- Components identification & checking
- Analog electronics, Digital electronics
- Tools
- Advanced printer service
- Mechanical section
- All servicing
- Dot matrix printer head servicing method
- Different section
- ICS detail used
- Different connector’s socket
- Post error code
- Common problem of Different printers
- Trouble shooting Different branded printers
- Service tips all branded printers
- Error checking using simple idea
- Service manuals for all branded printers
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