VI
- 16
Trouble
Check:
(7) Image distortion
In communications
At the scanner
At the recorder
• Error code displayed (Refer to Section 1, "ERROR INDICATION"
in this chapter.)
• NCU PCB
• Main PCB
• Separation roller and its related sections
• LF roller and its related gears
• Solenoid and the planetary gear train
• Drive motor and its harness
• Main PCB
• Compression springs beneath the recording head
• Platen and its related gears
• Solenoid and the planetary gear train
• Drive motor and its harness
• Main PCB
[ 6 ] Others
Trouble
Check:
(1) When you turn the power ON,
the beeper sounds.
• Main PCB
TIP:
The beeper sounds with one of the following three beep
codes:
Beep code
In approx. 2-second cycle of
Defective device
Beep code 1
LHLHLHLHm
RAM
Beep code 2
HLHLLHLHm
EEPROM
Beep code 3
HLHLHLHLm
Program ROM
H: Beeps at 1.5 kHz for 0.1 second
L:
Beeps at 1.2 kHz for 0.1 second
m: 0.5-second mute
Between L and H, H and L, or L and L is a 0.1-second pause
each.
Summary of Contents for FAX 750
Page 4: ...CHAPTER I GENERAL DESCRIPTION ...
Page 11: ...CHAPTER II INSTALLATION ...
Page 12: ...CHAPTER III THEORY OF OPERATION ...
Page 14: ...III 1 1 OVERVIEW Not provided on the FAX 910 ...
Page 24: ...III 11 Active Gears on the Inner Side of the Drive Unit ...
Page 26: ...III 13 Active Gears on the Inner Side of the Drive Unit ...
Page 30: ...III 17 Location of Sensors and Actuators 1 ...
Page 31: ...III 18 Not provided on the FAX 910 Location of Sensors and Actuators 2 ...
Page 34: ...III 21 FAX750 FAX770 FAX 910 FAX 920 FAX 921 MFC 925 FAX870MC FAX 930 FAX 931 MFC970MC ...
Page 39: ...CHAPTER IV DISASSEMBLY REASSEMBLY LUBRICATION AND ADJUSTMENT ...
Page 44: ...IV 4 n n Disassembly Order Flow ...
Page 48: ...IV 8 4 Disconnect the panel main harness ...
Page 52: ...IV 12 ...
Page 70: ...IV 30 Remove the two screws and lift up the paper feed chute ...
Page 72: ...IV 32 ...
Page 78: ...IV 38 ...
Page 86: ...IV 46 1 17 Harness Routing ...
Page 88: ...IV 48 ...
Page 89: ...IV 49 2 LF roller ASSY 3 Platen frame ASSY ...
Page 90: ...IV 50 ...
Page 91: ...IV 51 4 Separation roller and main frame ...
Page 92: ...CHAPTER V MAINTENANCE MODE ...
Page 99: ...V 6 Scanning Compensation Data List ...
Page 150: ...CHAPTER VI ERROR INDICATION AND TROUBLESHOOTING ...
Page 168: ...July 98 5X4401 Printed in Japan ...
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