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| May 2011 |
| Subject: Minolta C252 transfer unit won’t reset—Part 2 |
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Question:
Since the last post, I’ve installed a new transfer belt that won’t
reset the indication. But when I put the belt in another machine,
it reset it fine. The fuse isn’t blowing. The total on the meter
board is 64,500, but the transfer life is 128k? I upgraded f/w,
tried a new belt, but no change. Swapped NVRAM, new belt, no
change. Swapped main PWB-MFP on back, new belt and still no
change. Where in the heck is it saving the transfer unit count? Do
I need a bigger hammer? Answer: If you are unable to reset the counter after a new Transfer Belt has been installed, C-FB55, C-FB56, C-FB57, C-FB58 error codes may be intermittent. Probable causes are: 1.Electrical noise (static) generated at the transfer belt unit section can affect machine control. To improve the new detection accuracy of the Transfer Kit, the method of installing the point of the contact to the rail has been changed. Install the modified grounding spring onto the frame of the transfer belt unit. Please perform the procedures mentioned in Bulletin Number 5186 (bizhub C250/C250P/C252/C252P) and Bulletin Number 5627 (bizhub C300/C352/C352P). 2. The two terminal plate/contacts that come in contact with the Transfer Belt are contaminated or are not making proper contact preventing the reset fuse from opening. For this, you can clean and adjust the terminal plate/contacts as needed. 3. The wires to the transfer belt unit may be disconnected. Remove the left cover (p/n 4038 1024 04) and verify there are two wires connected to the transfer belt unit connector. The upper connector should be blue and the lower connector should be red.
4. The replacement
transfer belt unit is used and was previously installed in another
machine. When a new transfer belt unit is installed in a machine,
an internal component on the transfer belt unit changes state;
this now indicates that the transfer belt unit is used. A new
unused transfer belt unit must be installed; this will reset the
life counter for this unit. Transfer belt for bizhub
C250/C250P/C252/C252P -Item #4038077700 Transfer belt for bizhub
C300/C352/C352P - Item #9J06R70400 |
| Subject: Sharp AR 207 |
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Question: I
just changed the toner by using the bottle method, but the toner
light won’t go off. I can hear it cycling, but the toner light
stays on and the ready light won’t come on. I’ve done this several
times in the past, but this time it’s not working. What could it
be? Answer: Try another chip, or maybe your toner sensor is toast. Or it may have been extremely under-toned. If it took a long time to tone up, check the toner motor rotation. If it’s a broken gear, it’ll try for days to no avail. Question: The toner light is still on and the upper fuser roller is cold to the touch. The lamp should be starting up and the roller should be hot when the machine is on all this time, right? Is there a connection between the two? Is this the cause of the toner light on? Answer: Pull the toner out and find the toner motor shaft at the inside back wall. It probably snapped where the drive pin hole is drilled. Order a new motor and it will have a steel shaft instead of plastic. Save the gear, spring and pin that fell out in the inside back. You have to remove the board in the back and most of the wiring in the plastic channels. It’s a simple but tedious repair. This usually happens when a newly filled toner is put in, because it’s the most hard to turn. Answer: The shaft problem is only for the AR200 and AR205 series. This is never the case for AR207 series machines. My guess is you did not replace your CRUM chip on your toner when you refilled it so therefore it still thinks it’s empty. Answer: I agree, it’s the chip. Replace it and you’ll be good. |
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