2-108 Service Manual
7526
846.xx—Front calibration strip error service check
900.00–900.99 (except for 900.05)—System software error 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 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 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 Questions / actions Yes No
1 Remove the flatbed with glass cover See
“Flatbed with glass cover removal” on
page 4-219.
Is flatbed calibration strip properly attached to
the flatbed with glass cover?
Replace the flatbed CCD
carrier module. See
“Flatbed CCD carrier
module removal” on
page 4-250.
Replace the flatbed with
glass cover. See “Flatbed
with glass cover
removal” on page 4-219.
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
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?
Go to step 3. Go to step 6.
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