bids are invited for repair of hp design jet plotter t 1300; 1.1. replacement of printer head 1.1.1. removal of old/ defective printer head. 1.1.2 installation of new printer head. 1.1.3. testing and verification of proper functioning. 1.2. replacement of power supply 1.2.1. diagnosis of power related issues. 1.2.2. replacement of faulty power supply unit. 1.2.3. functional testing after replacement. 1.3. replacement of flat cable 1.3.1 removal of damaged flat cable. 1.3.2 fixing of new flat cable. 1.3.3 ensuring proper connectivity and signal flow. 1.4. replacement of main board 1.4.1 dismantling of existing main board 1.4.2 installation and configuration of new main board. 1.4.3 system testing to ensure stability. 1.5. general cleaning, lubrication and servicing. 1.6. plotter alignment and performance check 1.7. trial of plotter post completion of repair works.