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):

Code Input Component Name Description
004-100 Belt Home Sensor * Read note below for how to test this sensor.   Belt at Home Sensor = Low
004-101 Drum Motor (YMC) Failure Detection Drum Motor (YMC) seized = High
004-102 Drum Motor (Black) Failure Detection Drum Motor (Black) seized = High
004-200 Fuser Fan Lock Failure Fan rotation is stopped = Fault
004-201 Bottom Fan Lock Failure Fan rotation is stopped = Fault
004-202 Developer Fan Lock Failure Fan rotation is stopped = Fault
004-203 LV Fan Lock Failure Fan rotation is stopped = Fault
004-204 Rear Fan Failure Fan rotation is stopped = Fault
005-102 Document Sensor No paper detected = High
005-110 Registration Sensor (DADF) Paper detected = Low
005-205 DADF Feed Out Sensor Paper detected = Low
005-206 DADF Pre-Registration Sensor Paper detected = Low
005-211 DADF Invert Sensor Paper detected = Low
005-212 DADF Feeder Cover Interlock Switch Feeder Cover open
005-213 DADF Platen Interlock Switch Platen Interlock open
005-215/216/ 217 DADF #1/2/3 Tray APS Sensor Light is not blocked by the actuator
005-218/219/ 220 DADF #1/2/3 APS Sensor (Auto Paper Size) paper detected by APS No.1 Sensor
005-221/222 DADF Tray Size Sensor No.1/No.2 paper detected by Tray Size SNR No.1
005-225 Nudger Position Sensor The Nudger Roll is at UP position
006-160 Polygon Motor Ready Signal Regular rotation of Polygon Motor = Low
007-100/101/102/103 Tray 1 Size Switch 1/2/3/4 ON = Analog value
007-104/105/ 106/107 Tray 2 Size Switch 1/2/3/4 ON = Analog value
007-108/109/110/111 Tray 3 Size Switch 1/2/3/4 ON = Analog value
007-112/113/114/115 Tray 4 Size Switch 1/2/3/4 ON = Analog value
007-116/117/118/119 Tray 1/2/3/4 Level Sensor Lift Up = High
007-120/121/122/ 123/125 Tray 1/2/3/4/5 No paper Sensor No paper = High
007-128 Face Up Tray Detect Low when Tray is installed = Low
008-100 #1 Feed Out Sensor Paper detected = High
008-102 #3 Feed Out Sensor Paper detected = High
008-103 #4 Feed Out Sensor Paper detected = High
008-104 Registration Sensor No paper -ON = Low
008-105 DUP Wait Sensor Paper detected = High
008-106 T/A Sensor Paper detected = High
008-107 TTM Paper Path Sensor1 Paper detected = High
008-108 TTM Paper Path Sensor2 Paper detected = High
008-109 OHP Sensor#L ON = Low
008-110 OHP Sensor#R ON = Low
008-300 DUP Open Switch ON = High
009-101 Toner Ctg New Sensor – Yellow Low=new, High=old
009-102 Toner Ctg New Sensor – Magenta Low=new, High=old
009-103 Toner Ctg New Sensor – Cyan Low=new, High=old
009-104 Toner Ctg New Sensor – Black Low=new, High=old
009-150 Toner Waste Full Sensor ON = High
009-151 Drum Ctg Present – Yellow Drum Ctg is installed
009-152 Drum Ctg Present – Magenta Drum Ctg is installed
009-153 Drum Ctg Present – Cyan Drum Ctg is installed
009-154 Drum Ctg Present – Black Drum Ctg is installed
009-200 2nd BTR Retract Sensor Retraction ON = Low
009-201 Paper On Belt Sensor Paper detected = Low
009-203 1st BTR Retract Sensor Retraction = Low
010-101 Fuser Exit Paper detected = High
010-102 Full Paper Stack Sensor Not Full = Low
012-100 IOT Registration Clutch Clutch OFF = High
012-103 Horizontal Transfer Entrance Sensor Paper detected = High
012-104 Horizontal Transfer Exit Sensor Paper detected = High
012-215 Horizontal Transfer IOT Full Paper Sensor No paper = High
012-305 Horizontal Transfer Interlock Sensor Open = High
062-201 Sheet Abort Document Registration
062-212 IIT Registration Sensor De-actuation of Registration Sensor
062-240 ADF Exist DADF is not installed
062-251 APS Sensor1 Document detected
062-253 APS Sensor3 Document detected
062-272 Scan Start Scan available
062-300 Platen I/L Switch Platen closed
062-301 Angle Sensor Platen opened

* 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.

