Lexmark C2335/CS531/CS632/CS639 printer platform — 31.30
Lexmark 31.30 means the printer reports a transfer-module problem. The guidance here is specific to C2335/CS531/CS632/CS639 printer platform and the Transfer module operation.
Error meaning
The printer reports a transfer-module problem.
This interpretation is tied to the reviewed family/platform and subsystem. Do not reuse the code by itself on another printer family.
Applies to
C2335/CS531/CS632/CS639 printer platform
- C2335
- CS531
- CS632
- CS639
Common formatting
These are lookup/formatting aliases for this reviewed condition, not separate pages.
- 31.30
What usually causes it
- The printer reports a problem with the transfer module, the assembly that moves the developed image toward the paper. A door or cartridge message should be handled separately because this code identifies the transfer component.
- The exact condition recorded for this code is: The printer reports a transfer-module problem.
- Power the printer down normally before touching any user-accessible transfer-module area described in the guide. Check that the module is seated in its normal operating position and that no packaging or obvious obstruction prevents it from fitting correctly.
What to try
Check the condition this code actually names
Power off normally and reseat only user-accessible transfer-module components described by the guide; stop if the error returns.
Isolate the affected part of the workflow
Power the printer down normally before touching any user-accessible transfer-module area described in the guide. Check that the module is seated in its normal operating position and that no packaging or obvious obstruction prevents it from fitting correctly.
Run a controlled confirmation test
Restart and print a simple internal or one-page test. If 31.30 clears, avoid repeated removal of the transfer module; if it returns immediately, preserve the code instead of cycling supplies at random.
After each corrective action
Retry the original operation that produced 31.30. If it works, stop there rather than moving into unrelated troubleshooting.
If the code returns
If the message follows a recently replaced transfer module, verify that the installed part is intended for the C2335/CS531/CS632/CS639 platform and was installed using the normal replacement procedure.
When service may be needed
Stop before dismantling the transfer assembly or internal high-voltage areas. A recurring 31.30 after a normal reseat is service territory.
Continue with guided troubleshooting
If the printer still is not working after the reviewed checks, carry this verified error context into the guided troubleshooter.
Related information
Verified source
Official four-model User’s Guide (2026 edition) contains the printer error-code section and safety cautions.