Some Catching Up to Do with the WC-7328 Family

Xerox models: WorkCentre 7328, 7335, 7345, 7346 (and WC-7228, 7235, 7245)

There’s more to be said about this 7328 family of machines. It remains a viable population of full color copiers in the aftermarket scene. This group was the last of the C32 style to be produced.  In earlier ENX articles, we’ve covered the basics of the machine and its consumables, but some things remained unsaid.  Although previous articles explained how to get into the component control codes (IO check) and NVM codes, when you get there, the machine is not so kind as to give you a nice scrolling list of codes on the control panel. Instead, you need to know which code you want to enter.  It’s time to address that missing bit of info and get a list into your hands (at least a partial list), so you can fully support the machine, even though you may not be blessed with access with a PWS laptop with the interface software for this series.

Entering Diagnostic mode (CE Diagnostic Mode):

Hold ‘0’ for at least 10 seconds, then press ‘Start.’ A password prompt should show up. Enter ‘6789’ followed by ‘Confirm.’  Now press the ‘Machine Status’ button. You’ll want to choose the ‘Tools’ tab at which point you will see 3 columns of choices—the one on the left will have 4 choices. Choose the top one which says ‘System Settings.’  The middle column has the heading ‘Group.’ From there, choose ‘Common Service Settings,’ and then in the right column (the heading says ‘Features’), you will find another scrollable list of possibilities. Scroll down and touch ‘Maintenance / Diagnostics’ which will bring you to a menu of most of the really important stuff.     If you want to test components such as motors, clutches, sensors, etc. you will choose ‘IO check.’

COMPONENT CONTROL (IO CHECK):

From the ‘Maintenance / Diagnostics’ menu, choose ‘IO Check.’ This will bring up a screen which prompts you for a Chain / Link number (the “chain” is the first set of 3 digits, and the “link” is the second set of 3 digits).  Enter the desired code and select ‘Enter Number.’  If it is an input component (sensors for example), the display will indicate the current status in the ‘Status Column’ and will count up (by +1) when the component is switched on or off.  If it is an output component (motors for example), the component will energize.  You can run multiple Chain / Link codes by entering the first code, then entering the second one while the first one is still running.  Some output codes cannot be safely run at the same time. The machine knows these would be “conflicts” and will not run them simultaneously.  If you enter two conflicting output component codes, the second one will simply fail to activate the component to prevent possible damage to the machine (smart cookie this machine is).

Below is a list of the available Input Component Codes you can test (sensors, switches, etc.):

INPUT COMPONENTS (sensors or switches):

* Note on testing the IBT Belt Home Position Sensor: First enter the code 004-104 (to turn on the IBT 5V for the sensor), then enter 004-100. When the IBT belt is not at the home position, it reads as an open circuit (High). Rotate the belt a full revolution; whenever it passes the home position, the signal should change to “Low.”

OUTPUT COMPONENTS (motors, clutches, etc.):

WARNING !!! Read the information in the descriptions carefully, especially for motors which can cause damage to the IBT belt if the recommended precautions are not taken.

Well, that should give you all a better handle on troubleshooting problems in this series of models. They are great copiers and worthy of fixing for years to come.  Parts remain readily available and the same is true for the supplies.  Enjoy everyone!