Bizhup PRO C6500 C-3508 Error Code

[drodas78]

Hi. I really need your help, again.

I got the C-3508 error code in a C6500. It has four consecutive jams in the fuser.

I have one observation to do: The machine is used mostly with heavier stock like 80gm - 300gm. The last week they printed for one client, it was bond paper 75gm and the file is a very covered image, it has several jams but not four consecutive, after this the machine was working without any jams in heavier media for several days.

Yesterday I got the error code C-3508, and the jammed was bond paper with 75gm weight for the same client with very covered images. This time four consecutive jams.

I don't believe that the fuser is bad. I think that the reason would be some mechanical issue, maybe the machine has problems handling the bond paper.

I didn't set the DipSW 3-1 to 0 because of the warning of cause a fire stated in the service manual. I want to know what do you think? do you think that I have bad fuser? Can I reset the error code without setting the DipSW 3-1 to 0 and try to print in heavier stock to see what happen? What would be the cause of the problems handling bond paper?

[StormyKnight]

I have heard that with jam code J3102 that the fuser drive motor (M29) may have internal damage & would need to be replaced. It can also be damaged if the gears in the drive mechanism are damaged as well so it may be worth checking that you have no broken teeth. Thirdly, the one-way gears in this unit can also fail. The main motor is driven in reverse to lower the pressure roller &driven forward to drive the fuser unit. Drive to the fuser is only initiated once the paper is very close to the fuser & stops between each page. A faulty one-way gear will result in no drive to the rollers. And forthly....the shafts that the one-way gears are on may also be worn if the unit has had a fair bit of work. This will reduce the diameter of the shafts making the one-way gears malfunction.

With regards to SW3-1, this is used to reset the error code. Because these error relate to the fuser unit, it may be possible that a malfunctioning sensor may result in the fuser unit overheating.....also if a piece of paper is blocking a sensor it may aso over heat. If you have confirmed that there is no paper remaining then I believe it will be fine to reset the error....I believe you have a mechanical problem with the fuser drive rather than an electical problem with the temperature sensing. This is borne out by the SC code you are getting & the jammed paper.

Cheers

[drodas78]

It was the paper

Hi. I went to the machine and checked all the gears and shafts but nothing seems damaged. So I reset the error code setting DipSW 3-1 to 0, restart the machine and it's printing well again. No jams, and fusing is working well.

I think that I got the 4 jams because of the type of paper: bond paper printed in Normal 75 - 80 g/m2 with high coverage. Yesterday I told the user that they can't print on this paper type because I tried in heavier paper and everything worked well. Months ago the machine was able to print without trouble in bond paper. Can you suggest something to clean, replace or try, so the machine can handle bond paper without problems again? The machine has about 120K total prints.

[mrwho]

[imthinman]

check the drive rollers on the right side of drawer

Sounds to me like a thin paper jamming problem. The drive rollers on the right side of the drawer often become separated due to jams caught between the rollers and the trays will often wad up and separate the plates causing thin paper to jam, Which then causes the error. Check if the white rollers turn freely the plate is bent squeeze them back and it usually helps.

[jma676]

Only Check This: Fusing Temperature Sensor, sometingh wrong in the sensor maybe paper jam.

[jma676]

Sorry for my Inglish ( Something )

[albasoul06]

C6500
Tray 1, 2 and 3Bypass Tray: 17 to 81 lb Bond
Tray 4 (PF601 Upper tray): 17 to 68 lb Bond
Tray 5 (PF601 Lower tray): 17 to 81 lb Bond

Large Capacity : 17 to 81 lb

[jasonschuck]

Similar Issue

I'm having a similar issue. Printer jams at the fuser repeatedly even after toggling DipSW 3-1 on and off. Seems likely that the fuser drive motor has gone bad. I'll post how it goes.

[djteck]

I would also check if the fuser drive modification as per bulletin 5923 was done. Though this was intended for code C-3102, when the fuser drive vibrates you can get some odd problems.

[jasonschuck]

Turns out a bearing on the fuser roller was frozen. Replaced the bearing and everything is running fine.