LaserJasasked Mar 22, 2007 at 8:00am
HP 3500 59.99 error
At the mo its saying 59.99 error, have replaced the dc controler, reseated the connections to it and checked the cables for breakages, replaced the sensor and still no joy.
Unfortuneatly 2 others have been here before me to this printer so I may be trying to fix a problem that has been created by others but have been met with innocent faces.
I fixed 2 of them this week, so the first one wasn't a fluke. There are a few ridiculous fixes on the HP forum, fixya and helpowl that involve blowing air and spraying electronics cleaner. Doing a rain dance would work just as well.
When the printer is turned on it starts initalising (I'm a Brit) and starts to go through its checks, the motors start turning slowly and speed up then all comes to a standstill and the above error is displayed.
1. Faulty secondary transfer engagement sensor. Replace the secondary transfer engagement sensor.
2. Faulty secondary transfer engaging solenoid. Replace the secondary transfer engaging solenoid.
3. Faulty feed motor. Replace the feed motor.
4. Faulty DC controller PCB Action: Replace the DC controller PCB.
The first 2 items Stephen listed are on the Pickup/Feed Assm (3500/3550 part # RM1-0765-070CN). So I took it apart (not easy to get out either) & replaced the whole assm since I had one laying around which fixed the problem.
Thank you so much!!!
the first time i switch solenoids, and also made an insulation for it, because the foam was totally plain, it didnt work
the second time (now) im re-making the insulation for solenoid and also put electronic cleaner on paper sensor (it might be ok, because its says when paper tray 2 its empty or have paper) but either way i thinking about switch too with the other. what do you think?
Is very urgent for me to repair this printer. i will be in troubles if i dont.
xoxo C. Elena
I think the raindance was the clincher (jokes)
Seriously tho - that worn piece of rubber must cause the solenoid to short out when it pulls the latch in. It must get to the point where the latch actually touches the solenoid.
I might be wrong, but seems to be the only explanation for that perished out rubber to cause this fault.
Mine was causing some intermittent paper feeding issues too that I'm hoping will be resolved now.
(Trying again, this website thinks return means end of comment)
Thanks Moe, it seemed to work. As I did the rubber replacement I took some notes:
1. This is the solenoid marked SL4 in the service manual.
2. SL4 has a much shorter movement than SL1 and SL2, so it needs a much thinner landing pad, this probably why HP used rubber instead of felt.
3. When following the "Pick-up/feed assembly removal" procedure in the service manual (at least the copy I use), some steps could be improved:
4. Step 9 (removing clutch CL1) If the two screws are stuck, this can be combined with removing the Gear plate (step 12) while leaving the screws in place.
5. Between step 9 and step 10, you should remove the connector cover (officially step 23)
6. Steps 12 and 13 The gear numbers are not marked in figure 6-35, they are simply numbered from right to left in the picture (from left to right on the printer itself).
7. In step 13 (reinstallation tip), the gears are shown in figure 6-35 "above", not below.
8. Also in step 13 (reinstallation tip), you should also insert the axle for gear 1 into the printer, because it needs to grab a keyed hole inside the printer.
9. Also in step 13 (reinstallation tip), if tray 3 is installed, you need to press down on the big gear sticking out of tray 3 to make room for gear 2.
10. In step 14, this is the cover for SL2 (Tray 2 solenoid).
11. In step 17, note that the screw to the right is the unique screw with a thick shaft.
12. In step 19, the solenoid being removed is SL2 (Tray 2 solenoid)
13. In step 27 and 28, you need to look at both pictures (figure 6-24 and figure with no number) to find all the right screws. THIS MEANS YOU WILL ONLY REMOVE 4 SCREWS AT THE BACK OF THE ASSEMBLY (the ones surrounded by plastic). This one detailed wasted a lot of time as I tried to remove all 8 screws at the back, none of the screws at the front, and pulled the wrong green handle.
14. In the "Secondary transfer roller engaging solenoid (SL4) removal" procedure (page 265), both pictures show SL1 on the left and SL4 on the right. SL4 is the one with the decaying rubber landing pad.
I don't think loss of the rubber can short anything out, there is no current in those mechanical plates, but if the rubber gets sticky, it can prevent the moving plate from springing back fast enough when the current in the solenoid is turned off, thus failing to grab the gear when it should.
Thanks moe and jb_wisemo.
I just removed the sticky foam from the solenoid, and removed the adhesive with alcohol. I did not replace the foam or felt. I can hear the solenoid click now, but that's not a problem.
Problem is solved, thanks!
Be careful with the "left rod bracket". Mine disconnected internally, and it took me at least half an hour to reconnect it (I'll had to disassemble the left side of the printer)