DPC354

[copiman]

OK here is the deal. Customer says that the amount of toner left is at 1%. Stays that way for a real long time, and I mean a long time, before they get any indication that toner will be needed soon. This appears to have just started recently. They noticed it when they ran the counter list to report thier meter reading. I checked the toner and there is without a dought alot of toner left. First of all, with all the counters for something to do with toner, I am clueless what they all mean. Same thing for drum counters. I was told they do not count pages. Anyway, has anyone seen or heard of this? I went to Panasonic site to look at firmware but only found an exe. file with no documentation as to what it is for.

Oh, one other thing on the DPC354. Lets say I think a drum is bad. For troubleshooting, can I temporarily swap with another drum to see if problem goes with the drum, then put drums back in the original place? Would doing this cause machine to calabrate, adjust, throw counters off? You know what I mean?

[mojorolla]

Re: DPC354

There is a toner reset under the counter function menus. When the toner is changed, I have the customer reset that counter. There is also one for the drums. As for the drums, they are universal and can be swapped. If you pull the drum, it should be the color of maple syrup, kinda shiny brown. If it is turning green; time for a new one. If you want to test the drums individually, you can run test patterns F1 18-21 to run full coverage for each drum. That way you don't have to swap them.

[onetek]

Re: DPC354

Have a look at that bulletin.
Th.

[copiman]

Re: DPC354

There is a toner reset under the counter function menus. When the toner is changed, I have the customer reset that counter. There is also one for the drums. As for the drums, they are universal and can be swapped. If you pull the drum, it should be the color of maple syrup, kinda shiny brown. If it is turning green; time for a new one. If you want to test the drums individually, you can run test patterns F1 18-21 to run full coverage for each drum. That way you don't have to swap them.

Thanks Mojo. This customer has had this machine for a while and did not know about the counter reset when installing toner. When the machine asked for toner they just put in a new toner. Nothing else. I know that I will be asked, so I will ask you. Why all of a sudden would this happen. I was just informed today that the % left is based on 5% coverage per page. So, it goes by page. This is for info only so the customer can forsee the need to ensure they have a toner on the shelf. The only thing that can cause a low toner indication is the TD sensor. If it does not detect that toner was added when asked to, it calls for a "low toner indication", then if it never see toner, it will cause an "add toner" indication. Does this sound right? I know I'm getting deep, but I will need to explain. Let me know what you think.

[JustManuals]

Re: DPC354

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[blackcat4866]

Re: DPC354

Here's the explanation I give:

"The toner level indication is based on average usage. Inevitably once in a while you'll be consuming toner above or below the average usage rate. In those cases the % indicator is inaccurate. Eventually the TD sensor reading overrides the % use indicator, asking for toner add."

I believe that this explanation is accurate. =^..^=

[copiman]

Re: DPC354

Thanks everyone. The customer called late Friday and said the machine was calling for toner. She had just put one in a few days ago. I had her go in to the counter view and reset. This morning she called and said over the weekend the machine called for toner again and someone replaced the toner. This person did not go in the counters and reset. The % is right now at 100%. It should not be asking for toner. I will go by there today. Any ideas why it is calling for toner? Copies/prints look good. Total count on machine is 383k. 290k 0n black. 92k on color.

Dev unit counts ymc 154k bk 466k
developer counts ymc 59k bk 180k

Again this issue has just happened recently.

[copiman]

Re: DPC354

One more thing. They had a couple of E13-04 codes that started last week, with U13-04 in front of them.

[onetek]

Re: DPC354

This is exactly what the bulletin I posted is about. You need to read it and also upgrade your firmware.latest I have is scaav 30009pu,and ecaav20002
Th

[copiman]

Re: DPC354

This is exactly what the bulletin I posted is about. You need to read it and also upgrade your firmware.latest I have is scaav 30009pu,and ecaav20002
Th

Thanks onetek. The firmware is current. I did not do it. It was that way already. Where did you get all this info? I do not see it on the b2b site.

[mojorolla]

Re: DPC354

I am curious if the machine will display "charging toner" for longer than normal when a new toner is put in. If that is the case, try the following to diagnose a corrupt SC pwb:
-Go into service mode F9. Choose 03 Print Device Info, then choose 06 SC Board Checklist.
-It will show the memory cards and some internals of the SC board. Everything should say "OK" next to it. If any memory chips read "NG", you have bad memory, replace it. If anything under the LSI Access shows "NG" you have a bad SC board.

[copiman]

Re: DPC354

I am curious if the machine will display "charging toner" for longer than normal when a new toner is put in. If that is the case, try the following to diagnose a corrupt SC pwb:
-Go into service mode F9. Choose 03 Print Device Info, then choose 06 SC Board Checklist.
-It will show the memory cards and some internals of the SC board. Everything should say "OK" next to it. If any memory chips read "NG", you have bad memory, replace it. If anything under the LSI Access shows "NG" you have a bad SC board.

Just left the account. When I arrived, under the status button, it was calling for black toner. I opened the door and then closed. The display said "charging toner" for about 3-4 seconds. Not sure what is normal.

[mojorolla]

Re: DPC354

I was thinking more along the lines of 2-3 minutes of "charging". However, if the machine keeps calling for toner over and over, you have an underlying problem.

[copiman]

Re: DPC354

Just got back from account. Performed the bulletin for gear aligment od developer units. All were off. Firmware seems to be in order per the other bulletin ya'll sent. I did the SC board checklist and it looks ok. I attached a couple of things for ya'll to see. Checked to see if toner was getting to the developer and it is. No obstructions. Copies/prints are good. Any known way to check TD sensor? Is it possible to swap TD sensor with another dev unit if needed? Maybe to see if problem goes with sensor. Could developer be bad? It has 290k on black. Machine set up in 8/07 and has never had a developer change. 12-20-2011(2).pdf

[mojorolla]

Re: DPC354

The first thing I see is tray 1 jams, a lot of them. Those feed heads have a harness that run along the back. It can rub against the clutch and do all kind of odd things. They are the same feed heads on the 8oxx series. Does the customer store the toner on end by chance? You could also unplug the HDD if they don't use scanning or try the memory chips on the SC board.