E-Studio 453 internal print problem

[scepter2112]

I have two seperate 453 with normal copy proccess fair to good, however internal print (Meter reading, 9 start printout) are Blank or Black prints, replaced SYS and SYS RAM with no success. Both machine previously had High voltage leaks that have been repaired.

[LA TECH]

reformat the Hdd and reload or upgrade firmware

[Mr Spock]

Check / reset the memory modules.

[scepter2112]

Thanks for the suggestion guys tried both. After much head scratching and quite a few parts. It turned out to LGC and SYSRAM. Also made CQ much better. The system asic and logic asic must communicate more than I figured