User Manual

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4.9 Level 2 Maintenance .................................................................................................................................4-6
4.9.1 Parts replacement ................................................................................................................................4-6
(1) Acoustic cover replacement .......................................................................................................4-7
(2) Tractor unit replacement ............................................................................................................4-8
(3) Cover replacement, including platen knob ................................................................................4-11
(4) Control panel replacement .........................................................................................................4-15
(5) Printing mechanism replacement ...............................................................................................4-16
(6) Power supply and fuse replacement .......................................................................................... 4-17
(7) RS-423 board replacement.........................................................................................................4-18
(8) ROM board (control board) replacement ..................................................................................4-19
(9) Platen roll assembly replacement ..............................................................................................4-21
(10) Paper feed motor (LF motor) replacement ................................................................................4-22
(11) Space motor (SP motor) assembly replacement ........................................................................ 4-23
(12) Sensor T replacement.................................................................................................................4-24
(13) Carriage unit replacement ..........................................................................................................4-25
(14) Print head and ribbon feed assembly replacement ....................................................................4-27
(15) Gear assembly replacement .......................................................................................................4-28
(16) Paper feeder assembly replacement ...........................................................................................4-29
(17) Card guide replacement .............................................................................................................4-30
(18) Ribbon shift unit (color kit) replacement...................................................................................4-31
4.9.2 Adjustment ..........................................................................................................................................4-32
(1) Print head gap adjustment ..........................................................................................................4-32
(2) Vertical alignment ......................................................................................................................4-34
(3) Top-of-forms adjustment (factory use) ...................................................................................... 4-36
4.9.3 Lubrication ..........................................................................................................................................4-37
(1) Ribbon drive assembly...............................................................................................................4-38
(2) Color ribbon shift motor (option) ..............................................................................................4-39
(3) LF gear bearing and continuous/single lever .............................................................................4-40
(4) Back cover assembly .................................................................................................................4-41
(5) Paper feed roller shaft ................................................................................................................4-42
(6) Shaft ...........................................................................................................................................4-43
(7) Stay shaft ....................................................................................................................................4-44
(8) Front and top covers (LA36N) ..................................................................................................4-45
(9) Front and top covers (LA36W)..................................................................................................4-46
(10) Sheet guide assembly ................................................................................................................4-47