my wf-2960 says 'paper jam' but i've looked everywhere and there's no paper stuck, what's going on?

Diagnosis

This "ghost jam" on the Epson Workforce WF-2960 typically occurs because the printer's internal optical sensors are detecting an obstruction that isn't a full sheet of paper. In most cases, a small fragment of paper—sometimes as small as 2mm—has torn off during a previous jam and is resting directly on the sensor arm or blocking the infrared beam. Because these sensors are located deep within the chassis, the paper is invisible when you simply glance into the tray. Another common cause is "paper dust" or adhesive residue from labels/envelopes that has coated the sensor lens, creating a false positive. If the printer's internal timing is off—meaning the sensor didn't trigger exactly when the printer expected the paper to reach that point—the firmware triggers a "Paper Jam" error as a safety precaution to prevent the print head from colliding with a nonexistent obstruction. You can confirm this is a sensor issue if the error persists even after you have physically cleared the entire path from the rear feed to the output tray.

How to Fix It

Follow these precise steps to clear the blind spots and reset the sensor logic:

1. Power down the printer completely and unplug the AC power cord from the wall. Wait 60 seconds to allow the capacitors to discharge.
2. Remove the paper cassette from the front of the machine. Reach inside the cassette slot with a high-lumen flashlight and check for any small scraps of paper or foreign objects (like paperclips or staples) that may have fallen in.
3. Locate the rear access door. This is the plastic panel on the back of the unit. Open it fully. Shine your light directly into the feed throat. Use a pair of fine-tipped tweezers to gently probe the area around the rubber pick-up rollers. Look specifically for tiny white or colored slivers of paper tucked into the crevices of the plastic frame.
4. Manually rotate the white feed rollers. Gently turn them in the direction of the paper flow. If they feel "mushy" or don't snap back, there is likely a hidden scrap of paper wrapped around the axle.
5. Open the scanner unit by lifting the entire top assembly. Carefully move the print head carriage (the part that holds the ink) from one side to the other by hand. Check the far left and far right "parking" areas for any accumulated paper dust or torn fragments that might be triggering the carriage sensor.
6. Close all covers, plug the unit back in, and perform a "Hard Reset": Hold the power button for 10 seconds while the unit is unplugged, then plug it back in and power on.

If That Didn't Work

• Clean the Optical Sensors: Use a can of compressed air to blow out the rear feed path and the carriage rail. Often, a clump of paper dust settles on the sensor eye; a targeted blast of air can dislodge this without needing to disassemble the chassis.
• Reset the Paper Settings: Navigate to the printer's onboard LCD menu: Settings > General Settings > Printer Settings > Paper Source Settings. Ensure the paper size matches exactly what is loaded in the tray. A mismatch between the "Letter" setting and "A4" paper can occasionally trigger a false jam error due to the timing of the paper exit sensor.
• Check the Encoder Strip: Look for a thin, clear plastic strip that runs horizontally across the width of the printer behind the print head. If this strip is smudged with ink or grease, the printer loses track of the print head position, which the software often misinterprets as a paper jam. Gently wipe it with a lint-free cloth and a tiny drop of isopropyl alcohol.
• Perform a Factory Reset: Go to Settings > Maintenance > Restore Default Settings. This clears the internal error log and forces the printer to re-initialize all sensors from scratch.

Heads Up

• Never use a vacuum cleaner inside the printer; the static electricity generated by the nozzle can fry the logic board or the print head circuitry.
• Avoid using "cheap" or ultra-thin multipurpose paper (below 20lb/75gsm), as these are prone to micro-tearing, which creates the very slivers that cause these ghost jams.
• When removing paper from a real jam, always pull in the direction of the paper path (forward). Pulling paper backward can bend the delicate sensor arms, leading to permanent "false jam" errors.
• Keep the printer in a low-humidity environment. High humidity causes paper to curl, which increases the likelihood of the sheets hitting the sensors at an angle and triggering an error.