C1100 error C2236 and C2237.

[allan]

Been ask to go look at a machine after its been down for a week or so.
The original call the tech was called out for was yellow scattering.

He tells me the machine was over-toned on yellow and yellow toner everywhere.
Dev and drums were 30% over life at the time.

After he removing cleaning out and installing the drum cradle back, it was just going now warming up forever.
My guess would be that it was not stabilizing ok.
At this he took the fuser to another machine to test and tested ok.

Next he changed the PRCB that poped up with a firmware mismatch that got fixed by updating it.
After that continues giving C2237 and C2236 codes. (IDC shutter failure)
Installing the original PRCB back results in the same.

At this point i got there to check the machine.
PS19 tests ok, but the motor M36 will not budge to move the shutter.
Used IO 55-00 thru to 55-05 with no moment in or out of home position.
Dissembled and check that assy and looks clean and ok. Shutter moves smoothly.
All wire continuity was checked from the board to the sensor and motor.
Next i checked for 24V and that was present on both sides of the ICP so the motor driver is getting juice.
At some point i could feel the holding torque on the motor. The motor itself is fine.

It will give the error on startup even before the transfer belt starts to move.
Could it be that the IDC sensors checks to verify that the shutter is open or closed?
Does anyone know if it will run with out the shutter installed?

I also disabled image stabalization using the soft switches in hope to get a list print or test patern out of service mode.
Engine wants to starts and the the code pops up.

Any advise please.

[allan]

Throwing it back in the que...
:confused:

[blackcat4866]

On old machines of the same engine type the shutter does have to move or it will error out. I think I'd replace the patch sensors next. =^..^=

[Toxic]

You could try without IDC shutter, i have seen c1085 works normal without shutter.
I have expirienced bad developer could cause problems , lot of toner spilling inside machine arround developing units, color registration errors,charging potential error...
Meanwhile developer and drum counter was at 60% ,output quality looks ok but get errors after few hundreds clicks.
If you can try replace complete registration unit (sensor stay/lower assy A5AWR72300)

[allan]

On old machines of the same engine type the shutter does have to move or it will error out. I think I'd replace the patch sensors next. =^..^=

Jip that said tech went back to fit the IDC sensor assy and shutter motor with no luck.


You could try without IDC shutter, i have seen c1085 works normal without shutter.
I have expirienced bad developer could cause problems , lot of toner spilling inside machine arround developing units, color registration errors,charging potential error...
Meanwhile developer and drum counter was at 60% ,output quality looks ok but get errors after few hundreds clicks.
If you can try replace complete registration unit (sensor stay/lower assy A5AWR72300)

Nothing worse than a tech caused error.


My advise to him now is to take the entire cradle and the control boards he has with him to a working machine 300KM away...

[Synaux]

On old machines of the same engine type the shutter does have to move or it will error out. I think I'd replace the patch sensors next. =^..^=


Sorry Allan, hijacking your post to ask if blackcat received my messages :rolleyes:

[blackcat4866]

Yes, just responded. =^..^=

[allan]

Ok so the IDCS assy got replaced with no luck.
Finally got the go ahead to test the PRCB's original and the replacement tested in a working machine.

Both boards are blown with no ICP blowout. Both boards gave C2237 testing them.
The give away is the fact that the code pops up after restarting the machine with the ADU unlocked and the drum cradle pulled out.
Machine also does not state door open.

The original code that made them change the print control board was a fuser code C3917 i think.
So if it was not the shutter sensor shutter motor or the IDCS assy that shorted/overloaded the board then the bug that has blown 2 boards now
would still be present.

Testing the harnesses for shorts will take some time to do referencing the diagrams as i do pin by pin...

Something in the back of my head is thinking its not even related to the shutter seeing that all those components seemed just fine.

And thoughts on this?

[tulintron]

Good morning Allan. Certainly the short is still present. I have come across two short problems in large machines. In a C8000, it was a broken wire and another wire tightened with a screw that cost 04 repairs to the ADUDB board and almost a month of work.
The other was in an 1100, which also cost 03 repairs in PRCB and almost a month of work because of a developer that leaked across the machine and internally soiled the connectors.


In both, I had to dismantle practically all the lashes and make point to point until I found the error.

