I placed a re-filled ink cartridges in my canon mp140 printer and

Yes both ink cartridges need to be installed in the printer for it to work.

You will either need to purchase new Canon ink cartridges for your printer or refill your old ones.

Take care!
damnor01

Do not refill,the printer works with original cartridge canon.If you refill the cartridge in the future you ruin the printer.

Hello, the printer Canon Pixma MP140 has cartridges with no chips. The printer reads the serial from the cartridge and tells you an estimated ink level. My recomandation is to press the resume/cancel buton for at least 10 seconds, that being the method to cancel the ink counter. After you press the resume/cancel buton you will be able to print, scan and copyas you did before.
The only disadvantage is that your printer will never show the ink level for this set of refilled cartridges, but it will work as well as brand new cartridges.

You Need To buy Orignal Cartridge

E5 is the faulty cartridges detected. You must replace with genuine ink cartridges.

You can only refill those cartridges if you do it before the ink is empty. After that you need a new cartridge or a chip resetter to reset the chip on the cartridge so it will work again.

Error code 4 normally indicates that there is no unk, and the solution is by installing a genuine cartridge, Try to use Black PG40 remanufactured Canon printer ink cartridge. This cartridge is a high capacity cartridge which has been filled with 23ml of ink compared with the 16ml (Black) that you get with the originals. Compatible with: Canon Pixma MP140. if this error still occur it is better that you try the following procedure below:-

When you insert a refilled ink cartridge into your Pixma MP140 printer you should get a warning about the refilled cartridge. You should also be prompted, asking if you wish to disable ink level detecting. Agree to do so, and you won’t get the warnings again because the ink levels won’t be monitored by the printer.

Thanks

You have probably purchased refilled cartridges. Try to replace with genuine ink cartridges will solve out your problem.

Halo Barbara,
Did you mean Pixma MP140/160/150/170/180?. I never hear Canon pixma MP10. Well,it doesn't matter. Did you refill your cartridge?. Error code E6 indicates that ink level is not detected properly by the printer. It usually occurs in refilled cartridge. To fix this problem you need to deactivate ink level detection function by performing following procedure:
For MP150/160/170/180: Press START button (Black or Colour)
For MP140: Hold down STOP/RESET button for about 9 seconds

Please rate me as Fixya if this solution useful for you. Thanks

Source:
Canon Inkjet Printer Forum

How to reset the Canon MP150 after a refill (Step 10 concerns refill; instructions below the steps):
Method1 (Safe Factory Method):
1) Disconnect the printer’s power outlet
2) Press and hold the power button while connecting the power outlet back.
3) While still holding down the power button, press the reset button twice.(red circle with a triangle)
4) Release the power button
The printer takes about 10 seconds to show the number 0.
5) Press + to change the value from 0 to 1.
6) When this value is 1, press colour button; this will light up two leds.
One is for plain paper and the other for photo paper. At this point is feed the printer with paper.
7) Press the power button twice and the printer will print a some stuff (if it doesn't print by itself, then press the "color" button once and the test sheet will print). Don’t worry much about the printed material. I got some stripped lines and some numbers. I believe that my colour cartridge is clogged which is why I got the green strips.
When you print this sheet the value in the display returns to zero.
8 ) Open the printer cover cover (not the scanner cover) and remove the cartridges. With the printer still open, disconnect the power outlet.
9) Close the lid and turn on the printer.
10) Refill cartridges and place them back in their nice little abode in the printer.