, follow these all around the printer and also on the front are a few. Be firm but don't force anything and you may want a few screwdrivers handy to wedge under it as you free parts to stop it clicking back down on it's self. (scared I was, but it was broken anyway)

5. Now you should see the print parking pump. It has two pipes on the back of it and two larger ones on the front. Look for which one is off and with a pair of tweezers push it back on. If you can't see the ones at the front you need to get to the bottom of the printer. This bit was fun!!

6. At the back there are 2 screws you need to undo, one on each side. They are the ones furthest from you. You will know which ones because as soon as you undo one it frees the bottom and you can partly lift the inside off of the base. Now it might feel like its not freeing but that is because of a cog on the left hand side. Take note of where this cog is and how it sits. I freed mine by turning it upside down and it came free. It is the cog that is holding it in place.

7. Now you can get to the pipes at the front of the printing pump and attach those with tweezers.

Things to watch out for: The pump pad rests on 4 little springs and these may/will fall off. Fiddly to get back on but not hard.
Also ontop of the pump heads is a little plastic cover. I unscrewed that but not sure if it was necessary.


Service manual can be found here:

http://www.megaupload.com/?d=BLC9L7OU

Posted on Mar 26, 2009

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Are you using compatible cartridges? If so have you removed any tape that covers the vent hole if required. Many compatibles need to have a piece of tape removed. If you forget the ink cant get out as the air can't get in.

If it not a piece of tape and there are no flashing lights it could be that the nozzles are blocked or the wick has dried out.

You can do a manual cleaning using some kitchen paper and a little solvent and a small plastic bag.

The first thing we need to do is get the head away from its parking position. Switch on the machine and when the head has moved away from its park position, remove the power lead.

With the top of the machine open, you should be able to move the print head carriage by hand.

Look to the right where the head carriage is normally parked and you should see the pump cap area. It will be a black looking spongy pad covered in ink.

Now take a piece of kitchen paper and fold it over a couple times to make a pad approx 3"x1". Now lay this pad over the top of the pump cap and fold the left edge down toward the base of the machine as in image one (the tissue is the yellow bit in the image)

Now take a syringe or similar and put some solvent into it. The solvent I use is JR Ink Jet Cartridge flush as seen on ebay and the like. If you have any ammoniated window cleaner like Windex you can use this. Put the solvent onto the tissue making it quite damp, but not totally soaked.

Manually move the print head GENTLY back to its park position. The pump cap will try to raise up to meet the bottom of the print head as you move it back. Be careful no to force it or you may break something.

What we are trying to do is bring the solvent dampened pad into contact with the print head. Once located, leave the pad for 5 or 10 minutes whilst the solvent does its trick.

Now move the head away from park - again being gentle. You should now see the pad is a horrible black lump of mush. Pick it out and put it in the plastic bag ? where a glove or use tweezers or pliers.

Repeat the process again but this time let it to soak for just about 1 minute. You should now see the individual ink colours soaking into the pad. If the pad is still black, repeat the process a couple more times.

Once you have some evidence of the individual colours you can run a head clean via the driver or printer control panel.

Then print a nozzle check sheet and if all has gone according to plan you should have a full complement of lines.

This method is applicable ONLY for loss of a few lines on the nozzle check sheet. If you have loss of all the lines in a single or multiple colours, you need to investigate further. It is possible that the pump has failed, the pipes are clogged or something else is causing the problem.

If that does not sort it out, tru using a syringe to put a couple of drops of solvent onto the wick. Its the black plastic spike that stick up and goes into the bottom of the ink cart when it is installed. Put a cupole of drops in, put the cart back in and leave it fpr about 10 minutes. The re-try a head clean using the driver/status monitor.

There is another possibilty after this which relates to a hardware problem but this generaly causes a loss of all ink.

Hope this may help;

Regards,
VOTIT

DON'T FORGET TO RATE

Posted on Jul 29, 2008

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