HP 13.XX Paper Jam Codes: Location Report, Not Diagnosis

Updated: 2026-10-15

A 13.XX paper jam code on an HP LaserJet is a location report, not a diagnosis. The number identifies the last sensor the sheet reached, or the sensor it failed to reach in time. That distinction decides what you check first, and it is why a 13.B9 does not automatically mean the fuser is bad.

This guide covers FOR HP LaserJet and MFP codes in the 13.XX family: what each location code reports, the failure modes that matter more than the location, and the worn parts behind repeat jams. The same logic applies across mono and color LaserJet lines, though exact sub-code wording varies by family. I have flagged where the conventions differ.

Contents

• [What the code actually reports](#what-the-code-actually-reports)
• [Location codes and first moves](#location-codes-and-first-moves)
• [Failure modes: the digits after the dot](#failure-modes-the-digits-after-the-dot)
• [Repeat jams point to wear parts](#repeat-jams-point-to-wear-parts)
• [A clearing sequence that protects the fuser](#a-clearing-sequence-that-protects-the-fuser)
• [FAQ](#faq)
• [Methodology, References and Caveats](#methodology-references-and-caveats)

What the code actually reports

The engine tracks a sheet against a timing window between photosensors. A 13.XX paper jam fires when a sheet arrives somewhere too early, too late, or never. The code is a where, not a why.

Photograph the code first.

Photograph the full code before you open any door. On most models the panel discards the code the moment a door cycles. I learned this the expensive way with a customer's M608: the code was 13.B2.D2, tray 2, and by the time I had cleared the rear door the display had moved on.

What people assume	What the code means
13.B9 = fuser is broken	A sheet arrived at or left the fuser sensor outside its window. Could be a fragment, a stuck flag, worn rollers, or the fuser.
13.A2 = tray 2 is broken	A sheet from tray 2 stopped between two sensors. Worn pickup or separation rollers are the usual field cause.
Jam code = hardware fault	Humid paper, overfilled trays, and wrong media weight cause many one-off jams with no failed part.

Location codes and first moves

HP documents jam locations by access area. Newer enterprise MFPs spell tray jams out as 13.B2.D1 and 13.B2.D2, while several other lines use 13.A1 for tray 1 and 13.A2 for tray 2. Both conventions describe the same two input positions. I mixed them up myself the first time I built this table.

Code	Location	Common field cause	First move
13.A1 / 13.B2.D1	Tray 1, multipurpose	Overloaded tray, curled media, worn tray 1 roller	Reduce stack, reload flat, inspect roller
13.A2 / 13.B2.D2	Tray 2	Worn pickup and separation rollers, guides off width	Check guides, then rollers for glazing
13.A3 to 13.A5	Trays 3 to 5, HCI	Roller wear, misseated tray, mixed media	Reseat tray, check media consistency
13.B2	Right door, registration	Sensor flags, debris in transfer area	Open door, look for fragments
13.B9	Fuser area	Torn paper, stuck fuser sensor flag	Wait for cooldown, clear rear door
13.D3	Duplexer	Curl from heavy or damp stock	Test with one-sided printing
13.E1	Output bin	Full bin, curl, sensor obstruction	Empty bin, fan the paper
13.FF	Residual paper	Fragment from a prior jam, or stuck sensor	Re-trace path with a light
31.13.yz	Document feeder	Worn ADF pick or separation roller	See the ADF-specific guide below

Older monochrome machines used a numeric scheme instead: 13.1 for feed-area delay jams, 13.5 and 13.6 for fuser jams, 13.10 for the duplexer. Those machines are still in service, so the old numbers stay on the map.

Failure modes: the digits after the dot

The location is half the message. The two digits that follow tell you how the sheet failed, and that changes the diagnosis.

Codes ending in .Dx indicate a delay jam: the sheet never arrived on schedule. Something upstream failed to hand it over, which usually means pickup or feed rollers before the reported location. Chasing the part at the reported location is the classic mistake.

Codes ending in .FF indicate residual paper: the sensor claims media where the path should be empty. Either a fragment is still in there, or a sensor flag is stuck. Pull the fragment, flick the flag, and the code clears.

Everything else, roughly, is a timing jam: the sheet moved but missed its window. Slip from glazed rollers, drag from a binding flag, or a genuine fault can all produce it. That spread is why repeat behavior matters more than any single event.

