Printer 3720 not copying

[Cookie55]

I am unable to copy from my hp desk jet 3720

[Kumar0307]

@Cookie55, Welcome to the HP Support Community!

• Do you get any errors or blinking lights?
• What happens when you make a copy? Do you get a blank sheet?
• Are you able to print from your computer to the printer?

For now, let us try these steps:

Reset the printer

1. With the printer turned on, disconnect the power cord from the rear of the printer.
2. Wait at least 60 seconds.
3. Reconnect the power cord to the rear of the printer.
4. Turn ON the printer, if it does not automatically turn on.
5. Wait until the printer is idle and silent before you proceed.

Note: HP recommends connecting the printer directly to a wall outlet rather than a surge protector or a power strip.

Update the printer firmware

Click here to download and install the latest printer firmware from your MAC.

Click here to know different methods of updating printer firmware.

Check the scanner bar functionality

Perform a visual test of the scanner mechanism to see if it is jammed.

1. Remove any original documents or photos from the scanner glass.
2. Lift the scanner lid slightly, and then press the Copy button or icon.

If the scanner light does not move or moves halfway or is not lit, the scanner mechanism is likely jammed/broken.

for more info, refer to - Resolving Copy Problems

Hope this helps! Keep me posted. 

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Have a great day!