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Summary of Contents for Toshiba 4550
- Page 1 Toshiba 4550 Service Manual Service Handbook www.electronicsrepair.net...
- Page 2 SPECIFICATIONS, ACCESSORIES, OPTIONS........1-1 4550101 2 Specifications............1-1 4550101 0 Accessories............1-4 4550104 0 Options...............1-4 4550104 0 System List............1-5 4550105 0 GENERAL DESCRIPTION OF THE 4550.........2-1 4550201 2 Functions of the 4550..........2-1 4550201 0 Front/Rear View............2-3 4550203 0 2.2.1 Front Section View..........2-3 4550203 0 2.2.2...
- Page 3 6.3.5 Control Signals............6-5 2510605 0 Disassembly and Replacement...........6-8 2510608 0 Adjustment............6-10 2510610 0 6.5.1 Drum and Heat Roller Speed Adjustment......6-10 2510610 0 OPTICAL SYSTEM............7-1 2510701 2 Functions.............7-1 2510701 0 Construction............7-1 2510701 0 Description of Operation..........7-6 2510706 0 7.3.1 Scanning Motor (M2)..........7-6 2510706 0 7.3.2 Mirror Motor (M4)/Lens Motor (M3)........7-6 2510706 0 7.3.3...
- Page 4 8.5.3.2 Aligning Motor Speed Adjustment........8-25 4550825 0 8.5.3.3 Aligning Value Adjustment........8-26 2510825 0 8.5.3.4 Registration Adjustment........8-27 2510826 0 8.5.3.5 Adjustment of Leading Edge in Image Shift......8-28 4550828 0 8.5.3.6 Adjustment of Leading Edge and Trailing Edge in Edge Erasing...8-29 4550829 0 8.5.3.7 Adjustment of Leading-Edge Void and Trailing-Edge Void..8-31 4550831 0 8.5.4...
- Page 5 11.2 Description of Functions..........11-3 2511103 0 11.3 Disassembly and Replacement.........11-4 2511104 0 FUSER UNIT/PAPER-EXIT UNIT..........12-1 4551201 2 12.1 General Description..........12-1 4551201 0 12.2 Description of Operations...........12-2 2511202 0 12.3 Functions of Each Part..........12-2 2511202 0 12.4 Heater Control Circuit..........12-4 4011204 0 12.4.1 Temperature Detection Unit........12-4 4011204 0 12.4.2...
- Page 6 15.6.1 Outline............15-14 4551514 0 15.6.2 Signals from the Copier to the ADF......15-14 4551514 0 15.6.3 Signals from the ADF to the Copier......15-15 4551515 0 15.7 Contents of Original Jams and ADF Errors......15-18 4551518 0 15.8 Detection of Original Sizes........15-20 4551520 0 15.9 Flow Charts............15-22 4551522 0 15.9.1...
- Page 7 TOSHIBA Supplies List..........19-2 2511802 0 19.3 Grease/Oil/Powder List..........19-4 2511804 0 19.4 Precautions for Storing and Handling Supplies.......19-6 2511806 0 19.4.1 Precautions for Storing TOSHIBA Supplies......19-6 2511806 0 19.4.2 Inspecting and Cleaning OPC Drum.........19-6 2511806 0 19.4.3 Checking Drum Cleaning Blade........19-7 4011807 0 19.4.4 Checking and Replacing Cleaning Felt Roller......19-8 4011808 0...
- Page 380 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 Front/Rear View............3-1 4550203 0 3.1.1 Front Section View..........3-1 4550203 0 3.1.2...
- Page 381 Oiling Cycle Table...........4-21 4H50421 0 Replacement Schedule of Disposable Parts and Supplies....4-22 4H50422 0 5. PRECAUTIONS FOR STORING AND HANDLING SUPPLIES......5-1 2511806 2 Precautions for Storing TOSHIBA Supplies......5-1 2511806 0 Inspecting and Cleaning OPC Drum........5-1 2511806 0 Checking Drum Cleaning Blade..........5-2 4011807 0 Checking and Replacing Cleaning Felt Roller......5-3 4011808 0...
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