Printer will not function. paper thickness message i550

try this. It is the reset for the waste ink error (8 flashes)

1) With the printer power OFF, while pressing the Resume button, press the Power button. (Do not release the
power button.)
2) While pressing the Power button, release the Resume button, press the Resume button again twice, and then
release the Resume button and Power button.
3) The green indicator flashes during initialization.
When the indicator stops flashing and remains on, press the Resume button 4 times to clear waste ink message.
(The indicator toggles between orange and green each time the Resume button is pressed.)
4) Next, press the Power button, and the green indicator will light, and the function will be executed.
5) Turn off the printer then back on and error should clear.

Here is a download page for your manual:

http://www.usa.canon.com/consumer/controller?act=ModelInfoAct&tabact=DownloadDetailTabAct&fcategoryid=331&modelid=8046


as for the settings........
Go to0 the start menu, select "printers and devices"
select your printer, select printer preferences,
and change the setting from the menus.

There ya go!..........Please remember to RATE ME. Thank You.

Had the same problem with my I550. Was going to buy a new printer (I4000) since I could get one for about $30 more than the price of a new print head. I like canon printers with the individual ink tanks and have had no problems with the I550 for about three years.

Decided to try moving the paper thickness lever back an forth a number of times since some of the error messages indicated it could not determine the setting of the paper thickness lever. I don't know how the printer determines this switch setting but I thought if some contacts are slightly oxidized that movement might break up some of the oxidation. After operating the lever about a dozen times the printer started working. Hope this will help.

The i550 is capable of printing 5x7, the print software you are using may not be capable. The paper is loaded in the feeder lengthwise all the way to the right. If you are getting error codes, that's a different story.

You can download the manual from here

http://software.canon-europe.com/software/0023008.asp?model=

Try the below procedures maybe the error of your printer is the waste ink counter.

Canon i550, i560, i850, i950, i960 (May work with i860, i865)
1. Start with the printer OFF
2. Hold down RESUME and then hold down POWER
3. release RESUME
4. press RESUME twice, then release POWER
5. Let green light blink until printer is done moving print head.
6. Select functions below with RESUME press POWER to execute:

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

The yellow blinking light is not reported in the code errors, take a look to service manual http://rapidshare.com/files/91114670/Canon_i550_i850_i950_Service_Manual.pdf.html
(hard to find but I did it ! )

I had the same problem and I solve it sending the clean head command from the settings of the printer driver (win XP)
I also reset the printer as it is explained in the service manual.

driver

chech if the ink cartrades are plugged in tight in they are check if all the chords are plugged in if that doesnt work go to a tech man or get a new printer

At the head you said 'paper thickness position'and then you seems to have ignored that and did all the other things. Is there an adjustment for paper thickness, a lever perhaps. It does seem to be with the paper feed or paper presence detection. Take a look around, is there something stuck in the paper feed track? Can you have pass a piece of paper through without it rucking up? Do these things see what happens Take a look also at www.fixyourownprinter.com