Lexmark C720 SERIES Manuale di servizio - Pagina 7

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5024-001

Repair Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Removal and Cleaning Precautions . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Handling the Printed Circuit Boards with

MOS ICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

During Transportation/Storage: . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

During Replacement: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

During Inspection: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Image Belt Cartridge/OPC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

During Transportation/Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Parts Not To Be Touched. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Printer Removal Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

Precautions to Take Before Maintenance Work. . . . . . . . . . . . . . 4-5

Printer Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Upper Side Cover (L) Removal . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Side Cover (R) Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Side Cover (L) Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

Side F Cover (L) Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Top Cover Assembly Removal. . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Paper Exit Cover / Paper Exit Front Cover /

Paper Exit Cover (U) Removal. . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Transfer Cover Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

Rear Cover Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16

Rear Cover (U) Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

Base Cover (R) Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

Base Cover (L) Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

Cleaner Cover Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

Front Cover Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22

Printer Board Removals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23

Printer Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23

Main Engine (MCTL P.W.B.) Board Removal . . . . . . . . . . . . . . 4-24

IOD1 P.W.B. Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-26

IOD2 P.W.B. Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-28

Panel P.W.B. (Operator Control) Removal . . . . . . . . . . . . . . . . 4-29

Power Supply Unit (Low Voltage Power Supply -

LVPS) Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30

High Voltage Power Supply Unit (HVU) Removal . . . . . . . . . . . 4-33

Erase Lamp Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35

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