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945 Service Image Processor Unit Error ? Lexmark X85x MFP

Overview

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, 945.00 Service Tray 5 Failure ? Lexmark X85x MFP to follow the appropriate troubleshooting steps.

Troubleshooting

StepAction
1

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.

  • If the error does not return on power up, go to Step 3 to download and install the latest printer firmware.
  • If the error returns upon power up, proceed with the next step in order to bypass the error first.

2

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:

APower off the printer.
BOn the printer’s numeric keypad, press and hold the keys:

3

,

6

,

4

.
CPower on the printer and wait until the progress bar reaches 50% before releasing the keys.
DWait until the printer boots up and displays “Invalid Engine Code”.


Note: If the error persists or if “Invalid Engine Code” does not display, repeat steps A – D. Otherwise, continue with the next step.

3

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.

Printer ModelKey Code
For X85xex85x
For X85xe w/ Barcodex85xbc
For X85xe w/ Forms Cardx85xfm
For X85xe w/ IPDSx85xipds
For X85xe w/ Prescribex85xpre

4

Update the code using any of the methods below.

Firmware Flash MethodInformation
Embedded Web Server (EWS) RecommendedOpen a browser and enter the IP address of the printer. Select Settings > Update Firmware.
USB utilityxref_SO4667_xref for the detailed steps.
USB thumb drivexref_HO3453_xref for the detailed steps.
FTPxref_HO487_xref for the detailed steps.
MarkVision ProfessionalVisit http://www.markvisionprofessional.com to download the latest User's Guide and perform a search on Print Server updates or Generic File downloads.
Printer File Loader (USB-Macintosh)xref_HO3465_xref for the detailed steps.

5

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, How to Locate the Serial Number, Machine Type, and Config ID on a Lexmark X850e, X852e, or X854e MFP.

Please call from near the printer in case the technician on the phone asks you to perform a task involving the printer.

LEGACY ID: TE355
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