Hardware & Maintenance

Brother "Jam Inside", "Jam Rear" and "Jam Tray": Clearing Every Location Properly

Brother names the jam location, which saves a lot of guessing. Here is exactly what each message means, how to clear it without tearing the sheet, and why jams repeat.

a black and white photo of a printer
Photo: Jay Pics on Unsplash
On this page
  1. Quick fixes first
  2. What each message means
  3. Fix 1: Jam Tray
  4. Fix 2: Jam Inside
  5. Fix 3: Jam Rear
  6. Fix 4: Jam 2-sided
  7. Fix 5: When the message will not clear
  8. Fix 6: Clear the queue
  9. Why jams keep happening
  10. If nothing worked

Brother machines tell you where the jam is, which is genuinely useful. Jam Tray points to the input tray and pickup area, Jam Inside means the paper is around the drum unit, Jam Rear means it reached the fuser or exit path, and Jam 2-sided or Jam Duplex means it stuck during the flip. Clearing the right area, in the right direction, is most of the job.

Quick fixes first

  1. Read the message and note the location word. Do not just open the front cover by reflex.
  2. Power the machine off with the panel button. On lasers, wait ten minutes if the jam is at the rear - the fuser runs hot.
  3. Open the indicated area and pull the paper slowly and steadily in the direction it was travelling.
  4. Check for torn pieces with a torch before closing anything.
  5. Close all covers firmly and power on. The message should clear on its own.
User 'Repair'
phil_g CC BY-SA 2.0

What each message means

MessageWhere the paper isHow to get to it
Jam Tray / Jam Tray 1Input tray and pickup areaPull the tray fully out; check the tray and the empty bay
Jam InsideAround the drum and toner assemblyOpen the front cover and remove the drum assembly
Jam RearFuser and exit pathOpen the rear cover; let it cool first
Jam 2-sided / Jam DuplexDuplex tray under the machinePull out the duplex tray from the rear or underneath
Jam MP TrayMultipurpose or manual feed slotRemove paper from the slot and check the entry
Document JamScanner document feeder, not the printer pathOpen the ADF cover on top of the scanner

Document Jam is worth calling out separately because people often clear the whole printer path looking for it. It refers to the original you were copying or scanning, stuck in the automatic document feeder on top of the machine, and has nothing to do with the printing mechanism at all.

Fix 1: Jam Tray

Pull the tray completely out of the machine. Remove the paper stack and look at it - if the top sheets are skewed or creased, the guides were set wrong or the stack was overfilled.

Now look into the empty tray bay with a torch. The pickup roller is at the top of the opening, and jammed sheets often wrap partly around it. Pull anything you find forward, out of the machine. Also check the tray itself: the rear paper guide should be clicked into the correct size position, and the separation pad at the front of the tray should be present and slightly grippy rather than shiny.

Reload with a fanned stack below the fill line, guides touching lightly.

Fix 2: Jam Inside

Open the front cover and remove the drum and toner assembly as one unit, keeping it level. Set it on a sheet of paper away from direct light.

Look into the machine. Paper here usually sits on the transfer roller - the black rubber roller in the floor of the cavity. Pull it out in the direction it was travelling, which is toward the rear.

Do not touch the transfer roller with your fingers, and do not touch the green drum surface on the assembly. Both are damaged by skin oils, and the resulting marks appear on every subsequent page.

If the sheet is trapped under the assembly and will not move, check whether it is also gripped at the rear - a long sheet can span both areas, and pulling from one end while the other is held is exactly how it tears.

Fix 3: Jam Rear

Wait for the machine to cool. Open the rear cover, which usually drops down to horizontal. On many models there are green tabs or levers either side of the fuser that release the pressure rollers - pull them toward you before extracting the paper.

Pull the sheet straight out toward the back. If toner is still loose on the page, expect some to come off - keep it away from clothing, and clean any spillage with a dry cloth or a vacuum designed for toner, never with a damp cloth, which sets the powder.

Close the green levers and the rear cover firmly.

Fix 4: Jam 2-sided

The duplex tray is usually a slim tray that pulls out from the rear or from underneath the machine. Remove it completely and check both it and the space it came from. Sheets that jam here are typically curled from the first pass and have concertinaed at the turn.

Refit the duplex tray firmly - a partially seated tray is itself a cause of repeated duplex jams, and produces a distinctive clunk on two-sided jobs.

Fix 5: When the message will not clear

If the panel still shows a jam with an empty path, one of three things is true.

