i960 Waste Ink Tank Pad Replacement

14

A while back one of our printer forum members submitted the article  “Canon i960 Printer Cover & Base Removal”.  Another one of our community members, wfmcg, replied that he had created a Canon i960 teardown document with pics.  I asked if he’d be willing to send it to me, and did.   I was impressed and asked permission to post, so here it is:

Canon i960 Waste Ink Tank Pad Replacement

Important!: First Please read this note at the bottom of the pagebefore starting.

To start the tear down, observe unit for any tab release holes.


Figure 1

In this demonstration, notice that I have removed the print head.This was because the pigmented black had become badly clogged.While I was soaking it in a shallow bath of 50% Clear Ammonia and 50% Distilled Water for a couple of days, I decided to clean out the wastetank absorbent pads.While I went through the shut down procedure, which parked the print head carrier,It would be easier to unplug the printer while the carrier is still in the middle, at the“change ink cartridge” position. That way you will have more room to remove thesquare “stone” below the print head for cleaning.You can see the square stone with the ink still in it in figure 22,while in figure 20 you can see it after it’s been cleaned.(I had to re-take figure 20 for clarity.)


Figure 2

Notice the two release slots. One on right side and one on right rear.Use thin screwdriver to push in locking fingers.


Figure 3

Two release slots on left side, front and rear.


Figure 4

While we’re back here remove paper jam door.


Figure 5

Two more release slots. One on the left front and one behind the start button console.


Figure 6

Remove the two screws from the start button console.


Figure 7

I like to replace the screws into their sockets so they don’t get lost.


Figure 8

Next, gently  remove the multi-wire connector.


Figure 9

After releasing all the locking fingers, gently remove the top.

Now push on the small locking fingers in the top of the spreader bar and remove.


Figure 10

Set the spreader aside in a safe place. 
Figure 11

Remove the now loose USB cover plate. 
Figure 12

Flip unit over, being extremely careful not to damage the mylar location disc and location strip.Use flat screwdriver to release power supply locking clip.


Figure 13

Pop up right side and pull to the right.


Figure 14

Flip power supply over and gently unplug multi-wire connector.


Figure 15

If desired, the lower paper tray may be removed with these four screws.


Figure 16

Find the diagnostic connector in a well at the rear of the bottom of the base.


Figure 17

Use a small screwdriver to push in on the clips and push through hole in base.


Figure 18

Remove left rear interior mount screw


Figure 19

Remove right rear interior mount screw


Figure 20

Remove right front mount screwLeave clip attached to base for now.


Figure 21

I like to leave myself notes as to the location and sizes or lengths of the screws I have removed.  Notice the yellow letters. s=short, l=long, sm=short machine thread.


Figure 22

Later when removing clip from base, note screw location.


Figure 23

As you lift out printer carriage assembly from the base, the paper guiding fingerswant to fall out. Note the direction of the fingers and how they are clippedon to the base, so you can reinstall them properly.


Figure 24

Remove mounting clip from base by removing screw shown earlier andput in a safe place.


Figure 25

We have now arrived at the waste ink (tank) absorbent pads.Notice the pads directly below the print head parked position are the most saturated.


Figure 26

With the top pad removed you can see the amount of ink the lower pad has accumulated.


Figure 27

Remove the pads for replacement or cleaning.


Figure 28

There are two pads below where the print head parks.Notice the different texture on one side of the pads.The cloth-like side of the pads goes down on the bottom pad,and up on the top pad.


Figure 29

Again, remove the pads for replacement or cleaning.Seeing as this printer has been discontinued by Canon, cleaning is probably youronly option.   When cleaning the pads, it becomes necessary to squeeze out the water at some point.This squeezing causes the pads to compress to about half their thickness. So when you reinstall them they do not fill to the same height as before. I have found this not to be a problem. As they fill up with ink again, they expand as they suck up the ink, albeit not completely to their pre-washed thickness.It has been suggested not to squeeze out the pads, but to just let them drip dry fora few days. Although I have not tried this yet, it might be the better option.


Figure 30

Important !!! A note of caution here !!!When handling the printer carriage, be very careful of the Mylar location disc on the left of the carriage and the Mylar location strip (Yellow Arrows) running along the back of the print head carriage.Please DO NOT DAMAGE THESE. When lifting printer carriage out of base, use the tabs (Red Arrows) to do the lifting.   As Usual reassemble in reverse order.

Comments

14 Responses to “i960 Waste Ink Tank Pad Replacement”
  1. KEN BANGEERTER says:

    This is very professionally done!

  2. Tom Calvert says:

    After years of using my i960 printer to print thousands of 4×6 color prints and probably a thousand or more letter size copies, I finally got the dreaded waste tank full error. I found this site (excellent instructions) & started to disassemble the printer. Reviewing the tear-down instructions, I believed that this was going to be a time-consuming process.

    Had an idea of a quick alternate process. I raised the lid to make the print head move to the center, then pulled the power plug. This allows the print head to move freely to either side.

    Then I got a roll of paper towels, a 3″ putty knife & a large straight screw driver. I doubled over a piece of paper towel, placed it over the open slot where the ink pad is. Then using the putty knife I pushed the towel into the pad. This absorbed the ink. Since there was less room to work, I used the screw driver at the ends of the slot. I used numerous pieces of towel & after about 20 minutes, the towel didn’t show much ink absorption. So far, I’m not getting the error message & the printer prints OK. This solution probably won’t last as long as the complete cleaning, but it’s sure much easier to do. Plus there’s no risk in doing damage to the printer.

