Last Monday turned into a real Monday. I found a voice mail from an important customer left over from the previous Friday, threatening to toss the Bizhub 600 out of the window. I go and find it is just jammed. I clear it and clean it and change the feed rollers and test it. An easy fix. As I watch it run, I see an image quality problem. Black lines that are what I call "charge burns". Now normally if I see this, parts re old and I would change the grid or the whole unit. However, I put a brand new unit in last week when the cleaning section clutch failed and dumped toner all throughout the machine. I pull the drum carriage , take apart, clean and check everything. Still have lines. I do this a couple of more times checking everything because these are charge burns and this does not make sense. I have a back up plan. There is another machine 20 feet away in the hall. I grab the carriage from it and install. My copies still have lines. They start as one at the top of page and then multiply. I start swapping the parts between the 2 carriages in an effort to make a change. Still sucks. I put it all the parts back in the correct machine and leave. Next day I come back, thinking I may have an HV problem. I have checked and played with grid voltage, and finally break down and call tech support. When the guy gets on, I tell him all I have done, he makes some guesses and I explain why he is off the mark. I fax him samples of the defect and he finally tells me "Sounds like you covered everything, I am not sure what to tell you. Call back and tell us what you find". I swear that is what he told me. I didn't even yell "WHAT THE FUCK" at him, as I was busy still trying things. I left, my gut still saying I have a charge issue. On Wed, I come back and go to a third 600 on the other end of the building. I test it, makes beautiful copies. I pull the carriage and take it upstairs and instal in my problem child. As it starts to boot up, it codes for the charge. I pull it out, check it and re install it and it codes again. I swap the charge with the new one and then it boots up and comes to ready and makes beautiful copies. I pull up a chair and watch it run for 40 minutes. I put the problem carriage back in the machine on the other end of the building and leave. i will come back tomorrow and find the problem as I am way behind right now. I return the next day to finally find out what is wrong. I make a few test copies and they are great. No lines, beautiful copies. WTF? Oh well, why tempt fate, I leave it alone. Next day I am delivering supplies to the building and go to make a copy of the ticket on the first machine I tried to use for swapping parts. And there are those goddamn black lines again. It is just a charge issue. I go through the same steps. I pull the carriage and clean and check it all and put it back in and it makes beautiful copies, just like it should have. I don't know what I missed and I don't care, the shit works.
Now yesterday everything went my way. Everything was an easy fix, and when I went to get a pack of M&M's out of a snack machine, 2 packs dropped.
Now yesterday everything went my way. Everything was an easy fix, and when I went to get a pack of M&M's out of a snack machine, 2 packs dropped.