User`s guide
Problems During Data Transmission and the Print Cycle
5-13
Troubleshooting Chapter 5
When the Error LED is on (2/9)
LED Display Description Response Required
Video Under Run The buffer cannot
handle the volume
of data being sent.
Turn the power to
the printer off then
on again. Cancel the
print job through the
printer driver and
resend it.
Warning Cover Open The front or rear
cover is open.
Close the front or
rear cover.
+pp. 2-1, 2-3
Paper Size Error The wrong size of
paper has been
detected in Tray 1.
Supply the specified
size of paper to the
selected paper
source. Printing will
resume using the
paper size currently
loaded in the printer
by pressing the
Action key.
+p. 2-23
Size Mismatch The wrong size of
paper has been
detected in Tray 2 or
Tray 3.