Reference Book
Electronic parts of an offset machine are :
Printed circuit boards (PCBs), IC chips, transistors, resistors, capacitors, diodes,
LEDs, no sheet detector, sensors, counter etc.
Pneumatic parts of an offset machine are :
Compressors for paper feeding, transferring and delivery
Hydraulic parts of an offset machine are:
Oil and grease pumping system.Additional Information:Pascal’s law is the basis of hydraulic drive
systems. As the pressure in the system is the same, the force that
the fluid gives to the surroundings is therefore equal to pressure x
area. In such a way, a small piston feels a small force and a large
piston feels a large force.Practical Activities- List out the different mechanical parts in an offset machine.
Assessment Activities - Collect various electronic components like resistors, capacitors, diodes,
transistors, IC chips. - Prepare a chart of various kinds of mechanical, electrical, electronic and
pneumatic parts of an offset machine. - Collect any four types of gears from your old toys.
- Identify various types of DC and AC motors used in your home or printing lab.
TE Questions - How does the working of a DC motordiffer from that of an AC motor?
- What are the different types of gears used in the construction of an offset
machine. - Draw the diagram of any two types of gears that you see on a cutting
machine. - How does a step up transformer differ from a step down transformer?
Identify the type of transformer that you see on an 11KV line near your
home.