1045 Charge Roller Voltage error

[nobody-here]

hi everybody,

I have a ricoh 1045 keeping a strange issue.

Charge Roller voltage goes up to 2000 without reason.
Even If i modify Charge Roller voltageSP2-001-001 to 1480 (default value), after a few moments, if I turn off / On machine it comes up to 2000 so copies are too light.

Lowering voltage to 1480 copier are ok.

I changed ID sensor, drum, developer.

Any other clue or info about this.

Thanks

Vincenzo

[Fearless V K]

Sounds like the machine process control is changing the value to compensate for other issues.

[nobody-here]

Sounds like the machine process control is changing the value to compensate for other issues.

What can I check?

Thanks

[Eric1968]

Did you also replace the charge roller itself?

[Fearless V K]

Check your (ID, TD) sensor readings. If they are working, their readings may give an indication as to the problem. Also check your front door switches, if they are bad your laser power values can get screwed up.

The charge roller contacts inside the drum unit can also be an issue, but you will usually see some kind of banding when that occurs, but it may be worth a look. Check your drum ground also.

[nobody-here]

Did you also replace the charge roller itself?

It looks ok, but I will change for a try.

Check your (ID, TD) sensor readings. If they are working, their readings may give an indication as to the problem. Also check your front door switches, if they are bad your laser power values can get screwed up.

The charge roller contacts inside the drum unit can also be an issue, but you will usually see some kind of banding when that occurs, but it may be worth a look. Check your drum ground also.

Sensor Readings ok,
COntacts on drum or ground ok

Front Door Switches? I will check...Why they should cope with laser power?

[Fearless V K]

They are the laser interlock switches, they get dirty and don't provide enough power to the laser unit. There is a bulletin on that.

[ivacopy]

Voltage

Did you change the developer, charge roller and drum?It might be the reason for the problem because the voltage always increases when the potential of the drum reduces.

[nobody-here]

They are the laser interlock switches, they get dirty and don't provide enough power to the laser unit. There is a bulletin on that.

Here in Italy couldn't find any bulletting for this problem (We don't have tessa access, only local resources)
Can you send it to me, I will provide my email on PM!

Thanks.

[DRORBAR]

HELLO

DO YOU CLEANING DRUM UNIT???....
HOW value ID SENSOR?....
YOU HAVE PALE COPY?...

[nobody-here]

DO YOU CLEANING DRUM UNIT???....
HOW value ID SENSOR?....
YOU HAVE PALE COPY?...

Drum unit cleaned, and checked.
Pale copy yes.

Changed everything.

My collegue also told me that he erased nvram.

Thanks again!

[TonerMunkeh]

He flattened the NVram? Did he re-input the non-default values? Aside from that the laser unit has probably given up the ghost, just replace it as a unit.

[nobody-here]

He flattened the NVram? Did he re-input the non-default values? Aside from that the laser unit has probably given up the ghost, just replace it as a unit.

non default values Values where re-input.
We are trying to reprogram nvram with original values.
What do you mean "given up the ghost" I can't understand-

Thanks for your help.

Vincenzo

[TonerMunkeh]

Sorry, I should have realised you wouldn't understand sayings like that lol

It may be the laser has gone faulty. I've had really high charge levels been caused by defective laser units before and they've also given SC326 not long after, caused by the same fault. Give that a try too.

[nobody-here]

Sorry, I should have realised you wouldn't understand sayings like that lol

It may be the laser has gone faulty. I've had really high charge levels been caused by defective laser units before and they've also given SC326 not long after, caused by the same fault. Give that a try too.

My english is worsening!
I'll need a new training course in London!!!

Thanks, I will try a new laser.
We put old NVRAM values (we saved the original) and waiting for the results.

TX