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I have a xerox Docucolor 621 which has a Close Door Error, The Tech Who has looked at it says it needs a new main board and a Sensor PCB costing $2,880. Is there some other way to fix this?

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You can try looking for a local service provider other than Xerox.
Go on the Xerox.com website and look under dealers and see if their dealer locater has location listed in your area.
You can google a business called " the parts drop" and see if they have that part for cheaper.
I don't know why you would have to replace both parts though. And honestly, xerox is excessivly expensived on service. Horribly expensive.

Posted on Aug 13, 2008

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Hi, i have 2pcs of canon iR2016 Digital copiers which displays error codes of E246 AND E247. these errors are not in the service manual, please help


Sir i am a Canon trained tech. I just checked our website and my service information. I found the following. I suspect someone has been working on these machines or swapped some parts around.

Page 1 of 2
MODELS AFFECTED / SERIAL NUMBERS AFFECTED:
Digital Copiers, Including All imageRUNNER Products
SUBJECT:
Information About The New Soft Counter Circuits
GENERAL TECHNICAL INFORMATION
GENERAL:
This Technical Publication presents information about the new Soft Counter circuit that replaces the mechanical counter
used in the past. There are three (3) PCB’s associated with the new Soft Counter circuit; the Counter Memory PCB,
Main Controller PCB and the Serial Number PCB. A description of their function is provided below. Use this
document as a reference for current and future models that use the Soft Counter circuit.
Counter Memory PCB
On the latest Canon digital copiers, such as the imageRUNNER 5000, imageRUNNER 8500 and imageRUNNER 2200
series, there are no mechanical counters. Instead there is a Counter Memory PCB. This PCB is usually mounted on the
Main Controller PCB with one screw. The Counter Memory PCB is imprinted with the serial number of the machine
the first time power is turned ON and cannot be moved to another machine. Attempting to do so will generate an E246
error code. In the event of a Counter Memory PCB failure, a new one from stock (see Note 4) can be installed into the
machine. At that point the Main Controller PCB will transfer its present total count as indicated in “Counter Check” on
the control panel (recorded the last time power was turned OFF) to the new Counter Memory PCB and the total counter
will increment from that count on. Never attempt to operate a machine without the Counter Memory PCB
installed!
This may generate an E245 code, which can only be cleared by “zeroing out” the Main Controller PCB by
one of our A.P.R.F.’s (Authorized Parts Repair Facilities).
Main Controller PCB
The Main Controller PCB, aside from performing other tasks, retains the total count by means of SRAM with a battery
back up after power has been turned OFF. If, however, the Main Controller PCB has been replaced with either a new
one or a used one, it will read in and record the total count from the Counter Memory PCB retained the last time power
was turned OFF. The total count will then increment from that count on.
Note 1:
Even though the total count will be the correct value for that machine after replacing the Main Controller, the soft
counters in Service Mode will not. If a new Main Controller was used for the replacement, then all soft counters in
Service Mode (service counters in “Counter Mode”) will be zero. If, on the other hand, a used Main Controller was
used for this replacement, the soft counters previously recorded on that PCB would be shown. At that point it is
advisable to clear these values in Service Mode using Function>Clear>CNT-MCON.
All Main Controllers sent to our A.P.R.F.’s for repair will be “zeroed out” before being sent back to the dealer.
Page 2 of 2
GTI-T151
04-30-02 GT I
Note 2:
The Counter Memory PCB and the Main Controller PCB should never be replaced simultaneously!
This will
generate an E354 code and assistance from the Canon Reseller Technical Support Center Hotline will be required. If
the Main Controller is sent to one of our A.P.R.F.’s for repair, you must remove the Counter Memory PCB
before sending it out!
Failure to do so will only increase down time for your customer.
Note 3:
If the Main Controller PCB is replaced, ensure that connector J1023 is connected. If it is not, an E350 will be
generated.
Serial Number PCB
The Serial Number PCB’s main function is to identify the machine’s serial number. This PCB cannot be moved to
another machine.
Attempting to do so will generate an E355 and assistance from the Canon Reseller TechnicalError codes not listed in the Service Manual:
There are various error codes that are not listed in the Service Manual. Canon U.S.A., Inc. reserves the right to treat
these error codes as Proprietary Information. If you encounter any of the following error codes, contact your Canon

E245 E246 E247 E350 E354 E355
Note 4:
Please be advised that Canon U.S.A., Inc. treats the Counter Memory PCB and Serial Number PCB as “restricted” parts.
When a dealer orders these components they will be asked to provide the reason for their replacement, and the original
PCB will have to be returned to Canon U.S.A., Inc. for evaluation.

Jan 07, 2009 | Fax Machines

2 Answers

No Dial tone


Have you had an electric storm or power failure? A power surge can cause no dial tone also. It can be the main PCB in the machine or NCU PCB(board for phone cord). Unplug the machine from the wall, put your finger on the menu key first, plug the machine while holding the menu key, the light will flash and display will say maintenance. Press number 82, if there is a DF error the main board will need to replaced. The main board is the brain of the machine and is one of the most expensive parts of the unit. It is hard to distinguish if it is the modem or the main board on this unit that is causing the unit not to have a dial tone. It may be better to take it to a service center.

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