Lexmark Optra S 1620 Manual

Diagnostic Information2-34
4059-XXX
9 Engine Board Turn the printer off and disconnect
all the cables from the engine board.
Check for +5 V dc at the engine
board test point. If incorrect, replace
the FRUs in the following order:
engine board
interconnect board
If correct, turn the printer off and
reconnect one cable at a time until
you find the defective assembly.
Service Tip: A short or low
resistance load that is attached to
the engine board can cause the
LVPS to overcurrent and shut the
+5 V dc...

2-354059 Service Manual
4059-XXX
Duplex Option Service Check
The printer does not recognize the Duplex Option is attached. The
printer does not recognize tray options below the duplex option
are installed.
FRU Action
1 FuseF1onDuplexOption
System BoardIf fuse F1 is blown, replace the fuse.
If fuse F1 continues to blow, check
the stepper motor for a short
between the motor case and pins
J3-1 through J3-4. If no problem is
found, check the D.C. servo motor
pins J1-1 and J1-2 to the motor
housing for a...

Diagnostic Information2-36
4059-XXX
POST fails, 230 Paper Jam, Check Duplex message displays.
FRU Action
1 Duplex D.C. Servo Drive
MotorCheck the D.C. servo motor cables
for signs of cuts or other damage.
Check the D.C. servo motor sensor
cable connector for pin damage. If
no problem is found, replace the
FRUs in the following order:
D. C. m o t o r a s s e m b l y
duplex option system board
2 Input Sensor, Input Sensor
FlagRun the Duplex Sensor Test from the
diagnostics menu. If the test fails,
check...

2-374059 Service Manual
4059-XXX
230 Paper Jam - Check Duplex message displays. The page is not
duplexed and only exits half way out of the redrive.
FRU Action
1 Duplex Stepper Motor Check the stepper motor cable for
cuts or pinched wiring. Check the
routing of the motor leads along the
left side of the bottom tray. Check for
correct installation of the motor cable
connector at J3 on the system
board. Check for any shorts between
each pin of the motor cable and the
motor housing. If shorts are found,...

Diagnostic Information2-38
4059-XXX
POST fails with Close Duplex Rear Door displayed when Duplex
Rear Door is closed.
POST fails with Insert Duplex Front Cover message displayed.
FRU Action
1RearDoorSwitch
(Not installed on some
duplex units)Check the rear door for correct
installation and operation. Check to
ensure the cable or connector is not
damaged and is properly connected
at J6 on the duplex system board.
The rear door switch can be checked
by measuring the continuity between
J6-1 and J6-2 on the...

2-394059 Service Manual
4059-XXX
Envelope Feeder Option Service Check
Service Tip: Check the envelope feeder paper path for any debris,
pieces of envelope and so on. If any other options are installed make
sure they are operating normally. If only the envelope feeder is failing
to operate correctly, continue with this service check, otherwise go to
the Interconnect Card Service Check.
Service Tip: The envelope feeder option receives its +5 V dc
operating voltage from the +24 V dc bulk at J1-7. If +24 V...

Diagnostic Information2-40
4059-XXX
3 Autoconnect on the
Envelope OptionCheck the connector for any signs of
damage to the connector or
contacts. If you find damage, replace
the damaged cable/connector
assembly. Disconnect the
autoconnect cable at J1 on the
envelope system board and
measure the following voltages:
J1-3 measures +5 V dc
J1-5 measures +5 V dc
J1-7 measures +24 V dc
If any of the voltages are incorrect,
replace the autoconnect
cable/connector. If the voltages are
correct, replace the...

2-414059 Service Manual
4059-XXX
Operator panel displays 260 Paper Jam immediately when
envelope feed is requested - POST incomplete.
FRU Action
1 Pass through Sensor Check for any debris, pieces of
envelope and so on over the pass
thru sensor. Check for correct
installation of the pass thru sensor
flag. Make sure the sensor cable is
attached to the envelope system
board. Perform an envelope feeder
sensor test to check both the sensor
and sensor flag.
Note:It may be necessary to use a
small tool to...

Diagnostic Information2-42
4059-XXX
Operator panel displays 260 Paper Jam after attempted feed but
before envelopes are put in the hopper OR the operator panel
continues to display Load Envelopes after envelopes are placed
in the hopper.
Service Tip: The kick rolls rotate during the attempted feed cycles.
FRU Action
1 Envelope Out Hopper
Sensor FlagCheck the envelope out sensor flag
for damage, correct installation and
operation. If incorrect, repair or
replace the flag.
2 Envelope Out Hopper Input...

2-434059 Service Manual
4059-XXX
990 Service Error, Envelopes fail to feed from the hopper.
260 Paper Jam displays, unable to clear and envelopes fail to feed
from the hopper. Kick rolls ARE NOT rotating.
FRU Action
1 D.C. Feed Motor Assembly Check the motor and motor cable for
any signs of loose wires or poor
connections. Check to make sure
the motor cable is connected to the
envelope system board.
2 Envelope Feeder System
BoardCheck the voltage on J4-1. The
voltage measures approximately
+24 V dc. If...