Epson EcoTank ET-2750 False "Paper Out" / "Paper Jam" Errors: Causes, Sensor Checks, and DIY Repair Options

Q: My Epson EcoTank ET-2750 often says "Paper Out," and sometimes "Paper Jam," but there's no paper out or jam. It's getting worse over time. Feed rollers have been replaced, and there are no grinding noises. Could it be the paper feed sensor? If it's a sensor, is it easy to replace?

Now, to your ET-2750 issue: a false "Paper Out" about half the time plus occasional "Paper Jam"-with the problem worsening gradually and rollers already replaced-very often points to one of three categories:

1. Paper detection / feed sensors intermittently failing or getting blocked

2. Paper pick mechanism not moving paper far enough, consistently enough (even with new rollers)

3. Debris, paper dust, label glue, or a tiny scrap of paper interfering with detection timing

Below is how these errors typically happen and what you can do to narrow it down.

Why the ET-2750 shows false "Paper Out" or "Paper Jam"

On Epson inkjets like the ET-2750, the printer expects paper to move past a detection point within a specific time window.

• "Paper Out" can appear when the printer tries to pick paper but the paper never reaches the first sensor in time (or the sensor fails to "see" it).

• "Paper Jam" can appear when paper starts moving but then the printer detects it stalled or didn't reach the next expected position on time.

So even when there's no physical jam, anything that causes intermittent pickup or intermittent sensor readings can produce these messages.

Most likely culprit: Paper Present / Paper Feed (PE) sensor (your guess is reasonable)

Your guess-Paper Feed Sensor / Paper Present Sensor (often called the PE sensor)-is absolutely a strong possibility, especially with your "half the time" description and "progressively worse" trend.

What the PE sensor does

The PE sensor typically uses a small plastic "flag" (a lever-like tab) that paper pushes as it enters the feed path. The sensor reads the flag position.

What goes wrong over time

• Paper dust buildup makes the flag sticky (it doesn't swing freely)

• The flag spring weakens or the pivot binds

• The optical sensor becomes dusty

• A tiny torn paper corner wedges near the flag so it sometimes returns and sometimes doesn't

What you can try before replacing parts

1. Unplug printer, remove paper, open access areas you can reach.

2. Use a flashlight and look into the feed path from the rear/duplexer area (if accessible) and from the front where paper would travel.

3. Blow out dust using compressed air (short bursts). If you use a vacuum, keep it gentle.

4. If you can see the small sensor flag, check if it moves freely and returns smoothly.

Important: Don't lubricate sensor flags with oil/grease-those attract dust and usually make the problem worse long-term.

Second most common issue: Separation pad / pickup system still slipping (even after roller replacement)

A lot of people replace "the rollers" but the printer still slips because pickup is a system, not a single part.

Even with new rollers, false paper errors can still happen if:

• The separation pad is worn/glazed

• The paper lift plate / spring tension is weak

• The paper is slightly curled or too slick, causing inconsistent engagement

• The tray side guides are too tight or too loose, skewing paper so it hits the sensor awkwardly

Quick checks

• Try fresh paper from a sealed ream (plain letter/A4).

• Fan the stack, load 10-15 sheets only (not full).

• Set guides so they just touch the paper-no bowing.

• If the problem changes dramatically with different paper, the root cause is often pickup friction/tension rather than electronics.

Third likely cause: A tiny obstruction or contamination in the paper path

This is extremely common with "progressively worse" symptoms.

Look for:

• A thin strip of paper stuck near the feed entrance

• Label backing, adhesive residue, or envelope lint

• A paper clip staple, or other foreign object

• Torn paper wedged under a guide

Even a tiny piece can cause intermittent sensor timing failures and trigger "Paper Jam" even when nothing looks jammed.

Less common, but possible: Encoder strip / carriage timing issues (usually with other symptoms)

If the printer has trouble tracking motion (like the carriage or paper feed timing), it can misjudge where the paper should be and throw feed-related errors.

However, this usually comes with additional symptoms (print quality issues, carriage noise, alignment problems). Since you reported no grinding noises and the issue is primarily feed detection, I'd place this lower on the list-but still worth mentioning.

Is the sensor easy to replace?

It depends on which sensor is actually failing.

If it's the PE sensor / entry sensor

• Sometimes it's reachable with moderate disassembly.

• Often it requires removing covers and sometimes the paper feed assembly to access the sensor cleanly.

• The hardest part isn't the sensor itself-it's reassembly and routing cables correctly.

If you're "relatively good" with this kind of work, it can be doable, but I strongly recommend:

• Take photos at every step

• Keep screws grouped by location

• Avoid pulling on ribbon cables-release latches first

What parts to search for

Because ET-series part listings can vary by region and revision, the safest approach is to search using these part names (and confirm ET-2750 compatibility):

• Paper Present Sensor / PE Sensor

• Paper Feed Sensor

• ASF (Auto Sheet Feeder) sensor (some listings label it this way)

• Separation pad (paired with pickup rollers in many repair kits)

• ASF pickup roller set (if not replaced as a complete set)

If you find a part listing, match it to ET-2750 explicitly and compare pictures to what's inside your unit.

A practical "diagnosis" approach without special tools

If you want a simple way to narrow it down:

1. Load paper and print something.

2. When it fails with "Paper Out", watch closely:

   • Did the roller grab and move the top sheet at all?

   • Did the top sheet shift 1-5 mm but not feed?

   • Or did it feed partway and stop?

What it suggests:

• No movement at all → pickup engagement/tension, separation pad, lift mechanism, or pickup roller not actually gripping

• Tiny movement then stops → separation pad / friction / paper lift issues, sometimes a sticky sensor flag

• Feeds partway then error → sensor timing, debris in path, or sensor flag not reading consistently

This observation can point you toward "pickup problem" vs "sensor reading problem" pretty quickly.

Addressing printer issues can be a complicated affair due to the hands-on nature of the problems. So, we're not able to provide remote troubleshooting, suggestions, or support for printer repairs. We do offer an in-person evaluation and repair service through our local diagnostic facility: printer repair service (https://bchtechnologies.com/printer-repair-service). Due to high demand, we operate on a first-come, first-served basis, and it may take a few weeks before we're able to schedule a drop-off. Our services are structured to repair either the full printer or specific parts, with clear instructions on how to proceed. That said, we understand our rates aren't the most economical-so we genuinely recommend self-help through online research first. A great starting point is YouTube, including our channel homepage: BCH Technologies on YouTube (https://youtube.com/@bchtechnologies). To find the most relevant video fast, use the search icon near the right side of the channel menu (next to "About"). I receive many messages daily asking if there's a video for a specific topic, and after nearly nine years of publishing, it's tough to remember every single upload-YouTube's search is the quickest route, and it may also recommend helpful videos from other creators.

Thanks again for reaching out and for supporting BCH Technologies. I hope the sensor/pickup checks above help you pinpoint whether this is a sticky/failed paper-detect sensor, a separation/pickup system issue, or debris interfering with timing.