Oki Microline 390

3.1.7 Line feed circuit
..........................................................
3-9
3.1.8 Alarmcircuits
............................................................
3-9
3.1.9 Paper end detection circuit
...............................................
3-10
3.1.10 Powersupply
...........................................................
3-11
3.2
Mechanical Operation
...................................................
3-12
3.2.1 The printhead mechanism and its operation
...............................
3-12
3.2.2 Spacing
................................................................
3-14
3.2.3 Head gap adjusting
......................................................
3-16
3.2.4 Ribbon drive
............................................................
3-18
3.2.5 Paperfeed
..............................................................
3-20
3.2.6 Paper end detection
.....................................................
3-27
3.2.7 Semi-automatic sheet feeder (SASF)
.......................................
3-28
3.2.8 Reversing continuoussheets
.............................................. 3-31
4. ASSEMBLY/DISASSEMBLY
................................................... 4-l
4.1
Precautions for Parts Replacement
4-l
4.2
MaintenanceTools
.......................................................
4-2
4.3
Disassembly/Reassemblyof Procedure
...................................... 4-3
4.3.1 Separatorassembly
.......................................................
4-4
4.3.2 Printhead
................................................................
4-5
4.3.3 Uppercoverassembly
.....................................................
4-6
4.3.4 Controlboard
............................................................
4-8
4.3.5 Operator board
......................................................... 4-10
4.3.6 Bailarm
.............................................................
4-12
4.3.7 Connection board (SRBS)
.................................................
4-12
4.3.8 ICcardpanel
............................................................
4-14
4.3.9 Bailarmbar
.............................................................
4-15
4.3.10 Transformer
............................................................
4-16
4.3.11 Filterassembly
.......................................................... 4-17
4.3.12 Power supply board
.....................................................
4-18
4.3.13 Connectorcord
.........................................................
4-19
4.3.14 Ribbon drive gear assembly
..............................................
4-20
4.3.15 Space motorassembly
...................................................
4-22
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