KM4050 with 4200 error code

[aodtech]

I have NEVER seen an LSU go bad on a Falcon. C-4200 is generally an arced Main Charge. Don't bother cleaning it, just replace it. You can even use a Falcon 1/2 MC. That has always resolved that issue for me. If an LSU is actually bad, you will know it. If you have worked on any 1810 or 2050, you (and the entire city block) will know this.

[blackcat4866]

I have NEVER seen an LSU go bad on a Falcon. C-4200 is generally an arced Main Charge. Don't bother cleaning it, just replace it. You can even use a Falcon 1/2 MC. That has always resolved that issue for me. If an LSU is actually bad, you will know it. If you have worked on any 1810 or 2050, you (and the entire city block) will know this.

Agreed. I remember a Canon fax L770 series fax at the airport, that sounded like a plane was landing every time they received a fax. Of course, they were quite used to that sound, and didn't even notice until it coded. =^..^=

[vikingmita]

or old panasonic copiers who lost their balancing weight (yes, they used that, and they were glued on)...jet plane! cool, but not really functional :P

[jrs157]

I have NEVER seen an LSU go bad on a Falcon. C-4200 is generally an arced Main Charge. Don't bother cleaning it, just replace it. You can even use a Falcon 1/2 MC. That has always resolved that issue for me. If an LSU is actually bad, you will know it. If you have worked on any 1810 or 2050, you (and the entire city block) will know this.

I have a suspicion about the MC now that you mention it. The history of this machine has been "black copies". I noticed the motor assy was removed as a fix for the copy quality issue and the MC assy has been replace a couple times.

[tech07]

replace main charger...never had a bad laser on this model

[teconcopier]

interesting PDF madas. The KM5050 has no ferrite core attached to the wire bundle going to YC8

please replaced or cleaning main charger