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Control panel message Description Recommended action
20 INSUFFICIENT
MEMORY
alternates with
For help press
To continue press
The printer has received more data from
the computer than fits in available
memory.
1. Press to continue printing.
Note
A loss of data will occur.
2. Reduce the complexity of the print
job to avoid this error.
3. Adding memory to the printer may
allow printing of more complex
pages.
22 EIO X
BUFFER OVERFLOW
alternates with
To continue press
The printer EIO card in slot X has
overflowed its I/O buffer during a busy
state.
1. Press to continue printing.
Note
A loss of data will occur.
2. If the message persists, contact
HP Support.
For the HP Color LaserJet 3700 series
printer only when an EIO device is
installed.
22 PARALLEL I/O
BUFFER OVERFLOW
alternates with
To continue press
The printer’s parallel buffer has
overflowed during a busy state.
For the HP Color LaserJet 3700 series
printer only.
1. Press
to continue printing.
Note
A loss of data will occur.
2. If the message persists after exiting
Help, contact HP Support.
22 SERIAL I/O
BUFFER OVERFLOW
alternates with
To continue press
The printer serial buffer has overflowed
during a busy state.
For the HP Color LaserJet 3700 series
printer only when an EIO device is
installed.
1. Press
to continue printing.
Note
A loss of data will occur.
2. If the message persists, contact
HP Support.
22 USB I/O
BUFFER OVERFLOW
alternates with
To continue press
The printer's USB buffer has overflowed
during a busy state.
1. Press to continue printing.
Note
A loss of data will occur.
2. If the message persists, contact
HP Support.
ENWW Control panel messages
147