Canon Ir 3300

[buzzmeok]

Hi I really need some help here this is a good one.
I have a canon ir 3300 when you turn it on it will work just fine and come up to ready and you can make copies just fine. When you open the front door then close it. I get a E803.000 error code. open it again and I get 712.0001. open it again and I get a working machine and no more codes all is working fine ...
But when you open the front door you get all the same codes in the same order. I have replaced the DC Controller,Main Controller,HD, Reader Controller, the Memory dimm. unpluged all the accessories ADF, Extra paper deack,Unpluged and repluged all the connectors in the back of the machine even the high voltage power supply. I think im at the end here not much more left to try. Any one have any idea??

[bnmand]

When you replaced the HD did you install the latest firmware? Old firmware could be a problem if it's spitting out error codes for no reason.

Other than that all I can think of is that maybe something that isn't expected to break down probably has due to the age of the machine (hence why it's not mentioned in the SM). I'd check near the parts you replaced to see if anything appears to be damaged or worn out.

I'd check to make sure that the copier recognises that the front door is open (if that's possible. May be somewhere under I/O menu in Service Mode).

[buzzmeok]

yup new firmware

[goofball]

I would check the front door switch. It could be your 24 volt supply. But suspect the front door switch has a bad contact causing this.

[blackcat4866]

I'm with goofball. Front door interlock? Any other interlock? Often interlocks are wired in series, so any interlock can produce the same effect.

[buzzmeok]

Hmm that is a good one but hmm.... I don't think so because every third click of the toggle switch it works fine with out opening the front door . so that puts out the switch. I am going for the main power supply and the voltage regulator. keep in touch. I will let you all know what it was.

[SCREWTAPE]

E712 Error code details Communication error (with ADF)
The connect has poor connection. The main power supply PCB is faulty.
The ADF controller PCB is faulty. The reader controller PCB is faulty.

1. Connector
�Is the interface able between the ADF controller PCB and the reader controller PCB normal?
�NO: Correct the cable.

2. Main power supply PCB
�While the ADF is in operation, does the voltage between J203-2 (+) and J203-1 (-) on the main power supply PCB change from 0 to about 24 V?
�NO: Replace the main power supply PCB.

3. ADF controller PCB, Reader controller PCB
�Try replacing the ADF controller PCB. Is the problem corrected?
�YES: End.
�NO: Replace the rear controller PCB.

E803 Error code details MPWS power supply voltage error (low voltage error)

The wiring is faulty (short circuit, open circuit). The composite power supply PCB is faulty. The DC controller PCB is faulty.

1. Connectors
�Are the connectors J204 on the main power supply PCB and the connector J300 on the DC controller PCB connected securely?
�NO: Connect the connectors securely.

2. Main power supply PCB
�Is 24 V supplied by the main power supply PCB (J204) to the DC controller PCB (J300)?
�(J204-5 <-> J300-5: OVU3, J204-6 <-> J300-6: OVU3,
�J204-7 <-> J300-7: 24VU3, J204-8 <-> J300-8: 24VU3)
�NO: Replace the main power supply PCB.
�YES: Replace the DC controller PCB.

Hope this helps out.

[mitsubee]

Something got to do with the upper block of the machine.....my opinion is poor connection or irregularity of DC supplies to the scanning lamp or Board

[buzzmeok]

Ok well it was the switching regulator. The end

[Peter Sim]

Hi I really need some help here this is a good one.
I have a canon ir 3300 when you turn it on it will work just fine and come up to ready and you can make copies just fine. When you open the front door then close it. I get a E803.000 error code. open it again and I get 712.0001. open it again and I get a working machine and no more codes all is working fine ...
But when you open the front door you get all the same codes in the same order. I have replaced the DC Controller,Main Controller,HD, Reader Controller, the Memory dimm. unpluged all the accessories ADF, Extra paper deack,Unpluged and repluged all the connectors in the back of the machine even the high voltage power supply. I think im at the end here not much more left to try. Any one have any idea??

Hai buzzmeok,
I have one machine that get to show any error code like e-712,e803,e220.I change the power board and it solve everything.I think is cause by dc24v inconsistency.