TL;DR

Fuser jams on digital presses require a careful manual clear following the press jam-clearing procedure. Forcing the sheet out risks fuser damage. Follow the step-by-step jam-release sequence.

What you might see

jam alarm with sheet stopped in the fuser or output path
press stopping mid-run on a jam fault
partial sheet visible in the fuser exit nip
fuser temperature alarm associated with the jam stop

Likely causes

Tap to mark as ruled out

Sheet arriving at the fuser with a leading edge fold or dog-ear that stalls in the nip
Fuser roller contamination reducing sheet release, causing sheet wrap
Paper moisture too high causing the sheet to go limp and stall
Fuser nip pressure out of specification for the paper weight being run

Required tools

Press control panel access (jam clearing guide)

Safety first

The fuser operates above 150 deg C. Never reach into the fuser area without waiting for the press cool-down indicator.
Do not force jammed sheets. Forcing tears paper in the fuser and can damage fuser rollers.

Procedure

7 steps · ~20 min

1
Stop the press and navigate to the jam clearing guide on the press control panel. The panel will show the jam location and the access door sequence.[1]
2
Open the indicated access door. Do not force the jammed sheet before reading the on-screen instructions.
Warning: The fuser operates above 150 deg C. Do not touch the fuser rolls or the jammed sheet near the fuser nip until the press displays a safe-to-touch indicator or the area has cooled for at least 5 minutes.
3
Wait for the fuser cool-down indicator before reaching near the nip area.
4
Follow the on-screen jam release steps precisely. Use both hands to pull the sheet in the direction shown to avoid tearing. Tearing leaves paper fragments in the fuser nip that cause subsequent jams.[1]
5
After clearing, open all output path doors and confirm no paper fragments remain in the fuser section before closing.
6
Inspect the leading edge of the sheets remaining in the input hopper for folds or damaged corners. Remove and discard any damaged sheets.
7
Close all access doors and restart the press. Run 5 test sheets before resuming production.

Sources

HP HP Indigo 7K / 100K Digital Press general technical documentation, HP
Digital press jam clearing procedure and fuser maintenance, general digital printing practice (general)

More guides for HP HP Indigo 7K / 100K

How to diagnose blanket ghosting on an HP Indigo 7K Digital Press

Blanket ghosting is a faint previous-image repeat on the current output, caused by residual toner on the blanket. Run a blanket cleaning cycle and verify the blanket wiper is functioning correctly.

~45 min7 steps

How to diagnose low image density on an HP Indigo 7K Digital Press

Low image density on an HP Indigo press usually points to low ink (ElectroInk) concentration or a degraded photo imaging plate (PIP). Check ink concentration first, then PIP condition.