Canon Image Runner 1025if and Phone Line Noise

[Guest]

Hey y'all,

I've got a Canon Image Runner 1025if and it's causing me some major headaches. Everytime it copies or prints it causes phone line noise in the phone next to it. The noise is so loud that conversation is near impossible. And being as they are located at a business that uses both the phone and printer frequently it's been a real pain. The phone line is on a filter and the phone is a NEC.

Please forgive me for any details I didn't mention. I'm not the most tech savvy person out there. But let me know what I forgot and I'll tell you as quick as I can.

Thank you so much for any and all help!!!

[mrfixit51]

You did not mention if there is a phone line plugged into the fax port, does the copier have a phone line in the port, and if so does the noise go away if the fax line is unplugged???

[esdogdoc]

You did not mention if there is a phone line plugged into the fax port, does the copier have a phone line in the port, and if so does the noise go away if the fax line is unplugged???

Oops. Yes there is a phone line plugged into the fax port. I tried unplugging it, but there is still noise on the phone when it prints. The funny thing is that the noise sounds quite a bit like fax noise, but I was not faxing. I just printed a page.

[blackcat4866]

The next thing to look at is how the wires are routed. When you have high voltage lines routed together in close proximity with low voltage wires, the high voltage lines can induce a current in the low voltage wires. The thing to do is to separate the various cables, and cut any wire ties if various cables are tightly bundled together (AC power, network, phone/fax, etc.). And don't coil up extra lengths of cable. Just let it lay loose.

You might also try to plug in the copier on a different electrical circuit. If that helps but the copier must remain in the same location, run a dedicated outlet for the copier.

I don't know if this particular Canon comes with a ferrite core, but that might help also. A ferrite core is a small iron loop that the phone line is wrapped around to disrupt induced currents. It is usually installed within 2" of the fax card.

I suppose that it is possible that the copiers power supply could cause noise on the power line, but IMHO that is quite unusual.

Please let me know if any of these help. =^..^=

[D_L_P]

Good call on the power supply and cables. Power cables running parallel with signal lines can cause communication problems.

I'll second the power supply, especially since there is no phone line connected. I haven't seen it but know other techs that said they replaced a power supply due to noise.

This might be a long shot but I remember some older Canon Fax machines used to have communication problems caused by bad ground contacts.



If all that fails it might be a the wiring in the building..?

[zoraldinho]

hammer.jpg

[esdogdoc]

If all that fails it might be a the wiring in the building..?

I sure hope not!

I can't find a ferrite core on the machine. I'm gonna get some help to move it, and look harder. But I'm not too hopeful.

The way I have it wired now is the phone cord runs directly to the left into the phone. The phone cord for the fax runs to the right and through a filter then to the machine. The two cords don't cross.

The power cord for the computer (which is between the Canon and the phone) is laying on top of the fax cable, but no where near the telephone cord. Could it still be causing the noise? I'll have to see if I can rearrange all these cords. Haha!

[blackcat4866]

This is what I mean by a ferrite core:
Parts Express Ferrite Core 1/4" Cord Noise Suppressor
Just wrap two or three loops of the phone cord through the ferrite core at the end of the cord closest to the fax card, then snap it shut. =^..^=