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acsolutions
09-07-2023, 07:59 AM
Hello, I think I just need confirmation on my direction. Will feed from drawers 2 and 3 but when I try to feed from tray 1 it will feed a single sheet fine then jam everything else after. Sometimes when i start a new job and it will jam the first page and so on. Usually it will feed a few inches out or get to the registration roller then jam. I replaced the feed assembly with the same result. My next step is to replace the drive assembly. I'm assuming the one way clutch or a belt is slipping. Anything additional would be appreciated. Thank

GIUBOSS
09-07-2023, 09:50 AM
So you also replaced the magnetic clutch that drives the rubber rollers

kingarthur
09-07-2023, 03:38 PM
if you take out the paper feed unit, in the plastic of tray 2, there is a "spare" spring, it's not listed in the parts manual, but this is for thin paper, in the past, this has been swapped with the spring A161562800 on either tray 1 or 2, to prevent jam codes 10-02 and 20-02, the part number for the replacement "thin paper" spring is A161563000, it's not in any of the 8 series parts manuals, though it's definitely in the C258 paper feed unit, as I've just checked. if you have a C224(e) parts manual, you'll find it there, so you can see where it's located. if you have replaced the rollers and cleaned the needle bearings and it's still misfeeding - then I'd change this spring

femaster
09-07-2023, 03:50 PM
So you also replaced the magnetic clutch that drives the rubber rollers

There are no magnetic clutches in the tray 1 drive or feed units of the C458, unless you are referring to the registration rollers?

Gift
09-07-2023, 04:56 PM
Not shure if the drive is designed like the iSeries machines wich had some issues with a so called "fast clutch" leading to jamming issues with tray 1.

acsolutions
09-07-2023, 05:16 PM
So you also replaced the magnetic clutch that drives the rubber rollers

Yes,That's all part of the feed assembly.

acsolutions
09-07-2023, 05:30 PM
Basically the main drive drives tray1 and there are no clutches. I had a feeder assembly and swapped that out with same results. I guess the main drive is direct drive to tray.

blackcat4866
09-07-2023, 07:50 PM
Do you have a jam code? =^..^=

tsbservice
09-07-2023, 08:16 PM
Basically the main drive drives tray1 and there are no clutches. I had a feeder assembly and swapped that out with same results. I guess the main drive is direct drive to tray.

Paper feed motor plus one-way in drive of tray 1

Markks
09-08-2023, 02:42 AM
I've had the bushings for the registration get gummed up and only cause jamming from tray one. I would take out registration assembly and clean the bushings.

acsolutions
09-08-2023, 05:30 AM
I've had the bushings for the registration get gummed up and only cause jamming from tray one. I would take out registration assembly and clean the bushings.

I'm going to take a drive assembly out with me but if that doesn't work I'll check that out. The only thing that makes me hesitant is that it sometimes gets to the registration roller and sometimes it doesn't. It usually jams after feeding an inch or it doesn't get much past the feed rollers. That's definitely something to remembe. Thanks

acsolutions
09-08-2023, 09:33 PM
The feed drive assembly worked. Thanks for all your assistance.

blackcat4866
09-09-2023, 01:13 AM
The feed drive assembly worked. Thanks for all your assistance.

Congratulations on your success! It would help me to know what jam codes you were experiencing. =^..^=

acsolutions
09-09-2023, 06:04 AM
Congratulations on your success! It would help me to know what jam codes you were experiencing. =^..^=

I took it back to the store and disassembled, scored the shaft, Cleaned and lubed the shaft and bearing, reassembled and installed in the machine I pulled the part from. I ran several hundred copies without a flaw. The bearing and shaft were all gummed up that was the issue. Yeah I wish I thought about getting that jam code that could have been helpful to the next guy! Sorry

FuserNoob
11-14-2023, 11:21 PM
if you take out the paper feed unit, in the plastic of tray 2, there is a "spare" spring, it's not listed in the parts manual, but this is for thin paper, in the past, this has been swapped with the spring A161562800 on either tray 1 or 2, to prevent jam codes 10-02 and 20-02, the part number for the replacement "thin paper" spring is A161563000, it's not in any of the 8 series parts manuals, though it's definitely in the C258 paper feed unit, as I've just checked. if you have a C224(e) parts manual, you'll find it there, so you can see where it's located. if you have replaced the rollers and cleaned the needle bearings and it's still misfeeding - then I'd change this spring

I have a C458 and was giving a 20-02 error on tray 2 - I replaced the pickup/feed rollers, no go, clutches and torque limiter, no go, replaced mag clutch, no go, replaced the spring as described above and DING, we have a winner!

THANKS!

acsolutions
11-15-2023, 12:46 AM
I have a C458 and was giving a 20-02 error on tray 2 - I replaced the pickup/feed rollers, no go, clutches and torque limiter, no go, replaced mag clutch, no go, replaced the spring as described above and DING, we have a winner!

THANKS! those one way clutches slip on the shaft a lot. Pull the feed unit out and use fine sand paper or scotchbright to clean the shaft for the feed and the pickup rollers where the oneways sit.

tsbservice
11-15-2023, 06:19 PM
if you take out the paper feed unit, in the plastic of tray 2, there is a "spare" spring, it's not listed in the parts manual, but this is for thin paper, in the past, this has been swapped with the spring A161562800 on either tray 1 or 2, to prevent jam codes 10-02 and 20-02, the part number for the replacement "thin paper" spring is A161563000, it's not in any of the 8 series parts manuals, though it's definitely in the C258 paper feed unit, as I've just checked. if you have a C224(e) parts manual, you'll find it there, so you can see where it's located. if you have replaced the rollers and cleaned the needle bearings and it's still misfeeding - then I'd change this spring
So in that case we have to replace A161562800 with A161563000?

kingarthur
11-16-2023, 01:15 PM
So in that case we have to replace A161562800 with A161563000?


Not always, but it's always one of the things I try when i have a J20-02. the spring is actually hidden in the paper feed unit as a spare part, on the 7 & 8 series,
the iseries doesn't have it

There was a bulletin about 10 years ago :eek:, that said to replace that spring for J10-02 & J20-02

tsbservice
11-19-2023, 03:21 PM
Not always, but it's always one of the things I try when i have a J20-02. the spring is actually hidden in the paper feed unit as a spare part, on the 7 & 8 series,
the iseries doesn't have it

There was a bulletin about 10 years ago :eek:, that said to replace that spring for J10-02 & J20-02
Thanks again for the info, the bulletin is still a bit confusing but I would take your words as true every day.

Hansoon
11-19-2023, 07:13 PM
Would like to know the difference between those both springs. One is tougher? Or different length?

Hans

FuserNoob
11-20-2023, 04:23 PM
Would like to know the difference between those both springs. One is tougher? Or different length?

Hans

They are the same length, the difference is in the compression resistance. The 'thin paper' version is lighter tension.

Don N.
11-20-2023, 06:06 PM
SEE THIS BULLETIN FOR THE FIX:
Konica Minolta c458 (https://www.copytechnet.com/forums/konica-minolta/163140-konica-minolta-c458.html)

These gears & shaft affect tray 2 & bypass- 45/55/65 8 series.
(Quoting srvctec)
If you don't want to spring for the whole paper feed assy, the parts I used to repair the one that failed (so we would have a spare replacement unit available) are:
A79J223101
A79J226200
A79J226301

methogod
11-20-2023, 06:59 PM
before you do all that, you check the plastic hooks that lock the door into the registration. seen tray 1 and 2 jam when 3/4 dont and it was broken hooks.

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