Indicates paper jammed but it is not jammed - HP PSC 1610 All-In-One InkJet Printer

Please try to clean the paper feed rollers.

Device error An internal error occurred in the device. Press (Select) to resume the job. - Door open The printer door is open. The door must be closed before printing can continue. - Engine comm. error The device experienced an internal communication error. This is a warning message only. Job output might be affected. - Invalid driver You are using the incorrect printer driver. Reselect the printer driver appropriate for your device. - Invalid entry Invalid data or response. Correct the entry. - Jam in Cartridge area A paper jam has occurred in the print path. Open the door and clear the jam. Then press the (Select) button on the control panel - Jam in Output bin A paper jam has occurred in the output area. Clear the jam, and then press the (Select) button on the control panel. - Jam in print paper path. A paper jam has occurred in the print path. Open the door and clear the jam. Then press the (Select) button on the control panel. - Jam in tray 2 A paper jam has occurred in Tray 2. Clear the jam, and then press the (Select) button on the control panel. - Jam in tray 3 A paper jam has occurred in Tray 3. Clear the jam, and then press the (Select) button on the control panel - Load paper The HP Color LaserJet 1600 printer is out of paper. Please load specified paper type into the tray indicated. - Load Tray X [TYPE] [SIZE] The printer is processing job, but the tray indicated is empty. Please load specified paper type and size into the tray indicated. - Manual feed The printer is waiting for paper in the tray indicated Load the paper as indicated. - Memory is low The device memory has been almost completely filled. Allow the device to finish the job, or press (Select) to cancel the job. Break the job into smaller jobs that contain fewer pages. - Misprint The printed pages have been incorrectly placed on the paper. To continue, press the (Select) button on the control panel.

Paper Jam clearing: copy and paste the link in your web browser...I used to work with these printer's..when they work great, when they don't, not so great..

https://www.manualslib.com/manual/949165/Hp-Laserjet-5000.html?page=84

Clearing Paper Jams If the printer's control panel displays a paper jam message, look for paper in the locations indicated in Figure 22, then see the procedure for clearing the paper jam. You might need to look for paper in other locations than indicated in the paper jam message. If the location of the paper jam is not obvious, look first in the top cover area.When clearing paper jams, be very careful not to tear the paper. If a small piece of paper is left in the printer, it could cause additional jams. If paper jams are a recurring problem, see page 78.(A paper jam message might also display if the rear door is open.)

The top cover of the printer must be opened and then closed to clear a paper jam message.Paper jams can occur at the following locations:Output areas(top and rear)Go to page 75.

Loose toner might remain in the printer after a paper jam, but thetoner should clear after a few sheets are printed.

Have you tried shutting it down completely? Also, double check to see if the inside of the printer is completely clean. I had the paper jam indicator showing because there a small piece of paper stuck inside. Also, found a helpful manual for a similar printer, you can see it here - Brother HL-2240 manual

If you get a paper jam, the Paper Jam indicator light promptsyou to clear the paper path. If the paper has just started to feed from thepaper feeder when the jam occurs, pull the paper straight up out of the paper feeder. Open and close the printer cover toresume printing. If the paper jam occurs inside the printer, remove the paper from the output bin. Turn the printeroff, then on. If this doesn't clear the jam, open the printer cover.Remove the print cartridge and cover it.For additional assistance, please contactLexmark Technical Support

The printer has several switches in it to detect paper jams. When paper feeds in it trips the first one indicating that paper is present. Another switch further along the feed path indicates that the paper is feeding okay.
Your problem can be a jammed switch (loose scrap of paper), a broken switch, a switch disconnected from the controller board or a possible bad controller board.
One thing you didn't mention was does it respond the same with paper loaded? It might be that the first switch is looking for some and not finding it, so it is programmed to assume a jam.

You didn't state where the jam is indicated. If it's indicating a paper pickup jam there are levers toward the back of the cassette that could get hung up.If it's a fuser jam the outlet lever on the fuser unit.If it's indicated in the transfer drum area a bad transfer sheet can give a false jam indication sensing paper on the drum.

check all roller

Usually a printer doesn't lie when it indicates a paper jam, if you have checked as thoroughly as possible and no paper can be found. It is possible that the paper just isn't feeding and a printer will sometimes indicate a paper jam when paper doesn't feed. But if this isn't the case and a jam is indicated as soon as you turn the printer on, one of the plastic jam sensing actuators may be broken or hung up.

Hi

Replace or clean paper eject sensor and chek

Dileep