2-28 Service Manual
7525-63x
Service checks
900.xx system software error service check
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 RIP 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 of support.
Note: Before troubleshooting, determine the operating system used when the error occurred. If possible
determine whether a PostScript or PCL file was sent to the device when the error occurred. Ask the customer
which Lexmark Solutions applications are installed on the device.
Step Action and questions Yes No
1 POR the device.
Does the error reoccur?
Go to step 2. Problem resolved.
2
• Write down the exact 900.xx error code
displayed.
• 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 Diagnostics mode.
Does the 900.xx error reoccur during
startup?
Go to step 3. Go to step 6.
3
Check all the cables connected to the RIP
board for proper connectivity.
Are the cables properly connected?
Go to step 5. Go to step 4.
4
Properly connect the cables to the RIP board.
Restart the device into Diagnostic mode.
Does the 900.xx error reoccur during
startup?
Go to step 5. Go to step 6.
5
Replace the RIP board, and restart the
device.
Does this fix the problem?
Note: If an error, different from the original
900.xx, is displayed, consult the service
check for that error.
Problem resolved. Go to step 31.
CAUTION
Service checks which involve measuring voltages on the LVPS/HVPS (low voltage power
supply/high voltage power supply board) should be performed with the printer positioned on
its back side.
Note: When making voltage readings, always use frame ground unless another ground is
specified. See the wiring diagram in the back of the book for more information.
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