Phaser 360 Y-Axis stall -> Task result error

[ChAoS2K]

hello,

i got a tek. phaser 360.

first it had the error 5,002.42 (0x2b03):
YA_POS_FAIL

i repaired it by replacing the two motor driver (lmd18201t) on the power board. the error came every time during warm up and while i was searching for the error they blew. i replaced them with 2 new. now the motor rotates

now i've got the following problem:

the phaser can not position the drum correctly. when the drum initializes it rotates one time and then the printer hangs. when i test the y axis with the pc based diag software i become the error message that the y axis stall, and task result error... it ever rotates one time and makes a smooth "click" and the error appeares. but there is not a mechanical problem, because sometimes it rotates in the fast, medium and slow mode without problems.

when i test the two sensor of the drum (positioning sensor and the home sensor) they seem to be correct. the positioning sensor gives the degree (in- or decreasing by manual rotating the drum) and the home sensor seem to recorgnizes the home position when the home flag goes through.

so, where is the error.

thanx for any help

chaos

 

[marty5261]

Check the position of the drum home/position sensor. The disk that rotates on teh end of teh drum shaft needs to be positioned in the center of the sensor of that assy. If it rides agaist either the front or back it can cause the error you describe. Also make sure there is no accumulation of dust in that assy as teh disk and sensor can get dirty also creating that erro. I have actually corrected that problem by blowing dust out of the assy.