Oce CS2436 User Manual page 728

Troubleshooting (CS2436-11)
the following conditions. Note that other
operations are not possible while
"Agitating" is displayed on the control
panel.
After the printer is turned on. (The
time for agitation varies depending on
how long the printer was off—between
about 30 seconds and two minutes.)
After data transmission. (After about a
minute and a half, printing operations
begin. However, printing may start later
after data reception, depending on the
size of print data.)
After ink tank replacement. (Ink
agitation takes about three and a half
minutes.)
In other cases, contact your Océ dealer.