System Software Error - Lexmark W850n Service Manual

Step
10 Check the MPF pick solenoid for proper operation.
1. Enter Diagnostics mode.
2. Select MOTOR TESTS.
3. Select MPF pick solenoid.
Does the MPF pick solenoid make an audible clicking
sound when activated?
11 Check the MPF pick solenoid connection.
Is the MPF pick solenoid properly connected?
12 Perform a print test.
Does the error continue?
900.xx System software error
There are different types of 900.xx errors that can occur. There may be a communication problem (Bad cable,
network connection, and so on) software issue, or a hardware problem with the controller board, or ISP (Internal
solutions port). The communication and software aspects should be checked first. Determine if the problem is
constant or intermittent. Use the troubleshooting procedure below to isolate the issue. Take any notes as
instructed. You will need that information in the event you need to contact your next level support.
Note: Before troubleshooting, determine the operating system used when the error occured. If possible
determine whether a PostScript or PCL file was sent to the device when the error occured. Ask the customer
which Lexmark Solutions applications are installed on the device.
Step Action and questions
1 POR the device.
Does the error reoccur?
2 • Write down the exact 900.xx error code displayed
on the device.
• Turn the device off.
• Clear the print queues.
• Disconnect all communication cables, and remove
all memory options.
• Remove all ISP and modem cards.
• Restart the device into diagnostic mode.
Does the 900.xx error reoccur during startup?
3 Check all the cables connected to the RIP board for
proper connectivity.
Are the cables properly connected?
Check Yes
Go to step 12. Go to step 11.
Replace the MPF Replace the
pick solenoid. connection.
Go to "MPF pick
solenoid / pick
lever removal"
on page 4-59.
Replace the Problem solved.
printer engine card
assembly.
Go to "Printer
engine card
assembly
removal" on
page 4-119.
Yes No
Go to step 2. Problem
resolved.
Go to step 3. Go to step 6.
Go to step 5. Go to step 4.
Diagnostic information
4024-110
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