Epson “Paper Jam D1” — rear feed jam sensor stuck (clear & reset)

Joe B.

Reviewed for technical accuracy

Specialities: Epson printers, Paper jams, Rear feed issues, Sensors & rollers, Windows/macOS printing

Fix Epson Paper Jam D1 — rear cover D1 / rear feed jam sensor stuck, false jam, no paper

Technician

Hey! Let’s sort out this Epson “Paper Jam D1” message and the rear feed jam sensor stuck problem.
I’ll walk you through how to clear any real jam in rear cover 1 (D1) / rear manual feed, then how to reset the tiny jam sensor flag so the error disappears even when there’s no paper stuck.
First, tell me: on your Epson (EcoTank / WorkForce / Expression), does the display specifically show “Paper Jam D1” or “Rear cover open / Paper jam in rear cover”? And have you already pulled paper from the rear paper feed slot or only from the front?

Customer

It says Paper Jam D1. I opened the back, pulled one jammed page, nothing visible now. But the Epson still thinks there’s a jam in the rear feed. It won’t clear, keeps looping the same D1 error.

Technician

Got it — classic scenario.
On many Epson models, “Paper Jam D1” means the printer thinks there’s paper or an obstruction in the rear cover / rear paper feed path. Even a tiny scrap of paper or a stuck sensor lever can hold the rear feed jam sensor in the “jammed” position.
Our plan:
1) Safely re-check the D1 rear cover, duplexer, and rear manual feed slot for hidden scraps.
2) Inspect and gently move the rear feed sensor flag (the small plastic arm) so it’s not stuck.
3) Clean the rear feed rollers so they grab paper correctly.
4) Run a proper reset so the Epson Paper Jam D1 alert clears and doesn’t come back after a few pages.

Customer

I don’t see any scraps, but maybe I’m missing something. Where exactly is that rear jam sensor and how do I check it without breaking anything?

Technician

Perfect question. Let’s do it step-by-step — this applies to most Epson EcoTank, WorkForce, and Expression models with a D1 rear cover or rear feed slot.

Step 1 — Power down safely
1) Cancel any print job.
2) Power the Epson off and unplug it (very important before touching the rear feed area).

Step 2 — Open rear cover D1 and duplexer
1) Open rear cover 1 (D1) fully until it clicks.
2) If your model has a second rear cover or duplex unit (D2), pull it out.
3) With a flashlight, check:
  • Along the rear paper feed path where sheets enter.
  • Between rollers and guides for tiny torn corners, labels, or thick inked paper.
Gently pull any jammed paper in the direction of normal paper feed. Do not yank backwards or use metal tools — that can bend the sensor or damage rollers.

Step 3 — Check the rear jam sensor flag
Close to the center or side of the D1 opening, you’ll see a thin black or dark grey plastic tab that moves when paper passes. That’s your rear feed jam sensor arm.
• Very gently nudge it back and forth — it should move freely and spring back.
• If it’s stuck pushed down, crooked, or wedged under a roller, the printer will show a Paper Jam D1 or “paper remains inside” even when empty.
• If you see a scrap trapped around this arm, pull the scrap out carefully; don’t force the arm.

Customer

I found a tiny bit of paper near a small black tab and removed it. The tab was stiff, now it moves a bit. But when I power back on, I still get the D1 jam message.

Technician

Nice catch — that tiny piece is usually the culprit. Let’s finish the job so the rear feed jam sensor fully releases and the Paper Jam D1 alert resets.

Step 4 — Clean rear feed rollers & path
1) With the printer still unplugged, lightly press the rear feed rollers with a lint-free cloth slightly dampened with water or isopropyl alcohol.
2) Rotate the rollers (by hand if accessible) so you clean the full surface. This helps prevent repeat rear paper feed jams and slipping.

Step 5 — Proper power/reset sequence
1) Close D2 (if present), then close D1 rear cover firmly until you feel it latch.
2) Plug the printer back in, power it on.
3) If prompted, follow any on-screen “Clear paper jam” or “Check rear cover” steps once more.
4) Load 1–2 sheets in the rear paper feed slot correctly and print a test page.
If the sensor flag is fully free and the cover is seated, the Epson Paper Jam D1 error should disappear.

Customer

It still complains. There is definitely no paper now. Could the D1 jam sensor be stuck or misread even when it looks okay?

Technician

Yes — sometimes you get a false Paper Jam D1 because the rear feed sensor arm doesn’t fully return or dust is blocking the optical sensor.

