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VI –
14
[ 3 ]
Communications related
[ 4 ]
Paper/document feeding related
(1) No tone is transmitted.
• Main PCB
• NCU PCB
Trouble
Check:
Trouble
Check:
(1) Neither “COPY: PRESS
COPY” nor “FAX: NO. &
START” message appears
although documents are set.
• Sensors by using the maintenance-mode function No. 32.
(Refer to Chapter V, Section 3.8.)
• Actuators of the document front and rear sensors
• Main PCB
(2) Document not fed.
• ADF and its related sections
• Scanner motor and its harness
• Document feed rollers and their related gears
• Main PCB
(3) Document double feeding
• ADF parts
• Nip-related parts
• Multi-purpose sheet feeder
• Drum unit
• Heat-fixing unit
• Gear drive unit
• Main PCB
(4) Recording paper not fed.
Summary of Contents for MFC 4550
Page 5: ...CHAPTER I GENERAL DESCRIPTION ...
Page 14: ...CHAPTER II INSTALLATION ...
Page 15: ...CONTENTS 1 INSTALLING THE UPDATE DATA TO THE FACSIMILE EQUIPMENT II 1 ...
Page 18: ...CHAPTER III THEORY OF OPERATION ...
Page 49: ...CHAPTER IV DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Page 81: ...CHAPTER V MAINTENANCE MODE ...
Page 89: ...V 7 Scanning Compensation Data List 200 dpi ...
Page 133: ...CHAPTER VI ERROR INDICATION AND TROUBLESHOOTING ...
Page 163: ...MAIN 8 8 FAX3550 3650 8000P 8200P MFC4550 6550MC 7550MC MFC9000 9500 A ...
Page 185: ...D CONTROL PANEL 1 2 ...
Page 187: ...E POWER SUPPLY 120 V Low voltage power supply ...
Page 188: ...E POWER SUPPLY 200 240 V Low voltage power supply European versions ...
Page 189: ...E POWER SUPPLY 200 240 V Low voltage power supply Asian versions ...
Page 190: ...E POWER SUPPLY High voltage power supply ...
Page 191: ...Sept 98 5X52012 Printed in Japan ...