WorkCentre® 7425 style: Fault Code List – Part I

This month, let’s have a look at the technical information for the Xerox® 7425 family and the newer 7525 family of full color copiers and multifunction machines. We’ve taken apart the fusers and rebuilt the drum cartridges in past articles. Now it’s time to check out the Status Code meanings, and learn how to reset the ones which require resetting. From everything I’ve seen and heard these are truly excellent pieces of equipment–they are extremely popular and well worth learning about.

7425 Copier

Below are the basic meanings behind many of the codes which you may be facing. I noticed that the list is very similar to other styles of Xerox full color machines, in particular the DC250 style. The complete list is extremely long and has tons of stuff you’ll likely never see, so this will be an abbreviated list but the most common and useful stuff is included.

Clearing some fault codes from Diagnostics:

* Fuser Heat Control problems (010-319), Overheat problems (010-320 / 010-333), and Fuser Paper Wrap failure (010-337): read below about how to reset NVM value 744-455 back to ‘0’.

Clearing some fault codes from Diagnostics:

* Fuser Heat Control problems (010-319), Overheat problems (010-320 / 010-333), and Fuser Paper Wrap failure (010-337): read below about how to reset NVM value 744-455 back to ‘0’.

** ATC Sensor failures (092-665 thru 092-668): read about how to reset NVM values and refer to the following chart for
which NVM settings to set back to ‘0’:

*** IBT Belt Home Sensor Failure (094-324): read below about how to reset NVM value 746-966 back to ‘0’.

**** HFSI (High Frequency Service Items) (094-417 thru 094-422): read below about how to reset HFSI counters for the various consumable parts.

To reset any of the NVM values you will need to first enter Diagnostic Mode (CE Mode). Press and hold the ‘0’ button for 5 seconds, then while you’re still holding ‘0’, press ‘Start’.
This will bring up the CE Passcode screen. Enter ‘6789’ at the prompt and touch “Confirm.” Next, press the “Machine Status” button. Select “Tools” followed by “System Settings.” Now in the “Group” column, choose “Common Service Settings” and in the “Features” column, scroll down and choose “Maintenance / Diagnostics.”

Now that you’re in Diagnostic Mode, you can view the recent status codes by selecting “Faults” and then choosing “Shutdown History” and then “Last 40 Faults.” Also from the “Maintenance / Diagnostics” screen, you can choose “NVM Read / Write.”

Next enter the “Chain / Link” code. The “Chain” is the first part of the code and the “Link” is the second part of a code. For example, if you want to go into 752-315, the Chain would be ‘752’, and the Link would be ‘315’. When you put in a NVM code and then select “Confirm / Change” on the touchscreen, the current value will show up. Enter a ‘0’ in the “New Value” column and touch “Save.”

When you’re done, to exit diagnostics you can press and hold the ‘0’ key and press “Start” while you’re still holding ‘0’.

Finally, the HFSI counters can be reset by the user fairly easily. Press the “Machine Status” button and select the “Supplies” tab on the control console. Select the consumable you want to reset and press “Reset Counter” on the screen.

The user also gets to enjoy some level of control, including a rather advanced “Color Correction” process, by logging into User Tools Mode. Press “Login/out” after logging in. If there are multiple users to choose from, then you’ll need to select “System Administrator.” Next enter the customer “Login ID” (the default is ‘Admin’) and then enter the password (the default is ‘1111’).

That’s it for this month! Next month we’ll dig a little more into the Diagnostic Mode on these same machines. Stay cool!