The WC-7328 family: A Breath of Fresh Air (PWS Not Required) Xerox WorkCentre 7328, 7335, 7345, 7346 Finally there is a group of Xerox models which fall into the “C32 style” which technicians can repair without the fear of needing a “PWS” (Portable Work Station). The WorkCentre 7328, 7335, 7345, & 7346 Multifunction Copiers are refreshingly approachable. The predecessor models (C32, M24, DC1632, C2128, etc.) were plagued with problems relating to a lack of User Interface diagnostics. Not so for this most recent group, thank goodness. These are great machines. They’re well-built and capable of making some beautiful prints and copies. In this article, we’ll look into the more important parts and supply items and how to reset their counters. Then we’ll also look at how to get into the UI (User Interface) Diagnostics. 13R624 Drum Ctg. Drum Cartridges: Replacing the Drum Cartridge (13R624) or the Connector CRUM (Customer Replaceable Unit Monitor) on the underside of the front end of the cartridge will reset the drum counter. The cartridges for the previous models are physically extremely similar, but they aren’t interchangeable because their CRUM is different. Reconditioning these cartridges is possible thanks to the fact that they use the same Drum, Blade, and Charge Roll as the C32, etc. that came before them. 7328 Fuser Fuser Modules (8R13040 / 8R13055): The fusers are considered to be Customer Replaceable Units. The models 7328, 7335, 7345 use fuser part# 8R13040, and 7346 uses a slightly different one (8R13055). They are capable of resetting the fuser counter automatically. If you want to repair a fuser, and you want the counter to reset automatically, you would need to replace 3 pico-fuses on a little board at the rear of the fuser module. (The 7346 version would require replacement of 1 pico-fuse). You can also choose to go into the Diagnostics and reset the HFSI counter for the fuser from there (read below about “Resetting Counters”). Transfer Roll Assembly (2nd BTR) (604K19991): The 7328 family uses the same Transfer Roll Assembly as the C2128/2636/3545 models used (the C32/DC1632 version would not fit on the 7328). The counter is reset similarly to the fuser module (read below). Transfer Belt Cleaner Assembly (IBT Cleaner) (604K07060 / 604K07061): This is another counter which can be reset from the diagnostics (read below). Keep in mind that the primary part that fails in the Cleaner Assembly is the IBT Cleaning Blade (C32IBTCB). If the assembly is not otherwise broken, you can replace the blade and reset the counter and save some money over the cost of a complete assembly. 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 see a set of Tabs as follows: • ‘Machine Information’ Tab: Serial Number, IP Address, and a convenient way to Print Reports, like the “Copy Report” which turns out to be 4 double-sided pages covering all of the machine’s features including the things having to do with Printing, Scanning, Network settings, etc.) • ‘Faults’ Tab: Current Faults, Fault History • ‘Supplies’ Tab: Shows Toner and Drum Cartridge % life remaining as well as status on things like the fuser, staple cartridge, toner waste bottle, etc. • ‘Billing Information’ Tab: Copy / Print counts. • ‘Tools’ Tab: Lots and lots of stuff in this tab as you’ll see below. Choose ‘Tools’ and you will see 3 columns of choices. The one on the left will have 4 choices; choose the top one called “System Settings”. The middle column has the heading “Group” and has a scrollable list. For “System Settings” you will see these choices: • ‘Common Service Settings’ This is the one we’ll be concentrating on. • ‘Copy Service Settings’ • ‘Connectivity & Network Setup’ • ‘Print Service Settings’ • ‘Scan Service Settings’ • ‘Fax Service Settings’ • ‘Email / Internet Fax Service Settings’ • ‘Mailbox Service Settings’ • ‘Job Flow Service Settings’ • ‘Stored Document Settings’ From that middle column, choose ‘Common Service Settings’ to get to most of the good stuff. Under the right column (the heading which says ‘Features’) you will find yet another scrollable list of possibilities: • ‘Machine Clock / Timers’ • ‘Audio Tones’ • ‘Screen / Button Settings’ • ‘Paper Tray Settings’ • ‘Image Quality Adjustments’ • ‘Reports’ • ‘Maintenance / Diagnostics’ – Important for Component Tests, NVM Memory Settings, Counter Resets, etc. • ‘Watermark’ • ‘Print Universal Unique ID’ • ‘Other Settings’ There are other menu choices which may be worth exploring; however, most of the stuff us Techs would want are found by touching “System Settings”, followed by “Common Service Settings”, and then “Maintenance / Diagnostics”. Here you will find two pages of choices in the form of buttons. Among other choices, you will find: • Initialize Hard Disk • NVM Read / Write – Adjust memory settings and reset some fault conditions (read below under “Resetting some Fault Codes”). • IO Check - Access to Component