Brother HL-1230 Service Manual page 68
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Also See for HL-1230:
- Service manual (227 pages) ,
- User manual (116 pages) ,
- Parts reference list (23 pages)
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CHAPTER 3 THEORY OF OPERATION
HL-1450/1470N
The reset IC is a RN5VD42A. The reset voltage is 4.2V (typ.) and the LOW period of reset is
80ms (typ.)
1.3.9
Engine I/O
HL-1230/1440
Fig. 3-22 shows the engine interface circuit. The interface with the engine PCB is by full-
duplex synchronous serial method.
HL-1450/1470N
Fig. 3-23 shows the engine interface circuit. The interface with the engine PCB is by full-
duplex synchronous serial method.
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Fig. 3-22
Fig. 3-23
Fig. 3-24
3-18
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