3.3 Disassembly procedure ………………………………………… 3-3
3.3.1 Cover ………………………………………………………… 3-3
3.3.2 Main board …………………………………………………… 3-6
3.3.3 HVPS board ………………………………………………… 3-6
3.3.4 SMPS board ………………………………………………… 3-7
3.3.5 Laser Scanning Unit (LSU) ………………………………… 3-7
3.3.6 Fuser unit …………………………………………………… 3-8
3.3.7 Main drive unit ……………………………………………… 3-9
3.3.8 Feed drive unit ……………………………………………… 3-10
3.3.9 Pick up/ Regi/ MP clutch …………………………………… 3-10
3.3.10 Pick up roller ……………………………………………… 3-11
3.3.11 Transfer roller ……………………………………………… 3-11
3.3.12 MP unit ……………………………………………………… 3-12
3.3.13 OPE board ………………………………………………… 3-13
3.3.14 Bin-full sensor ……………………………………………… 3-13
3.3.15 Regi. / Feed / Empty sensor ……………………………… 3-14
3.3.16 Cassette roller (Retard roller) …………………………… 3-15
4.1 Alignment and Adjustments ……………………………………… 4-1
4.1.1 Control Panel ………………………………………………… 4-1
4.1.2 Understanding The Status LED …………………………… 4-4
4.1.3 JAM Removal ……………………………………………… 4-5
4.1.4 Useful menu item for service ……………………………… 4-9
4.1.5 Periodic Defective Image …………………………………… 4-11
4.1.6
Using the Easy Printer Manager program and smart panel
… 4-12
4.1.7 Updating Firmware ………………………………………… 4-14
4.1.8 Tech Mode …………………………………………………… 4-17
4.2 Troubleshooting…………………………………………………… 4-22
4.2.1 Procedure of Checking the Symptoms …………………… 4-22
4.2.2 Error Message and Troubleshooting ……………………… 4-25
4.2.3 Image Quality problem ……………………………………… 4-41
4.2.4 Other errors ………………………………………………… 4-25
4.2.5 Network problems …………………………………………… 4-41
chapter 4 Alignment and Troubleshooting
Contents
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