Brother HL-4040CN Service Manual page 158

Assembling Note:
When assembling the Registration relay PCB ASSY, put the section "A" of the Registration
relay PCB ASSY into the section "B" of the Transfer HVPS PCB unit.
"B"
"A"
Transfer HVPS PCB unit
Registration relay PCB ASSY
<Bottom side>
Fig. 3-53
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