[CQ] IR7105 solid black prints intermitant

[viczulis]

Ok once again. Copies and prints look great but during run the macine will print out solid black copies.Once it starts this it won't stop until jam or out of paper. Upon startup prints again look great . Potential control isn't it. Replaced primary charger. Swapped HVT assy.Swapped out #1 paper feed assy.Swapped out entire #1 unit inside machine. Any body else see this please help. Thanks

[Rachid.Akli]

Re: IR7105 solid black prints intermitant

Send a print sample.

Rachid.

[viczulis]

Re: IR7105 solid black prints intermitant

Send a print sample. Solid Black copies very solid and no error codes when this happens. Will stay solid till stops. open close door back to perfect copies. It may run 10K and not do it once. Then it might happen on a small run. Also desnt matter if its a print or a copy. Machine has been updated to all current versions . .................................................. .................................................. .....

Rachid.

Thanks

[viczulis]

Re: IR7105 solid black prints intermitant

Send a print sample.

Rachid.

Ooops The print is very solid black. Machine does not post any error codes. All software is at current levels . will do this on copies and prints. while it is doing this if i force stop it and let it start up again without turning it off the copies come out perfect agian

[Iommanxman]

Re: IR7105 solid black prints intermitant

Capture.JPGSee attached. Does this help?

[viczulis]

Re: IR7105 solid black prints intermitant

[ATTACH=CONFIG]15737[/ATTACH]See attached. Does this help?

Thanks. I swapped the entire #1 unit inside machine. Potential control off or on does not help. may be DC controller but that says only on A4/A3 size

[Rachid.Akli]

Re: IR7105 solid black prints intermitant

In this model, the neutral drum surfaces receive toner (the surfaces being discharged by the laser beam). In your case, i imagine that the drum is not charged at all. So, you've got to verify for a loose connection between the primary corona and its corresponding HV connector.

Rachid.

[viczulis]

Re: IR7105 solid black prints intermitant

In this model, the neutral drum surfaces receive toner (the surfaces being discharged by the laser beam). In your case, i imagine that the drum is not charged at all. So, you've got to verify for a loose connection between the primary corona and its corresponding HV connector.

Rachid.

your Image formation is correct . I cannot figure out why I am not getting any HV error codes or any E020 codes when this happens.The hard part is ai cant make it do it and I cant stop it from doing this.

[viczulis]

Re: IR7105 solid black prints intermitant

your Image formation is correct . I cannot figure out why I am not getting any HV error codes or any E020 codes when this happens.The hard part is ai cant make it do it and I cant stop it from doing this.

More to update. Today I swapped out. Dev unit.DC controller. Entire drum assy.Still same results
Still same results first copy comes out great next copies come out solid black slight halo around print then all black about 3 sheets in. Start up again 1st sheet good then same. I am leaning toward laser assy

[zoraldinho]

Re: IR7105 solid black prints intermitant

Read PDF........solid black.pdf

[addoncopier]

Re: IR7105 solid black prints intermitant

My friend, I'm having the same problem. I do swapped out the Dev unit,DC controller, entire drum assy, laser assy,power supply board (3pcs). Still remain intermitent black print.

More to update. Today I swapped out. Dev unit.DC controller. Entire drum assy.Still same results
Still same results first copy comes out great next copies come out solid black slight halo around print then all black about 3 sheets in. Start up again 1st sheet good then same. I am leaning toward laser assy

[Canuck]

Re: IR7105 solid black prints intermitant

You swapped d-con...is it new style d-con? When you say drum assembly do you mean entire process unit? Is there any image at all when its black? I have had to replace the wiring harnesses at the front of the process unit for shorts,open connections causing intermittent black copies, poor quality,etc. This harness contains wires for pre-exposure lamp,potential control sensor,vibration motors,etc. Replaced a few..actually got one in the shop on the shelf. Give this a try unless you've swapped entire unit.

[Canuck]

Re: IR7105 solid black prints intermitant

Sound like loss of pre-exposure or bad laser

[addoncopier]

Re: IR7105 solid black prints intermitant

Sound like loss of pre-exposure or bad laser

Laser swapped bro. Lastly the problem solve with unit 1 swapped.

[Canuck]

Re: IR7105 solid black prints intermitant

Unit 1 meaning entire transport drawer? Glad it fixed it but whats wrong with drawer? Possibly ufr bushings on wrong(happens a lot) causing short or possibly ufr ground clip on the rear heater cap. I've seen poor contact between the clip and the metal spacer on the ufr cause weird problems. Or fuser bias issues from the wiring in the drawer. Glad its fixed...see if you can find the problem with the drawer