Lexmark Optra S 1620 Manual

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Print Registration
The print registration range is as follows:
Bottom Margin: -20 to +20
Top Margin: -25 to +25
Left Margin: -25 to +25
Right Margin: -10 to +10
To set Print Registration:
1. Select Registration from the Diagnostic menu.
2. The Top margin sign/value pair blinks. This indicates it is the
margin value being changed.
3. To select the margin value to be changed press Select until the
margin value pair you want to change is blinking.
4. To change the margin value...

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Printer Setup
Setting the Page Count
This lets the servicer change the page count from the diagnostic
menu. This is used whenever the engine board is replaced because
this board contains the printers NVRAM Memory where the page
count is stored.
To set the Page Count:
1. Select Page Count from the diagnostic menu.
– The current page count displays.
– The leftmost digit blinks, indicating it is the first digit to be
changed.
2. Press either Menu> or  or 

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Maintenance Page Count (2420/2450/2455/3455)
This counter is reset by the servicer after a “80 Scheduled
Maintenance” message displays (250K copies) and a maintenance
kit is installed.
To view the Maintenance Page Count:
1. Select Maintenance Count Value from the diagnostic menu.
2. Press Return to go to the previous menu.
To reset the Maintenance Page Count to zero:
1. Select Reset Maintenance Count. Pressing Select causes the
maintenance page counter to reset to zero.
–...

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ID message displays on Line 2 before the ID redisplays. You
have to reenter the Configuration ID until a valid ID is verified. If
the ID is valid then the ID is saved in NVRAM and the printer
automatically PORs to activate the new setting.
Note:When the printer PORs it does so in the normal mode.
Restore EP Factory Defaults
To restore each of the printer settings contained in the EP Setup
menu to their factory default value select Restore from the menu. To
exit the menu...

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Print Contrast
The print contrast setting controls the developer voltage offset.
The print contrast can be adjusted as follows:
•LOW
•MEDIUM
•HIGH
Charge Roll
The charge roll can be adjusted as follows:
•LOW
•MEDIUM
•HIGH
Print Tests
The purpose of the diagnostic Print Tests is to verify that the printer
can print on media from each of the installed input options. Each of
the installed options is listed in the following order in the menu:
Tr a y 1
Tray 2 (if installed)
Tray 3...

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The contents of the Print Test Page varies depending on the media
installed in the selected input source.
Note:The Print Test Page always prints on one side of the paper,
regardless of the duplex setting or the presence of a duplex option.
To run the Print Test Page:
1. Select Print Tests from the Diagnostic menu.
2. Select the media source.
3. Select Single or Continuous.
– If single is selected no buttons are active during printing.
– If continuous is selected, Return...

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The following is printed on page 1.
•Diagnostic EP Setup:
– fuser temperature, warm up time, transfer, print contrast and
charge roll settings.
•Contents of the Diagnostic Error Log.
•Printer configuration information:
– printer serial number, controller code level, engine code
level, operator panel code level, smart option code levels,
font versions, and so on.
•Values for the Quality Menu settings used to print the pages.
Printing Menu Settings Page
Note:This test page must...

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Autocompensator Operation
The autocompensator is a paper pick device that generates its own
normal force. This force generation is inherent in the fundamental
design of the pick arm. If light media is used, it picks very gently. If a
heavy media is used, it picks very aggressively. No customer
adjustments are necessary, therefore no special trays are needed for
card stock or labels.
The gearing in the arm is designed so the input torque from the
motor produces a movement...

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Poor gear efficiency can cause the arm to generate higher normal
forces. If the pick assembly is noisy, replacement may be required.
The arm must pivot freely through its full range of motion. On 500
sheet trays there are wrap springs located on the pivot arbors of the
arm. These springs aid to prevent the arm from bouncing. If the arm
appears to be binding or sticky near the bottom of the tray these
springs may be the problem. Reducing the tension on the
counterbalance...

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Duplex Option
The duplex option interface is a six pin autoconnector that provides a
+24 V dc, +24 V dc return, serial interface transmit signal, serial
interface receive signal and two ground pins. The duplex option
receives the +24 V dc from the base printer for the duplex motors
and also converts the voltage to +5 V dc for duplex electronics.
Duplex chassis grounding is provided from the printer to the duplex
option through a ground spring attached to the frame and...