If your getting blank pages and every P-Code known to man, check the N38 ICP located at IP103.
It is protecting the supply for first and secondary transfer transformer power and is open circuit on the faulty boards I have checked.
A simple user error causing a 2nd transfer roller short, or excessively damp paper could be responsible and replacement of this $4 part is cheaper than the whole board. At your own discretion & risk.
Do NOT use a higher rating, for continued fire protection.
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