Subject: Toshiba e-Studio 280 Shows Misfeed
Question: The machine has additional paper trays that shows misfeed in the bottom access door in the lower right of the machine. I’ve replaced the sensor for the access door open/close. There’s no misfeed that can be found and opening/closing the access door doesn’t immediately clear the display message. The customer says it goes away in 5-10 minutes on its own, but the misfeed message sometimes reappears when someone picks legal paper. Any ideas?
Answer: An error code would help to diagnose the problem. Press and hold the clr and 8 keys together when it is in a jam state.
Answer: The above answer is right–I just want to add that if you want really useful help with a misfeeding/jamming issue, it would be great if you would print out the error history (START 9, 106) and post the last few error codes. I can usually get a good mental picture of what’s going on from that information. For example, the code you get from CLEAR 8 might just be “paper left in the transport path” but the code before it might be the exit sensor remaining on after the paper has reached the finisher. Think about it, and I don’t mean to sound nasty, but if you cannot provide better information than what we can get from the end user, then you might as well hand your tools over to the end user and go home.
Question: Just giving you what information the customer gave me and what little I observed on site. Thanks for the info. On getting to the error logs, I’m not very familiar with the Toshibas. This isn’t our machine and was a “while you’re here.” I fixed it a couple of times before and now I’m stuck with it. The machine also has 1,129,000 pages. Time for a new one I think. I’ll collect the error logs and let you know.
Answer: This is likely the Bypass Tray sensor, located on the bottom of the bypass tray. It’s a common failure item, especially on that model.
Answer: I agree with the previous post. If the error history shows multiple E550 errors then replace the sensor on the bottom of the bypass.
Question: Ok, I give up. How do I print out the error log on this machine? Start 9, 106 doesn’t do anything. I have a service manual on my desktop for an e-Studio 200L that I forgot about. It says 9 start. Is that the difference?
Answer: Hold down the 9 and Start keys together while turning on the copier. While holding them down wait for the Extension button to light, then release the 9 and Start keys. You should now be in the list print mode. Then key in 106 and the error history should print out. Also if you key in 103 it will give you the PM support list. Good luck.
Question: Got the error history list. I have 1-E712, 8-E721’s, 3-E731’s. Those are doc feed issues. I also have 6-E030’s and 2-E550’s. The E030 is a power on jam where paper remains on transport path when power is turned on. E550 is paper remaining on transport path when printing is finished. Sounds to me like a sensor flag is sticking down after the paper has gone by. Let me know what you guys think.
Answer: Good job! From that list I agree that you need to replace the 2nd Transport sensor. It is located under (and on) the bypass unit. While you are down there, and if you have an LCF, make sure that the transport rollers are good and clean. The idle rollers on the jam access door to the LCF might need their springs tightened a little too. Just a tip from experience. Good luck
Question: Thanks guys! Does anyone have a part number for the sensor?
Answer: 6LE09239000 is the most recent part number assigned to that sensor.
Question: Thanks everyone for all your help. I’ll get the part ordered and let you know how it turns out.
Subject: Konica Minolta C-550 No Control Panel Indicators
Question: When I turn the main power on, I only get blue and orange status indicator lights, nothing else. I replaced the DC power supply and the printer control board. Any help appreciated.
Answer: It might be the memory. If it has 2 memory cards on the MFPB try swapping them around. I had a C-353 that did a similar thing, and swapping the 2 memory cards around caused a different symptom.
Question: Just to add to this situation, the office had a power outage before all this happened. Could the memory boards have gone bad? I did swap them out. According to the service manual troubleshooting, I had no DC24V at PJ13DCPU-1.Thats why I replaced the DC Power Unit. Could it be some kind of interlock? Thanks.
Answer: I’m thinking maybe firmware, NVRAM, or MFPB. I think when I had the problem with the C-353 it would boot up into firmware mode when I had the CF card installed in the service port. It took the new firmware OK, although that didn’t solve my original problem.
Answer: I have seen this a few times after a power hit. Each time it was both of the memory RAM sticks. Try replacing them with ones from a working C-550 or get new ones. It is cheaper to start there.
Question: I pulled the memory chips from another machine and it fired right up! I also found a source for cheap chips; I will let you know if they work. Thanks a lot.
