2 Apr
2019
2 Apr
'19
6:39 p.m.
On 4/2/19 4:20 PM, Ali via cctalk wrote:
So I took out the HV board and it was super
dirty (I added pictures on the thread in VCF at
www.vcfed.org/forum/showthread.php?69109-Help-with-LJ-4-Printer-Repair-Plea…
).
I saw.
Nothing that should really prevent electrical flow but
I cleaned it out
anyhow. Re-installed and the issue remained.
ACK
While the printer was cold I ran another HV test and
interestingly the
toner drum had a very faint picture on the drum. So it looks like the
toner is not being deposited on the drum appropriately until something
"warms up".
My gut tells me that there's something going on with the HV section and
not actually pulling toner like it needs to.
Given your comment below about the caps, I'm wondering if they are
taking longer to charge up and the additional pages allow for them to
charge to a sufficient level.
The question now is, is this a toner problem (since I
believe the corona
wire is in the cartridge) or a HV problem. Since I am not getting error
codes I am guessing the cartridge is bad for one reason or another.... How
likely is that in your experience vs. the HV board going bad and just
not erroring out? Two of the caps look like they may have leaked on the
HV board (see the stains on the PCB in the before picture?). However,
I don't see any bulging capacitors or anything blown. Thanks.
It sounds like the caps have not (yet) completely failed.
I'd bet $10 on the HV supply being your problem.
--
Grant. . . .
unix || die