MX3500N EXTERNAL VIEW AND INTERNAL STRUCTURE 5 – 15
N. Fuses/Thermostats
34 SCAN IN PWB Rectifies the waveform of scanner image data.
DOCC PWB Recognizes the document control pattern. Option
35 BOOT ROM PWB Stores the program to boot the printer controller.
36 PROGRAM ROM PWB Stores the program.
37 SCN Flash ROM PWB Stores the scanner control program.
38 HVR PWB Divides the primary transfer electrode for each color to improve the transfer capability.
39 DSPF memory PWB
No. Signal name Name Specifications Section
1 HLOUT_US Upper thermostat sub Prevents against overheating of the sub roller. Fusing unit
2 HLOUT_UM Upper thermostat main Prevents against overheating of the upper heat roller. Fusing unit
3 HLOUT_LM Lower thermostat Prevents against overheating of the lower heat roller. Fusing unit
4 F201 Fuse T6.3AH 250V DC power PWB
5 F202 Fuse T6.3AH 250V DC power PWB
6 F203 Fuse T6.3AH 250V DC power PWB
7 F204 Fuse T6.3AH 250V DC power PWB
8 F205 Fuse T6.3AH 250V DC power PWB
9 F1 Fuse 20A 125V AC power PWB
10 F2 Fuse 20A 125V AC power PWB
11 F3 Fuse T2AH250V AC power PWB
12 F4 Fuse T2AH250V AC power PWB
13 F1 Fuse 200mA 250V LCD INV PWB
14 F102 Fuse 125V 15A DC power PWB
15 F301 Fuse T5AH 250V DC power PWB
16 F101 Fuse T1AH 250V DC power PWB
17 F103 Fuse T8AH 250V DC power PWB
18 F1 Fuse 1.25A250V CL invertor PWB
No. Name Function/Operation Note
1
2
4
7
8
6
5
9
10
11
12
14
15
16
17
3
13
18
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