I am getting a 654 HW error everytime i power on my IBM infoprint 21
laser printerand i cant print , Does anyone have any idea what can be
wrong?
Sure.. the 654 is an MCU communication error, so the MCU card is
probably bad (it's located near the front left side of the printer,
under the operator panel). If the MCU is good, the controller card is
the 2nd most likely suspect.
The least expensive way to fix the problem would be to purchase a used
Infoprint 21 with a bad fuser (one that is posting a 454 error), and
put your good fuser in that IP 21. Then make sure that the controller
card in your IP 21 is good by swapping it in the operational printer,
and sell the good controller card -- you might come out a few dollars
ahead in the end.
Rick Ekblaw
