Service manual in pdf for HP3550 CLJ

[tmiller]

Hi everyone,

Well thanks to this resource I have the printer working very well. There is one issue, I can't access the service menu. I tried the code from the manual as well as several other combinations but no joy. Any ideas?

Thanks for your consideration.

Tom

[redcow]

Yes, all 598 pages

[tmiller]

Thanks Redcow, for the reply.

I found it after reading through this forum and doing a bit of googling. Now I need to find out why the factory code will not unlock the service mode. Maybe a cold start will do it.

Regards,
Tom

[cs_steve]

Did you use PIN code 10350003?

[tmiller]

Yes, and several other combinations such as 10355003, etc. I did a hard reset and retried - no luck. Then a reset of the nvram and still no access.

Some facts - it's a used printer and has an empty Y toner module. I tried to print something by disabling the monitoring and that did not work. I am waiting on a new toner, due tomorrow. I have never seen it print.

Regards,
Tom

[tmiller]

Replaced the bad toner cart. but it still will not let me in to the service mode.
Prints very well though.
Any ideas?