Kyocera FS1010 Delayed printing 1st Page

[compsos]

Hi Termacadon
Yes it is confusing and I have only seen it on FS1010s. I currently know of a 2nd faulty machine out at a remote site, so was hoping to crack the problem with this one.
I have 2 old FS1010s for parts so may try swapping more parts. That was actually how I changed the FW from the 1st Post.
As for the page count only 17431. Only just run in. Other units had less than that.
The issue seems like a sensing circuit "needs" to charge up before turning on the laser but the paper has already gone past.
TIA

[termacadon]

Sorry i cant be of more assistance, but when you do find the problem... You probably gonna wanna kick yourself.

[compsos]

Success

A solution has been found. Thank you to Steveauh (Townsville)

Kyocera in their wisdom have used a foam insulator on the 3 solenoids that disintegrates over time regardless of use.

1. Open the right side of the printer
2. Disconnect all connections to engine board
3. Remove engine board
4. Remove plastic guard (white)
5. remove all 3 solenoids
6. Replace all pads on the solenoids that come up against stops
   Registration Solenoid has 2 pads (1 against the solenoid frame and the other on a stop arm, the others just the frame pad)
7. Keep thickness to around .4 - .5mm Too thick on register arm will cause early printing.
8. Reassemble

And that is it. The arms were being magnetically delayed due the metallic contact. It seems to be a regular problem in this chassis FS1000 to FS1030.

[steveauh]

HI thanks for the credits
Steve

[Tonul]

Another late printing Kyocera-Mita FS-1010

Hi,

I recently acquired a used FS-1010 with similar problem. The unit still has original toner in it, has put out only 3800 pages and has firmware version 80.05-94, released 22/Apr/2002. At first it wouldn't even print the status page, ending with paper jam error. I googled into this thread and replaced the foam insulators of 3 solenoids on the right side of the unit as suggested. Eyballing couldn't reveal anything wrong with the foam insulators but it helped - the printer did manage to print out the status page. At the moment my satisfaction seems to be a bit premature as the problem reappears every time after cold start or start from idle mode - the first page starts printing late, either from the middele of the page or even at the very bottom(in which case the printer stalls with paper jam error). When power is recycled, the printer resumes normal work.
What could precipitate this strange problem?
Any help is appreciated, thanks!

Tonu

[compsos]

Hi Tonul
I think you have missed a foam insulator. On the solenoids there are 4. 2 are on one solenoid.

[Tonul]

I think I've got it this time

I replaced all the insulators, i.e. all 4 of them. At first I replaced them with double layer of electrical insulator tape but then ended up removing the material alltogeter as it somewhat delayed arm's movement because of some kind of sticking effect. As far as I understand the foam's sole purpose was to reduce the noise produced by clicking solenoids. I can live with little noise as I'm the only user using this printer.

After these modifications the problem still manifested itself. When I turned on the printer and did the status page, the page printed as supposed. If the printer is then left idling, the next print image shifted down the page. When another page was requested right after that, it came out proper again.

What I did next was that I removed the side panel and the white plastic panel covering the solenoids, turned on the unit and made it print the status page while watching it operate. The central solenoid (the one with the longest arm) did not move at all during the print cycle. That seemed odd. So I inserted a shrink tube over the arm's stop to bring the arm's end closer to the sprocket. After this the arm resumed work and the prints came out proper - no matter whether requested after idle or not. It seems the problem is solved. At least I haven't been able to reproduce it again!

What I think happened is following.
There is thick black plastic-like material attached to the underside of the longest(of the 3) solenoid arm. I suppose it is a magnet supposed help solenoid retract the arm. I believe over time the magnetic properties of this material weakened and the arm seized. Attaching some shrink tube over the arm's stop reduced otherwise too wide gap between the arm and the electric magnet and the arm started moving again.

I hope this is helpful to someone with similar problem - it does seem as a design flaw.

Regards
Tonu

[TheOwl]

Well after all that, I remember the issue now (I don't work with printers that often anymore).

Kyocera also released a bulletin about this issue as well back in the day (about 4 years ago) in regards to the solenoid wiring harness not being routed properly and jamming the actuator arm. I only ever had two machines do this, but that is always another thing to look for for anyone else that comes across the same issue.

[Tonul]

I think it must have been different problem the bulletin you referred to adressed (haven't seen it myself) - or maybe concerned units produced earlier. In my unit, the wiring was nicely routed with the help of a white plastic cover put over the solenoids. There was no way the wiring could get in the way of actuator arms.
Tonu

[steveauh]

its not that hard


I originally recommended using a thine felt pad or thin cardboard (0.5 - 1 mm thick) glued to the actuating arm using contact adhesive and NOT super glue (super glue goes hard and will eventually crack and fall off) also it was important to clean all the old residue orf the forme and its glue from the arms and parking supports so that they were not sticky.
I have done over 10 of these this way now and have had no problems with any of them so remember clean everything first and then replace the pads

[scoobysteve]

hi,

change the rego solenoid... that causes it..