Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > sci.electronics.repair > #70527

Re: PING: HP laserjet experts Help!

Cross-posted to 2 groups.

Show all headers | View raw

On 23/02/2016 11:19 AM, Jeff Liebermann wrote:
> On Tue, 23 Feb 2016 09:13:00 +1100, Trevor Wilson
> <trevor@SPAMBLOCKrageaudio.com.au> wrote:
>
>> **Good news bad news time. I now have the service manual for this
>> device. No useful schematics. Just block diagrams and hundreds of pages
>> of mechanical drawings and photos. Quite comprehensive in it's own way.
>> The good news is that I now have a proper interpretation of the fault code.
>>
>> 50.8 = Low fuser temperature (Subthermistor)
>
> Thank you for delivering the error message.

**It is the same as the one I supplied in my original post.

> <http://www.all-laser.com/a50service/>
> I've seen that error message on other model HP printers.  In my
> experience, it can be anything from a loose connection on the ends of
> the ceramic slab heater element, to cracks in the heater element.
> Also, caked on toner onto the thermistor temp sensor will cause a low
> temp reading.  Measure the resistance of the heater element from end
> to end and you should see about 15 for 117V and twice that for 220V. I
> think I know where I can find a 3800 to measure, or just ask in the HP
> forums or FixYourOwnPrinter forums.

**As soon as I figure out how to dismantle the fuser, I will check those 
things.

>
> This article suggests that it might be low line voltage:
> <http://www.fortwayneprinterrepair.com/wordpress/2011/11/06/hp-color-laserjet-3000-3600-3800-and-cp3505-50-1-fuser-error/>

**Unlikely in my case.

>
> Also see:
> <http://www.fixyourownprinter.com/posts/42184>
> I'll try to find the unspecified service note, but so far, I'm not
> having any luck finding it.
>
> Meanwhile, dig through this mess on 50.1 errors and see what you can
> excavate:
> <https://www.google.com/search?q=hp+color+laserjet+50.1+fuser+error>
>
>> Would I be crazy to buy one of these?
>> http://www.ebay.com/itm/RM1-2764-RM1-4349-HP-Color-LaserJet-3000-3600-3800-CP3505-Fuser-Unit-220v-/271729961017?hash=item3f445e2839:g:zpcAAOSwnDxUgFp3
>
> Good find.  I missed that one.  Yes, that should work for 220V.  I
> checked the numbers.  Since the rebuild kit does NOT include a heater
> element, the replacment from China may be your only reasonable option.
>

**That was my thinking. I figure that I should probably replace the 
heater, if I am overhauling the fuser. Anyway, thanks for all your 
assistance. I'll keep you posted.


-- 
Trevor Wilson
www.rageaudio.com.au

---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus

Back to sci.electronics.repair | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

PING: HP laserjet experts Help! Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au> - 2016-02-21 17:22 +1100
  Re: PING: HP laserjet experts Help! Clifford Heath <no.spam@please.net> - 2016-02-21 17:23 +1100
    Re: HP laserjet experts Help! "Andy Wood" <woodag@trap.ozemail.com.au> - 2016-02-22 07:03 +1100
  Re: PING: HP laserjet experts Help! news13 <newsthirteenspam-spam@woa.com.au> - 2016-02-21 06:46 +0000
    Re: PING: HP laserjet experts Help! whit3rd <whit3rd@gmail.com> - 2016-02-22 01:16 -0800
  Re: PING: HP laserjet experts Help! John Robertson <spam@flippers.com> - 2016-02-20 23:25 -0800
    Re: PING: HP laserjet experts Help! Bruce Esquibel <bje@ripco.com> - 2016-02-21 14:13 +0000
  Re: PING: HP laserjet experts Help! Colin Horsley <horsley-spam@westnet.com.au> - 2016-02-21 22:15 +1100
  Re: PING: HP laserjet experts Help! Jeff Liebermann <jeffl@cruzio.com> - 2016-02-21 12:16 -0800
    Re: PING: HP laserjet experts Help! Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au> - 2016-02-22 07:56 +1100
      Re: HP laserjet experts Help! "Kenny" <me@privacy.net> - 2016-02-21 21:21 +0000
    Re: PING: HP laserjet experts Help! Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au> - 2016-02-22 10:05 +1100
      Re: PING: HP laserjet experts Help! news13 <newsthirteenspam-spam@woa.com.au> - 2016-02-22 01:39 +0000
        Re: PING: HP laserjet experts Help! Jeff Liebermann <jeffl@cruzio.com> - 2016-02-21 18:44 -0800
          Re: PING: HP laserjet experts Help! news13 <newsthirteenspam-spam@woa.com.au> - 2016-02-22 06:41 +0000
      Re: PING: HP laserjet experts Help! Jeff Liebermann <jeffl@cruzio.com> - 2016-02-21 18:28 -0800
        Re: PING: HP laserjet experts Help! Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au> - 2016-02-22 14:59 +1100
          Re: PING: HP laserjet experts Help! Jeff Liebermann <jeffl@cruzio.com> - 2016-02-21 21:06 -0800
            Re: PING: HP laserjet experts Help! Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au> - 2016-02-23 08:43 +1100
              Re: PING: HP laserjet experts Help! Jeff Liebermann <jeffl@cruzio.com> - 2016-02-22 16:03 -0800
              Re: PING: HP laserjet experts Help! Bruce Esquibel <bje@ripco.com> - 2016-02-23 11:50 +0000
            Re: PING: HP laserjet experts Help! Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au> - 2016-02-23 09:13 +1100
              Re: PING: HP laserjet experts Help! Clifford Heath <no.spam@please.net> - 2016-02-23 09:36 +1100
              Re: PING: HP laserjet experts Help! Jeff Liebermann <jeffl@cruzio.com> - 2016-02-22 16:19 -0800
                Re: PING: HP laserjet experts Help! Jeff Liebermann <jeffl@cruzio.com> - 2016-02-22 16:39 -0800
                Re: PING: HP laserjet experts Help! Jeff Liebermann <jeffl@cruzio.com> - 2016-02-22 16:48 -0800
                Re: PING: HP laserjet experts Help! Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au> - 2016-02-23 16:12 +1100
                Re: PING: HP laserjet experts Help! Jeff Liebermann <jeffl@cruzio.com> - 2016-02-22 23:16 -0800
                Re: PING: HP laserjet experts Help! Trevor Wilson <trevor@SPAMBLOCKrageaudio.com.au> - 2016-03-04 11:07 +1100
                Re: PING: HP laserjet experts Help! MJC <gravity@mjcoon.plus.com> - 2016-02-23 12:10 +0000
                Re: PING: HP laserjet experts Help! Jeff Liebermann <jeffl@cruzio.com> - 2016-02-23 07:54 -0800
  Re: PING: HP laserjet experts Help! Adrian Caspersz <email@here.invalid> - 2016-02-22 22:33 +0000
  Re: PING: HP laserjet experts Help! "Mr. Man-wai Chang" <toylet.toylet@gmail.com> - 2016-02-23 06:42 +0800

csiph-web