it might have something to do with it but on the other hand what does this have to do with the pb unit. When the code comes up you turn off the machine unplug the unit and it works fine. try next time it comes up turn off the power buttons unplug the power cord wait 1 min plug it in and see if it resets that way. 1. should of ask this first does it come up with the machine pluged in always or just after a while it comes up..you do have the firmware for the6500 and not the 1050 right
Solution ID TAUS0800001EN* Solution Usage
Description
C-C101 (CC101) after performing PM.
Solution
CAUSE: When the sub power switch (SW2) is ON, no response is received from the Printer Control Board (PRCB) within the specified time.
SOLUTION:Replace the PRCB(p/n A03U R759 00).
SPECIAL NOTE : Solution contribution by Cesar Jimenez, Production Print/SSD