Citizen CL-E700 Series - Replacing the Interface Board

Chapter 3 Disassembly and Maintenance
CL-E700 series 3-2
CHAPTER 3 DISASSEMBLY AND MAINTENANCE
TABLE OF CONTENTS
3-1.
Maintenance Precautions ............................................................................................ 3-4
3-2. Cleaning....................................................................................................................... 3-5
3-3. Lubrication ................................................................................................................... 3-5
3-3-1. Lubrication frequency ...................................................................................... 3-5
3-3-2. Types of lubricant ............................................................................................ 3-5
3-3-3. Quantity of lubricant ........................................................................................ 3-5
3-4. Maintenance Tools List ................................................................................................ 3-6
3-5. Quick Detachment of Major Parts ................................................................................ 3-7
3-5-1. SA Head .......................................................................................................... 3-7
3-5-2. SA Platen......................................................................................................... 3-8
3-5-3. SA Ribbon Tension Unit R ............................................................................... 3-9
3-6. Disassembly, Reassembly and Lubrication ................................................................. 3-10
3-6-1. “SA Top Cover” Block ...................................................................................... 3-12
(1) “SA Top Cover” Block.............................................................................. 3-12
(2) SA Top Cover.......................................................................................... 3-12
3-6-2. Unit Ribbon...................................................................................................... 3-13
3-6-3. “Unit Ribbon” Covers ....................................................................................... 3-15
3-6-4. “SA Fan” of the “Unit Ribbon” .......................................................................... 3-16
3-6-5. “SA Ribbon Tension Unit R”, “SA Ribbon Encoder” and Ribbon Gears........... 3-17
(1) “SA Ribbon Tension Unit R” and “SA Ribbon Encoder” .......................... 3-17
(2) Ribbon Gears.......................................................................................... 3-18
3-6-6. “SA Ribbon Motor F” and “SA Ribbon Control PCB” ....................................... 3-19
3-6-7. “Catch Ribbon Holder” and “Knob Ribbon Unit” .............................................. 3-19
3-6-8. “Plate Ribbon Guide Roller” Block................................................................... 3-20
3-6-9. “SA Ribbon Tension Shaft F” and “SA Ribbon Sensor” ................................... 3-21
(1) “Ribbon Sensor Frame F” Block ............................................................. 3-21
(2) “SA Ribbon Tension Shaft F” and “SA Ribbon Sensor”........................... 3-22
3-6-10. SA Opepane PCB............................................................................................ 3-23
(1) Unit Opepane.......................................................................................... 3-23
(2) SA Opepane PCB ................................................................................... 3-23
3-6-11. Case ................................................................................................................ 3-24
3-6-12. “SA Main PCB” and “SA Relay PCB”............................................................... 3-25
(1) “SA Main PCB” Connectors .................................................................... 3-25
(2) “SA Main PCB” and “SA Relay PCB” ...................................................... 3-25
3-6-13. Unit Mechanism............................................................................................... 3-27
3-6-14. “Unit Power Supply” and “Paper Holder” Block ............................................... 3-28
(1) “Unit Power Supply” Block and “Paper Holder” Block............................. 3-28
(2) Unit Power Supply .................................................................................. 3-29
(3) Plate Holder Paper L .............................................................................. 3-29
3-6-15. “SA Power SW Cable” and “Frame Bottom”.................................................... 3-30
3-6-16. SA Platen......................................................................................................... 3-31
3-6-17. “SA Head Up Sensor PCB”, “SA TRA Sen PCB”, “FFC TRA Sensor” and
“Leaf Adjust Sensor U” .................................................................................... 3-32