Older Sharp AL copiers will go on working with the drum light blinking, but yours will not. Newer models do stop working when the drum reaches its limit. Now keep in mind that just as almost every copier in the market, these units count the copies they make in order to determine toner & drum life. So it is possible to reset the drum counter if you inspect the unit and see no markings or visible wear & tear. Also keep in mind that the toner & drum units have been the same for all AL units through time, so there are plenty of good replacements in the market (not recycled, but re-manufactured or brand-new compatibles).
As for your unit, if the drum is Sharp original or a good quality replacement, you should have to do nothing after installation, for the internal chip in the drum will tell the copier to reset the counter and begin working automatically. However if that is not the case, or should you want to reset the counter on your existing drum, this is the correct sequence to do so.
- Identify the buttons used for adjusting exposure (darker or lighter copies), amount of copies, clear copies and start copying.
- Now press the following sequence of buttons: [CLR], [EXPOSURE], [CLR], [EXPOSURE]
- Your unit should turn off the numbers in the panel.
- Now press 24 as if asking for 24 copies and press [START].
- Press 07 as if asking for 7 copies and press [START].
- Your unit should restart by itself and start working normally.