asked Oct 11, 2012 at 11:04am
Hp HP LaserJet 4M

Is my HP Laserjet 4M formatter PCA faulty?

My ultra reliable HP Laserjet 4M from 1994 has a fault - the first fault in 20 years.

The faults appeared in the following sequence:
1) Error code 62.1
2) Error code 53
3) Error code 80 service 0006

Initially I thought the postscript SIMM was faulty in SIMM slot 1. However, when I removed this SIMM I got error code 80. If I remove the postscript SIMM and the JetDirect card then it there are no error messages.

I performed an engine test as explained on this web site. The print output was a perfect set of lines.

Does this mean my formatter PCA is faulty or is there another faulty board or problem?

I would be grateful for any feedback.

I live in the UK where the cost of replacement parts is very expensive. I don't really want to try replacing boards by trial and error so your help would be appreciated.

62.1 is a SIMM error
53 is a memory error
80 is a JetDirect card error
Try removing the JetDirect and see if it goes to ready. If it doesn't then I would suspect you do have formatter issues since I don't think all 3 of those would fail simultaneously.
We've got some good formatter boards if you need one. Click on my name to email me for pricing/ordering info.
by moe on Oct 11, 2012 at 11:12am Add comment
I removed the JetDirect and postscript memory. After warm up it goes to ready. During this phase I can hear the fan, main motor and pick-up motor working for a short period. It appears to start-up normally. However if I use the menu to ask for a self test print then it automatically switches off. It also switches off if I attempt to make a print using the parallel port. Is this the formatter, DC controller or power supply?

Thanks for any ideas

by gib139920 on Oct 11, 2012 at 2:53pm Add comment
Since the engine test works fine, I would lean towards a bad formatter. Now since the formatter has been in the printer for a long time if it was my printer, I would turn the power off, remove the right side cover and then remove the formatter from the printer and put it back in just to see if maybe one of the contacts is having issues. Nothing to lose.
by dmzcompute on Oct 11, 2012 at 4:16pm Add comment