SynbiosVyse

asked Jul 29, 2009 at 6:49pm
Hp HP LaserJet 4

HP LaserJet 6L

I just installed the No Feed/Multiple feed kit.

1) Everything is unplugged from the printer

2) I plug in the power cable, it makes some normal noise, then the bottom green light comes on and is steady.

3) Without plugging in the parallel cable, I press the button briefly. The Data light comes on steady, the bottom light starts blinking, I have initiated a self-test print page.

4) 4 sheets of paper successfully feed through the printer, but no marks of any kind appear on the sheets.

5) The printer stops, and all 3 lights turn on and are solid.

What could the problem be? It is not printing at all.
When the 3 lights come on, push the button and hold it and you'll get a secondary light sequence. Tell us what lights are on.
by moe on Jul 29, 2009 at 7:08pm Add comment
Press the button again for the secondary error and report it here.
by dmzcompute on Jul 29, 2009 at 7:08pm Add comment
Top two lights are solid. I just checked the service manual and it says this could be the problem:



Beam Error. There are a number of causes
for this error, and some of the causes may
be transient. (They may disappear.)


1. Power-cycle the printer by unplugging the printer
and plugging it back in.
2. Make certain the Laser/Scanner Assembly is
correctly seated on the printer chassis.
3. Replace the Laser/Scanner cable (J208 on the DC
Controller).
4. Replace the Laser/Scanner Assembly.
5. Replace the DC Controller PCA.


I have only tried the first one, which didn't fix the issue.

Thanks for your help.
by SynbiosVyse on Jul 29, 2009 at 7:57pm Add comment
If you removed the covers to put in the new separation pad, then it is possible you may have dislodged one of the cables going to the laser/scanner assembly. Remove the cover again and the laser/scanner is the black box siting on top. Make sure the cables going to it are secure and where they terminate on the main board that they are also are secure. Also check the switch on the front of the laser/scanner that is pressed in by a protusion on the toner cover when you close the door.
by dmzcompute on Jul 29, 2009 at 8:26pm Add comment