WASTE INK TANK NEAR FULL.

Would you please mentioned the brand and model no otherwise its tough to give the answer because different model different solution through many way. Thanks

How do you empty the waste ink tank have Canon MultiPass MP730 Yahoo...

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No. Send it back to the company for recycling. There should be some way to exchange them for empties wherever you buy the ink.

This may have to do with the method of replacement. Leave the printer on, remove the waste tank, clean the area (sensors may detect residual ink) replace the empty waste tank. If this doesn't work, there may be a chipset on the waste tank to indicate end of life. This is a way for the manufacturer to continue making a truckload of money from the end user. Generally the only way around this is to modify your printer to by-pass this part of the circuit (an electronic solution to replace the chipset). This method will most likely void your warrantee.

Canon Bubble Jet orange light flashes

It's time to replace 3's WASTE INK ABSORBER KIT & reset waste ink counter.
The WASTE INK ABSORBER KIT is approx. USD10/pcs
You should send it to service centre

The POWER Lamp Flashes Orange 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.

Note
Canon recommends that you call for service as soon as this error occurs. Once the waste ink tank becomes completely full, printing will no longer be possible.

An error has occurred in the printer. The number of flashes indicates the type of error, as outlined below. Check the cause and take the appropriate action.
Two flashes: Out of paper or paper feed error
Replace the paper correctly 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.
See Paper Jams
Four flashes: Empty ink tank
If you press the RESUME/CANCEL button, it will continue printing with an empty ink tank. However, when printing is finished, replace the ink tank immediately. If you continue printing with an empty ink tank, it will be a cause of trouble.
See Replacing an Ink Tank
Six flashes: No print head installed
Install a print head.
Seven flashes: Defective print head
Contact a Canon service representative.
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.
Note
Canon recommends to call for service as soon as this error occurs. Once the waste ink tank becomes completely full, printing will no longer be possible.
POWER lamp flashes alternate green and orange:
An error that requires contacting a Canon service representative may have occurred.
Turn the printer off and unplug the printer from the power supply. Plug the printer back in and turn the printer back on.
If the problem remains, contact a Canon service representative.

Here are all the flashing explanations:

Two flashes: Out of paper or paper feed error

Reload the paper correctly and press the RESUME/CANCEL button.

Three flashes: Paper jam

If paper has jammed in the printer, clear the jam, reload the paper in the printer correctly and press the RESUME/CANCEL button.

See Paper Jams

Four flashes: Empty ink tank

If you press the RESUME/CANCEL button, it will continue printing with an empty ink tank. After printing is finished, replace the ink tank immediately. If you continue printing with an empty ink tank, it may cause damage to your printer.

Refer to your Quick Start Guide for instructions on how to replace an ink tank.

Five flashes: No print head installed/Defective print head

Install the print head. Also, ensure that the protective tape has been removed.

If reinstalling the print head does not solve the problem, replace it with a new one. Contact the Customer Care Center.

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 the Customer Care Center.

Read it all here.
Scroll about half the page, to:
WASTE TANK ALMOST FULL or FULL ERROR MESSAGE PROBLEMThere is explained how to get rid of the error message very easy, and how to clean the waste ink pad manually. The latter seems not to be necessary, though.