When I try to print full colour photos the colour is off, there are lines and red streaks

Are the streaks evident when printing actual images? I was told by an experienced Xerox service tech that those solid-fill test pages can be misleading -- mine does the same but prints photos beautifully. I suggest printing some full page photos, check for the streaks. You've already done just about all you can.

If that lines are consistent with the red and blue and it does not appear during black and white print that means the cleaning blade in the affected color units need to be replaced

you need to make adjustments in the driver control panel color options, you may need service to calibrate the temperature, this can also be a result of poor quality PVC cards. Some card design software will allow you print parts of the card with black panel only which would eliminate this issue.

Had a similar problem. Tried lost of things. In my case, the streaks cleared up after I cleaned the toner drum.

The most common problem is the photo conductor unit. What ever color the line is change that unit. The Photoconductors are a customer repalcment item.

the colered pictures may be illegal to print like school pictures if you scan and then print them they will have a line threw them.

I asked the technician at Staples what he thought and he thought it was the ink cartridge. since I was using 3in1 cartridges and it was expensive to buy two; (1) Black with pale magenta and blue plus (2)red blue and yellow,we bought a new printer that uses one colour only cartidges so we can replace one colour at a time and also use a pale blue and pale magenta to get better reproductions. for a little more than double the price we bought an Hp printer Photosmart C7280 on sale with single cartridges. It will pay off, They are a fraction of the cost of 3in1 colours.

Check the dev unit for missing lines. Also clean the laser glass with the supplied cleaner pad - though if the problem were caused by toner on the lens, there would be gaps in ALL colours.

Check the dev units first. You can also do a stop test whilst a full colour test image is half way through printing and see if the lines are missing off the image on the PCU as well.

Put plain paper in the printer and try to clean the nozzles.

-Start->All Programs->Lexmark 5400 Series->Lexmark Solution Center->Maintenance->Clean to fix horizontal streaks.

Good luck!
Steve

Just replace the non genuine inks with proper Canon ones and then do about 4 full cleans, that should fix it. If not you will have to replace the printhead, which is usually caused by using non genuine ink. Good luck