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| Thread ID: 77455 | 2007-03-10 19:06:00 | Paging all Photocopier technicians. | B.M. (505) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 531682 | 2007-03-10 19:06:00 | I have a rather old, but none the less faithful, Sharp SF-7850 Photocopier that has started playing up at initial switch-on. It comes up with a flashing L8 alarm and refuses to go through its normal start-up routine. However, if I leave it on and flashing for 10-15 minutes, then turn it off and straight back on, away it goes and works perfectly. Once working, if I then turn it off and back on in 10 seconds it restarts no problem. I’ve “Googled” the problem but can only find the suggestion L8 is a Main Board Alarm but nothing more enlightening. The copier gets very little use and can sit idle for weeks at a time. I get the impression it is a heat or dampness sensor problem or flat CMOS battery or the like. Don’t know whether they even have a CMOS battery, or how they hold the settings for start up, Anyone any ideas? :confused: |
B.M. (505) | ||
| 531683 | 2007-03-10 23:52:00 | Moisture on the photosensitive drum can cause problems. All-black copies are a symptom of that. I suspect that many manufacturers will give an error indication and stop operation if it happens. (One copier I used had a switch which controlled a drum heater to fix the problem). I doubt if there are any "settings" to remember, though that is a possibility. |
Graham L (2) | ||
| 531684 | 2007-03-11 00:24:00 | You could be on the track there Graham. ;) The room it's in shows no sign of dampness and once it starts up the copies are perfect. (I do have a Copier Test Page). ;) However, before it fires up there is quite a bit of warm air coming out the vent. It certainly seems like a sensor problem but without a workshop manual or circuit diagram it gets a bit tricky. I was sort of hoping there was a Sharp Serviceman out there that would come back with good old “yea it’s quite a common fault and you do this to fix it” :D |
B.M. (505) | ||
| 531685 | 2007-03-11 05:50:00 | B M...........How dare you continue to run old & outdated equipment. How can the large Corporations survive if you continue with this behavior. PJ:rolleyes: :lol: | Poppa John (284) | ||
| 531686 | 2007-03-11 06:19:00 | John, it’s not a matter of them surviving, rather a matter of me surviving. :D | B.M. (505) | ||
| 531687 | 2007-03-13 19:10:00 | Bump. Is there no Photocopier tech's on here? :help: |
B.M. (505) | ||
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