Control for testing sensors, motors, etc. • Max Setup - Tools for setting up the color calibration and Registration. • Adjustment / Others: Reset Counters for things like the Transfer Roller or Belt Cleaner Assembly (read below under “Resetting Counters”). Resetting Counters: For these models, you will need to get into the “UI Diagnostic Mode” as explained above. Once you are in the Tools tab, choose the following from left to right: System Settings, Common Service Settings, and then in the right column, scroll down and touch “Maintenance / Diagnostics”. Scroll down and touch the button for “Adjustment / Others”. There you’ll find two choices: ‘Machine ID / Billing’ and ‘HFSI Counters’. Touch the ‘HFSI Counters’ button (High Frequency Service Items). Here you’ll be prompted to enter a “Chain-link” number, so enter the appropriate number from this list: 1. 954-801 = IBT Belt (Transfer Belt) 2. 954-802 = 2nd BTR (Transfer Roll) 3. 954-803 = IBT Cleaner (Transfer Belt Cleaner Assembly) 4. 954-804 = Fuser Module Then press ‘Confirm’ and some data shows up, including the current count on the part in question. If you then touch “Reset Current Value” the machine will go to a confirmation screen where you need to touch ‘Reset’. Resetting some Fault Codes: Some fault conditions will result in the machine locking up until the fault is cleared by changing the memory setting back to ‘0’. This is true for Fuser Overheat faults and Belt Home Position Failures. The machine locks up like this for good reason—it does not want to do any more damage to itself. Before you go and clear one of these faults, you must first make sure that whatever condition caused the fault in the first place has been repaired. Otherwise the problem will happen again and probably right away. Enter “UI Diagnostics Mode” (read above), press the ‘Machine Status’ button followed by the ‘Tools’ Tab. Choose ‘System Settings’, ‘Common Service Settings’, and in the right column touch ‘Maintenance / Diagnostics’. From the menu of buttons which appear, choose “NVM Read / Write”. Enter the NVM (Non Volatile Memory) Chain-Link code from the list below for the fault code you want to reset. Touch the button which says “Confirm/Change”. The Current Value will show up in the “Current Value” field. Enter a ‘0’ in the ‘New Value’ Field and then press ‘Save’. This will write the new value to memory. .The next time the machine reboots, it will attempt to start up normally. Of course the source of the fault must be repaired first otherwise the fault condition will return. Resetting - Belt Home Position Failure Codes: 04-346 (or 09-350): First check the IBT Belt (transfer belt) to make sure it is not damaged, and, if you need to replace the belt, make sure that whatever damaged the belt in the first place is no longer going to destroy another belt. When you’re confident that the physical problem is repaired and solved, then follow the instructions above. Use Chain-Link ‘741-056’: “Belt Home Failure”. Reset it to ‘0’. Resetting - Fuser Overheat codes: 10-348 or 10-350 If the code 10-348 or 10-350 come up even once, then the machine will lock up. Check for reasons for an over-heat condition. Replace or repair the Fuser Module and make sure the Fuser Cooling Fan isn’t all clogged up. Make sure there is adequate room around the machine to allow for good ventilation. To reset this one, you must enter diagnostic mode with the Front Door Interlock open. Reset Chain-Link code ‘744-003’ to ’0’ if it shows a value of ‘1’ or ‘2’. Resetting ATC Sensor Faults (Automatic Toner Concentration): 09-380, 09-381, 09-382, 09-383, or 09-548. Check for trouble in toner dispensing or a loose ATC Sensor. One is on each color developer unit. To reset the code, reset ‘Chain-link’ code ‘752-110’ back to ‘0’. Component Control (Testing motors, sensors, etc.) Testing of various parts in the machine can be done from the ‘IO Check’ feature. Get into the “UI Diagnostics” as explained earlier. Press the ‘Machine Status’ button and choose the ‘Tools’ tab. Then choose ‘Common Service Settings’ and ‘Maintenance / Diagnostics’ and look for a button which says ‘IO Check’. Touching that button will bring up a screen with two choices: “Component Control” or “Analog Monitor”. If you touch ‘Component Control’, the screen will ask you for a ‘Chain-Link’ number. Unfortunately you need to know which code you want to enter for the appropriate component and the machine does not give you a scrollable list to choose from. You’ll need to get the Chain-Link codes. That is it on this family of machines for now. I think these machines rule and I hope you all enjoy repairing them out there in the field. 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 on their website www.partsdrop.com . There’s a complete listing of past articles under contributing writers on the ENX website (www.ENXMAG.com) if you’d like to read more about Xerox brand office equipment.