Toshiba 4550, Service Manual

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[4550 SERVICE HANDBOOK] 2510001 1
GENERAL PRECAUTIONS REGARDING THE INSTALLATION AND 2510001 1
THE SERVICE OF THE COPIERS..................................................0-1 2510001 1
1. SPECIFICATIONS, ACCESSORIES AND OPTIONS..................................1-1 4550101 2
1.1 Specifications........................................................1-1 4550101 0
1.2 Accessories...........................................................1-4 4550104 0
1.3 Options...............................................................1-4 4550104 0
1.4 System List...........................................................1-5 4550105 0
2. ADJUSTMENT.............................................................2-1-1 2511802 2
2.1 TOSHIBA Supplies List...............................................2-1-1 2511802 0
2.2 List of Adjustment Jigs Used..........................................2-2 4011801 0
2.3 Error Codes...........................................................2-3 2H10203 0
2.4 DIP Switch/Jumper/VR Functions........................................2-4 4H50204 0
2.5 Self-Diagnosis Modes..................................................2-6 2H10205 0
2.5.1 Input Signal Check (Test Mode 03/04)...............................2-8 4H50208 0
2.5.2 Output Signal Check (03/04)........................................2-9 4H50209 0
2.5.3 Adjustment Mode (05)..............................................2-11 4H50211 0
2.5.4 Setting Mode (08).................................................2-14 2H10214 0
2.5.5 How to Register/Change ID Codes (Access Control Mode).............2-17 2H10217 0
2.6 Auto-Toner Sensor Adjustment.........................................2-18 2H10218 0
2.7 Exposure Adjustment..................................................2-19 4H50219 0
2.8 Adjustment of Drum/Heat Roller/Aliging Roller Speed, Aligning Value, 4H50221 0
Registration, Leading Edge in Image Shift, Leading Edge in Edge Erasing, 4H50221 0
Trailing Edge in Edge Erasing, Editing Position, Leading-Edge Void and 4H50221 0
Trailing-Edge Void...................................................2-21 4H50221 0
2.8.1 Adjustment of Drum/Heat Roller Speed..............................2-21 4H50221 0
2.8.2 Adjustment of Aligning Roller Speed...............................2-21 4H50221 0
2.8.3 Adjustment of Aligning Value......................................2-22 2H10222 0
2.8.4 Registration Adjustment...........................................2-23 2H10223 0
2.8.5 Adjustment of Leading Edge in Image Shift.........................2-24 4H50224 0
2.8.6 Adjustment of Leading Edge and Trailing Edge in Edge Erasing......2-24 4H50224 0
2.8.7 Adjustment of Editing Position (Trimming and Masking Copying).....2-26 2H10228 0
2.8.8 Adjustment of Leading-Edge Void and Trailing-Edge Void............2-27 4H50227 0
2.9 Check/Adjustment of High-Voltage Transformer.........................2-28 2H10224 0
2.9.1 Check/Adjustment of Main,Transfer and Separation Charger Outputs..2-28 2H10224 0
2.9.2 Check/Adjustment of Developer Bias Voltage........................2-30 2H10226 0
2.10 Adjustment of 24V DC Power Supply....................................2-31 2H10227 0
2.11 Installation of Carriage Drive Belt..................................2-32 2H10229 0
2.12 Adjustment of Mirrors and Lens.......................................2-33 4H50233 0
2.12.1 Adjustment of Focus and Horizontal Reproduction Ratio.............2-33 4H50233 0
2.12.2 Optical Axis Adjustment...........................................2-34 4H50234 0
2.12.3 Image Distortion..................................................2-35 4H50235 0
2.12.4 Image Inclination.................................................2-36 4H50236 0
2.12.5 Side Deviation of Lens Unit.......................................2-37 2H10235 0
2.13 Light Distribution...................................................2-38 2H10233 0
2.14 Side Deviation in Manual,Casstte,LCC and Pedestal Cassette Feeding...2-39 2H10236 0
2.15 Positions for Paper-Size Switch Tabs.................................2-41 50H0237 0
2.16 Height Adjustment of Manual Feed Roller and Pick-Up Roller...........2-42 2H10239 0
2.17 Adjustment of Thickness of Magnetic Brush(Leveler)...................2-43 2H10240 0
2.18 Adjustment of Drum Sleeve Gap........................................2-43 2H10240 0
2.19 Developer-Pole Position Adjustment...................................2-44 2H10241 0
2.20 Adjustment of Main Blade and Recovery Blade..........................2-45 2H10242 0
2.21 Side Deviation of Stack Guides.......................................2-46 2H10243 0
2.22 Height Adjustment of ADD Pick-Up Roller..............................2-47 2H10244 0
2.23 Adjustment of LCC Separation Force...................................2-48 2H10245 0
3. GENERAL DESCRIPTION OF THE 4550..........................................3-1 4550203 2
3.1 Front/Rear View.......................................................3-1 4550203 0
3.1.1 Front Section View.................................................3-1 4550203 0
3.1.2 Rear Side View.....................................................3-2 4550204 0
3.1.3 ADF Front Section View.............................................3-3 4550205 0
3.2 Electrical Parts Layout...............................................3-4 4550206 0