MP501 after running 100 copies it hesitates and is light or blank

[DH1980]

I have a MP501 that runs 100 prints or so then hesitates and runs light or blank prints. After it sets for a few minutes, it prints fine.
Does this while coping from glass. Machines has 77k on it.

[luca72]

Re: MP501 after running 100 copies it hesitates and is light or blank

I have a MP501 that runs 100 prints or so then hesitates and runs light or blank prints. After it sets for a few minutes, it prints fine.
Does this while coping from glass. Machines has 77k on it.

the pcu, it should last about 80k pages

[DH1980]

Re: MP501 after running 100 copies it hesitates and is light or blank

the pcu, it should last about 80k pages

Thanks for the reply
The product support guide shows 500K on PCU

[luca72]

Re: MP501 after running 100 copies it hesitates and is light or blank

Thanks for the reply
The product support guide shows 500K on PCU

i havent that models, but i take a rapid look at the pcu photos on sm, i had seen, that similar at sp3600 pcu design.

500k with a little pcu?...what is highlander.?..LOL

now i at home, tomorrow morning i ask to my boss, he follow the ordering parts, and consumable, and relate information

[tsbservice]

Re: MP501 after running 100 copies it hesitates and is light or blank

Thanks for the reply
The product support guide shows 500K on PCU

No way...

I have a MP501 that runs 100 prints or so then hesitates and runs light or blank prints. After it sets for a few minutes, it prints fine.
Does this while coping from glass. Machines has 77k on it.

What about toner?

[DH1980]

Re: MP501 after running 100 copies it hesitates and is light or blank

No way...




What about toner?

Tried new PCU and new developer with no luck. Still runs great for 100 or so then light or blank.

[sandmanmac]

Re: MP501 after running 100 copies it hesitates and is light or blank

No way...

That is the stated yield. I don't have a lot of them out there, and none with very high meters, but I've been told 300-400K isn't out of the question.
Toner is rated for 25K

Tried new PCU and new developer with no luck. Still runs great for 100 or so then light or blank.

I did have one unit that I re-sold some time ago that started having a 1" blank band, and the dev unit was starved for toner.
I ran toner refresh in User tools / machine features/ maintenance, and it hasn't returned. That was about 6 months ago.
....worth a try

[copyaction]

Re: MP501 after running 100 copies it hesitates and is light or blank

Thanks for the reply
The product support guide shows 500K on PCU

Must be a Kyocera.

[sandmanmac]

Re: MP501 after running 100 copies it hesitates and is light or blank

Must be a Kyocera.

That it is.
M3550 I believe

[tsbservice]

Re: MP501 after running 100 copies it hesitates and is light or blank

Tried new PCU and new developer with no luck. Still runs great for 100 or so then light or blank.

Then next I would check is if toner is getting into development unit.

[tsbservice]

Re: MP501 after running 100 copies it hesitates and is light or blank

That it is.
M3550 I believe

Ahhh, that would explain it

[sandmanmac]

Re: MP501 after running 100 copies it hesitates and is light or blank

I did have one unit that I re-sold some time ago that started having a 1" blank band, and the dev unit was starved for toner.
I ran toner refresh in User tools / machine features/ maintenance, and it hasn't returned. That was about 6 months ago.
....worth a try

So, I'm re-visiting this thread on behalf of both myself and the original poster, whom I would like to provide any further info and / or solutions that he/ she has discovered (which is kind of the point of this forum after-all.....and just plain common courtesy).

I was just informed at the end of last week that what I thought was a "fix" for the blanking issue at my customer's office didn't resolve anything.
( They must be about the most patient and understanding people ever! ). They're not high volume users at all, and have just been using their old machine for the last several months .

I visited the office and the pages were virtually blank all over by this point. The dev tank empty. Lot's of toner in the cartridge. No low toner message, or errors of any type.

They informed me that running the "add extra toner" in User tools made no difference on their machine ( I know that I said I had done it myself, but I actually gave them instructions over the phone to run it.....and to call me back if it didn't help....they didn't).

So I ran it again myself just to be sure. It takes about 4 minutes to run the cycle, and it did nothing. I marked the gear on the toner cartridge to see if it moved at all. It didn't.
I tried a different toner cartridge. No change.
I installed an entirely different drum unit and and connected the dev unit, and ran the cycle again thinking there may be an issue with the board it plugs into (although I would have expected some sort of SC code??). It changed nothing.
I updated the firmware to the latest in case of some glitch. No change.

