Ricoh A293 Manuale di servizio - Pagina 7

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Rev. 10/2002
4.5.3 FUSES............................................................................................4-94
4.5.4 VARIABLE RESISTORS ................................................................4-95
4.5.5 LEDS ..............................................................................................4-95
4.6 SPECIAL TOOLS AND LUBRICANTS ....................................................4-95
4.6.1 SPECIAL TOOLS ...........................................................................4-95
4.6.2 LUBRICANTS .................................................................................4-95
4.7 FIRMWARE HISTORY .............................................................................4-96

PREVENTIVE MAINTENANCE

5. PREVENTIVE MAINTENANCE SCHEDULE .............................. 5-1
5.1 PM TABLE.................................................................................................5-1

REPLACEMENT AND ADJUSTMENT

6. REPLACEMENT AND ADJUSTMENT........................................ 6-1
6.1 EXTERIOR ................................................................................................6-1
6.1.1 FILTERS...........................................................................................6-1
Ozone Filter: Duct .................................................................................6-1
Filter Vacuum........................................................................................6-1
6.2 DOCUMENT FEEDER ..............................................................................6-2
6.2.1 COVER REMOVAL ..........................................................................6-2
6.2.2 FEED UNIT REMOVAL AND SEPARATION ROLLER
REPLACEMENT...............................................................................6-4
6.2.3 FEED BELT REPLACEMENT ..........................................................6-5
6.2.4 PICK-UP ROLLER REPLACEMENT ................................................6-6
6.2.5 SENSOR REPLACEMENT...............................................................6-7
Entrance and Registration Sensors ......................................................6-7
Width Sensor ........................................................................................6-8
Exit Sensor and Inverter Sensor ...........................................................6-9
6.2.6 TRANSPORT BELT REPLACEMENT............................................6-10
6.3 SCANNER UNIT......................................................................................6-11
6.3.1 EXPOSURE GLASS.......................................................................6-11
6.3.2 LENS BLOCK .................................................................................6-12
6.3.3 ORIGINAL SIZE SENSORS ...........................................................6-13
6.3.4 EXPOSURE LAMP .........................................................................6-14
6.3.5 SCANNER MOTOR / MCU.............................................................6-15
Scanner Motor ....................................................................................6-15
MCU....................................................................................................6-15
6.3.6 SCANNER WIRES .........................................................................6-16
Rear Scanner Drive Wire ....................................................................6-19
Front Scanner Drive Wire ...................................................................6-20
Reinstallation ......................................................................................6-21
6.4 LASER UNIT ...........................................................................................6-23
6.4.1 CAUTION DECAL LOCATIONS .....................................................6-23
6.4.2 LD UNIT REPLACEMENT..............................................................6-24
6.4.3 LASER BEAM PITCH ADJUSTMENT ............................................6-25
6.4.4 POLYGON MIRROR MOTOR REPLACEMENT ............................6-29
A292/A293/B098
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