Lexmark Optra S 1620 Manual

Diagnostic Information2-64
4059-XXX
24X Paper Jam message displays, Paper jammed over the Pass
Thru Sensor. (X=The printer displays the value of X for the paper
tray where the error occurs. Example: 242 is a Paper Jam Tray 2)
FRU Action
1 Pass Thru Sensor and Flag
AssemblyThe tray x option system board did
not detect a piece of paper actuating
the pass thru sensor. Remove any
jammed sheets of paper from the
printer and check the pass thru
sensor and flag for proper operation
by running the appropriate...

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Tray X Paper Low Message displays when Tray X is full or has
adequate Paper in the tray.
Tray X empty message displays when there is paper in the high
capacity feeder input tray.
Tray X Empty Message displays when Tray X has paper in the tray.
FRU Action
1 Paper Low Switch
Paper Low Switch Cable
High Capacity Feeder Input
System BoardRun the sensor diagnostics for tray X
(X=the number that represents the
high capacity input tray). If the test
fails, disconnect the paper...

Diagnostic Information2-66
4059-XXX
The elevator tray fails to stop at the correct position and continues
to drive into the bottom frame.
The elevator tray down button does not operate. The tray moves to
the upper position.
Service Tip: Open the high capacity feeder option front door and
check the black rubber bumper attached to the door switch spring.
Be sure the rubber button is centered and not touching the sides of
the hole or the switch will not function properly.
FRU Action
1 Lower Limit Switch...

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Paper from the high capacity feeder input tray does not reach the
pass thru sensor.
Service Tip: Check to be sure the paper in tray is within
specifications.
FRU Action
1 Autocompensator
AssemblyCheck the autocompensator pick
arm rollers for sign of glazing, toner
or other buildup. Replace as
necessary.
2 Wear Strips Check the wear strips for glazing or
contamination. Replace as required.
It is advisable to replace all four wear
strips at the same time. 

Diagnostic Information2-68
4059-XXX
The elevator tray does not move up or down. The printer
recognizes that the option is installed.
FRU Action
1 Stepper Motor
High Capacity Feeder
Option Control Board
Stepper Motor Extension
CableBe sure the motor cable is correctly
installed at J1 on the high capacity
feeder system board. Be sure the
motor extension cable is properly
connected to the motor cable. Check
the cables for damage or loose
wires. Disconnect the motor and
check for a short between each pin
and...

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4059-XXX
The elevator moves in one direction only.
FRU Action
1 Stepper Motor
High Capacity Feeder
Option Control BoardCheck the voltages at J1 on the high
capacity system board. The voltage
measures as follows:
static (motor connected)
J1-1 (Orange) +24 V dc
J1-2 (Yellow) +24 V dc
J1-3 (Green) +24 V dc
J1-4 (White) +24 V dc
motor running
J1-1 (Orange) approximately +12 V dc
J1-2 (Yellow) approximately +12 V dc
J1-3 (Green) approximately +12 V d
J1-4 (White) approximately +12 V...

Diagnostic Information2-70
4059-XXX
Paper size switch not selecting paper size that is selected.
24X Paper Jam Check Tray X Message displays when Tray X is
empty. No Tray X Message displays.
FRU Action
1 Paper Size Switch
High Capacity Feeder
Option Control BoardCheck for continuity between the
common pin (J5-1) and the pin of the
paper size selected.
J5-1 (Black): Common Lead
J5-2 (Blue)B5
J5-3 (Green) Executive
J5-4 (Yellow) A4
J5-5 (Orange) Letter
J5-6 (Red) Legal
J5-7 (Brown) A5
If any position does...

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Tray X Empty message displays. Tray does not respond to loading
paper. No response from the front door switch.
Tray X Paper Low Message displays when the high capacity feeder
input tray is full or has adequate paper in the tray.
FRU Action
1 High Capacity Feeder
Option Control BoardCheck the voltage on the board at
J4-2 (green). The voltage measures
approximately +5 V dc. If incorrect,
disconnect the cable at J4 and check
the voltage again. If incorrect,
replace the high...

Diagnostic Information2-72
4059-XXX
Excessive Noise or Vibration
FRU Action
1 Motor Plate Assembly Be sure the motor plate assembly
screwsaretight.Besurethemotor
mounting screws are tight.
2 Motor Drive Belt Check the belt to be sure it is not too
tight.Themotorcanbeadjusted
while the motor is running for
minimum belt noise and optimum
performance.
Note:If the belt is too tight a high
pitch noise results.
3 Lead Screw Bearings If the bearings are worn or defective
the lead screw may “wobble”. Be
sure the...

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Main Drive Service Check
Service Tip: Excessive gear or main drive assembly noise is usually
caused by a defective motor assembly or engine board.
Service Tip: If there are equally spaced horizontal lines across the
page, go to“Print Quality - Evenly spaced horizontal lines or marks”
on page 2-95.
CAUTION:Whenever the gearbox assembly is removed from the
machine it must be handled very carefully. Do not allow any of the
gears to come in contact with any metal or other...