Oce 3121 Technical & Service Manual page 742

Period
TNTR1
(initial rotation 1)
SLEEP
(sleep)
INTR2 (initial rota-
tion 2)
SCFW (scan for-
ward)
SCRV (scan reverse) While the scanner is
516 TSM Océ 3121
From when the
machine is switched
ON. Or, when the
front panel is open or
closed. Up to the
commencement of
standby.
Economy When the ON/OFF
mode switch on the operat-
(SLEEP 2) ing panel is OFF and
the main ON/OFF
switch is ON. Fax
reception is enabled
but printer functions
are disabled.
Quick-start When the ON/OFF
mode switch on the operat-
(SLEEP 1) ing panel is OFF and
the main ON/OFF
switch is ON. Fax
reception and printer
functions are enabled.
From when the copy
button is pressed, until
the scanner starts to
move forward.
While the scanner is
moving forward.
The distance that the
scanner moves for-
ward varies according
to the selected paper
size and the reproduc-
tion ratio.
....
moving in reverse.
Purpose Remarks
Measures the
resistance of
the OPC
Switches OFF For details on
the loads when "power saving
the machine is mode" see the
not used for a appropriate
long time (such descriptions
as at night). under "Power
Supply."
Stabilizes the
drum sensitiv-
ity, preparing
for the copy-
ing operation.
Executes shad-
ing correction.
The scanning The forward
lamp illumi- movement is
nates the docu- related to the
ment. The detection signal
reflection is for the vertical
projected on transport.
the CCD, via
mirrors and
lenses.
Returns the
scanner to the
home position,
preparing for
the next copy-
ing operation.
Functional description