This article discusses the troubleshooting steps that you can perform when a “945 Service Image Processor Unit Error” appears on your Lexmark X85x Multifunction Printer (MFP).
NOTE: Normally, the numeric error 945 pertains to a "Service Tray 5 Failure". Tray 5 is part of the optional high-capacity feeder. If the printer specifically displays this message, click here to follow the appropriate troubleshooting steps.
The error will most probably occur when you are trying to make a copy. If so, power off the printer and wait for 10-20 seconds before you power it back on.
Set the printer into “Invalid Engine Code” state. This should bypass the error posted on the printer and allow you to perform the update. To do this:
Note: If the error persists or if “Invalid Engine Code” does not display, repeat steps A – D. Otherwise, continue with the next step.
Download the printer’s latest code from Lexmark Support Website. Use the appropriate Authorization Key Code below. Save the file and extract it to the same directory.
Update the code using any of the methods below.
If the issue persists or if you are having difficulties doing the update, contact Lexmark Technical Support.
Still need help?
Please contact Lexmark Technical Support if you need additional assistance. NOTE: When calling for support, you will be asked for your machine/model type and serial number (SN). If you need help locating these, click here.
Please call from near the printer in case the technician on the phone asks you to perform a task involving the printer.