Hello there
Just wondering if anyone has any ideas on a problem I'm getting on a 1051, basically I was called in for background on prints which I thought was due to an insulated dev mix because of low toner coverage jobs so I replaced the dev and clened every component on the process unit aswell as setting all software dipswitches to factory settings as there were quite a few density settings that had been played around with by previous engineers and then I run through drum perculiarity adjustemens and when testing everything was ok but I then got a recall for the same problem the next day.
I decided to order a dev unit/dev mix, drum, and charge unit as these parts were well over life at 10 million prints (the drum had done 600K) along with a toner control sensor board as maximum density settings had been very low over the last few services so wanted to rule everthing out.
I then came back to fit these parts and when I checked max density it was around the 100 value rather than it being as low as 16 and all seemed good with perfect print quality but gradually after about 200 sheets of A3 the background came back and the only way I can get rid of it is by increasing the charge potential an extra 50V with dip SW 7-2 and 7-3 but there is obviously not quite right.
any suggestions would be greatly appriciated
NMEngineer
Just wondering if anyone has any ideas on a problem I'm getting on a 1051, basically I was called in for background on prints which I thought was due to an insulated dev mix because of low toner coverage jobs so I replaced the dev and clened every component on the process unit aswell as setting all software dipswitches to factory settings as there were quite a few density settings that had been played around with by previous engineers and then I run through drum perculiarity adjustemens and when testing everything was ok but I then got a recall for the same problem the next day.
I decided to order a dev unit/dev mix, drum, and charge unit as these parts were well over life at 10 million prints (the drum had done 600K) along with a toner control sensor board as maximum density settings had been very low over the last few services so wanted to rule everthing out.
I then came back to fit these parts and when I checked max density it was around the 100 value rather than it being as low as 16 and all seemed good with perfect print quality but gradually after about 200 sheets of A3 the background came back and the only way I can get rid of it is by increasing the charge potential an extra 50V with dip SW 7-2 and 7-3 but there is obviously not quite right.
any suggestions would be greatly appriciated
NMEngineer
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