-
-
Re: Canon NP 6050
Oh great! I thought it was going top be easy. Well I guess it will be once you find it.
Ok here we go: check the bypass door switch. Believe it or not if it doesnt work right there will be no 24 volts for your hvts.
Oh and here is a thought. turn off potential control and see if that works. Be sure to reboot machine after the pot. control is turned off. Did you by chance mess with the hvt and forget to plug a wire back in? I have seen the hvt transformers go south. Now I am just giving you ideas. Here is another, pull the pretrans assy out of the machine and reboot machine does it work now? It could be shorted.This sounds crazy too, but I dont remember on this model or not if there is a connector on the back side of the transport that goes to the fuser. If so unplug it. maybe it is the fuser bias shorting it out. This will tell if it is or not. I am running out of ideas......... How about the reg clutch is there a wire at the clutch shorting. Is the clutch mounted firmly and pinned into position?
Maybe you just dont have 24 volts to the hvt because something is shorting the 24 volt line somewhere. Or maybe the claning erase lamps are stuck on. take a peak inside the machine with front door open and see if the red lights stay on. Arent these attached to the pretrans? I think they are. Pulling the pretrans should prove that. It has been years since I have worked on this machine. So give me some slack here. Hope some of these ideas help you.Comment
-
Re: Canon NP 6050
Did you check the dv clutch yet?Comment
-
Re: Canon NP 6050
I you want to see if it is the dev clutch, pull the dev unit out, look at the dev roller does it have toner on it? if not then dv clutch could be at fault. rotate dv unit by hand replace in machine and see if you get any prints. If you do and it is just at the lead are and then fades out then dv clutch is at fault.Comment
-
Re: Canon NP 6050
bypass door micro switch is ok. i already put a shorting wire on its plug. pre transfer assembly is also removed. no shorting wire on registration clutch. i suspect that 24 volts to hvt is being cut due to something that shorting it out. drum heater (inside the drum) is ok. thanks for the ideas.try to troubleshoot more. just take a rest.Comment
-
Re: Canon NP 6050
Oh my a tough one. you can check output from the hvt directly from the tranformer if you like. But I suppose you should check to see if you have 24 volts at the hvt first. I wonder if the signal is being sent from the dc controller to turn on the hvt. But here is a trick. If you have an neon bulb an NE-2 type say from an old electric blanket controller all you need to do is put a 1 megohm resistor on one leg of the neon bulb, any leg and just leave the other one not hooked to anything but tape it up so it doesnt touch anything. Then use the end with the resistor attached as a probe. You can use it to probe high voltage such as from an hvt. The neon bulb gas will light up with 90 volts ac. Beats fouling up a meter cause it will. So here is my thought, do you really have 24 volts at the hvt, you need to make sure. If that is ok then the next step is do you have high voltage coming out. You can also pull the cconnector on the hvt that goes to the trans/sep, the high voltage one, and just let the connector be about 2 mm or so away from making a connection with the connector it plugs into. turn on machine listen carefully for high voltage arcing to the connector.
If you have high voltage that would be good. Plug it back in. I remember you saying now no high voltage. But with this check you can no if there is high voltage and it is shorting at the corona assy area somehwere, if you do the check and hear high voltage arcing. If not then the transformer and or hvt assy is bad or it is not powered with 24 vdc or if it has 24 vdc then it could be the transformer. rare there is no signal to turn on hvt from the DC controller. I supppose if it was a laser problem the machine would throw a 100 code, unless the shutter is not opening up. But then the drum potential would change. Have you tried to turn off the potential control yet? This seems like the first thing I would do as that is easy to turn on and off.Comment
-
Re: Canon NP 6050
good day to everyone. i already solved the problem. its the primary charging corona wire spring contact to the terminal on the rear side of the primary assy. the contact to the spring is corroded thats why there is no charging coming from the wire to the drum. i disassembled the side plates of the primary assembly clean the contacts and replaced the corona wire. Problem solved!
I would like to thank all of you who give their ideas and support to solved the problem.
Again thank you very much.Comment
-
Re: Canon NP 6050
Never fails, something easy. good job. we will be asking you next time for assistance, you are the man!
Funny too as That had crossed my mind, but I guess we assumed that was ok. We can now add that to our list.
Thanks for replying back, that's a big help. Especially for the next guy.Comment
Comment