Ricoh 6513 / Savin 413c

**Rocket Psyantist** · 09-11-2007, 02:40 PM

I maintain two of these machines and they seem to do very well for me. Although I canot say I have seen the exact thing you are describing I can tell you that the paper transfer lift clutch, and the transfer cleaning blade positioning clutch (that might not be the exact name for it but since I have had no caffine this morning then it will have to do) have been a problem for me in the past. A page being printed in magents only is a good sign of the PT lift clutch going bad. Check your service code history. Also check the transfer belt over really good. The gold mirror plate on the bottom side being dirty can cause color shift sometimes. Dirty Charge corona wires and grid on this machine can also cause some weird things.Thats all I can think of for now. Hope this helps. You can email me if you have any questions as I dont get here very often kd5fsc@hotmail.com

**CEMT** · 09-11-2007, 03:29 PM

G'day Unisys12,

Originally posted by unisys12

Hey guys! We have a 413c that has started giving half light copies & prints on yellow only. The defect is on the non-operator side of the page.

Since I am not the tech working on the machine, the details are a little shallow right now. All I know is that the customer called the other day and placed the complaint. I am not sure of any prior service that was performed, so...

I will find this out tomorrow. One of the techs went out and verified the issue. First they replaced the developer, then after this didn't fix it, they replaced the developer unit (transferring the new developer over). Still, no fix.

I am not very well versed on this machine, but I suggested that they double check the seating of the unit and the hold downs. Tech said that they verified both and looked good. I also asked about dev bias voltages, but they didn't have them. If anyone else could chime in with something, I would appreciate it.

G'day Unisys12,
Front to rear is when you're infront of it (scan) and left to right is sub scan with first edge out, is the lead edge which is sub scan or that's the way I'm working.If you're getting a drop off from the L/Edge look at your paper transfer clutch and this can be intermittant, I think its gone to 0084 something as a p/n, if you sure, you're only getting 1 colour, check your 1 way clutch's on the dev drive at the rear of the turret, I ended up swapping a turret out to find a sticking colour.all the best CMET

**Copier_Guy** · 09-11-2007, 05:09 PM

I'm not familiar with that machine but I am familiar with that kind of problem on different makes and models. If, after checking all the other things listed, and of course the obvious stuff, you still have the problem, you may want to look at the optics. As CEMT mentioned, you described the defect as being in the "Scan" direction. (Front to rear). I don't know how the Laser setup is, but a dirty lens on the laser assy. can give this kind of problem. If this machine utilizes more than one laser unit, you may want to check the yellow laser for dirt build up or for faulty operation.
I hope that helps to spark an idea.

**unisys12** · 09-11-2007, 11:13 PM

Thanks guys... The machine in question will be in our shop tomorrow, so I get to play with it. I will let everyone know what's what and maybe even post a scan or two.

**Tonerbomb** · 09-12-2007, 12:13 AM

these units are also known to have dev bias problems. thats why mother ricoh recomends useing her bias grease (ks66) on the dev terminal and the bias ball. Check the revolver hold downs forthe yellow. Also what kind of media are you printing on??

These are what I call a high maintenance bitch, but I rate them as the most punishable machine I've serviced. I've had customers run things through these that make some tech's run away scared.

**unisys12** · 09-12-2007, 12:37 PM

Originally posted by Tonerbomb;

These are what I call a high maintenance bitch, but I rate them as the most punishable machine I've serviced. I've had customers run things through these that make some tech's run away scared.

I agree. Our dealer has 3 left in the field, all located in print shops. This is the only machine that can run everything from NCR paper to Kromecoat, with hardly no issues. Since we only have 1 in my area, I have not been to school on it and have been slowly learning about the machine over the past year or so.

On another note though... I got a chance to look at some samples, from the machine in question last night, after staying over late to tear into another machine. The defect, as noted above by the customer, is not really as described. Actually, from what I could see, it is actually banding yellow across the page when printing a solid green page. This leads me to believe that the issue is not with the yellow unit, but more with the cyan unit. When coping the C-4 test chart, the problem is not as pronounced. Actually, you don't even notice it.

When I get to the shop this morning, I will tear into the machine and see what I can find.

**Tonerbomb** · 09-13-2007, 12:45 AM

check the developer drive clutch. Also if the banding is consistant intervals on the page there are several TSB's for banding on this unit.

**unisys12** · 09-21-2007, 12:12 PM

Ricoh 6513 / Savin 413c - Update!

Hey! Just wanted to give an update on this one. Things have been pretty busy, so I haven't had time to really work on this thing. But I have managed to work on it here and there.

First thing first - Tried to verified the problem and found that what was happening was the copies were slightly lighter on the top side of the copies. Notice I said copys. Prints actually looked a little better. Also, the problem was not isolated to just yellow either. It was all colors. I placed a blank sheet of 8.5x11 on the glass, went into Custom Colors, Background Color and chose each of the 4 subtractive colors and made a single copy of each. Then I did the same with Red, Green and Blue.

Once I was able to verify that the issue was not really with printing as much with coping, I did what any half decent tech would do and opened up the optics. Found that the mirrors were purple from all the film on'em. Cleaned that smack off with some alcohol and that improved things greatly. I was also sure to remove the lamp and clean all the reflective areas in there as well. That helped tremendously!

I then pulled the laser sheild and found a bunch of goo and foam on the rear side of the glass. I cleaned this off and the prints leveled right out.

Finally, I calibrated the copier followed by the Fiery controller and all things are happy on this 413c. For now anyway! I have another one that pissed at me now, but that's another post. Thanks guys!!

**Copier_Guy** · 09-21-2007, 05:03 PM

Dirty Optics will do it to you everytime. Glad you got it.

**Tonerbomb** · 09-21-2007, 06:53 PM

Good job! these are some of the problems that a complete call solves everytime

Ricoh 6513 / Savin 413c

Ricoh 6513 / Savin 413c

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