My hp 4500 printer is nit orinting clearly - HP Office Jet 4500 Wireless All-in-one Printer Fax Copy

There still must be a small piece or shred of paper in the sensor field.

Here is a video from HP explaining the process///


Replacing Cartridge HP Envy 4500 All in One Printer

its located on the backside of the printer behind an access door. You can find a very good video from HP on clearing paper jams at YouTube. Here's the link:

https://youtu.be/lS1441RmrKY

Fixing Paper Jam HP Officejet 4500 Wireless All in One G510n

Resetting the Printer to Factory Default

Settings

Resetting the printer to factory default settings can be useful when

you are troubleshooting with the printer.

CAUTION Resetting factory defaults clears the page buffer, removes downloaded

fonts and macros, and returns all print menu settings to factory defaults.

To reset the printer to factory default settings

1 Press MENU until RESETS MENU displays.

2 Press ITEM until RESTORE FACTORY SETTINGS displays.

3 Press SELECT until the following message appears:

RESTORING

FACTORY SETTINGS

This message displays until the printer has completed the
initialization

I've never HAD nor FIXED your model, but have fixed other HPs with different problems before. Re: your hp envy 4500 model printer: I researched a little, finding this:
great product, January 12, 2014
Love the printer and it's performing great. I was thinking of giving this nice printer four 1/2 stars, because the direction should have emphasized more clearly that the paper holding tray must be pushed all the way back in to the printer not just the paper. So when you think the tray is all the way in give it another push. because one can not continue with any of the installations. It would not be fair to the product itself, to write negatively.
Found the above here: Page 4: http://www.amazon.com/HP-Envy-4500-Wireless-Printer/product-reviews/B00CIDQ470?pageNumber=4 or read more here about the paper tray:
http://h30434.www3.hp.com/t5/Printer-All-in-One-Install-Setup/HOW-TO-PULL-OUT-THE-PAPER-TRAY-ON-ENVY-e4500/td-p/3071717 It looks like the Paper Tray is persnickety on this model... Hope this leads you to a solution. {P.S. Recently when my almost 5 yr. old HP printer died-for good- I bought a "Brother" because I found they give you toll-free Tech Service "for the life of the printer"... and that's what I like!}

You may want to post to Printers Category for a Printer expert.

http://h10025.www1.hp.com/ewfrf/wc/manualCategory?cc=us&lc=en&dlc=en&document=&product=3418705

down load manual..

Go to www.hp.com and follow the path to your printer model to obtain a driver download. Install it and go!

Please watch this video, and follow the same instructions. Hp printer clearing paper jam Good luck Thanks for using FixYa.

Here is your problem. Hope that this helps you.

54.1 PRINTER ERROR
Description:
Indicates that an internal power failure has
occurred.
Action:
1. Turn the printer off, and then turn the printer
back on.
2. Replace the high-voltage power supply.
3. Check the fuser to ensure jams have not
occurred.
Caution When clearing jams, the
thermistor can be damaged
causing this error.
4. Make sure there is not a fluctuation in the
power supply to the printer. Check that the
electrical specifications (see Chapter 1) are
met.
5. Replace the low-voltage power supply.