Oki MPS420b User Manual page 66

SYMPTOM
Paper is not fed into the
printer.
Printing does not resume
after removing jammed
paper.
PROBLEM
Improper setting is
selected for Paper
Source in the printer
driver.
The printer menu setting
is incorrect.
Printing does not resume
only by removing paper
jam.
Troubleshooting > 66
SOLUTION
Select the correct paper
source from the Source
drop down menu.
Set the size of the paper
in the Setup Menu of the
printer.
Open and close the top
cover.