Question about Canon S900 InkJet Printer

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Waste ink absorber almost full-Canon S900 inkjet

Like many others I have just received an error message telling me that my waste ink absorber is almost full on my Canon S900 inkjet printer. I found the suggestion from DaWeed B very useful but I wondered how difficult it is to clean the sponge pad. I can see this pad under the printer head. Do you need to remove it and wash it out? I have changed the printer head in the past which is very simple but imagine that removing the pad will be a very messy job. How easy is this? Is there much dismantling to be done? I am fairly good with with DIY jobs. I tested this pad using a cotton bud but it did not seem to be that full although the cotton bud did soak up some of the ink. It is suggested to remove the print head before resetting the printer code and I have read the suggested series of actions but when do you replace the print head, is it after action (6) Press power to set data. I did not need to reset the code after changing the Print Head but assume that I need to reset it after cleaning the sponge pad? Would appreciate any help you can give. Thank you.

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  • WindySteve Jan 22, 2008

    Had the ink absorber problem on my S820. Tried to fix it by not actually cleaning the absorber, just going through the reset procedure (I guess this may have been a bad idea?). Now, when I turn the printer on it makes all the moving around noise and then turns itself off. I can't go into service mode as it just makes the noises and turns off when I release the power button at the end of the sequence. Any ideas how I can get out of this one???

  • Beflat Mar 11, 2008

    Same problem with Canon iP2000 printer. Need advice.

  • Anonymous Jun 16, 2008

    it say waste ink absorber full how do we fix or clean

  • Michael Cullis Jul 05, 2008

    My Canon ip3000 is telling me that the waste ink pads are nearly full. I have advice on how to reset the printer so that this warning does not appear but would appreciate instructions on how to reach the pads so that I can clean them (I have also read advice on how to go about cleaning them).

  • Anonymous Jul 20, 2008

    my message is waste ink absorber is full contact the service center for the

    replacement of the waste ink absorber for my pixma ip 1500 canon printer

  • Anonymous Mar 22, 2009

    Ugh, I had the same problem. I called a Canon authorized repair center and was told because the pads are at the bottom, it takes longer to repair and I'm better off just buying a new one for the same price. It is unfortunate because this printer is fine as long as those pads are replaced. I tried rinsing them and they fell apart. Does anyone know if I can get the replacement pads somewhere?

  • c_vaquera Mar 22, 2009

    I had the same problem. I tried fixing it myself but the pads fell apart while I was rinsing them (nearly 6 years of printing). Does anyone know where I can order the replacement pads? Otherwise, Canon authorized repair is telling me it's going to cost $85/hr and they estimate it's $130 to repair. That's the cost of a new printer. I'd rather not replace since the printer is fine otherwise.

  • tomstr248 Apr 29, 2009

    Same problem. Cleaned the pads (rinsed them with lots of water,
    dried them for 2 days in the sun) and reset the counter. Printer is
    functioning since then.


    The S900 printer is high quality and fast. With the cross subsidy by
    ink businessmodel makes it very difficult to purchase a decent
    replacement.


    I also had the problem of crossflow between different colors and
    this is definitely a damage in the print head. Needed a printhead
    replacement to fix.

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It doesn't matter if you change (wash) the waste ink pad absorber or not, if you reset the error code il will work ok. The waste ink sponge can be full if you had a lot of cleaning done since using the printer, fact is that latest after the error appears the second time, you had to clean it.

  • 1) Figure out how to open the printer by removing the side and inside top plastic panels. Just look at the thing and use your brain. Its all pressure clipped in place, no screws (at least on the S900 and similar models, probably still the same on this years models.) Look for slots and triangles on the 960.
  • On the i960 you'll have to remove the power buttons assembly on the front- take out the two screws, unplug the internal white electro connector plug CAREFULLY, then you can undo the last clip that holds the top in place.
  • 2) No need to remove the ink cartridges in this process- so don't. The mechanism is held down in place in the case by two screws at the very bottom on the outside bottom of the metal chassis inside. Remove these screws then lift up the mechanism. It should lift out fairly easily, but remain attached by wires-- just place it on the top edge of the case.
  • 3) You'll see the blackened (from waste ink) felt pads on the bottom. WEAR GLOVES-- this is skin indelible ink, the only thing that will get it off your hands is CLOROX. Period. There are two skinny pads that sit on top of a larger pad. Note how they fit together.
  • 4) Lift the pads out and rinse out thorough in a sink until very little or no ink comes out. There's no need to use chemical or soap cleaners, just use plain water from the tap and the spray nozzle. Keep rinsing and squeezing the pads, but don't twist them like a towel, squeeze and fold in half however to really get the ink out.
  • Lay flat in the sun for a few hours to dry. Use a hairdryer to get the last bit of moisture out then replace in the printer, and put everything back together.
  • 5) RESET the printer electronics, so you won't get the stupid "waste ink tank full" message any more.

