I have a canon iP1980.. it appears that ink absorber is full contact your service center..

the ink absorber is full contact the service center

You can't. Here is what Canon says on their website:

Ink Absorber Replacement Options This printer has an ink absorber that takes in ink during the printing and print head cleaning processes. The cleaning process is necessary in order to keep the print head nozzles from becoming clogged. Over the life of the printer, the amount of ink that the ink absorber has absorbed is calculated by the printer. Eventually, after substantial use, the printer will enter an error condition when the ink absorber is nearly full. At this point, printing is still possible by pressing the <Resume> button on the printer. To protect the printer from damage, you will not be able to print at all once the ink absorber is full.
Canon recommends having the printer serviced before the absorber becomes full. We are aware that there are many "do-it-yourself" Web sites that offer instructions for making this repair. Replacing the ink absorber is a complicated and potentially messy procedure. Even if the ink absorber is successfully changed, the ink absorber counter must be reset. Be aware that if you attempt this procedure, it is at your own risk.
If you feel your product might require service, Canon has excellent service options and we are eager to provide any assistance you may need. Click the link below to locate an authorized service facility and obtain further instructions.

Inkjet printer has waste ink absorber inside, sponge alike. The function of waste ink absorber is to localize and keep waste ink safe inside the printer and does not harm the electrical parts.
Waste ink is produced from print head cleaning process and borderless printing. When capacity of the ink absorber raise to about 90% then warning message appears.
You need to bring your printer to the nearest service center to get waste ink absorber replaced.

Source:
Printer Clinic: Printer Tips,tricks,troubleshooting
E-manualshop: Online source of service manual

Heres a canon link for finding your nearest service centre http://www.canon-europe.com/Support/Consumer_Products/services_locator/index.aspx However, you may want to review the following links - which explain how to do the cleaning yourself
Theres a number of solutions on this link http://www.fixya.com/support/t181480-waste_ink_absorber_canon_ip_1600
This is not your exact model - but maybe useful to watch

• http://www.youtube.com/watch?v=VVpjqBr7KjU
• http://www.youtube.com/watch?v=4IrBdw7el2E

Theres some instructions on this post on how to clean http://www.fixyourownprinter.com/forums/printer/41279 But Beware of causing any damage

Hi there

You can try this may help you.
These are the steps:
1. Turn On iP1980
2. Push and Hold Resume button about 2 minutes
3. Release Resume button
4. Printer back to normal again

To get Permanent , follow the steps here :
Manual Resetter canon Pixma iP1980/1900 Download

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

you can open the printer case and look underneth the the ink cartridge ther are 2 ink absorbent foem remove it and wash it until ink remove from the foem make it dry and put it back again.

My inkjet printer no. IP1980 is ink absorber is full. Please help me.

Inkjet printers have a fibrous pad inside them that collects the waste ink from cleaning the print head. Over time, this pad fills up with ink and can no longer hold any more. When this occurs, the printer indicates a "waste ink full" error.

Replacing the waste ink absorption pads is something an authorized canon service facility can take care of for you.

http://indoresetter.blogspot.com/2008/12/resetter-printer-pixma-ip1980.html


go to this link and download resetter......

This is what the manual says: Ink used for cleaning is absorbed in a waste ink absorber placed in the machine. Press [OK] to cancel the error so that you can continue printing. Once the waste ink absorber becomes completely full, printing cannot be done until the waste ink absorber is replaced.
Canon recommends to contact a Canon service representative as soon as possible.