Cant send nor receive faxes - HP LaserJet 2840 Printer

Dear sir,kindly follow the below instructions
Instructions

1. Ensure that all cables are securely connected. First, make sure that the printer cable connecting your computer to your printer is connected securely. Then, make sure that the power cord is inserted into a wall outlet. Try your print job again after you have ensured that all cables are properly connected.
   

2. Clear a paper jam if your printer is not responding or you are receiving a "Paper Jam" error message on your printer. To clear a jam, first open the rear output door by pushing down on the two levers on each side of the door. Opening the rear door simply makes it easier to clear a jam. Open the top cover on the front of the printer by pressing the release button on the right side of the printer. Locate the paper jam and use two hands to gently remove the paper jam. Try your print, scan, fax or copy job again.
   

3. Clear stored or saved faxes if you are having trouble sending or receiving faxes. Old faxes may be stuck in the fax queue, which may be causing the printer to not respond. To remove stored faxes, press the "Menu" button on the printer and select "Fax Functions." Then select "Clear Saved Faxes." Wait for the queue to clear and try your fax job again.
   

4. Remove paper from the automatic document feeder (ADF) input tray if your scan job is coming out crooked. The ADF input tray can only hold up to 50 sheets at a time. If there are more than 50 sheets in the input tray, the output may appear skewed. Try your scan job again after removing the paper.
   

5. Adjust your computer monitor's display settings if your scanned image is not an accurate representation of the original image. This can be done in the "Control Panel" in Windows. Set the settings to the highest possible resolution and try your scan job again.
   

6. Perform a power cycle on your printer if the previous steps were unsuccessful. To do this, turn off your printer, then unplug it from the wall. Wait a few minutes and plug the printer back in. Try your print, scan, fax or copy job again.