![background image](http://html1.mh-extra.com/html/okidata/ml172-series/ml172-series_service-manual_3653028004.webp)
Table of Contents
Page
....3.2.14 Platen Assembly
39
....3.2.15 Interconnect Board
40
....3.2.16 Paper Chute Assembly
41
....3.2.17 Bottom Paper Guide Assembly
42
....3.2.18 Near-end Lever And Bracket
43
....3.2.19 Bottom Near-end Lever
44
3.3 Adjustments
45
....3.3.2 Space Rack and Roller Gap Adjustment
46
3.4 Printer Self-Tests
47
3.5 Preventive Maintenance
48
4 Interfacing Techniques
4.1 Interfacing Techniques
49
5 Failure Analysis Procedures
5.1 Failure Analysis Procedure
50
....RAP Index
51
........Board layout and Wiring - ML182Plus and ML182Turbo
52
........Board layout and Wiring - ML172 and ML182
53
........Pin Numbers and Signals
54
........Check Points for Printed Circut Boards - 172
55
........Check Points for Printed Circuit Boards - ML182
56
........Check Points for Printed Circuit Boards - ML182Plus and
ML182Turbo
57
........RAP #1: Power is on but carriage does not move
58
........RAP #2: Power LED lights, but the carriage does not
move
59
........RAP #3: Carriage movement is abnormal when power is
turned on
60
........RAP #4: Homing operation is normal, but the indicators
(LED1 to LED9) are abnormal when power is turned on.
61
........RAP #5: Fuse F1 on power supply board (SLPB) blows
when power is turned on.
62
........RAP #6: Fuse F1 on the control board blows when power
is turned on.
63
........RAP #7: Neither spacing nor printing performed while
receiving data.
64
........RAP #8: Spacing is normal, but nothing is printed while
receiving data.
65
........RAP #9: Printer stops printing.
66
........RAP #10: Wrong characters are printed or some
characters are missing.
67
........RAP #11: Some dots are missing.
68
........RAP #12: Print is light.
69
........RAP #13: Line feed is not performed.
70
........RAP #14: Fuse F1 on power supply board blows while
receiving data and printing.
71