V1 -58 5.4.4 Replacing ROM1 -60 5.4.5 SPCNT board replacement precautions1 -61 5.4.6 Data initialization through service operation1 -62 5.5 Protective Mechanism1 -62 5.5.1 Data battery backup function1 -62 5.5.2 BJ cartridge maintenance features1 -63 5.5.3 Heat protection mechanism1 -63 5.5.4 Overcurrent protection1 -64 5.5.5 Lightning protection1 -64 5.5.6 Power leakage protection1 -65 6. QUALIFICATION REQUIRED FOR INSTALLATION WORKChapter 2: Technical Reference2 - 1 1. COMPONENT LAYOUT2 - 3 2. SCANNER MECHANISM2 - 6 3. PAPER SUPPLY MECHANISM2 -11 4. PRINTER SECTION2 -18 5. BJ CARTRIDGE2 -18 5.1 Structure2 -21 5.2 BJ Head Driver Block Diagram2 -23 5.3 Printing Signal2 -25 6. ELECTRIC CIRCUIT2 -25 6.1 Component Block Diagram2 -26 6.2 Circuit Board Components2 -29 6.3 Flow of Image Signals2 -34 7. COMMUNICATION SYSTEM OPERATIONS2 -34 7.1 FAX/TEL Switching2 -34 7.1.1 Settings2 -34 7.1.2 Parameters2 -35 7.2 Answering Machine Connection2 -35 7.2.1 Settings2 -35 7.2.2 Parameters2 -35 7.3 Manual/Auto Reception Switching2 -35 7.3.1 Settings2 -35 7.3.2 Parameters2 -36 8. NEW FUNCTION2 -36 8.1 High-speed Transmission2 -36 8.1.1 V.8/V.34 protocol2 -50 8.2 JBIG Image Compression Encoding Method2 -50 8.2.1 Outline of the JBIG image compression encoding method2 -51 8.2.2 Single progression sequential bi-level image compression method2 -52 8.2.3 Encoding method2 -59 8.2.4 Construction of image data with JBIG image compression encoding2 -60 8.2.5 Explanation of bi-level image header section (BIH)
