My PictureMate printer is printing with a discoloration border on each end of the print; blue on the left and pink on the right. I have used photos downloaded from a SD card and also sample pictures from "My Pictures" furnished with the operating system of my PC.

Sounds like Blocked Nozzle heads assuming its making the correct noises when press "print" If Not
First ensure connected correctly:
Control panel / Devices and printers / select printer ( make sure its the default printer) right click on printer properties : Print test page.
Next repeat but right click Printing Preferences / maintenance / Nozzle check then Head cleaning.
This generally works with printers used fairly regularly.
Where printers left for long periods may have to resort to removing offending cartridge/s and using a syringe with warm water and flexible tubing to clear blocked print head (gently !) Kitchen towel underneath the print head will show when ink / water is clear. Usually have to replace with new cartridges :Then use nozzle check.

Maybe you set printer options to print color as black.

Inkjet printers need to be used frequently to prevent inkdrying out in the print head nozzles.
If the print head cleaning maintenance routine does not clear the blockages,then print head needs replacing, but it may be expensive.
It may be more cost effective to buy a later model and better printer thanreplace the print head.

Hi!
You need to run a Head Cleaning cycle so printer can get rid of the old ink from your previous cartridge. Try running it from maintenance for at least twice or try printing pictures in between cleaning cycles.
Hope this helps.

On the printer, hit the Menu button, and then the Maintenance Menu. Run the print test, and then hit "NO" when it asks you if the design is correct (even if it is.) This will send the machine to an automatic self-cleaning which ended up solving my "printing in pink" issue.

Try to clean print head and try printing after 2-3 print head cleaning

Many times head cleaning will throw much ink away. 1 time about 10% of ink. After meny times head cleaning, ink will out, and need replacement. May be after head cleaning nozzle is ok, but after replacement, printer do ink charge. It may be distrub the flow of ink at head. Is the cartridge new?. Use CISS for continuity printing.

border cannot print bottom side

but you know you can print if you can do it

margin up to 1.29 of bottom that simple

have you clean the cartridge

Tray cleaning the heads a few times