Module 6(Chip-level Printer Repairing)

  • Introduction of  Printer, Classification of  Printer , Different sections of  Printer, Its details & Identification, Interface Section, Repairing of  Printer, Testing of Printer(Self Test or Test by computer )
  • Block  diagram of  DMP Printer and its description, Layout of DMP Printer, Paper sensor, Home Sensor, Front Panel Led Indicator, Carriage motor Driver, Paper feed motor drive, Print Head driver, Power Supply, Description of 24 V and 5 V power supply, CPU and DIP switch, GATE Array, RAM, ROOM Pins details, Fault finding of Printer
  • Types of  Inkjet Printer, Thermal Process, Print head, Different Sections of  Inkjet, Motor Sensor,  Caping  Locking, wiping, Splitting, Mechanism of  Inkjet Printer & Detail.
  • Function, Block diagram of  Laser Printer and its Process, Image Formation(Cleaning to fusing Process),Electronic section of  Laser Printer( Formater  PCA and DC Controller), Mechanical section of  Laser Printer( Paper feeding , Motor Solenoid), Fault finding of  Laser Printer, Refilling.


  • Introduction of all in one Printer, Printing Technology, Catridge Maintenance, Scanner Technology, Resolution function keys and operating Menu, Working of  different sections of all in one printer, Working of  Power supply Stage, Block Diagram of  ALL IN ONE Printer, Working of all sections ( PWM Regulator and Motor Driver, Control Panel Circuit, RAM and ROM stage, Voice codec Stage, FAX Modem Stage, Line side stage, DC Power Control Stage, Audio Controller stage, Encoder signal Inverter stage, Print Head catridge Controller Stage, Microprocessor Stage), All connector Detail, Mechanism of  ALL IN ONE Printer and details .