Repeat jams point to wear parts

One 13.XX paper jam is an event. A jam every 50 or 100 pages at the same location is a wear pattern, and the parts in that path have rated lives.

Pickup and separation rollers are the usual suspects. They are rubber, they glaze and flatten with use, and a slipping roller underfeeds the sheet into the timing window. Field guidance commonly puts roller replacement near 100,000 pages, though heavy media and dust shorten that. My rule, borrowed from service desks: more than about 3 jams per 500 pages means inspect the rollers, the separation pad, and the paper, in that order.

To be fair to the paper, half of what arrives at a repair bench as a roller problem is a storage problem. Sealed reams, off the concrete floor, away from the humid wall. If a machine jams only in the rainy season, rule the paper stock out first. I have shipped rollers to customers who did not need them.

Reported location	Wear part to check	Matched supply
Tray 1 (13.A1 / 13.B2.D1)	Tray 1 pickup and separation rollers	B5L24-67905 pick-up and separation roller kit for FOR HP M552 M553 and M607 to M609 series
Trays 2 to 5 (13.A2 to 13.A5)	Cassette pickup and feed rollers	Same kit family; confirm the tray roller part number for your model
ADF (31.13.yz)	ADF pick and separation rollers	ADF feed and scan problems by model
Non-HP fleet (Epson, Brother, Canon)	Model-specific pickup rollers	C12C938261 paper pickup roller for FOR Epson WorkForce M5399 and M5899

When the same tray keeps jamming, the wider diagnostic list in our guide to why a laser printer keeps jamming covers paper, humidity, and static before you commit to parts.

A clearing sequence that protects the fuser

The fuser runs at roughly 180 to 200 degrees Celsius and holds heat for minutes after shutdown. Clearing a 13.B9 hot is how fingerprints and torn fragments get made.

Wait, then pull.

Pull the sheet in its natural direction of travel, straight out. Pulling backward against the roller rotation tears it and leaves the fragment that produces a 13.FF next. If it tears, chase the piece with a flashlight before you close anything.

If the code returns after a clean clear with known-good paper, you have earned a hardware suspicion. Sensor flags first, rollers second, and the reported part last. Parts are the last step of this process, not the opening move, though the ordering is easy to forget at 5 p.m. on a deadline.

FAQ

Does a 13.B9 paper jam mean the fuser is broken?
No. The code reports a sheet at the fuser sensor outside its timing window. Field experience suggests the fuser itself is the failed part in well under half of these cases; fragments, stuck flags, and worn upstream rollers account for much of the rest.

Why does tray 2 jam every 50 pages while other trays are fine?
That pattern points at tray 2's own pickup and separation rollers, or at how the paper is loaded. Guides set to the wrong stack width, an overfilled tray, or a damp ream will all do it. Swap the paper stock first, then inspect the rollers for glazing.

What is error 13.FF after I already cleared a jam?
13.FF means the path sensor still reports paper. Either a fragment is lodged somewhere you have not looked, or a sensor flag is stuck in the paper-present position. Re-trace the entire path with a light and flick each flag gently.

Can I clear a 13.XX paper jam from the control panel?
No menu clears a physical jam. A full power cycle resets the engine sensors and occasionally clears a phantom code, but if the code returns on the next job, there is paper or a flag in the path.

How often should pickup rollers be replaced to prevent 13.A1 and 13.A2 jams?
Usage decides, not the calendar. Around 100,000 pages is a common planning figure for roller life, but glazed rollers at 60,000 on abrasive media are ordinary. Inspect at any repeat-jam pattern rather than waiting for a count.

Methodology, References and Caveats

Code locations follow HP's control panel documentation for the Color LaserJet 3550/3700 series, which lists the 13.XX.YY JAM IN TRAY X and fuser jam messages. The 13.B2.D1, 13.B2.D2, 13.B9, 13.D3 and 13.FF wording follows the troubleshooting documentation for the HP M634/M635/M636 family. The numeric legacy scheme for older machines follows a field-maintained error code reference.

Sub-code wording varies across model families. HP does not publish one unified list, so treat the tables here as a map rather than a spec sheet. The 3-jams-per-500-pages threshold and the 100,000-page roller figure are service-desk rules of thumb, not HP specifications. Nothing here overrides the service manual for your specific model.

When inspection points to worn feed parts, the roller kit linked above covers the tray 1 path on those FOR HP machines, and matching rollers exist for most Enterprise lines. The right 13.XX paper jam fix is still the one the code, the paper, and the roller surface agree on.