Try this:
• With power off, open D1 again and gently move the sensor flag through its full range. It should not grind, scrape, or stay down.
• Blow out the area with clean, dry air (not canned air too close) or use a soft brush to remove dust around the sensor window.
• Confirm the rear cover hinges aren’t cracked and the cover fully presses its switch when closed — a misaligned cover can mimic a D1 jam.

If the arm wiggles loosely with no spring-back, or plastic guides are bent, the sensor may be mechanically damaged. The error will persist until that’s corrected — that’s when it’s worth chatting with a technician for repair options instead of guessing.

Customer

After brushing it and closing everything firmly, the D1 message finally cleared. Any tips to stop rear feed paper jams from coming back?

Technician

Great — that means the rear feed jam sensor is reading correctly again.

To prevent future Epson rear paper feed jams and D1 errors:
• Use flat, non-curled paper within the supported weight for the rear manual feed slot.
• Fan the stack; don’t overload — many D1 jams are from too many sheets or glossy media stacked wrong.
• Adjust rear feed guides snugly so paper enters straight (helps avoid skew and jams right at D1).
• Avoid labels with exposed glue or damaged backing in the rear feed path.
• Every few hundred prints, wipe the rear feed rollers and run a paper path cleaning sheet if your Epson model supports it.
These easy steps dramatically cut down recurring Paper Jam D1 and rear feed sensor stuck issues.

Customer

What if the screen says Paper Jam D1 but I never use the rear feed? It started right after a jam from the main tray.

Technician

Good catch — that happens.
Some models group the rear path, duplexer, and exit path under the D1 jam code. If you pulled paper backwards or too fast, it can bend a flag between the main tray and the rear section.

Repeat the inspection:
• Open rear cover D1 and the duplexer; check for bent plastic guides.
• Look through from the front to the back with a light — make sure no flag is stuck in the “up” position.
• Power cycle again after each adjustment.
If the printer still shows a Paper Jam D1 with clear path, it’s likely a misaligned paper path sensor. That’s repairable, but not something you should force — we can help diagnose if it’s worth fixing vs replacing.

Customer

Makes sense. Last question: is it safe to trick or bypass the sensor so it prints?

Technician

Short answer: no — don’t bypass the jam sensor.
That sensor protects the fuser, printhead, and rollers from damage if paper stalls. Taping it down or bridging it can cause overheating, smeared ink, and void warranties.

If you’ve:
• Cleared the rear path and duplexer,
• Freed and cleaned the rear feed jam sensor flag,
• Confirmed D1/D2 covers close firmly,
and the Paper Jam D1 error is still there, it’s time for a targeted repair estimate instead of risky “hacks”. Hit Start Chat, and a tech can check your exact Epson model and guide next steps.

Customer

Got it. After doing your steps carefully, the D1 error’s gone and rear feed works again. Thanks for walking me through it.

Technician

Summary: To fix Epson “Paper Jam D1” and a rear feed jam sensor stuck error:
• Power off and inspect the full rear path (D1 cover, duplexer, rear slot) with a light.
• Remove all scraps and labels in the direction of feed.
• Free and clean the rear jam sensor flag so it moves smoothly.
• Clean rear feed rollers; close D1 firmly; run a test page.
That resolves most rear feed D1 jams and false jam messages. If yours is stubborn or you’re unsure about a sensor arm, open the chat and we’ll check it live with you.

Quick answer: working fix for Epson Paper Jam D1

Accepted fix when your Epson shows “Paper Jam D1” but no paper is visible: fully open rear cover D1 and duplexer, remove all scraps from the rear paper feed slot, gently free the rear jam sensor flag, clean the rollers, close D1 firmly, then power cycle and print a test page. This clears both real jams and most false rear feed jam sensor errors.

FAQ

Step-by-step: clear Epson Paper Jam D1 safely

1. Turn the printer off and unplug it before opening the rear cover.
2. Open rear cover D1 and any rear duplexer module; remove all jammed paper in feed direction.
3. Inspect and gently move the rear feed jam sensor flag to ensure it springs freely.
4. Clean rear feed rollers with a lint-free cloth; avoid harsh cleaners.
5. Close all covers firmly until they click, plug in, power on.
6. Load a few sheets in the rear feed slot and print a test page to confirm no more Paper Jam D1 error.

Note for Windows & macOS users

1. The Paper Jam D1 code is triggered by the printer hardware, not your OS.
2. Once the rear feed path and sensor are fixed, both Windows and macOS should print normally without extra driver changes.

Sources

• Epson — Paper Jam Problems in Rear Cover 1 (D1)
• Epson — Paper Jam Problems & rear paper feed slot
• BCH Technologies — Solving Epson paper feed & jam issues

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