Some times the message will display in the middle of printing and every operation will suspend until it fishes
Might also be the it has to have its firmware re-flashed have tech come and check it out and have a good cleaning done.
Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f
SOURCE: Black Lines
Do the black lines only show up when useing the adf???? Or do they show up on both the adf and the copyboard glass??? If it is only when using the adf...... The fix is easy.... you have to clean the smaller piece of glass that is to the left of the copyboard glass with windex or rubbing alchola. If it is with both you may need a new drum and blade or a new ufr... Good Luck
SOURCE: error code h4-01
P * C * enter sim 14 press copy key then CA. Machine should reboot. if problem re-occurs your thermostat in the fuser has tripped
SOURCE: after installation my sharp ar-m420u
L1 MEANS U HAVE TO REMOVE THE SCANNER LOCK WHICH IS ON THE SIDE OF THE MACHINE.
F2 MEANS SOME PROBLEM WITH YR TONER CATRIDGE.CHANFE IT AND SEE
SOURCE: Sharp-MX2700N Maintenance Code VK
VK = 100,000 pages printed on the developer counter or 715,000 revolutions of the developer unit (as mixing can occur even when pages are not being printed). Developer can break down over time and or the seals can be damaged - so service by a technician is indicated. If maintenance was recently performed and the developer replaced then the counter needs to be reset.
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