Day1
What is printer, history of printer, Types of printer
Types depend upon mechanism
Input and output ports, types and its classification
Day2
Dot matrix printer , mechanism, daisy wheel printer, chain printer, drum printer, printer head,
Day3
dot matrix printer block diagram and its working function
Day4
Printer head problem and its trouble shootings
printing mechanism of dot matrix
Day5
power supply section, control section, processor section and trouble shootings
Day6
Paper feeder section, stepper motors
Day7
general trouble shootings, and assembling.
Day8
How inkjet printer works, working block diagram of inkjet
Day9
Ink jet nozzles and its function, Sensors and its function
Day10
Decoder strip, stepper motor, control bus, pinch roller and its trouble shootings
Day11
Catridge sensor, paper feeder sensor, door sensor and its trouble shootings
Day12
General trouble shootings
Day13
General trouble shootings and assmbling
Day14
What is laser printer, how laser works working block diagram of laser printer
Day15
Laser circuit, how laser circuit works, And trouble shootings
Day16
Toner catridge and its working, how to place the catridge about deflon drum,
Day17
Control unit, fusing unit, power unit and its trouble shootings
Day18

Lens assembly, ram slots and usages USB related problem and trouble shootings

Day19
general trouble shootings
Day20
General trouble shootings and assembling
Day21
Doubt clearence And final test