Why doesCamera refuse to recognize any memory card that is inserted?

If you're having trouble getting the pictures off your Disney digital imagine camera and your computer won't recognize the device, there are a few things you can try:
1. Check the USB connection: Make sure that the USB cable is properly connected to both the camera and the computer. Try using a different USB cable or port to see if that helps.
2. Install the drivers: Check the manufacturer's website to see if there are any drivers available for your camera. Download and install the drivers, then try connecting the camera again.
3. Use a memory card reader: If your camera uses a memory card to store photos, you may be able to bypass the USB connection by using a memory card reader. Insert the memory card into the reader, then connect the reader to your computer.
4. Try different software: If the default Windows Explorer is not recognizing the device, try using a different photo management software, such as Adobe Lightroom, Google Photos, or Microsoft Photos, to import the photos.
5. Contact the manufacturer: If none of these steps work, contact the manufacturer's customer support for further assistance. They may have additional troubleshooting steps or be able to provide a solution.
It's worth noting that Disney digital imagine cameras are relatively old, so some compatibility issues with modern computers may be expected. If you're unable to get the pictures off the camera using these steps, you may need to seek out a specialized service or device to retrieve the photos.

ALTERNATE WAY TO TRANSFER PHOTOS TO COMPUTER
If your photos are stored on the memory card, then remove the memory card from the camera and insert it into an USB memory card reader. Connect this USB memory card reader and memory card into the USB port of your working computer. Your computer will see this as an USB Mass Storage Device or an external storage device; you can then open the folder on the memory card and copy the photos to your computer. Memory card reader is a handy device and is inexpensive. You can copy photos from other cameras and you can also download photos off your memory card to someone else's computer without the need of installing any programs.

ALTERNATE WAY TO TRANSFER PHOTOS TO COMPUTER
If your photos are stored on the memory card, then remove the memory card from the camera and insert it into an USB memory card reader. Connect this USB memory card reader and memory card into the USB port of your working computer. Your computer will see this as an USB Mass Storage Device or an external storage device; you can then open the folder on the memory card and copy the photos to your computer. Memory card reader is a handy device and is inexpensive. You can copy photos from other cameras and you can also download photos off your memory card to someone else's computer without the need of installing any programs.

ALTERNATE WAY TO TRANSFER PHOTOS TO COMPUTER
If your photos are stored on the memory card, then remove the memory card from the camera and insert it into an USB memory card reader. Connect this USB memory card reader and memory card into the USB port of your working computer. Your computer will see this as an USB Mass Storage Device or an external storage device; you can then open the folder on the memory card and copy the photos to your computer. Memory card reader is a handy device and is inexpensive. You can copy photos from other cameras and you can also download photos off your memory card to someone else's computer without the need of installing any programs.

When you lost photos due to deletion, format, virus corruption or other reasons, the first thing you need to do is:
• Stop using the memory card to take new photos
• Don't transfer new data into the card
• Don't try to read the card when it turns to be inaccessible
• Keep your card well and don't make any physical damage

Maybe you can try uFlysoft Data Recovery for Mac, it can recover empty trash on Mac only in three steps:
Step 1. Launch the software to scan the device where your files deleted
Step 2: Preview the scan result files and make mark if it is the one you find
Step 3: Recover files

Recover Data from Memory Card on Mac with Ease

Was your Lexmark P315 printer able to detect this particular memory card before? Try to re-insert the card - it could be due to a slight communication problem. Have you tried inserting a different known working compatible memory card into the printer's card slot? This could be due to faulty memory card.
Also, please refer to Memory Cards Supported by the Lexmark P315 Photo Jetprinter.

when i put my micro sd into my sci phone and then go to documents it is not there it says just the phone memory. how do i format the memory card to my phone or even to get it to work ?

please check it with another battery

You may try some photo recovery software to rescue the files on your digital camera sd card, here are some for your options.

Photo Recovery (for Windows)
Photo Recovery for Mac

Be careful: Before your pictures are recovered, do not attempt to save more files to the card in case the original files(your pictures) are overwritten.

try using a different card reader. had previous issues with a specific card reader not recognizing my memory card, and using a different card reader worked for me.