Ricoh D127 Service Manual page 7

HDD Encryption Recovery from a Device Problem ............................ 2-41
Restoring the Encryption key ............................................................. 2-42
Clearing the NVRAM .......................................................................... 2-43
3. PREVENTIVE MAINTENANCE..................................................... 3-1
3.1 MAINTENANCE TABLES .......................................................................... 3-1
3.2 HOW TO CLEAR THE PM COUNTER ...................................................... 3-2
4. REPLACEMENT AND ADJUSTMENT ......................................... 4-1
4.1 PRECAUTIONS ......................................................................................... 4-1
4.1.1 GENERAL ......................................................................................... 4-1
4.1.2 LITHIUM BATTERIES....................................................................... 4-1
4.1.3 HALOGEN-FREE CABLE ................................................................. 4-1
4.1.4 STATIC ELECTRICITY ..................................................................... 4-1
4.2 SPECIAL TOOLS AND LUBRICANTS ...................................................... 4-2
4.3 EXTERIOR COVERS AND OPERATION PANEL ..................................... 4-3
4.3.1 REAR COVER .................................................................................. 4-3
4.3.2 COPY TRAY ..................................................................................... 4-3
4.3.3 OPERATION PANEL ........................................................................ 4-4
4.3.4 RIGHT DOOR ................................................................................... 4-5
4.3.5 BYPASS TRAY ................................................................................. 4-5
4.3.6 PLATEN COVER AND ARDF SENSOR ........................................... 4-6
4.4 SCANNER UNIT ........................................................................................ 4-7
4.4.1 SCANNER COVER AND EXPOSURE GLASS ................................ 4-7
4.4.2 LED UNIT ......................................................................................... 4-8
4.4.3 SCANNER MOTOR .......................................................................... 4-9
4.4.4 SCANNER HP SENSOR .................................................................. 4-9
4.5 FUSING ................................................................................................... 4-10
4.5.1 FUSING UNIT ................................................................................. 4-10
4.5.2 EXIT SENSOR ................................................................................ 4-10
4.5.3 HOT ROLLER STRIPPER PAWLS................................................. 4-11
4.5.4 HOT ROLLER AND FUSING LAMP ............................................... 4-12
4.5.5 THERMOSWITCHES AND THERMISTOR .................................... 4-13
4.5.6 PRESSURE ROLLER ..................................................................... 4-14
4.5.7 FUSING NIP BAND CHECK BY-PASS (CHECKING THE NIP BAND)
4-15
4.6 PCU AND QUENCHING LAMP ............................................................... 4-16
4.6.1 PCU ................................................................................................ 4-16
4.6.2 QUENCHING LAMP ....................................................................... 4-17
SM iii D127/D128