I'm having trouble with this. The copies made are very light/blurred. I've changed most of the parts usually connected to light copies, TD sensor, Developer, etc. But after a few hundred copies, it's back to light copies again. Is it possible the main control board is defective? Seems like the machine is not supplying enough toner to the development unit. Help me..
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That looks like the older Ricoh Aficio 550. Take out the dv unit, take off the toner hopper, disassemble the toner add plate (has pinholes in it.)
Check to see, when you turn the knob, if the toner shoots out of all of the holes or not. If you haven't checked this, it may be your problem.Bachelor of Science in Information Technology, Comptia A+, Comptia Network+ -
There's a bearing in the rear.
There is a bearing in the back frame that the long part of the end of the bottom mag roller fits into and it has a conductive bearing that goes bad and you lose some of the dv bias. I know this is an old machine so I am sure you rpobably need to replace if you haven't ever heard of it.
It is in the parts breakdown in the drive section. You will have to get to it from the rear of the machine. It's fun, pack your lunch.
The later model they got rid of that if that tells you anything."Some days you get the bear, some days the bear gets you."
Cdr. William RikerComment
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Yeah, that was very fun stuff, but i've replaced it a few months back. Got through brunch, lunch and tea doing that.
The thing is that i have to pump the toner manually/using SP2207 and SP2963 to get enough toner into the hopper. It's like the machine is not telling the toner supply motor to pump toner when the hopper is almost empty. Can u understand what i'm trying to say? SOrry for my bad english.Comment
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What about the ID sensor on the drum unit that reads the density of the test patch.
I know I've had that before just trying to remember."Some days you get the bear, some days the bear gets you."
Cdr. William RikerComment
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Have you also checked the toner recycle system (part #15) and related tubes? Although those have generally been associated with service codes, I'm wondering if they are plugged. I have definitely had those clog up in the past. Also, AX200093 toner add clutch. Have you test ran the output 5-804, ran the dv motor (w/o the drum) and stacked the clutch to see if it turns? Those dv toner add clutches will go bad.Bachelor of Science in Information Technology, Comptia A+, Comptia Network+Comment
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If pumping the toner brings the CQ back then the basic system is OK. There was a bulletin that addressed this. It si a procedure to go thru when light copies occur.
But first I would set the toner clutch for more on time, lower the value. It hink the default was 650, drop it to 450 or 500 and see what happens. If your customer runs alot of heavy blacks, you can drop it even further. I have gone to 300 on one of my accounts.
Also make sure that 2210 is at 10 (ID sensor interval)
Good luck, I like this machine.
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You never realize how cheap a professional is until after you let an amateur do it.
A+; Network +; PDI+Comment
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i have had this problem before with a number of them. you can go in sp mode and force toner also and it will come back to dark. however if they have lowered the volume on the machine and dont run enough copies it will come back. the average volume needs to be 15 to 20 thousand a month in order for the machine to add the toner rite..
hope this helpsComment
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are you using original toner?
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