Code Component Name Description
004-001 Steering Motor Re-switch the Steering Cam to Home position once and operate it at half cycle after that.
004-002 IBT Motor (104 mm/sec) Operate with the IBT Assy. removed to prevent Transfer Belt damage
004-003 Drum Motor YMC (104 mm/sec) Remove all Drum Cartridges before energizing to prevent Belt damage
004-005 Steering Motor Home Position Returns Steering Cam to home position ON = Low. Operate with the IBT Assy. removed to prevent Transfer Belt damage
004-006 Drum Motor K (104 mm/sec) Remove all Drum Cartridges before energizing to prevent Belt damage
004-008 Main Motor (194 mm/sec) Rotate at high speed. First OPEN the Left Hand Cover to avoid the 2nd BTR damaging the belt
004-014 IBT_5V ON ON = High
004-050 Fuser Fan, LV Fan and Rear Fan Rotation High speed Rotate the FUSER FAN, LV FAN and REAR FAN at high speed. (Rotation is Low at Power ON)
004-051 Developer Fan and Bottom Fan On Rotate the DV Fan and Bottom Fan at high speed
005-001/ 002/003/ 004/005 DADF Feed Motor (Speed 1/2/3/4/5) ON for 50sec> Auto OFF
005-014 DADF Feed Motor (Reverse) ON for 50sec> Auto OFF
005-026/ 027/028/ 029/030 DADF Reg. Motor (Speed 1/2/3/4/5) ON for 50sec> Auto OFF
005-036 DADF Reg. Motor(Reverse) ON for 50sec> Auto OFF
005-072 Nip Release Solenoid 3 sec on
005-073 Stamp Solenoid ON for 10 msec> Auto OFF
005-083 Doc Ready Turn ON the Doc Ready signal
005-084 Doc Set LED Belt: Turn ON the DOC SET LED
005-088 Image Area ON for 5 sec
005-090 Document Nudger initialize Performs Nudger Roll initialization
006-004 IPS Cooling Fan (Low speed) Fan at high speed (24V) for 5 sec, then low speed (13V). Fan Slow = Low
006-014 IPS Cooling Fan (High speed) Operate the IPS Cooling Fan at high speed
006-030 LD ON Enable Signal Concurrently for 4 colors (LD = Laser Diode)
006-031 Polygon Motor Start Signal ROS (Laser Unit Polygon Motor) turns on briefly.
006-032 SOS Gain Start-of-Scan Sensor gain signal
007-003 Tray 5 FEED Clutch Energize Tray 5 Feed clutch
008-001/ 003/005/ 007 Tray 1/2/3/4 Feed/Tray Lift Motor (Fwd) Feed (Rotates #1/2/3/4 Feed Motor in paper feed direction)
008-002/ 004/006/ 008 Tray 1/2/3/4 Feed/Tray Lift Motor (Rev) Lift-Up (Switches OFF automatically 6 sec after Lift-Up has started, or when the Level Sensor detects Lift-Up
008-009 Duplex Motor (200.1 mm/sec.) Start operation. Switches OFF automatically at 1000 msec
008-022 3TM Takeaway Motor (104 mm/sec) Start operation. Switches OFF automatically at 1000 msec
008-037 Registration Clutch Switches on. Switches off automatically at 400msec
008-038 Registration Clutch Long Switches on for a longer period of time
008-042 Invert Clutch CW Switches on in output direction. Switches OFF automatically at 400msec
008-043 Invert Clutch CCW Switches ON in Invert direction. Switches OFF automatically at 400 msec
008-045 Exit Gate Solenoid 1 On for 200 msec
008-046 Duplex Gate Solenoid Face Up position ON for 200 msec
008-054 Duplex Motor (302 mm/s) Start operation. Switches OFF automatically at 1 sec
008-077 Tray 2 (1TM option) Takeaway Motor (400 mm/s) Start operation. Switches OFF automatically at 1 sec
008-214 (TTM option) Takeaway Motor #1 (208 mm/s) Start operation. Switches OFF automatically at 1 sec
008-219 (TTM option) Takeaway Motor #2 (370 mm/s) Start operation. Switches OFF automatically at 1sec
009-001 Y – Toner Dispense Motor Y Color Disp. MOT turns ON, and switches OFF automatically after 5 sec
009-002 M – Toner Dispense Motor M Color Disp. MOT turns ON, and switches OFF automatically after 5 sec
009-003 C – Toner Dispense Motor C Color Disp. MOT turns ON, and switches OFF automatically after 5 sec
009-004 K – Toner Dispense Motor K Color Disp. MOT turns ON, and switches OFF automatically after 5 sec
009-005 Y_DB DC Y Color Developer Bias DC Component Output
009-013 Developer Clutch – K The clutch for driving K Color turns ON, and switches OFF automatically after 5 sec
009-014 Developer Drive Motor (Normal-speed) Switches off automatically after 5 sec
009-034 Agitator Motor Agitator Motor ON
009-040 ROS Shutter Close ROS Shutter: Rotates in Close direction (Brush: Contact direction)
009-041 ROS Shutter Open ROS Shutter: Rotates in Open direction (Brush: Retract direction) ON = High
009-042 K – Erase Lamp (104 mm/s) K ERASE LAMP lit
009-045 YMC – Erase Lamp (104 mm/s) YMC ERASE LAMP lit
009-051 2nd BTR Contact BTR2 Retract MOT. Switches off 800 msec after the Retract SNR detected the Contact Position (High)
009-052 2nd BTR Retract Switches off 60 msec after the Retract SNR detected the Retract Position (Low)
009-054 1st BTR Contact Switches off 100 msec after the Retract SNR detected the Contact Position (High)
009-055 1st BTR Retract Switches off 100 msec after the Retract SNR detected the Retract Position (Low)
009-078 ADC Sensor Shutter Open Switches off automatically after 100msec
009-079 ADC Sensor Shutter Close Switches off automatically after 100 msec
010-001 OCT Motor (CW) Switches on forward and switches off automatically at 150 msec
010-002 OCT Motor (CCW) Switches on reverse and switches off automatically at 150 msec
012-060 H-Transport Gate-In Solenoid Open Horizontal Transport Gate Open (off after 200msec)
012-061 H-Transport Gate-In Solenoid Close Horizontal Transport Gate Close (off after 200msec)
062-002 IIT Exposure Lamp Turn the Lamp ON for 180sec> Auto OFF
062-005 IIT Scan Motor (Scan) Move Scan Carriage 50 mm from current position in Scan direction
062-006 IIT Scan Motor (Return) Move Scan Carriage 50 mm from current position in Return direction
062-086 IIT Image Area IMAGE-AREA Signal Output

 

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!

 

 

Britt Horvat
About the Author
Britt Horvat 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 www.partsdrop.com.