Subject: Canon IR 5070
Question: I have a machine that works ok upon boot-up. As copies are printed it seems the toner is not keeping up. The image starts washing out. When I run a power cycle, the first page out is decent again. Does anyone have any tests or verifications I can do as I am not familiar with this model? Are there any common failures? Thanks everyone.
Answer: Check the transfer corona.
A: Is it restring-able or do you have to replace?
A: If it’s restring-able, do all of them.
A: If all else fails, vacuum the developer unit, clean the developer blade, then re-install the toner through service mode. Good luck…I’ve seen this a few times.
Subject: Canon IR 5185
Q: I have a machine that won’t line up colored print or black and colors together. I got it to work for one copy after a cleaning cycle. What gets cleaned when cycled? I was told by one person to clean the belt unit, but that didn’t help. Any ideas would help. Thanks.
A: Enter Service Mode Level 2, Copier > Function > Clear, run REG-CLR, exit Service Mode. Correctly power cycle the machine. Perform a Quick Adjust located in Additional Functions > Adjustment/Cleaning > Auto Gradation Adjustment > Quick Adjust. If this fails to work replace the intermediate transfer belt (ITB). Good luck.
Q: This machine does not have a reg-clr mode. Is there another way to do the same thing? Thanks.
A: You’ll need to clean the inside of the ITB assembly. It is the loose toner on the transfer rollers causing the ITB to slip.
A: In service level 2, there is reg-clr for certain.
Q: Maybe I’m missing something—I’m not sure I know what level 2 is. *28* copier, function, clear….
A: The *28* will take you to level 2.
Q: Thank you, I’ll try that. I have cleaned the belt but I may go back and redo that as well.
Subject: Ricoh Aficio 2018d
Q: Ok, looks like I need help. I went in for lines and smudges on copies; the drum was beat and so was the blade. Simple, or so I thought. I replaced the drum and the blade with OEM equipment, but I still had the same problem, so I did a DV change—once again, OEM DV. Still, the same issue—what am I missing??? Any ideas greatly appreciated. Thanks in advance.
A: Could it be the charge roller?
A: Are the lines and smudges on the page before the fuser? If so, it could be the charge roller or a dirty laser unit. I would think any transfer issues would be more to the backside of the paper. Do you get the lines on the counter page (eliminate optics)?
A: Make sure the mirrors in the scanner are clean. Do not forget the laser filter glass under the toner bottle. How do internal prints look? This will let you know if it is a print or scanner issue.
Q: Yes, it is also on internals and happens before the fuser; I can see it on the drum when I remove it from the copier. I’ll try making sure the main charge roller laser is clean, thanks.
Subject: Konica Minolta C451 K IU Spilling Developer
Q: Even after replacing the IU, I’ve had many machines start spilling developer from the K IU.
A: Have you put the mod in to help keep the unit locked into place?
A: The mod is just a rubber pad you stick on the inside of the IU locking handle. I usually just cut up some rubber pads and stick on the handle. The IU has to be tight, otherwise it arches on the contact causing it to dump. Good luck.
A: There is a bracket as well.
A: Have you cleaned up all of the toner/DV that is spilling in the back? If not then it can continue to draw out more DV from the new IU. There is a metal bracket that mounts at the top of the IU to hold it in (this is a mod part from Konica). Also it sounds more like you might want to make sure that all of your HV settings are at default. And if you are still having problems, replace the HV.
A: If all else fails, replace the high voltage unit—the machine has two, but I can’t remember which one it is. If you have the manual you can see which one supplies voltages to the black IU.
Subject: Biz 601 Jamming fuser
Q: Paper jamming coming up from under the fuser when face down. It does not jam when using 8.5 x 11R (portrait) direction from trays 3 and 4. Also, it’s ok from any paper tray when exiting face up. The de-curling roller looks fine. What else would cause this? Thank you.
A: What is the jam code? What you are describing could be the feed sensor that is just after the fuser—it could have a broken mount.
Q: The jam code is 3203. After looking at it again the paper jams as it comes up from ADU and folds on one side about 1 inch— the folded side of the paper looks like it is trying to feed under the de-curling roller. Thanks again.
A: I think there is a one-way gear that sits on the shaft from the turn handle that turns the fuser rollers. Check this one-way for slipping. You also might have to change the de-curling roller even if it looks ok. Good luck.
A: There are a few Mylar’s that can get bent in the wrong direction. There is a set in the exit section and a set in the Auto Duplex Unit (ADU). Pull down the ADU and it should be in the far upper left side, which is difficult to find and get at.
sThe paper enters ADU. I had to lie on my back looking up inside while pulling the ADU door down to see it. I used some thermistor tape to repair until I get new Mylar’s. Thanks.
