Brother HL-1850 Service Manual page 81
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Also See for HL-1850:
- Service manual (303 pages) ,
- Quick setup manual (2 pages) ,
- Guide d'installation rapide (2 pages)
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CHAPTER 3 THEORY OF OPERATION
(2) USB interface
Stores the data received from the PC into DRAM as controlled by the DMA controller. The
transmission speed is 12Mbps.
(3) Engine GA transfer circuit
Communicates with the engine GA by a full-duplex synchronous serial method. The
communication speed is 520Kbps.
Fig. 3-4
3-4
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