Lexmark X792 7562-4xx, Service Manualv

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Diagnostic information
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ADF and flatbed scanner errors (800–899)
Error code Description Action
840.01 The scanner has been manually
disabled Enter the configuration mode to re-enable the
scanner.
840.02 The scanner has automatically been
disabled by the controller Enter the configuration mode to re-enable the
scanner.
840.03 Scanner cable has been unplugged. Go to “840.03—Scanner cable service check” on
page 2-150 .
841.xx The scanner image ASIC has failed 1. Check all connections on the ADF controller card
assembly.
2. Replace the scanner controller card assembly if
problem remains.
Go to “Scanner interface card removal” on
page 4-233 .
842.xx The ADF controller card has lost
communication with the system. 1. Check all connections on the ADF controller card
assembly.
2. Replace the ADF controller card assembly if
problem remains.
Go to “ADF controller card removal” on
page 4-174 .
843.xx The scanner carriage home position
detection has failed. 1. Turn the machine off/on.
2.See “843.xx—Scanner carriage home position
detection service check” on page 2-151 .
844.xx The flatbed scanner exposure lamp
has failed. Replace the exposure lamp.
Go to “ADF duplex CCD assembly removal” on
page 4-176 .
845.xx Scanner card has failed. Go to “845.xx—Scanner card service check” on
page 2-153 .
846.00 Flatbed fan has failed. Go to “846.00—Scanner flatbed fan service
check” on page 2-154 .
849.00 Machine has an installed modem but
ConfigID indicates that it should not. Remove the modem.
849.10 Machine has an installed hard drive
that should not be present. Uninstall the hard drive.