The HP Laser MFP 135a is a versatile multifunction printer that offers print, copy, and scan capabilities. Here are the key specifications for this printer:

Model Name: HP Laser MFP 135a
Product Number: 4ZB82A
Functions: Print, copy, scan
Print Speed: Up to 21 pages per minute
Print Quality (Black): Up to 1,200 x 1,200 dpi
Connectivity:

Ports: Hi-Speed USB 2.0
Wireless Capability: Not available
Copy Features:

Maximum Number of Copies: Up to 99 copies
Copy Reduce/Enlarge Settings: 25% to 400%
Copy Speed (Black, Normal): