Control panel messages (continued)
Control panel message
20INSUFFICIENT MEMORY
alternates with
For help press 
To continue press 
22 EIO X
BUFFER OVERFLOW
alternates with
To continue press 
22 PARALLEL I/O
BUFFER OVERFLOW
alternates with
To continue press 
22 SERIAL I/O
BUFFER OVERFLOW
alternates with
To continue press 
22 USB I/O
BUFFER OVERFLOW
alternates with
To continue press 
Description
The printer has received more data from the computer than fits in available memory.
The printer EIO card in slot X has overflowed its I/O buffer during a busy state.
The printer’s parallel buffer has overflowed during a busy state.
The printer serial buffer has overflowed during a busy state.
The printer's USB buffer has overflowed during a busy state.
Recommended action
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.
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.
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.
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.
1.Press 
to continue printing.
NOTE
A loss of data will occur.
2.If the message persists, contact HP Support.
136 Chapter 8 Problemsolving | ENWW |