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Thanks for the reply. Unfortunately the machine has been surplused. It may be on ebay by now...

Jack it up and slide a new one under it.;)

Seriously, I believe it is the laser in the magenta position causing the problem. Could it be something in the laser unit besides the laser?yes. am I...

Thank you all. The machine is fini.

Well, I swapped the black and magenta transfer rollers, cleaning things up along the way. Still no magenta.
Pondering...

The problem did not move with the cartridge. Correct me if I am wrong, transfer issue or Laser issue.
Thanks!!

I jus found this in the manual. It looks like it enables cartridge swap.41948

Thanks and I appreciate all the valuable and thought provoking input. I do not have a spare transfer belt unit and I don't want to pop for a new one so I am going to take the belt and rollers off the...

I did a stop test and I have no magenta on the drum. I found out today that the magenta cartridge is definitely new and genuine Lexmark brand. I also swapped the drum again and cleaned the ground...

Very plausible. I will swap the roller.

Did that, no change.

Nope, that's not the case. i know enough about digital boxes. Am I a Lexmark tech, no. I got my nose dirty on Sharps for 20 years and Canon, Minolta and Mita for 5 years before that... Last machine I...

Better image of cartridge info

41917

The 1st Print quality page indicates no magenta toner when there is clearly magenta toner in the cartridge. I can see magenta toner in the window on the back of the cartridge.41916 I have not tried...

Thanks for your reply. Last week was crazy in the office so I didn't get to check in. I have separated the belt section from the cleaner unit, cleaned and inspected it and put it back together. I...

I am quite sure the toner is new, have you seen issues like this with these magenta toner units right out of the box? Just to clarify, there is toner on the mag roller. When I wipe a small area on...

Thank you. I am very rusty at troubleshooting, especially color and more experienced with Sharps so anyways I appreciate your help and patience. I will keep you posted.

Yup. No magenta. Lots of Cyan and Yellow buttons and black print.
41795

Yes, magenta. I checked what you said even though i was 98% sure everything was installed right and unless I’m missing something very tiny it all looks good. If I wipe a small area on the magenta mag...

I forgot about Hytec, good to hear they are still in business. When I last worked for a Sharp dealer, we dealt directly with Sharp for our parts and board exchange. That was 2010 though. Thanks for...

I was a Sharp Tech for 20 years, I have been out of the service field for some time. I work in an office with a large number of MX-M453N's. Overall they are pretty reliable machines. We have one...

Greg, I'll check it out tomorrow and let you know. Thanks!

We are scanning to email a high volume of documents and when we have a document feed jam the file sends and we don't want it to because obviously it's incomplete. Is there a setting we can change or...

You are getting the short end of the stick. You not earning your full potential. Get out from under management and learn the ropes of starting and running your own business. Is it easy - no. But when...

Ok here's a little bit more to go on... in test command 2 sub 3 SPFM won't turn on.

SPFM Transport motor Stepping motor Drives the transport roller.

Check your neutral to ground voltage on the wall outlet... it should be lees than a .5 vac(check it with the machine unplugged). If it's more... that issue needs to be addressed first. Make sure that...