Xerox WC 7425 style Technical Information – Part II (Managing Consumables / HFSI’s)

Xerox^® WorkCentre 7425, 7428, 7435 & 7525, 7530, 7535, 7545, 7556, & 7830, 7835, 7845, 7855

Last month we got started on the Tech Info for the Xerox^® 7425 style.  We had a look at the fault code meanings, and how to reset some of the codes.  Now we’ll look at things like the various versions of toner cartridges and the stated yields for some of the other consumables / HFSI’s (High Frequency Service Items).

If you’re going to be taking these machines into the fold, you’ll want to know a few things about the various versions of the Toner Cartridges.  There are two types of Toner Cartridges here in the U.S. (Sold Plan vs. Metered Plan), and then overseas there is another kind called the “DMO” version (Developing Market Operations).  They are not interchangeable and if you install the wrong version, the machine will reject it with a fault code (“Toner CRUM Data Mismatch Fail”).  The fault codes for having the wrong cartridge are 093-926 (for Black), 093-960 (for Yellow), 093-961 (for Magenta), or 093-962 (for Cyan).

Guessing which version a machine will require is getting tricky.  At first, most of the machines folks ran across were under the “Sold” plan, but as more machines are coming off of lease and being resold into the market, we are hearing of a mixture of Sold vs. Metered versions out there.  If you are not sure which version of toner cartridges a particular machine is looking for, you’ll want to go into the NVM (Non Volatile Memory) settings and read a pair of NVM values.

Entering Diagnostics Mode:

First, here’s a refresher on how to enter Diagnostic Mode (or CE Mode as they call it). 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.’  From the menu which shows up, choose ‘NVM Read / Write’ and enter the “Chain” and “Link” (the chain is the first two digits in a code and the link is the second pair of digits after the dash) then press ‘Confirm / Change’ so that you can read the current value.  I am certain the two below will prove to be “read only” values:

740-053 = Geographic Setting (3=North America / Europe, 12= DMO, 15=Worldwide)

740-055 = Contract Type (2=Sold Plan, 3= Metered Plan, 31=Neutral)

7425/7428/7435  Toner Cartridge part #’s for each market:

7425/7428/7435  Toner Cartridge part #’s for each market:

7525/7535/7545/7556 & 7830/7835/7845/7855  Toner Cartridge part #’s for each market:

Interestingly, the first toner cartridges which come with a new machine are set to “Worldwide” for the Region, and “Neutral” for the Contract Type.  Once the initial cartridges run out of toner and get replaced, whichever toner cartridge is installed in the machine becomes that machine’s required toner cartridge version. The machine sets up its “Geographic Setting” and “Contract Type” based on the first replacement toners introduced to it.

The toner cartridge estimated yields (based on 5% coverage) are 26K for Black and 15K for Cyan, Magenta, or Yellow.  They will “time out” even if they’re not completely empty thanks to the Toner Reset CRUM chips on the cartridges.  The Toner CRUM chips also tell the machine which color they are, which “version” of the toner cartridges they are, and how many prints the cartridge has already run.

The Drum Cartridges (013R00647 for models 7425-7435 and 013R00662 for models 7525-7556 & 7830-7855) appear 4 times in the machine (one for each color position).  The yield is stated as being 56K for the 7425 version and 125K for the 7525 version.  The counters are reset automatically when the new drum cartridges are installed (a new Drum Reset CRUM is the key here).  If you want to rebuild a drum cartridge, you’d want to pick up the drum, the Blade, the Charge Roller and the appropriate Drum Reset CRUM chip.  If you suspect that one of the cartridges might be causing a copy quality issue, you can swap one for another without any problem.

Then there’s the Toner Waste Container (008R13061) which has a stated yield of 43K.

Below is a list of the other consumables with their associated HFSI codes, yields and notes about how to reset the counters.

HFSI Codes and yields:

*  As noted in last month’s article, some of the HFSI counters can be reset by the User easily enough.  Simply 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.

** Some HFSI counters require resetting from Diagnostics.  Enter Diagnostic Mode (CE Diagnostics) as explained earlier in this article and choose ‘Adjustment / Others’ from the menu.  Select ‘HFSI Counter.’  Scroll down the list and find the HFSI you want to reset and press ‘Details.’  To clear the counter, select ‘Reset Current Value.’  The screen will say ‘Job completed.’  You can also “Change Spec Life” if you want a particular counter to go longer between replacement messages.  Press ‘Close’ when you’re done.

There are a few alternate Boot Modes you can use if the machine is having trouble booting up.  These may help you get rid of erroneous codes or commands which cause trouble in the booting process.  Keep in mind you may lose some information (such as a print jobs in the queue) by using these alternate start-up methods.

Special Boot Modes:

Job Log Initialization: this will delete any print or copy job which is in progress before the machine boots up.  To boot up with “Job Log Initialization,” hold the ‘1’, the ‘Stop’, and the ‘Energy Saver’ buttons all together while turning on the power.  Keep holding the buttons until the boot up screen with the progress bar appears.

Spool Initialization: this will delete all pending print or copy jobs in the queue  before the machine boots up.  To boot up using “Spool Initialization,” hold the ‘6’, the ‘Stop’, and the ‘Energy Saver’ buttons simultaneously while you turn on the power.  Keep holding the buttons till the boot up screen appears.

There are other special Boot Modes, but the other ones are not to be taken lightly, so we won’t cover them here.  One is for initializing the HDD which wipes out all customer data.  The final one initializes the ESS NVM (memory) which would then require someone to come along with the PWS laptop to reload all of the Memory Settings for the machine.

I think that should do it for this month.  Next article we’ll sift though the rather lengthy list of Component Controls available to you from Diagnostics so you can test sensors, motors, clutches, etc.  Have a great September!