8550, 8550N, 8550DN, 8550GN, 8550MFP Printer

Message Description Recommended Action
DUPLEX ERROR
CHECK DUPLEXER
EIO N
INITIALIZING
EIO N
NOT FUNCTIONAL
ENGINE TEST
FACE UP
OUTPUT BIN FULL
The printer has detected an
error in the duplexer.
An EIO accessory is
initializing.
N = EIO Slot Number
1 = Bottom EIO Slot
2 = Top EIO Slot
Indicates an EIO card error.
The error is logged to the
event log with more detail.
N = EIO Slot Number
1 = Bottom EIO Slot
2 = Top EIO Slot
The printer is running an
internal test to verify
operation. When the printer is
finished, the printer returns to
the ready state but remains
offline.
The top output bin (face up)
on the multi-bin mailbox is full.
Open the lower left door,
press the green tab on the
right side of the duplexer, and
pull the duplexer out of the
printer. Check for and remove
any jammed media from the
duplexer. Reinstall the
duplexer. Turn the printer off
and then on. If the problem
persists, contact a local
authorized HP dealer or
service representative for
service.
No action is required.
Turn the printer off and on to
reset the printer. If the
condition persists, replace the
offending EIO accessory.
Press GO to bring the printer
online.
Remove all media from the
top output bin on the multi-bin
mailbox to continue printing.
EN Printer Messages 145