Np7130 was working then stopped no copy the page comes ouit wrong side is white and unless door for side is open jams the paper

check if the paper size not match with that sitting in printer sitting and the aplication you use

Open back cover -- paper sheet should be on roll accessible from back, once cover is removed

This is the infamous exit sensor problem. Watch this video on YouTube: 5fJHykzkfww

You can try to clean it but that probably will not work. Go to eBay and get the part for about $10. The video shows you how to make the repair in about 15 minutes.

You can see the feed roller by opening the door on the lower right side. The copier will try to print with this door open. Steven 805-520-3003

THe main problems are toner spill form drom/dev units ..the transfer on the right hand door will have to be emptied every few months. the paper tray paper stops need to be checked as they come out of place and cause paper jams if not set in place..cahrge rollers can be troublesome if not cleaned every coulple of months and may cause dirty image at the sides or lines on copies..dust on laser **** glass can cause faint on sides of copies.. the fuser stripper fingers tat guide the paper need to be checked for toner under the points to stop paper jams in fuser and the lower guide plate entrance to the fuser needs to be cleaned off every now and then to stop crinklin of paper...apart from that good machine

1-you need to determine if the two are part of the same problem

If the jamming occured first with no signs of copy quality issues then, it depends on where it's jamming. Locate the 1st jammed paper, the one that is furthest towards the exit. this stops all other paper after it. for example if there are papers in the fuser -by the drum and coming out if the tray the problem is most likely in the fuser area. Are the papers being crumbled? or just stop at that location?

2-the half dark copies could be a couple of things
a) the seperation unit is going bad and making the copies rise up against the drum
b)does the lamp that come on to scan the original stay on the whole lenght of the paper or does it turn off half way down the page? if yes the cable that connects to the lamp is probably broken and not making contact at the half way point as it is scanning.

Most likely when you make a copy you don't see the light scanning the paper, you can try this with the lid open to make sure. the Sacnning lamp is blown, need to replace

Clearing paper jams Paper jams can occur for a variety of reasons but are usually paper related. Follow the steps below to clear the paper jam:

1. Turn off the all-in-one and unplug the power cord. With the power off, the paper feed rollers will turn.
2. Open the rear access door of the all-in-one by pressing in on the left side of the access door and then pulling it toward you. NOTE: All paper jams must be removed by pulling the paper out the back of the all-in-one using the rear access door. Pulling the paper out the front of the all-in-one rotates the paper feed rollers in the wrong direction and can lead to additional problems. Figure 1: Rear access door Inspect the pressure rollers on the rear access door and verify that they are clean and turn freely. Clean the rollers if needed with a soft towel lightly moistened with water. If the rollers do not turn freely, replace the rear access door.
   • If under warranty, contact HP to obtain a replacement part.
   • Click How to buy on this page to order replacement parts.
3. From the rear access door opening, gently pull the jammed paper free.
4. Remove the remaining paper from the paper supply tray. Discard any paper that is damaged or crumpled and then re-stack and reload the paper into the paper supply tray. Do not continue to push the paper in after some resistance is felt. If the paper is pushed in too far, more than one page will feed into the all-in-one at a time.
5. Reattach the rear access door by inserting the two pins on the right of the door into the holes for them (as shown in Figure 3 below) and then pressing in gently but firmly on the left side. Figure 2: Inserting the rear access door guide pins into the holes
6. Reconnect the power cord to the unit and turn the unit on.

hi im jules_09,you should not use compatible consumables for the copier sometime np7130 copier are nasty specially with opc drum,if the copy is blnk the problem is in the high voltage unit or in the transfer unit and drum charge unit you might have the wrong process replacing the drum.re install the drum then try it again .

Print a self-test page from the unit to verify that it is working correctly. On the unit front panel, press Setup, press 1, and then press 5. CAUTION: Jammed paper must be removed using the rear access door with the power cord disconnected to avoid mechanical damage. Do not remove jammed paper from the front of the unit. Turn off the HP product and turn it around so the back of the unit faces you. Disconnect the power cord from the back of the all-in-one. The power cord must be disconnected to allow the paper feed rollers to turn freely. Locate and open the rear access door by pressing in on the left side tab and then pulling the door toward you. Figure 2: Removing the rear access door Inspect the pressure rollers on the rear access door and verify that they are clean and turn freely. Clean the rollers if needed with a soft towel lightly moistened with water. If the rollers do not turn freely, replace the rear access door. Click How to Buy on this page to order replacement parts. From the rear access door opening, remove the jammed paper. Remove the remaining paper from the paper supply tray. Discard any paper that is damaged or crumpled and then re-stack and reload the paper into the paper supply tray. Reinstall the rear access door. Reconnect the power cord to the unit and turn the unit on. Ray