Remove dispense assy from machine, then you can check
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thx to xcopytech I was able to identify the stuck rod and unlock it. As previous toners' chips have been flagged as empty, I now have to wait to receive new ones before I can try to reinstall the cyan toner and see if that fixed the issue.
Question in the meanwhile : I cleaned the dispenser pipes containing the rods. It seems to me that when a new toner is installed, the printer goes true a "fill" cycle. Is this correct? Or is this based on actual toner detection? I'm asking as the other three toners (KMY) will be detected as already installed : any way to "force" refilling the dispenser pipes?
Thx!Comment
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just replaced the chip, put the toner back again and same error
Will check the rod again but is there any way, for example through service mode, to check things are working without invalidating the chip/toner cartridge? I bought 4 anticipating some issues but would avoid having to buy more... Thx!
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Did you remove dispenser assy and check gear on back side?Comment
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This machine do not have toner empty or no toner sensor, ATC sensor from developer assy send signal to dispenser to add toner, if dispenser do not deliver toner ATC sensor will send signal for toner empty and replace toner message. So you have to check dispenser motor from diagnostic.Comment
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As there's no sensor in the dispenser unit, could the problem lie somewhere else between the dispenser and ATC sensor in dev unit?
And still looking forward for my previous question: but is there any way to check things are working without invalidating the chip/toner cartridge?
EDIT: after quick inspection (only removal of fron panel) seems like the toner is maling it throguh the dispenser. How could I diagnose if there's a problem with the developer unit/ATC sensor?Last edited by ATB; 08-13-2024, 05:33 PM.Comment
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checked everything again, removed all toners, powered up, added cyan toner. Printer says new toner is installed, no noises, immediately says toner is empty. Is there somehow a way to bypass chip reading (like 3rd party mode through nvm)?
PS: my previous comment is still unapproved. Am I doing something wrong or is it just a measure applied to all users?Comment
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Did you remove and check number 10 from pic posted here? Number 10 is dispenser assy for three colors. If you set machine to third party mode, you will get problem with no cyan on print.Comment
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it is not the first time that I am being asked if I've done things while I already have wrote about doing them; this doesn't help; it doesn't sound very respectful: is it possible to avoid this?
What would instead be helpful is being specific and unique (writing sentences in a way that they can be interpreted in only one way): "remove and check" is very generic.
I previously described exactly what I've done and the outcome.
Also I would appreciate answers to questions I asked rather than answers to questions I didn't ask: I did ask "Is there somehow a way to bypass chip reading?" I didn't ask "What happens if I set the machine to third party mode?"
Thanks again.Comment
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So let's try and see if we can merge xcopytech's extensive knowledge and experience with some analytical troubleshooting. It is my understanding that (ignoring SW/FW):
1) the toner fits in the dispenser assembly. It is made in a way that when the toner is fully inserted, the sliding door on the bottom of the toner cartridge slides allowing toner to get out
2) a spring inside the toner is actioned by a motor. The spring rotates into the toner's cylinder to push towards the exit hole
3) once out of its cartridge, the toner falls into the dispenser's cylinder. An elliptical rod is actioned by a (different?) motor. The rod rotates pushing the toner in its cylinder from the back of the printer to the other side (front of the printer).
4) the toner falls into the coresponding developer unit where two roads spread it even across all the developer unit. The developer unit also contains a sensor (called ATC) that measures toner's presence/density)
5) the developer unit contains the developer powder that attracs toner on a cylinder that stands side-by-side with the drum's cylinder. The drum is then charged to build the image elecrtomagnetically attracting toner from the developer.
Analytical troubleshooting (based on logic), requires to follow a precise flow-chart to identify where the problem lies in the 5 mentioned steps. Problem is that HW/FW/SW only detect (some) issues with the motors (no error is reported in my case) and lack of toner from the ATC (if the ATC is working ok).
I think we all agree from the steps I've done following the guidelines I received, the for some reasons the cyan toner doesn't make it to the developer unit as it was nearly empty (except for the developer powder). How can I further troubleshoot to understand where, from step 1 to 4, the process is failing?
To add complexity to the troubleshooting, we have the chip issue: it seems to me that each time I insert the toner to see if the problem is solved, the printer flags the cartridge as empty making it unusable until the chip is replaced with a new one.
My ideas: would be useful to understand:
- how to manually replicate all the steps to understand where the problem is (where the toner stops within the usual flow)
- which service/diagnostic mode tools can help (for example to test the involved motors and readings from ATC)Comment
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What about reading the service manual?Comment
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What about reading my previous comments and not giving for granted I didn't? That would reveal that I've already went through the service manual (I also mentioned some portions and copy/pasted some illustrations).
all it says is:
324-925 C Toner Cartridge Empty
BSD-ON: 9.4 Drum Life Control (C,K)
Procedure
Replace toner cartridge.
If the machine declares Toner Empty state even when remaining toner is not low, perform
dC991 Tone Up/Down first to see if Toner Empty state is canceled or not.
If not cancelled, check Dispense Motor drive PL 8.1 or toner supply path.
and BTW PL8.1 contains no Dispense Motor drive but:
image.png
while instead it is in PL 5.1 so it's not like the service manual is very helpful in diagnosing where the problem is.
image.png
That being said, adriansto, any advice you may want to share with the community?Comment
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I spent time documenting all my thoughts and actions so others can benefit from and this is all you you contributed with:
msg 1: What about reading the service manual?
msg 2: Exist Chapter 6 in manual with service procedure.
We all know I already have the service manual and went through it; all of it? No of course not, there are 1500 pages with (as shown before) some errors and missing explanations/procedures. Can you please develop on the meaning/purpose of your two comments? Should I deduct this is purely inflammatory? I'm asking because I can't find any other explanation and I genuinely hope being wrong.
Reminder from the general rules of the forum:
While debating and discussion is fine, we will not tolerate rudeness, profanity (or attempts to bypass profanity filters), insulting posts, personal attacks or purposeless inflammatory posts.
Please refrain from posting meaningless topics, one word (or short) non-sense posts, or the equivalent.
The FAQ states "They are used for support, to share ideas and for a variety of different topics.". I see that both of you ( adriansto and xcopytech ) have an history of expertise/knowledge and a legacy of hundreds if not thousands of comments. If there's something I'm doing wrong (in terms of behavior), it would be helpful for me and other users to understand what it is so that can be fixed.
Thanks.
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