41955801TH Rev.8
106 /
Oki Data CONFIDENTIAL
4.
REGULAR MAINTENANCE
4.1
Parts Replaced Regularly
Users are recommended to replace parts periodically according to the table below. (Print quality
cannot be assured and damages may occur, when the parts are not replaced.)
Part Name
Large toner
cartridge
Toner cartridge
ID
Fuser unit
Belt unit
Feed Roller
Components
Time of Replacement
When [Fill Toner] is displayed.
When [Fill Toner] is displayed.
When [Drum Life] is displayed.
When [Fuser Life] is displayed.
When [Belt Life] is displayed.
When non-feeding of paper is
frequent (a proper paper
amount is loaded).
Condition for Replacement
10,000 pages are
printed.
5,000 pages are printed.
20,000 pages are
printed. (3P/J)
60,000 pages are
printed.
60,000 pages are
printed.
120,000 pages are
printed (this is given as
a guide).
Adjustment (after replacement)
Parts are replaced periodically by users.
4.2
Cleaning
Clean the internal and external sections of the printer with waste and a small vacuum cleaner as
required.
Note: Do not touch the image drum terminals, the LED lens array, and the LED head connecter.
4.3
Cleaning the LED Lens Array
Clean the LED head array while white bands or lines (white-out, faint print) appear in the vertical
direction on a printed page.
Note: Be sure to clean the LED lens array with the LED lens array cleaner. (the LED head
cleaner is packed together with the toner cartridge.)
4.4
Cleaning the Pick-up Roller
Clean the pick-up roller if lines appear in the vertical direction on the printed page.
Note: Use a soft cloth in order to avoid scratching the roller surface.
White band, white stripe
(Void or light printing)
Summary of Contents for C7500n
Page 14: ...41955801TH Rev 8 14 Oki Data CONFIDENTIAL 2 2 Parts layout Figure 2 1 A A B B A A B...
Page 15: ...41955801TH Rev 8 15 Oki Data CONFIDENTIAL Top Cover Assy Figure 2 2 For 1200dpi For 600dpi...
Page 16: ...41955801TH Rev 8 16 Oki Data CONFIDENTIAL Printer Unit 1 2 Figure 2 3 A A...
Page 17: ...41955801TH Rev 8 17 Oki Data CONFIDENTIAL Printer Unit 2 2 Figure 2 4...
Page 18: ...41955801TH Rev 8 18 Oki Data CONFIDENTIAL Cassette Guide Assy L R Figure 2 5 A B B A C C C C...
Page 19: ...41955801TH Rev 8 19 Oki Data CONFIDENTIAL Duplex Unit A B D C A B C D E E F G G F Figure 2 6...
Page 84: ...41955801TH Rev 8 84 Oki Data CONFIDENTIAL Pattern 5 Pattern 6 Pattern 7...
Page 177: ...41955801TL Rev 8 4 Oki Data CONFIDENTIAL 49 35 50 44 51 50 43 46 47 48 36 Main Assembly 3 3...
Page 191: ...41955801TL Rev 8 10 10 Oki Data CONFIDENTIAL 2nd 3rd Tray 1 2 3 4 8 5 6 7...
