Lexmark Optra S 1620 Manual

Diagnostic Information2-74
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Operator Panel Service Check
Operator Panel Buttons Service Check
Note:Before continuing with this service check do the“Button Test”
on page 3-9in the diagnostic aids chapter. The operator panel cable
is a individual cable on some printers and a combination cable
assembly with the cover switch cable on later models.
4 Motor does not turn, no
gear error code 936 or User
message 201 Paper Jam
displays.Check the voltages at J12 on the
engine board.
Pin number and...

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Operator Panel Display Service Check
SERVICE TIP: The printer has detected a problem with the engine
board, operator panel cable or operator panel assembly if POST
does not complete and the printer emits 5 beeps and stops in a
continuous pattern until the printer is turned off. The operator panel
cable is a individual cable on some printers and a combination cable
assembly with the cover switch cable on later models.
Note:If the operator panel is operating properly except...

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Options Service Check
Service Tip: When you have a problem with any of the options
installed in the options slots on the interconnect board on a 2450 or
1650 (the 1250 has only one slot), switch the non operating option to
one of the other option slots to isolate the failure.
Flash Memory Option(s)
Run a copy of the test page and check to see if the option you are
checking is listed. The printer does not recognize the option being
installed if the option is not listed....

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Hard Disk Option
Service Tip: The Optra S printers support one hard disk option.
Check to make sure only one hard disk option is installed.
•1.4 GB - 1250/1620/1650/2420/2450
•2.1 GB - 1255/1625/1855/2455/3455
Check to make sure the fixed disk and the fixed disk board are
correctly installed. Run the“Quick Disk Test” on page 3-2from the
Device Test on the Diagnostic Menu when a problem is suspected
either with the hard disk system board or with the hard disk.
Note:The...

Diagnostic Information2-78
4059-XXX
Output Bin Sensor Standard Tray Service Check
Service Tip: If the output bin standard tray fills up and the bin full
sensor fails to post the message Remove Paper Standard Bin,
enter the Diagnostic Mode, select Output Bin Tests, select Sensor
Tests and select Standard Bin. Check the sensor and flag for proper
operation. If you find no problem with the sensor and flag, continue
with the service check.
Service Tip: Check to make sure the correct flag is installed. The...

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Output Expander Service Check
There are two levels of the 500 Sheet Output Expander Option.
•Level 1 is equipped with a stepper motor/mechanical linkage
assembly.
•Level 2 is equipped with a DC servo motor and a new
mechanical linkage assembly and has fewer mechanical
components.
Service Tip: The majority of the mechanical components can be
observed during operation by removing the left, right and system
board covers. The output expander functions without the covers...

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FRU Action
1 Output Expander Option Make sure the output expander
option is the only option that is not
recognized by the base printer. If the
output expander is the only option
not recognized by the printer,
continue with step 2. If not, check the
autoconnects of the options not
recognized and the interconnect
board and cable connections.
2 Output Expander Assembly
Mechanical LinkageCheck the autoconnects for damage,
especially the connector pins.
Remove the left and...

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202 Paper Jam Open Rear Door Message displays. A sheet of
paper is jammed prior to the pass through sensor flag.
202 Paper Jam Open Rear Door Message displays. A sheet of
paper feeds out to the standard bin even though bin x is selected.
Paper exits half way out of the redrive.
Service Tip: For this type of problem check the sub error codes.
They can help isolate the problem. 202 Paper Jam messages can
also occur prior to the output expander pass thru sensor.
FRU Action
1...

Diagnostic Information2-82
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3 Stepper Motor Level 1 Check the stepper motor connector
to ensure it is correctly installed at J4
on the output expander option board.
Go to“Output Expander Control
Board - Level 1 Stepper Motor” on
page 5-22. If correct, disconnect J4
from the option board and check the
resistance of the stepper motor at
J4:
J4-1 to J4-2: Approximately 10 ohms
J4-3 to J4-4: Approximately 10
ohms.
Also check each winding for shorts
between J4-1 thru J4-4 and the
motor housing. If you...

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4 Output Expander Control
Board Level 1Check the voltages at connector J4.
Go to“Output Expander Control
Board - Level 1 Stepper Motor” on
page 5-22.
Printer idle
J4-1 +21 V dc to +24 V dc
J4-2 +21 V dc to +24 V dc
J4-3 +21 V dc to +24 V dc
J4-4 +21 V dc to +24 V dc
Printer Feeding Paper
J4-1 Approximately +16 V dc
J4-2 Approximately +16 V dc
J4-3 Approximately +16 V dc
J4-4 Approximately +16 V dc
The voltage drops to approximately
+16 V dc as the output expander bin...