A scrap remains. Go back with a brighter torch. The usual hiding places are behind the transfer roller, wrapped around the fuser rollers, and in the corner of the duplex tray bay.

A sensor flag is stuck. Thin plastic levers along the path detect paper. One can be held down by a scrap or bent out of position. Look for small levers and check each moves freely and springs back.

The machine has latched the error. Power off at the panel, unplug for two minutes, then power on. This forces a fresh sensor read at boot.

Fix 6: Clear the queue

The interrupted job is still waiting and will restart the moment the machine recovers, potentially jamming again on the same page. On Windows 11, open Settings, then Bluetooth & devices, then Printers & scanners, select the Brother, open the queue and cancel every job. If they will not delete, press Windows+R, run services.msc, right-click Print Spooler and choose Restart. On macOS 26 Tahoe, open System Settings, then Printers & Scanners, select the printer, clear the queue and click Resume if it shows as paused.

Why jams keep happening

An occasional jam is normal. A jam every few jobs means something is wrong, and it is usually one of these.

Glazed pickup roller. Paper dust polishes the rubber until it stops gripping. Wipe it with a barely damp lint-free cloth while rotating it, until the cloth stops picking up grey.

Worn separation pad. The small pad that stops multiple sheets feeding wears smooth over thousands of pages. If it is shiny and hard, it needs replacing - on most Brother models this is a cheap part and a straightforward swap.

Paper condition. Damp paper curls and skews; paper stored in a garage or an unheated room absorbs enough moisture to matter. Use a fresh ream from a sealed pack and store it flat indoors.

Wrong media settings. If the tray is set to a different size or weight than what is loaded, the machine times the feed wrongly. Check the tray settings on the panel under Settings, then General Setup, then Tray Setting.

Overfilling. Loading above the fill line is one of the most common causes of repeat jams and one of the easiest to fix.

If nothing worked

If jams continue after cleaning the roller, replacing the separation pad, using fresh paper and confirming tray settings, the likely causes are a worn feed clutch, a damaged fuser roller with a nick that catches paper, or a broken sensor flag. Those all mean disassembly.

Brother mono lasers are among the more repair-friendly consumer printers and routinely run for a decade, so a roller kit or a fuser replacement on a machine with real workload behind it is often good value. On a lightly used home model, weigh the quote against a current equivalent - and factor in that a machine old enough to have worn rollers may also be nearing a drum replacement.

If you want a second opinion on whether a repeat jam is a consumable issue or a mechanical failure, you can get help from a printer specialist.

Related: general paper jam guide, Brother machine error codes, Brother replace toner, and the Brother support hub.

United Kingdom80 gsm A4 is the standard office weight and jams least. Recycled stock at the same weight is bulkier and benefits from smaller stacks in the tray, particularly on duplex jobs.
CanadaDry winter air causes static cling between sheets, which produces multi-feeds that present as jams. Fanning the stack thoroughly before loading makes a noticeable difference.
AustraliaHumidity in coastal areas causes sheets to swell and stick together. Keep reams sealed until use and avoid leaving paper loaded in the tray for weeks at a time.

Software mentioned in this guide

Frequently asked questions

What does Jam Inside mean on a Brother printer?

The paper is in the area around the drum and toner assembly. Open the front cover, remove the drum assembly keeping it level, and pull the sheet out toward the rear in the direction it was travelling.

What is the difference between Jam Rear and Jam 2-sided?

Jam Rear means the sheet reached the fuser and exit path at the back of the machine. Jam 2-sided means it stuck in the duplex tray while being turned over for the second side. They are different areas with different access points.

Why does my Brother printer still say paper jam after I cleared it?

Either a torn scrap remains in the path, a plastic sensor flag is stuck down, or the machine has latched the error. Re-inspect with a torch, check the sensor levers move freely, then power off and unplug for two minutes.

Is it safe to reach into the rear of a Brother laser?

Only after it has cooled. The fuser operates at around 200 degrees Celsius and stays hot for several minutes. Power the machine off and wait ten minutes before opening the rear cover.

Why does my Brother printer jam every few pages?

The usual causes are a glazed pickup roller that no longer grips, a worn separation pad, damp or curled paper, an overfilled tray, or tray settings that do not match the paper loaded. Work through them in that order.

What does Document Jam mean?

It refers to the original document stuck in the automatic document feeder on top of the scanner, not to the printing path. Open the ADF cover on the top of the machine to clear it.

Marcus Bell

IT support veteran who breaks down messy printer problems into simple, ordered fixes.

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