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Communication error I changed my toner cartridge and now a communication error of U2 is showing. What do I do now? Thanks, Sam

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I assume this is a sharp??????????

U2 Backup memory problem

Posted on Aug 25, 2008

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How do I fix a u2 problem for sharp ar163 copier

Posted on May 05, 2009

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How to solve an U2 error on sharp 5316


http://olsonbros.com/sharp/support/sim.html

U2 04 EEPROM read/write error (serial communication
error)
11 Counter check sum error (EEPROM)
12 Adjustment value check sum error (EEPROM)
40 CRUM chip communication error

Jul 27, 2014 | Sharp AR-5316 Laser Copier Black OEM Toner...

2 Answers

Code erreur U2-40


Hi,
U2-40, mostly appears in sharp copiers when you installing new toner cartridge.the reason of this code is faulty CRUM chip because of different type of toner manufacture .
you cane this problem by replace the chip in the new toner cartridge by the chip in old toner cartridge
- the chip is located in the rear toner cartridge -

I hope this help!

Feb 14, 2011 | Sharp AR-5316 Advanced Digital Imager...

2 Answers

In my office we have a SHARP AR 5127 copier. i have replaced the cartridge and it's worked one month and after showing the error call for service U2-40. I want best solution. Plz. give me soluti


u2-40 is communication problem in mainboard,try to replace the toner cartridge. or reset by programming. here the programme...on the mechine then # interrupt 0 interrupt. if mechine go sleepmode pls press 14 and start.

Feb 11, 2010 | Sharp AR-5316 Advanced Digital Imager...

1 Answer

I have an older Sharp AR-168S printer with U2-40 error code.


U2-40 CRUM communication error

Detail-Toner cartridge CRUM data read
error

Cause-A toner cartridge of a different
destination is installed.
EEPROM trouble
Check the destination setup.
Toner cartridge CRUM PWB trouble
MCU PWB trouble
CRUM connector disconnection

Check and
remedy-
Install a specified toner cartridge.
Check the SIM 26-6 setup.
Replace the EEPROM.
Replace the toner cartridge.
Replace the MCU PWB.
Check connection of the CRUM
connector.
Execute SIM 16.

Feb 09, 2010 | Sharp Printers & Copiers

3 Answers

Solution for SHARP AR 5127 error U2-40 call for service


This means that the cartridge's sensor is miscommunicating with the copier memory thus the code U2 -40. You should clean the inner sensor connector and the toner sensor of the spilled toner by low blower. Perform this code ;# , interrupt , C, Interrupt keys in that order and press 16 then Print key and the code will be cleared.

Feb 02, 2010 | Sharp AR-5316 Advanced Digital Imager...

1 Answer

My photocopy machine, any message....call for service...U2-40


hi elisabeth,

unfortunately i don't have the manual for this machine but on others it's a communication problem with the chip on the toner cartridge.
if you use aftermarket/refilled toner you might have gotten a bad one.
did this error show up right after you changed toner?

Jan 26, 2009 | Printers & Copiers

1 Answer

Error code U2 on a AR201 copier


To find out the sub code for the U2 error hold down the Start key. Below is a list of the errors:
U2-04 EEPROM serial communication error
U2-11 Counter check sum error
U2-12 Adjustment value check sum error (EEPROM)
U2-40 CRUM communication error

To clear the U2-40 error try pulling out the toner cartridge and firmly reinstalling it. If that doesn't work you must install a new toner cartridge. There is a CRUM chip on the cartridge that keeps up with how many impressions have been made with that cardridge. You cannot "refill" these cartridges without replacing the CRUM. This problem occurs frequently with remanufactured cartridges.

To clear other U2 errors you must enter simulation mode.
Perform the following procedure to enter the simulation mode.
Clear key - Interrupt key - "0" key - Interrupt key - 16 - Start key - Start key. The unit should reset.

Nov 11, 2008 | Sharp AR 201 Copier

2 Answers

Error Code U2-40 on Sharp FO-DC550 fax machine.


That is a CRUM communication error. The CRUM is a chip that resides on the toner cartridge that keeps track of the toner usage and resets when a new toner is installed. If you replaced the toner recently it may be corrupt. If you got a refurbidhed toner they may have reprogrammed the CRUM incorrectly. Power supply problems often cause this error so check your outlet to make sure it is withinn the proper voltage range and also that it is not on the same circuit as other devices. Get a "real" surge protector designed for office equipment such as a smartpower. Try changing toners and using genuine supplies.

Jun 03, 2008 | Sharp AR-5316 Advanced Digital Imager...

1 Answer

U2-40


The code was not included among the Status Code Indicator RAPS. U2-40 is a Communication Error between the Main PWB and the CRUM on the Toner Cartridge (CRU).

Sounds like the toner cartridge is not seated or is defective.
What that message is saying is that the small chip on the back of the toner cartridge is not communication with the processor board.

Jan 10, 2008 | Sharp AR-160 Copier

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