3.1.1 Precautions when assembling and disassembling ……… 3-1
3.1.2 Preautions when handling PBA …………………………… 3-1
3.1.3 Releasing Plastic Latches ………………………………… 3-1
3.2 Parts for Maintenance and Repair ……………………………… 3-2
3.2.1 Replacement interval for parts with a limited life ………… 3-2
3.2.2 Printer Cleaning ……………………………………………… 3-3
3.3 Information Related to Disassembly and Assembly ………… 3-4
3.3.1 Special service parts ……………………………………… 3-4
3.3.2 Screws used in the printer ………………………………… 3-5
3.4 Disassembly Procedure ………………………………………… 3-8
3.4.1 Cover ………………………………………………………… 3-8
3.4.2 ADF Assy (Only 4 in 1 model) ……………………………… 3-9
3.4.3 OPE unit ……………………………………………………… 3-11
3.4.4 Sheet ADF …………………………………………………… 3-12
3.4.5 Scanner Assy ………………………………………………… 3-13
3.4.6 CIS unit ……………………………………………………… 3-14
3.4.7 Middle Cover ………………………………………………… 3-15
3.4.8 Wireless LAN PBA (Only wireless model) ……………… 3-17
3.4.9 ITB …………………………………………………………… 3-18
3.4.10 Fuser ………………………………………………………… 3-19
3.4.11 HVPS board ………………………………………………… 3-20
3.4.12 Main PBA …………………………………………………… 3-20
3.4.13 SMPS board ……………………………………………… 3-21
3.4.14 LSU Unit …………………………………………………… 3-21
3.4.15 Holder Pad ………………………………………………… 3-22
3.4.16 Transfer roller Assy ………………………………………… 3-23
3.4.17 Pick up roller ……………………………………………… 3-24
3.4.18 Main drive unit ……………………………………………… 3-25
4.1 Alignment and Adjustments ……………………………………… 4-1
4.1.1 Control Panel overview …………………………………… 4-1
chapter 4 Alignment and troubleshooting
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