sharp ar-bc320

[gregu33701]

need help on whites lines on different developers ,
have 2 copiers to test with ,
when running test print , not off glass, directly from printer , getting whites lines on cyan and magenta ,
tried new units , same problem, move unit to another color slot , (modify cart slightly , ie swap cyan for yellow ) , problem follows cartridge
not really an experienced sharp tech , but putting cyan with problem into 2nd copier prints fine , so in one case problem seems to follow cart in same copier , but not to another machine ,
i know when they are installed a adjustment is run , my only concluion is bad develpoers or ANOTHER ADJ LIKE TRANS OR DEV BIAS?
ANY HELP?

[ZOOTECH]

Are these white lines front to rear or in the direction of paper travel?
If front to rear and spaced equally you probably have cracked drive gears.

[tmaged]

Zootech is correct. If front to rear, then it's the DV/Toner drive gears. (they've been updated twice) If it's paper moving direction, then the cartridge is bad. There was a firmware update to run the cartridges backward so the toner doesn't pack against the doctor blade. Let me know if you have any other questions. Hope that helps !

[gregu33701]

more info

the motors and drive packs were swapped , plus like i said earlier , inside the same machine the problem follows the dv cartridge , you can clip the plasic tabs and we swapped the little chip peice on the end and had the cyan , which had the lines , swapped with the yellow , and the problem moved with the cyan cart , real problem is that we have swapped to new cart's and they have same problem, once a new cart fixed problem , twice it didnt , when we took cyan cart from machine thas was showing problem in one copier , in 2 different slots , to another copier - it didnt have problem , i was thinking maybe adjustment or firmware , may try firmware , i dont think its cracked drive gears , we thought that too, thats why we moved cart , and then later moved entire drive packs and motors around , we think maybe the dev cart are all coming bad from fact , but would need some doc from sharp to prove to supplier
i do appreciate all feedback though!