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Old 02-04-2019, 12:31 AM   #1
ratdude747
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Default Laserjet 4L Code 52

Pulled an old beast out of storage (HP Laserjet 4L)... was intermittenly having issues but I was able to print test pages with some success.

Brought it home, and I keep getting service error code 52, which is described as:

Quote:
A temporary error has occurred.
Power cycle the printer.
The scanner assembly is improperly fitted.
There is a scanner cable problem.
The laser scanner assembly is defective.
The DC controller PCA is defective.
Source:

http://printcopy.info/?l=en&mod=erc&...ge=1&btnPage=y

Is there a common cause for this, or is something blown up? It already has issues leaving streaks/marks on blank/all pages (worn/old drum in cartridge) and it's more of a hobby than an in-use printer. So I'm not looking to replace major components.

Ideas?
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Old 02-04-2019, 01:02 AM   #2
stj
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Default Re: Laserjet 4L Code 52

it's bullshit, you have dust on the mirrors.

pull the cover and you see in the center a black box.
open the cover and there are some mirrors, a lense for the laser and a spining mirror-cylinder with about 10 faces.
clean them all.
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Old 02-04-2019, 01:44 AM   #3
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Default Re: Laserjet 4L Code 52

Quote:
Originally Posted by stj View Post
it's bullshit, you have dust on the mirrors.

pull the cover and you see in the center a black box.
open the cover and there are some mirrors, a lense for the laser and a spining mirror-cylinder with about 10 faces.
clean them all.
Good call... mine only had two flat faces (plus 2 curved faces), but cleaned them up... and bingo, it's printing again. Apparently where I stored it was where some home improvement happened, because it was full of sheetrock debris too.
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Old 02-04-2019, 01:53 AM   #4
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Default Re: Laserjet 4L Code 52

mess on the prints is probably caused by the drum in the toner cartridge,
but the foam transfer roller would also be a suspect.
you can wash it with cold water and dish cleaning soap to get stuck toner out of it.
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Old 02-04-2019, 02:01 AM   #5
ratdude747
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Default Re: Laserjet 4L Code 52

Quote:
Originally Posted by stj View Post
mess on the prints is probably caused by the drum in the toner cartridge,
but the foam transfer roller would also be a suspect.
you can wash it with cold water and dish cleaning soap to get stuck toner out of it.
Who knows how old the cartridge is... I did clean a bunch of crap out of one of the rollers past the cartridge... the back of the paper is clean finally.

I think I see the streaking patter on the drum itself... darn, and the ancient cartridge still has toner left. Oh well. :hammer:
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Old 02-04-2019, 02:15 AM   #6
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Default Re: Laserjet 4L Code 52

Did some more test prints. I have pictures in another thread:

https://www.badcaps.net/forum/showthread.php?p=879112
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