Print head problems 7 yellow lights 1 green light, how do I fix

Purchase the print head from ebay approx $35.00, install[simple drop in installation], then you will be up and running.

This is a very bad error. It means that the printhead needs servicing and may need to be repaired. There is no easy fix. Sorry.

Hi there
This is only a try it may do it but I not know,
Start with the printer OFF

1. Hold down RESUME and then hold down POWER
2. Release RESUME
3. Press RESUME twice, then release POWER
4. Let green light blink until printer is done futzing

Select function with RESUME press POWER to execute:
presses - light color - function

Number of presses - light color - function
0 presses - green - Test print (or exit service mode on i850)
1 press - orange - EEPROM info print (plus grid nozzle diagnostic on i960)
2 presses - green - EEPROM initialize
3 presses - orange - Reset waste ink counter

Hi this is only a try it may work
Start with the printer OFF

1. Hold down RESUME and then hold down POWER
2. Release RESUME
3. Press RESUME twice, then release POWER
4. Let green light blink until printer is done futzing

Select function with RESUME press POWER to execute:
presses - light color - function

Number of presses - light color - function
0 presses - green - Test print (or exit service mode on i960)
1 press - orange - EEPROM info print (plus grid nozzle diagnostic on i960)
2 presses - green - EEPROM initialize
3 presses - orange - Reset waste ink counter

Start with the printer OFF

1. Hold down RESUME and then hold down POWER
2. Release RESUME
3. Press RESUME twice, then release POWER
4. Let green light blink until printer is done futzing

Select function with RESUME press POWER to execute:
presses - light color - function

Number of presses - light color - function
0 presses - green - Test print (or exit service mode on i960)
1 press - orange - EEPROM info print (plus grid nozzle diagnostic on i850)
2 presses - green - EEPROM initialize
3 presses - orange - Reset waste ink counter

7 times means your waste ink absorber is full, time to let a shop replace the absorbers and reset the counter to clear the error.

hi welcome to fixya!
I believe there is no print head failure happening. I experience that one time, it only needs a new ink cartridge. Be sure to replace the right color!
have a nice day!

That's a shop repair, 7 yellows means the ink absorbers are full and need to be changed before ink leaks all over. After changing you need to enter service mode and reset the counter to clear the error..

Start with the printer OFF

1. Hold down RESUME and then hold down POWER
2. Release RESUME
3. Press RESUME twice, then release POWER
4. Let green light blink until printer is done futzing

Select function with RESUME press POWER to execute:
presses - light color - function

Number of presses - light color - function
0 presses - green - Test print (or exit service mode on i960)
1 press - orange - EEPROM info print (plus grid nozzle diagnostic on i850)
2 presses - green - EEPROM initialize
3 presses - orange - Reset waste ink counter

Go to the Canon Web site http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=SupportDetailTabAct&fcategoryid=232&modelid=8047 (may have to copy and paste into browser. I believe it is either a Print head (7 flashes) which will require repair/replacement of print head - or - a waste ink error that requires a reset. There are other posts on this site that explain how to get the printer into service mode to reset.