2JZ/2JX/2JV/2H7-1
2-2-1
2-2 Electrical Parts Layout
2-2-1 Electrical parts layout
(1) PWBs
Figure 2-2-1 PWBs
1. Engine PWB (EPWB)................................... Controls the other PWBs, electrical components and optional devices.
2. Main PWB (MPWB) ..................................... Controls the image processing and operation panel.
3. Power source PWB (PSPWB) ..................... Gen24 V DC, +12 V DC and 5 V DC; controls the fuser heaters.
4. ISM PWB (ISMPWB) ................................... Controls the scanner section.
5. ISC PWB (ISCPWB) .................................... Controls the shading correction and AGC of CCD.
6. Inverter PWB (INPWB) ................................ Controls the exposure lamp.
7. CCD PWB (CCDPWB)................................. Reads the image of originals.
8. Main operation PWB (OPWB-M) ................. Controls touch panel and LCD indication.
9. Right operation PWB (OPWB-R) ................. Consists of the operation keys and display LEDs.
10. Left operation PWB (OPWB-L) .................... Consists of the operation keys and display LEDs.
11. Upper operation PWB (OPWB-U)................ Consists of the operation keys and display LEDs.
12. Front operation PWB (OPWB-F).................. Consists of the display LEDs.
13. LCD PWB (LCDPWB).................................. Controls LCD indication.
14. LCD inverter PWB (LINPWB) ...................... Controls LCD back light.
15. Main high voltage PWB (MHVPWB) ............ Generates high voltage for main charger high voltage and developing
bias.
16. High voltage control PWB (HVCPWB)......... Controls high voltage for developing bias.
Machine front
Machine inside
Machine rear
1
10
4
6
13
11
14
3
16
15
21
(40/40 ppm,
50/40 ppm)
21
(25/25 ppm,
30/30 ppm)
17
41
26
25
24
23
34
33
32
31
30
19
42
43
18
20
40
35
36
37
38
39
22
2
7
5
9
8
12
44
45
29
28
27
Summary of Contents for TASKalfa 250ci
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Page 390: ...2JZ 2JX 2JV 2H7 1 2 3 2 Power source PWB ...
Page 395: ...2JZ 2JX 2JV 2H7 1 2 3 7 Engine PWB ...
Page 412: ...2JZ 2JX 2JV 2H7 1 2 3 24 Main PWB ...
Page 430: ...2JZ 2JX 2JV 2H7 1 2 3 42 Feed PWB 40 40 50 40 ppm model Feed PWB 25 25 30 30 ppm model ...
Page 450: ...2JZ 2JX 2JV 2H7 2 4 8 ...
Page 493: ...INSTALLATION GUIDE FOR PAPER FEEDER ...
Page 503: ...INSTALLATION GUIDE FOR 3000 SHEETS PAPER FEEDER ...
Page 558: ...INSTALLATION GUIDE FOR CENTER FOLDING UNIT ...
Page 572: ...INSTALLATION GUIDE FOR MAILBOX ...
Page 580: ...INSTALLATION GUIDE FOR HOLE PUNCH UNIT ...
Page 592: ...INSTALLATION GUIDE FOR JOB SEPARATOR ...
Page 602: ...INSTALLATION GUIDE FOR FAX System ...
Page 619: ...INSTALLATION GUIDE FOR DT 710 ...
Page 622: ...INSTALLATION GUIDE FOR DUCT UNIT ...
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