OKI C5100 User Manual

C5100 Troubleshooting  • 137

* TONER SENSOR ERROR

Flashes across the 
second line of the 
display: the indicated 
color toner (*) is 
missing from the 
printer.

Open the top cover and 
make sure the 
indicated toner is there 
and properly seated in 
the printer: C = Cyan, Y 
= Yellow, M = Magenta, 
K = Black.

ADD MORE MEMORY
420: MEMORY OVERFLOW

The document size 
is too large for the 
printer’s memory.

Reduce the size of the 
document. If this 
happens frequently, 
install additional 
memory (see “RAM 
Memory” on page 113).

CANCELLING JOB
(JAM)

The setting for Jam 
Recovery in the 
menu has been 
changed to off and a 
paper jam has 
occurred. Any 
unprinted data is 
being deleted.

Clear the jam and 
resend the missing 
pages of the print job.

CHECK BELT
330: BELT MISSING

The belt unit is not 
properly installed.

Open the top cover and 
lift out the black (K) 
and Yellow (Y) image 
drums, placing them on 
a flat surface. Check to 
be sure that the belt 
unit latches are fully in 
the latched position:

then reinstall the image 
drums.