Based on the provided information, here's a summary of the specifications for the described printer:

 Printer type: Laser

 Functions: Printer, Scanner, Copier

 Printer output: Monochrome

 Connectivity: USB, Network

 AirPrint supported: No

 Scanner: Yes

 Scanner resolution: Up to 1200 dpi

 Hardware Interface: Ethernet, USB 2.0

 Duplex: Manual

 Maximum Print Speed (Monochrome): 20 pages/min

 Print cost (Monochrome): Rs. 3.2

 Maximum Print Resolution (Monochrome): Up to 1200 x 1200

 Control Method: Application

 Printer Page size: A4, B5, Letter, Legal

 Compatible ink: HP 88A Black Original LaserJet Toner Cartridge

 Power wattage of printer: 480 watts (Printing), 186 watts (Copying from ADF), 4.5 watts (Ready), 1.1 watts (Sleep/AutoOff), 0.2 watts (Manual Off)

 Special Features: Network-ready

 Ideal Usage: Enterprise/Business, Frequent users (for fast, high-quality printing)

 Included Components: Power Cord, Flyer, USB Cable, Guide, CD, Errata, Phone Cord, Setup Poster

 WiFi band supported: WiFi 802.11a/b/g/n

 Duty Cycle (Maximum monthly recommended prints): Up to 8,000 pages per month

 What's in the box: HP LaserJet Printer, HP LaserJet print black cartridge, Getting Started Guide, printer documentation and software on CDROM, power cord

 Compatible Laser Toner: HP 88A Black Original LaserJet Toner Cartridge

 Page Yield: 1500 pages

 OS Compatibility: 

   Windows: 10 (32bit/64bit), 8 (32bit/64bit), 7 (32bit/64bit), Vista (32bit/64bit), XP (32bit) (SP2 or higher), Server 2012, Server 2008 (32bit), Server 2003 (32bit) (SP1 or higher)

   Mac OS X v 10.6.8 or higher

   Linux

 Warranty: 1 year from the date of purchase, with 1 Year next business day Exchange Support

 Pages per minute: 20 pages

 Cost per page: Rs 2.5 (Black and White)  As per ISO standards

Here's the summary of the specifications for the HP LaserJet Pro MFP M128fn:

 Brand: HP

 Manufacturer: Foxconn CQ China, Jabil Circuit (Guang Zhou) Limited

 Model: M128fn

 Model Name: LaserJet Pro MFP M128fn

 Product Dimensions: 59.7 x 33.2 x 40.8 cm; 11.1 Kilograms

 Item model number: M128fn

 Memory Storage Capacity: 128 MB

 Operating System Compatibility: Linux, Windows 8 (32bit/64bit), Windows 7 (32bit/64bit), Windows Vista (32bit/64bit), Windows XP (32bit), Windows Server 2008 (32bit)

 Hardware Interface: Ethernet

 Max Print Speed Monochrome: 20 ppm (pages per minute)

 Max Print Speed Colour: 20 ppm (pages per minute)

 Printing Media Type: Envelopes

 Printer Output Type: Monochrome

 Printing Technology: Laser

 Supports Dual-Sided Printing: No

 Printer Media Size Maximum: A4, B5, A6, DL, envelope

 Resolution: 1200 x 1200 dpi, 600 x 600 dpi

 Max Input Sheet Capacity: 150 sheets

 Compatible Devices: Smartphones, Tablets

 Special Features: Automatic Document Feeder, Fast Printing, Scanner, Copier

 Mounting Hardware: Power Cord, Flyer, USB Cable, Guide, CD, Errata, Phone Cord, Setup Poster

 Display Type: LED

 Wattage: 480 Watts

 Power Source: Corded Electric

 Batteries Included: No

 Batteries Required: No

 Connector Type: USB, Network

 Form Factor: AllinOne

 Country of Origin: China

 Imported By: HP India Sales Private Limited, Bangalore

 Item Weight: 11 kg 100 g