Have an iP90, but the color ink won't print. - Canon PIXMA iP90 Mobile Printer

Hi there,
When Printing Becomes Faint or Color are Incorrect, the Print Head Nozzles are probably clogged.
Follow the procedure below to clean the nozzles.
Step 1 : Printing the Nozzle Check Pattern.
Print the Nozzle Check pattern to determine whether the ink ejects properly from the Print Head Nozzles.
a) Using RESUME/CANCEL button.
I) Ensure that the printer is turned on, and then load a sheet of Letter Paper.
ii) Hold down the RESUME/CANCEL button until the POWER lamp flashes twice, and then release it immediately.

b) Windows
i) With the printer on, load a sheet of Letter-sized plain paper in the printer.
ii) Open the Printer Properties.
iii) Print the Nozzle Check Pattern.
Click the Maintenance Option from the Menu.Then click Nozzle Check from the pop-up menu. Then click Print Check Pattern.
iv) When the confirmation message is displayed, click OK.
v) Confirm the nozzle check pattern.

Examine the Print Nozzle.

Step 2 : Cleaning the Print Head.
a) Cleaning the Print head using RESUME/CANCEL button.
i) Ensure that the printer is on.
ii) Hold down the RESUME/CANCEL button until the POWER lamop flashes once, and then release it.
b) If you pressed the Cleaning button on the Examining the Nozzle.
Check Pattern screen displayed after the nozzle check patter was printed, start the Print Head cleaning procedure.
i) Ensure tha that the printer is on.
ii) Open the Printer Properties dialog box.
3) Start Print Head Cleaning,
- Click the Maintenance tab.
- Click Cleaning.
- Select the Print Head to be cleaned, and then click Execute.
iv) When the confirmation message is displayed, click OK.
Print Head cleaning starts when the POWER lamp starts blinking,
Important : Do not start any other operations until the Print Head Cleaning finishes. This takes about 60 seconds.
4) Check the Print Head condition.
i) Click the Print Check Pattern in the nozzle Check dialog appeared after cleaning are done. When the confirmation message is displayed, click OK. A nozzle pattern will be printed. Do not perform any operation until printing is completed.
ii) Observe the printed nozzle check pattern to check the Print Head condition.
iii) If the problem persists after you perforned Print Head normal cleaning 3 times, execute Print Head deep cleaning.

Step 4 : Print Head Deep Cleaning.
If print quality does not improve by standard Print Head cleaning, try Print Head deep cleaning, which is a more powerful process and comsumes more ink.

1) Ensure that the printer is turned on.
2) Open the Printer properties dialog box.
3) Start Print Head Deep Cleaning.
i) Click the Maintenance tab.
ii) Click Deep Cleaning.
iii) Select the Print Head to be cleaned, and then click Execute.
iv) When confirmation message is displayed, click OK. Print Head deep cleaning starts when the POWER lamp starts blinking,
Important : Do not perform any other operations until the Print Head deep cleaning is completed ( about 2-3 minutes).
4) Check the Print Head condition
i) Print a nozzle check pattern to check the Print Head condition.
ii) If the problem persists, perform step 3 again.
iii) If the problem persists, the printer may have run out of ink.
Replace the ink tank.
iv) If the problem persists, the Printer Head may be damaged. Contact your dealer or Canon Customer Care Center.

Hope this helps.
Have a good day.