41955801TH Rev.8
76 /
Oki Data CONFIDENTIAL
2. Press the
2
2
2
2
2
and
6
6
6
6
6
keys until the SCAN number that corresponds to the unit subject to the
following test listed in Table 3-1. (Key
2
2
2
2
2
increments the item and Key
6
6
6
6
6
decrements the item.)
3. The test starts by pressing the
3
3
3
3
3
key. The SWITCH SCAN number begins to blink and the
number of the corresponding unit (1-4) is displayed along with the current status.
Manipulate each unit (Fig 3-1). The items are displayed in the LCD that corresponds to each
item. (The display differs for each sensor. See Table 3-1 for details.)
4. The SWITCH SCAN number reappears in the display status (blinking ceased) by pressing the
7
7
7
7
7
key.
5. Repeat Steps 2 to 4 as required.
6. Press the
4
4
4
4
4
key to end the test. (Status returns to that described in 1.)
SWITCH SCAN
SWITCH SCAN 00
1=H 2=L 3=H 4=L
3. The [XX.XX.XX] in [DISGNOSTIC MODE XX.XX.XX] that is displayed in the LCD display is the
ROM version. The set value for FACTORY WORKING MODE is displayed in the right side of
the bottom line. [SHIPPING] is normally set.
4. Proceed to each self-diagnosis step by pressing the
1
1
1
1
1
or
5
5
5
5
5
key.
(The menu item rotates by pressing the
1
1
1
1
1
,
5
5
5
5
5
key.)
3.1.2.2.2 Exiting the self-diagnostic mode
1. Turn the power OFF, then turn it on after ten seconds.
3.1.2.3 Switch scan test
This self-diagnosis is used for checking the input sensor and switch.
1. Press the
1
1
1
1
1
and
5
5
5
5
5
keys until the normal diagnostic mode is entered and [SWITCH SCAN] is
displayed on the top line.
(Key
1
1
1
1
1
increments the test item and Key
5
5
5
5
5
decrements the test item.)
DIAGNOSTIC MODE
XX.XX.XX FACTORY/SHIPPING
3.1.2.2.1 Entering self-diagnostic mode (Level 1)
1. The system maintenance menu mode is entered by turning the power ON while pressing the
)
)
)
)
)
,
1
1
1
1
1
,
6
6
6
6
6
, and
7
7
7
7
7
keys simultaneously.
2. Press the
)
)
)
)
)
key several times until [DIAGNOSTIC MODE] is displayed.
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...