  3. R Thomas says:

    I pulled the pads out and wash them with hot water in the sink until water was clear. after pressing out most of the water with paper towels, I put them in the oven at 170 degree for about an hour and half. Reinstalled and put the printer back together. I had to try the reset a few times but it is now working very well. Test print came out good.

  4. D. Smith says:

    Excellent guide! I successfully completed the cleaning process, but have not been able to clear the code. After several reset attempts, I still get the “The waste ink absorber is almost full” error message and the amber light flashing eight time followed by one green flash. We love this printer (and have ~160 bucks worth of ink cartridges). Any advice on resetting that code?

  5. F.Pazmino says:

    I want to thank you for posting this instructions, it encouraged me to fix the waste ink absorber problem. Everything went fine with the disassembly, I removed the pads, washed them in warm water with a small mixture of alcohol and ammonia, rinse several times and let it dry without squeezing for a couple days. I installed the pads, put the printer together, reset the counter successfully on 3 trials (my mistake) and now the printer is working fine and like new again. I must say that there was an small spring left over that I could not find where it came from, but the printer is working fine. Thank you for the graphics and for for sharing this valuable information; the I960 is a great printer, I been very happy with it and it was worth the trouble to save it. I have no tips to share since the instructions are very clear and if you take your time and study the photos, follow your common sense, you will have no problems. Good luck.

  6. C Conrad says:

    I did it! I completely disassembled it & cleaned the pads, reset the counter and it all works. However, it is a very irritating job. The pictures were very helpful (thank you!), but should have including some warnings.
    1. Be careful of the switch assembly that presses the little button on the top of the circuit board that lets the printer know whether the cover is up or down. When snapping on the case it is very easy to misalign this so it doesn’t work and if you do, the symptoms are bewildering.
    2. The lever that rests on the bottom right of the paper, along with a complicated lifter, can fall off their axles. Putting them back is tricky, and if done wrong will prevent the printer from feeding paper. Observe the arrangement immediately after removing the top and check it before snapping on the case again.

    Is there no where one could purchase new pads? Cleaning them is a messy operation.

  7. Recently, I started to get printed out documents with a rose or pinkish color. To correct this I went to properties and selected grayscale printing. Then the documents came out as a normal white page document with black print.
    Question is? What is causing the rose/pinkish printouts, wastetank problems? etc.
    Thank you.
    Jerry

  8. Nick Oliarnyk says:

    Many thanks for the photo layout. Other instructions I have seen suggest that the dismantling of the printer is largely a matter of common sense. Would that it were so. I would have been lost had it not been for this detailed overview.

  9. James Maguire says:

    I just want to express my thanks for all the time and outstanding effort put in your article 1960 waste tank pad replacement!
    Your time spent with photographing each step worked perfectly for guiding process step by step!

    Thank You!!!!!
    James Maguire

  10. David says:

    I have an i960 that has worked very well for a number of years. Recently, my wife caused an horrific paper jam printing a multi-page doc with the print tray closed. I then made a bad problem worse when trying to clear the jam – I broke, what i believe is the timing strip film. “It’s a long thin strip of film-like material that runs parallel to the printhead track.”

    Two questions:
    1. Is it still possible to get a replacement part?
    2. Is it relatively easy to install the new strip?

    Any intel/suggestions would be much appreciated.

    Thanks.
    David

  11. Tom says:

    David, send me an email to caltx (at) flash.net

    Tom

  12. Cindy says:

    Thank you so much for the detailed photos and instructions. I was able to follow through and at times it felt a bit of a daunting challenge but in the end it all worked out well! Just needed to take my time and label all the screws and where they came out of. I used the oven method (170 degrees) as posted in the comments section because I didn’t have a couple days to let the pads dry. Thanks again!

  13. Michael says:

    This took a lot longer than I thought it would (maybe 3 hours of tinkering), but it worked! Here are a couple of tips:

    The locking fingers on the spreader bar were tough for me. After I finally pried it off, breaking some of the tiny tabs, I realized that there is a small circle on the inside of each leg (under the bar itself). If you push this outward with a pen, the bar will pop right off on that side.

    My paper guiding fingers didn’t fall out (I don’t think), but the alignment of the paper is kind of off now – it’s like the top has a 0″ margin, and it’s slightly different for each page. I’m just putting up with it, but make sure you keep an eye on these and make sure they’re seated properly.

    The cord that goes to the power/feed button console tends to sneak under the printing carriage, blocking it from settling squarely on the bottom. Keep an eye out for this and make sure it’s fed around the outside of the bottom of the carriage.

    When you’re done, you need to reset the waste ink counter. Most of the instructions I saw online were incorrect, and it took me about 8 tries before I got it to work:

    Start with the printer OFF
    Hold down RESUME and then hold down POWER
    release RESUME
    press RESUME twice, then release POWER
    Let green light blink until printer is done moving print head.
    Press RESUME 4 times (not 3). The light will blink orange, green, orange, green. Press POWER.
    The counter should now be reset and you won’t get the “Ink Pad Full” message anymore.

  14. Steve says:

    The instructions worked great. You need to put the power button cable back into position before you put the printer assembly back into the case. Or, you can undo the right side screw and stretch the case like I did to get it back into position. I used the oven at 175 F for two hours and finished off drying the cleaned pads with a microwave. They shrink but you can still get them back in. Resetting the waste ink counter is a PAIN! In addition to what Michael said above me I also removed the printer head, took out the paper and went through the reset cycyle 8 times. Then I reloaded the printer head and ink cartirges and paper, shut the printer off and then turned it back on. It finally worked.

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