SOURCE: Sharp error code U2
you can get rid of this u2 by pressing buttons as follows: # , interrupt, C, interrupt sequentially. then enter the no. 16 and press the start button. good luck
SOURCE: Error code U2-40
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.
SOURCE: 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.
SOURCE: Error code U2 on a AR201 copier
Hello sir; This error code it can be reset folloe the instruction;
1, press "clear", "interupt", " 0 ", "interupt"
2, enter 16 then press start.
SOURCE: ar405 error code f2-31. how
Content Process control trouble (OPC drum
surface reflection rate abnormality)
Detail Usually the sensor gain is adjusted so
that the output is a certain value, by
reading the drum base surface with the
image density sensor before starting
process control.
However, a certain output is not obtained
by adjusting the sensor gain.
Cause Image density sensor defective
Check Check process control sensor output with
SIM44-2. (Do not adjust)
and
remedy If the result is far different from the
specified value, it suggests the sensor is
defective. Check the sensor and harness.
If the deviation is relatively small, check
the sensor and drum surface for
contamination.
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