[allan]

Good morning Allan. Certainly the short is still present. I have come across two short problems in large machines. In a C8000, it was a broken wire and another wire tightened with a screw that cost 04 repairs to the ADUDB board and almost a month of work.
The other was in an 1100, which also cost 03 repairs in PRCB and almost a month of work because of a developer that leaked across the machine and internally soiled the connectors.


In both, I had to dismantle practically all the lashes and make point to point until I found the error.


Jip there is a couple of hundred wires ends to test...

[blackcat4866]

Jip there is a couple of hundred wires ends to test...

It's easier if you've got somebody else to help you on the other side of the chassis.

I'll usually use the tone function. I let the other person pick a connector and pin, then I'll find the match. If the tone is wobbly I'll switch to the lowest resistance setting for a better read. It just takes time and patience. =^..^=

[allan]

It's easier if you've got somebody else to help you on the other side of the chassis.

I'll usually use the tone function. I let the other person pick a connector and pin, then I'll find the match. If the tone is wobbly I'll switch to the lowest resistance setting for a better read. It just takes time and patience. =^..^=


Hey great thanks for that idea, used them while i was doing a bit of telecom's. Did not even cross my mind to use that.
Used my scope in a useful manner on site the first time. Used it to verify if the stepper pulses and freq was ok, and it was not.

What i want to do here is sit at the back of the machine where the PRCB needs to go and test from the connectors going to the PRCB to chassis ground.

[tulintron]

Excellent reasoning. However, the analog multimeter better identifies the short circuit. In the case of the helper, it also helps a lot. But wires have connections to their full extent. These connections helped me to discard certain parts of the machine.

[allan]

So 2 hours of testing pins later I cleared the possibility of shorts and installed new board and did firmware.
Any pin described as xSet would also go to ground like fSet tested as grounded.
There is a loop wire in each unit that confirms if its installed or not that grounds it.
In this case fSet was for fuser set and that being grounded would be normal if unit is installed.

Machine came to ready. Jamming. Found bad ICP and connection on the CDB(ADUDB).
Replaced ICP12 and jamming gone.

Last the paper came out all wavey. Found one way bearing on deculer installed wrong way round and corrected that.

Machine running.:)

[blackcat4866]

Nice work! =^..^=

[tulintron]

You have no posts with a sad ending. I already expected an answer like that, coming from you.

[Raed]

Hello allan
How did you solve this problem?
Error code C2236
Error code C2237

[tdvasu62@gmail.com]

Been ask to go look at a machine after its been down for a week or so.
The original call the tech was called out for was yellow scattering.

He tells me the machine was over-toned on yellow and yellow toner everywhere.
Dev and drums were 30% over life at the time.

After he removing cleaning out and installing the drum cradle back, it was just going now warming up forever.
My guess would be that it was not stabilizing ok.
At this he took the fuser to another machine to test and tested ok.

Next he changed the PRCB that poped up with a firmware mismatch that got fixed by updating it.
After that continues giving C2237 and C2236 codes. (IDC shutter failure)
Installing the original PRCB back results in the same.

At this point i got there to check the machine.
PS19 tests ok, but the motor M36 will not budge to move the shutter.
Used IO 55-00 thru to 55-05 with no moment in or out of home position.
Dissembled and check that assy and looks clean and ok. Shutter moves smoothly.
All wire continuity was checked from the board to the sensor and motor.
Next i checked for 24V and that was present on both sides of the ICP so the motor driver is getting juice.
At some point i could feel the holding torque on the motor. The motor itself is fine.

It will give the error on startup even before the transfer belt starts to move.
Could it be that the IDC sensors checks to verify that the shutter is open or closed?
Does anyone know if it will run with out the shutter installed?

I also disabled image stabalization using the soft switches in hope to get a list print or test patern out of service mode.
Engine wants to starts and the the code pops up.

Any advise please.


Try to remove the Shutter and run the machine
are you getting any noise from machine after power on
if Yes then we may need to clan the sensor which is located don side of Processes carriage where exactly shutter motor located

Follow this video
https://www.youtube.com/watch?v=XuznmwO-lRU

[allan]

Hello allan
How did you solve this problem?
Error code C2236
Error code C2237

If you read through the entire thread then you will see that the problem was resolved. Long story short a tech used a blower on the IDS assy and damaged a stepper driver on the main board due to a high voltage discharge. Replacing the main board fixed the C223X issues.

But there are a couple of ways to get those codes like the shutter or he sensors.Both can be tested using IO check.