Oki OKIFAX 5750 Maintenance Manual page 773

High voltage control board H10
No. Description
01 High voltage output NG
02 Heater NG
03 Cover open NG
04 Photo sensor NG
Operation control board P76/P77, and LCD unit
No. Description
01 LCD display NG
02 Operation not responded
03 Transfer to hiper power save mode NG
04 Return from hiper power save mode NG
IDU/toner lock out detect board DLK
No. Description
01 Toner lock out detect NG
02 Image Drum unit lock out detect NG
Option memory expander board RA1
No. Description
01 RA1 error
Option G4/ISDN I/F control board G4A
No. Description
01 ISDN Board NG (01)
02 ISDN Board NG (02)
03 ISDN Board NG (03)
04 ISDN Board NG (04)
05 ISDN Board NG (05)
06 CPU ROM HASH NG
07 CPU RAM NG
08 PROGRAM HASH NG
09 RAM NG
10 DPRAM NG
11 G4 mode communication NG
12 G3 mode communication NG
13 G4 mode PC loading NG
14 Power ON NG (01)
15 Power ON NG (02)
41285901TH Rev.3
Remarks
Print alarm 4, etc.
Print alarm 4, etc.
Close the cover, etc.
Paper JAM, etc.
Remarks
LCD not displayed (LCD failures excluded)
Key press or LCD invalid
Main power off invalid
Main power on invalid
Remarks
Invalid Toner cart.
Invalid Image Drum unit
Remarks
LCD display or test print NG
Remarks
ISDN Board NG (code:01) at self diagnosis
ISDN Board NG (code:02) at self diagnosis
ISDN Board NG (code:03) at self diagnosis
ISDN Board NG (code:04) at self diagnosis
ISDN Board NG (code:05) at self diagnosis
CPU ROM HASH NG at self diagnosis
CPU RAM NG at self diagnosis
PROGRAM HASH NG at self diagnosis
RAM NG at self diagnosis
DPRAM NG at self diagnosis
Communication error at G4 mode on ISDN
Communication error at G3 mode on ISDN
PC loading error (G4 program)
LCD display "ISDN BOARD I/F ERROR"
at power on
G4A board isn't detected
See:
See:
See:
See:
Figures 3.6-1, 2
See:
-
Figure 3.7-1
Figures 3.7-2, 3, 4
Figures 3.7-5, 6, 7
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-
-
Figure 3.7-1
Figure 3.7-8
Figures 3.7-2, 3, 4
Figures 3.7-5, 6, 7, 9, 10
Figures 3.7-11, 12
Figures 3.7-1, 2, 3, 4, 8
Fgirues 3.7-1, 2, 3, 4, 5,
6, 7
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