Sir, I need a printer scanner copier with the following functions/ requirements: 1. Auto duplex must 2. Laser Cartridge printer where ink shouldn't dried up if don't use for long time 3. Wifi n usb function both ( wireless) and mobile printing can be done. 4. Monochrome preferable 5. Sturdy/robust n long term reliable ( low maintenance must) 6. Home usage 7. Low cost printing 8. Budget 10k-20k 9. Good print/ scan/ copy Speed 10. No make preference. 11. Good warranty service from OEM. Please suggest 1-2 best models. Waiting for your reply sir..