Oki C7200 Service Manual page 5

Table of Contents
6 Troubleshooting Procedures
6.1 Before Troubleshooting
6.2 Checking before Troubleshooting Image Problems
6.3 Precautions in Troubleshooting Image Problems
6.4 Preparation for Troubleshooting
6.5 Troubleshooting
....6.5.1 LCD messages list
........Table 6-1-1 Operator Alarms (1/2)
....6.5.2 LCD Preparation for Troubleshooting
........(1) The printer does not operate properly after power-on.
........(2) Jams
............(2)-1 Paper Loading Jam (1st Tray)
............(2)-2 Paper Loading Jam (Multi-Purpose Tray)
............(2)-3 Paper feed jam
............(2)-4 Paper Exit Jam
............(2)-5 Duplex Jam
........(3) Paper Size Error
........(4) Image Drum Unit (ID) Up-and-Down Operation Error
........(5) Fusing Unit Error
........(6) Motor Fan Error
....6.5.3 Troubleshooting image problems
........(1) Light or Faded Image on Whole Page, or Color
Misalignment on Whole Page (Figure 6-2 A)
........(2) Dirty Background (Figure 6-2 B)
........(3) Blank Page (Figure 6-2 C)
........(4) Vertical Belt or LIne (Black or Color Belt, or Black or
Color Line) (Figure 6-2 D)
........(5) Vertical White Belt or Line, or Uneven-Color Belt or
Line (Figure 6-2 F)
........(6) Poor Fusing (Ink spreads or peels when touched with
fingers)
........(7) Defective Image of Regular Interval (See Figure 6-2 E)
........(8) Missing Image
........(9) Color Misalignment
........(10) Color Different from Original One
........Figure 6-3
7 Wiring Diagram
7.1 Resistance Check
7.2 Program/Font ROM Location
8 Parts List
Main Assembly - Figure 8-2
Main Assembly - Table 8-1 (1/3)
Main Assembly - Table 8-1 (2/3)
Main Assembly - Table 8-1 (3/3)
Top Cover Assembly - Figure 8-2
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