Finally, I entered SP mode and ran the output for the toner motor to check it, and it loaded toner, so there's no issue with the motor.
I ran the output, while cycling the machine several times to load up the dev unit, and it's making perfect copies, but only until it runs dry again.

Oh yeah, I also know the dev unit is fine, because when this initially happened last year, I swapped over their dev unit figuring it must have an issue, but when I brought it back to my shop and installed it in a machine, it went right into 'loading toner' and worked fine.

I know that's a lot of detail, but I wanted to be as clear as possible on what's been done and continues to happen, if ANYONE has experienced anything like this before.

[slimslob]

Re: MP501 after running 100 copies it hesitates and is light or blank

So, I'm re-visiting this thread on behalf of both myself and the original poster, whom I would like to provide any further info and / or solutions that he/ she has discovered (which is kind of the point of this forum after-all.....and just plain common courtesy).

I was just informed at the end of last week that what I thought was a "fix" for the blanking issue at my customer's office didn't resolve anything.
( They must be about the most patient and understanding people ever! ). They're not high volume users at all, and have just been using their old machine for the last several months .

I visited the office and the pages were virtually blank all over by this point. The dev tank empty. Lot's of toner in the cartridge. No low toner message, or errors of any type.

They informed me that running the "add extra toner" in User tools made no difference on their machine ( I know that I said I had done it myself, but I actually gave them instructions over the phone to run it.....and to call me back if it didn't help....they didn't).

So I ran it again myself just to be sure. It takes about 4 minutes to run the cycle, and it did nothing. I marked the gear on the toner cartridge to see if it moved at all. It didn't.
I tried a different toner cartridge. No change.
I installed an entirely different drum unit and and connected the dev unit, and ran the cycle again thinking there may be an issue with the board it plugs into (although I would have expected some sort of SC code??). It changed nothing.
I updated the firmware to the latest in case of some glitch. No change.

Finally, I entered SP mode and ran the output for the toner motor to check it, and it loaded toner, so there's no issue with the motor.
I ran the output, while cycling the machine several times to load up the dev unit, and it's making perfect copies, but only until it runs dry again.

Oh yeah, I also know the dev unit is fine, because when this initially happened last year, I swapped over their dev unit figuring it must have an issue, but when I brought it back to my shop and installed it in a machine, it went right into 'loading toner' and worked fine.

I know that's a lot of detail, but I wanted to be as clear as possible on what's been done and continues to happen, if ANYONE has experienced anything like this before.

What ever happened to SP 2207 Forced Toner Supply? Did they move it to Factory SP Mode like they have in the past with a number of other useful settings?

No issue with the toner bottle motor or its driver circuitry so that pretty much leaves the signal to turn on the motor on. Could be corrupted firmware or a bad board. Obviously the fastest least expensive next step is to reload the Engine Firmware followed by the System/Copy firmware.

[sandmanmac]

Re: MP501 after running 100 copies it hesitates and is light or blank

What ever happened to SP 2207 Forced Toner Supply? Did they move it to Factory SP Mode like they have in the past with a number of other useful settings?

No issue with the toner bottle motor or its driver circuitry so that pretty much leaves the signal to turn on the motor on. Could be corrupted firmware or a bad board. Obviously the fastest least expensive next step is to reload the Engine Firmware followed by the System/Copy firmware.

Hey Tim,
These are a much different beast than pretty much any Ricoh Box I've personally seen before, and a lot less SP's, because It's more a of a printer based MFP, and uses a cartridge, not a bottle:
N0989.wh.jpg
I did Firmware. No joy.
I'm leaning towards a board issue too.
I was tempted to do a full memory clear, but I knew how much additional time that would create for me in re-entering all their settings - possibly or even probably, for nothing.
My plan is to replace their machine as soon as I can get my hands on another one as it's never been right since I dropped it off, and then I'll have a go on it back at my shop

[DH1980]

Re: MP501 after running 100 copies it hesitates and is light or blank

I think my trouble is in a board. Ricoh said to try board M2811064. Not a big fan of trying boards.
My machine was not running low on toner because after it sits for a few minutes it is OK.
Thanks