HP 2100 TN - Manual (Page 115)

EN Chapter 4 Problem Solving 103
IO Error The cable between the printer and
computer has a bad connection or the
cable is of poor quality. Check the cable
connections to see if they are secure.
Make sure you are using a high-quality
cable.
Temporary Error The printer has experienced a temporary
error. Reset the printer by briefly turning
the printer off and back on again.
NVRAM Error The nonvolatile memory (NVRAM) is
temporarily full.
Press
Go to clear the message. Check
the printer settings to ensure they are
correct. If the problem persists, contact
your dealer or HP service representative.
Continuable Error (continued)
Type of Error Light Pattern Recommended Action