  • WASTE INK TANK RESET PROCEDURE
    Canon BJ F900, F890, F700, F500, S900, S820, S750 and S520
    Turn off the printer.
    Press and hold the RESUME button, then press and hold the POWER button.
    Release the RESUME button, then press and release the RESUME button two more times in succession. (youre still holding the POWER button during this). The printer mechanics will move momentarily.
    You are now in Service mode.
    Pressing the RESUME key will select a function; for example, pressing RESUME 4 times will select the clear waste ink counter function. The lamp will alternate color with each key press.
    1. service/factory test printout, including ink sensor check
    2. EEPROM info printout
    3. EEPROM initialization
    4. Clear the waste-ink counter
    5. Printer model setting. (more selections beyond this- leave this alone)
    After selecting mode, press the POWER button to commit the change, and return to the top of the function selection menu. Pressing the POWER button again turns off the printer for a restart.

    Posted on Jan 14, 2008

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    The reset fixed a problem I had after cleaning the print head. A great tip for cleaning what appears to be a dead or clogged head (especially after using 'lookalike' cartidges) is to use a short piece of plastic drinking straw, a syringe, and hot water. Remove the printhead, then find a straw which will fit tightly over the ink pads inside the printhead, fill the syringe with warm water then place into the straw. Gently depress the syringe until clear water flows out of the head in several fine jets. Repeat for all 6 of the colours. Dry the the head and replace. One problem I had was that the yellow was pink/orange. What I hadn't noticed straight away was that due to a blocked head or maybe bad compatible cartridges, the red had actually syphoned back into the yellow, so no amount of cleaning would fix the problem. If you have bad colouration, might be worth checking each tank hasn't had it's colour contaminated.

    Posted on Mar 06, 2008

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    Yes the pads can be taken out and be replaced or simply be rinsed and dried. They are a felt like fabric and need to be handled carefully or they will disintegrate. However there is no direct technical need to do this. If they become really oversaturated the printer will simply start to leak surplus ink out of the casing and make a mess on the surface it stands. Happened to me with an older HP ink jet before they even had counters.

    You need to disassemble the casing and take out the block with the printing mechanism. It is a medium grade DYF job, well doable for a person with average technical intelligence. I did not have a service manual - well it would be helpful if one did one and post it on the net. Next time my printer is full I will shoot a few pictures during disassembly. I have seen easier things to do and but also more difficult disassembly/reassembly jobs.


    Posted on May 06, 2009

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    Hello Mediatecar I took apart my printer just on the sides and took the top off.  Im having trouble getting the mechanism for the ink cartridges out.  Im not sure what screws your talking about.  Are they on either side of the machine or on one side near the ink cartridges?  I took out one screw on the very bottom on the outside bottom, the only one I could get to and now I cant get it back and and it wasn't that one.  The ink cartridges sit on one side of the printer and I cant get to any screws near it.  Do I have to take the plastic bottom off of the printer so I can get to things?   I see a clip holding a metal dowel that the cartridges moves on.  Is this the area with the screws?  I've been looking at the thing for at least an hour and can't figure out what screws are on the very bottom of the outside bottom.  Im sorry It's not that easy for me.  I see the pads but of course I can't get to them.  Do I remove the entire plastic cover top and bottom so I just have the guts alone?  It almost looks like the bottom is screwed on the guts?

    Posted on Sep 19, 2008

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    First don't bother trying to clean the old pads, I tried and they just fell apart. New ones can be purchased from Canon. It cost me $11.63 for the 3 piece set delivered. Part Numbers QA4-0901-000 replaces QA4-0705-000 (1 piece) and QA4-0902-000 replaces QA4-0705-000 (2 pieces)

    According to my email response from Canon you can call 1-800-828-4040 and ask to speak with a Jamesburg Parts Representative, or call them direct at 866-481-2569.

    (Note: I did this on 04/20/2009 and received the pads a couple of days later)

    It's pretty easy to get the printer apart by removing the smoke colored plastic from the sides/front, then 4 slots to insert a flat blade screw driver to release tabs so the top can be removed, once that's off, remove 2 screws (on each side near the rear) to be able to lift the entire print mechanism out of the way, take out the old pads, put in the new, reassemble, then search the net for how to reset the error message.

    Posted on May 05, 2009

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    I have another problem! My S900 wont go into service mode so i cant reset the counter.. I followed the steps exactly and repeatedly, but I keep getting that dam flashing orange light that wont let me print. what can I do?

    Posted on Feb 24, 2010

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    Reporting solution by daweed:
    "WASTE TANK ALMOST FULL or FULL ERROR MESSAGE PROBLEM
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