2 Apr
2019
2 Apr
'19
6:36 p.m.
On 4/2/19 2:47 PM, Ali via cctalk wrote:
Yes, these guys were built like tanks. This one acts
as a 4M now because
I added the PS module to it and it has local talk support. No duplexer
or extra paper tray though :(.
It was really a 4+. I picked it up for $1 ~ $10 at a ham fest. I then
maxed the memory and added PostScript, thus turning it into a 4M+.
The duplexer was interesting. It interfaced with the back of the
printer in place of the fold down back cover. The extra paper tray was
part of the duplexer and where the paper flipped around. - I think it
went under the tray instead of out the top, then came back up and feed
like the normal expansion tray.
I will have to keep that in mind. This paper was old -
not sure how
old but it was in the tray when I found the printer on the side of the
road. So better to recycle it then risk it I think.
I'd be more worried about moisture with the paper. But, sure, recycle
it and replace it.
It may be "hot enough". They are certainly
warm. And I don't detect them
getting any hotter to touch as more printing goes on so this part could
all be in my head.
I don't remember the 4[M][+] ever getting all that warm.
The 4Si, that would get really warm. Especially if you were using the
job jogger, duplexing, and printing reams at a time.
I can post it elsewhere if needed. It basically shows
the picture getting
darker with subsequent printings.
I created an account, got logged in, and see both pictures.
I don't see any typical roller related defects.
I am not sure how to quantify it but it looks solid on
the drum. I will
have to repeat the test with a "cool" printer and see if it still looks
solid or not.
ACK
Never thought about it but the extra toner (I assume
not all the toner
is being transferred to every page of print) must get swept up back in
to the cartridge somewhere, no?
I am guessing that you have an HV issue, and the toner is not coming out
of the cartridge.
Not too bad. It is worth mentioning that the printer
doesn't seem abused
in its old life either. Only 65K of prints...
It's a younging.
Both of which should produce an error usually...
I thought so. However, Dave M. indicates that HV problems /won't/
produce an error.
I thought about bad toner but that doesn't explain
the improvement with
time/prints. Or why it would go bad again after cooling down.
That doesn't sound like a toner cartridge issue to me.
I would say 5 - 10 minutes. Once I get good quality
prints the subsequent
pages all look great...
That tells me that it's not something mechanical. I say that because it
would be all the time. (I guess a cold solder joint could be
mechanical. But I think that would present differently.)
Thanks that was quick! I am pulling out the HV portion
now to take a
look. If I understand correct the DC (LV) supplies everything else except
the engine. Those all seem to be working fine. Cleaning contacts is easy
(and cheap) so that will be my first fix unless I see something glaringly
obvious with the caps on the HV.
Yep. He's retired.
Thank you.
You're welcome.
--
Grant. . . .
unix || die