Xerox WorkCentre 5945/5955 & B8090 Families of MFP Copiers: Introduction Part 2

WC-5945, WC-5955, AltaLink B8090, B8075, B8065, B8055, B8045

The WorkCentre 5945 & 5955 MFP copiers are starting to show up on the secondary markets as more of them come off lease agreements. At the same time, the new AltaLink B8090 family continues to roll off the production line.

A few months back, we had a look at some of the basics of how to use the diagnostics and how-to backup and restore the NVM (non-volatile memory). Now let’s focus on the fault code meaning, particularly those which need to be reset from the NVM read/write memory settings.
Compiling the fault code list made it clear that the engineers of this series have decided to simplify things somewhat for customers and technicians—it’s a really good sign. For years now, each new wave of machines seemed to have more and more possible fault codes to contend with, and most of them didn’t lead to any useful troubleshooting in the service manuals. More codes did not turn out to be more helpful, they were simply confusing overkill. This machine’s list is a lot shorter than the C123 style machines, and that’s an improvement worth applauding.

Here is the abbreviated list:


Fault Code: Meaning:
301-300 Front door interlock open
301-305 Left door open
302-xxx User interface problems (UI/control panel problems)
303-xxx Software and main board communication problems
305-xxx Document feeder problems

(SPDH = single pass document handler)

305-300 Document feeder open
305-305 Document top cover open
310-xxx Fuser problems
310-153 / 154 Fuser jam—lead edge late to the fuser exit sensor
310-154 Fuser jam—trail edge late leaving the fuser exit sensor
310-170 / 171 / 172 Post fuser horizontal transport jams
*310-320 / 330 / 340 Fuser heat control problems (*Must be reset from NVM read/write; read below for details)
310-388 Horizontal transport interlock opened during a copy run
310-399 / 310-400 Fuser CRUM chip problems (make sure the fuser module or fuser CRUM is for the correct voltage model:

5945/5955/B8045/B8055 110v = 109R00847

5945/5955/B8045/B8055 220v = 109R00848

B8065/B8075/B8090 110v =109R00850

B8065/B8075/B8090 220v =109R00849

If the fuser is the for the correct model and voltage, try replacing the fuser CRUM chip

312-xxx-00-110 Finisher problems (2K LCSS version of finisher)
312-xxx-00-150 Finisher problems (LVF version of finisher)
316-xxx Network problems
319-xxx Image processing/memory faults
320-xxx Fax problems
322-xxx Communication and system errors
341-301 CRUMs bus communications
361-100 LED print head data integrity failure
362-xxx Scanner problems
362-310 Scanner to SBC (single board controller) communication failure
362-357 / 362-960 Scanner cooling fan errors
362-399 Scanner to SPDH (doc feeder) failure
362-450 to 362-472 Scanner calibration failures
362-476 Scan carriage home sensor problem
362-485 +12v low voltage power error
362-486 +24v low voltage power error
371-100 / 371-217 Tray 1 lift failure
371-500 Tray 1 opened during a copy run (note that tray 1 is seen as being “open” when none of the tray size sensors are actuated)
372-100 / 372-217 Tray 2 lift failure
372-500 Tray 2 opened during a copy run
373-100 / 373-217 Tray 3 lift failure
373-500 Tray 3 opened during a copy run
374-100 / 374-217 Tray 4 lift failure
374-500 Tray 4 opened during a copy run
381-106 Paper jam—lead edge late to tray 1 takeaway roll sensor
381-126 Paper jam—lead edge late to tray 2 takeaway roll sensor
381-136 Paper jam—lead edge late to tray 3 takeaway roll sensor
381-146 Paper jam—lead edge late to tray 4 feed sensor
381-151 Paper jam—lead edge late to registration Sensor in simplex mode
381-152 Paper jam—trail edge late leaving registration sensor
381-155 Paper jam—lead edge late to registration sensor (when feeding from bypass tray)
381-159 Paper jam—lead edge late to high capacity feeder (HCF) Exit Sensor
381-161 Paper jam—lead edge late to registration sensor in duplex mode
381-162 Paper jam—trail edge late leaving registration sensor in duplex mode
381-167 Paper jam—lead edge late to tray 4 exit sensor
381-190 / 191 / 192 / 193 Paper jam—lead edge late to registration sensor

from tray 1/tray 2/tray 3/tray 4

381-194 / 195 / 196 Paper jam—lead edge late to takeaway roll 1 sensor

from tray 2/tray 3/tray 4

381-197 / 198 Paper jam—lead edge late to takeaway roll 2 sensor

from tray 3/tray 4

381-199 Paper jam—lead edge late to HCF exit sensor from tray 4
381-200 Paper jam—unexpected sheet at registration sensor
383-155 Paper jam—lead edge late to duplex sensor
383-157 Paper jam—trail edge late leaving duplex sensor
391-377 Print cartridge cooling failure
392-399 Incompatible print cartridge (wrong version of drum cartridge detected)
392-400 Print cartridge CRUM communication error
*393-360 to 393-364 *Toner concentration sensor failures; *You must reset this fault from diagnostics (NVM read/write)*
393-390 Toner cartridge empty (machine senses no more toner is being dispensed)
393-399 Incompatible toner cartridge (wrong version of toner cartridge CRUM chip detected)
399-401 Toner cartridge not detected (toner CRUM not seen in two toner cartridge revolutions)
395-xxx Software upgrade failures

Clearing some fault codes:

Fuser faults (310-320, 310-330, & 310-340) and toner concentration faults (393-360 to 393-364) need to be reset from NVM read/write (non-volatile memory) in diagnostics as described below:

1. First enter diagnostic mode:

  • Hold down “0” button for seven seconds
  • While still holding “0,” press “Start,” then release both buttons. (Note that for the new B8090 family you would instead hold the “Home” button for 10 seconds and then release)

2. The machine will prompt you for a passcode. Enter the default code “6789” and touch “Enter.”
3. Next go to NVM read/write:

  • Choose the “Adjustments” Tab and touch the “dC131 NVM read/write” button.
  • The NVM code to reset is “501-359” system lockout fault.

4. Enter the system lockout fault NVM code:

  • Enter the first 3 digits (this is the NVM ID, in this case “501”), followed by the second set of digits (this is the NVM Index, n this case “359”).

5. Enter a “0” under the heading “Value of 501-359” and select “Write,” followed by “Close.”
6. Finally exit diagnostics & reboot:

  • Choose “Call Closeout” and “Exit and Reboot.”

Voila!—the fault is re-set. And assuming you fixed whatever triggered the fault in the first place, the machine will come to ready again.

Britt Horvat
About the Author
Britt works for The Parts Drop, a company whose primary business is providing parts, supplies and information for Xerox brand copiers, printers and fax machines. You can find more information, including many of Britt’s past ENX articles on their website, . If you’d like to read more about Xerox brand office equipment, there’s also a complete listing of past articles under contributing writers on the ENX website (