Doesn t react on the buttons on top of the machine. Keeps asking if I changed the ink tank. Getting it of the power doesn t help

Part A: Cleaning the waste ink tank.
1) Open the front cover and power-ON, when the catridge come out from where it hiding, quickly unplug the power cord.

2) Use a tissue (preferred toilet tissue) to **** out the excessive ink in the waste ink tank in where the catridge hide. After you satisfy, close the front cover.

Part B: Reset the waste ink counter.
3) While pressing the ON button, plug in the power cord. The power light will be in orange/yellow. (This is mean it is in service mode).

4) Keep pressing the ON button, press the RESUME button 4 times. (The light change everytime you press it.)

5) Release both buttons, and restart the printer.

The printer should now operate as usual and stop blinking it LED.
Best of luck!

Your 'waste ink tank' is supposedly getting full.
Note that it may actually be getting full, if it is, and you keep printing, it can get messy. very very messy. ;>
I'd use a piece of folded newspaper about the size of the printer underneath the printer just to be safe. If you do this waste tank counter reset a few times, you WILL leak ink.

Power off the printer. Hold down Resume button, keep holding.
Hold down power button, wait for beep, release resume button while still holding power button down.
Press Resume twice, and release all buttons. Wait for indicator light to settle (stop changing). Press resume either 3 or 4 times, the indicator light will turn orange when you have pressed it enough times. Do not hold, just press.
When the light is orange, press power.

If you still get the error, you may have enough ink to actually physically block a sensor in the tank. When that happens, not only are you close to ink stains, you have to disassemble the printer and clean the pads and 'tank' out. This is even messier than an ink leak. ;>

Hi,

The little chips on the front of the cartridge create a trouble for people trying to refill the cartridge, as of right now, there is no way to easily reset the chips. If you refill them, they still register as empty, and therefore don't work.
If the following tips doesn’t help, you can try to install the original new ink cartridge following the instructions in the user manual. This can solve the problem.
Note :
Be sure to install the ink tanks in the correct order indicated by the label on the Print Head Holder. The machine will not print if an ink tank is installed in the incorrect position.
For information on the compatible ink tanks, refer to the back cover of the Quick Start Guide.
Tips before Replacing Ink Tanks : Important:
- To maintain optimal printing quality, we recommend the use of specified Canon brand ink tanks.
Refilling ink is not recommended.
- Once you remove an ink tank, replace it immediately. Do not leave the machine with ink tanks removed.
- Replace empty tanks with new ones. Inserting partially used ink tanks may cause the nozzles to clog. Furthermore, with such tanks, the machine will not be able to inform you when to replace the tanks properly.
- Once an ink tank has been installed, do not remove it from the machine and leave it out in the open. This will cause the ink tank to dry out, and the machine may not operate properly when it is reinstalled. To maintain optimal printing quality, use an ink tank within six months of first use.
- Color ink may be consumed even when printing a black-and-white document or when black-and-white printing is specified.
Color ink is also consumed in Print Head Cleaning and Print Head Deep Cleaning, which may be necessary to maintain the machine's performance. When an ink tank is out of ink, replace it immediately with a new one.
After replacing ink tank;
Turn off the machine, and unplug the power cord of the machine from the power supply. After five minutes or more, plug the power cord of the machine back in, and then turn on the machine.

If you would like to vote for the answer, this will help the others to see the similar problems solved and also will be a satisfaction factor for me to continue helping you.
All the best.

Hi there you can try.
Following step by step resetting canon Pixma iP90 :

• Before resetting printer canon iP90, start with printer power off.
• Press resume button coincide with power button.
• While pressing power button, release resume button.
• Press resume button 2 times and then release both button
• Green LED indicator will blinking and then stopped blinking.
• When the Power LED lights in green, press resume button 4 times.
• Press power button and the printer power will off. Otherwise off, depress again power button.
• And the turn on the printer again, your printer canon iP90 should be response as normal.

All I ask is please come back and just gave a vote, it will gave me some satisfaction to know am helping some one so I will keep on helping.
All The Best: Pineworks

This mean multiple ink tanks of the same color installed or Ink tank in a wrong position.Check your ink tanks.This ink tanks has a memory chip.Sometimes this chip fails.
If the green light blinks with a orange 7 times this mean the waste ink tank is full.Follow this:
1. Turn off printer
2. Hold down Resume button and press Power button.
3. Keep holding down Power button and let Resume button go.
4. Press Resume button 2 times then let BOTH buttons go.
5. Green lights will flash and then stop blinking.
6. When green lights are solid, press the Resume button 4 times.
7. Press the Power button and the printer should turn off, if not, press the Power button once more.
8. Your printer should respond as normal.

Take to a ink refill store and ask the to test on there machine(cartridge world etc) it will tell if cartridge is good or not! hope this helps!!!

u can try to press and hold the reset button several minutes untill the printers react again

With the machine powered on. Just lift up on the entire top portion on the platen unit, lower the front verticle cover and the printhead should come to the correct position to change out the ink tanks, just tilt tanks towards the front of the unit and lift out.

Yes it is possible, Try injuctions to refill your cartidates.

Two flashes: Out of paper, paper jam or paper feed error
Replace the paper correctly and press the RESUME/CANCEL button.
If paper has jammed in the printer, clear the jam and press the RESUME/CANCEL
button.

Three flashes: Paper jam
If paper has jammed in the printer, clear the jam, replace the paper in the printer
correctly and press the RESUME/CANCEL button.

Four flashes: Empty ink tank
One of the ink tanks is empty. Replace it.

Six flashes: No print head installed
Install a print head.

Seven flashes: Defective print head
Remove and reinstall the print head.
Also, ensure that the protective tape has been removed. If reinstalling the print head
does not resolve the problem, replace it with a new one.

Eight flashes: Waste ink tank almost full
The printer has a built-in waste ink tank for the ink used during print head cleaning. Eight
flashes indicates that the waste ink tank is nearly full. Press the RESUME/CANCEL
button to cancel the error so you can continue printing. Before the waste ink tank
becomes completely full, contact a Canon service representative to have the waste ink
tank replaced. Canon recommends to call for service as soon as this error occurs. Once
the waste ink tank becomes completely full, printing will be no longer
possible.