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Re: There is still half of cleaning web left, but the...
This is a complex problem, you it is difficult to tell here, it is necessary to be present. Can be mechanics and can electronics, you should apply to service
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Either the drum unit is marred or some toner has migrated to where it shouldn't be, possibly onto the fuser roller.
A thorough cleaning might be in order.
Take you drumback out and lookinto the machine with a flashlight.
There should be a piece of glass that isolates the laser from the rest of the machine, check for dust or toner. Clean if necessary.
open the keypad of the mavhine and just take lcd out of the board and clean the slots wid alcohol then reinstall the lcd if doesnt work plese dont waste time take new lcd from dealer and instaal
Yes, the code is caused by toner getting into the laser unit. The laser unit likely only needs to be cleaned out. To do so, turn the machine of with the red rocker switch on left side of the machine. You will need to remove the front cover and the brown cover behind it. The mechanical counter is plugged into the brown cover so be careful not to damage the wires. The laser unit is the black plastic case you will see behind the brown cover. Be sure to remove the necessary screws and connectors. Be extra careful of the ribbon cable, it kinks easily and the contacts are easily damaged. The Laser unit will slide out, and you can remove the screws holding the top cover on. After removal, clean the interior of the case and mirrors. Do not use any liquid to clean it, preferrabley canned air and a lint free cloth. After cleaning, reassemble, turn the machine back on, and test.
If the copy count is around 150,000 or higher and you haven't replaced the developer as well, it should be replaced. That symptom can cause light copies if it hasn't been replaced every 150,000 cycles.
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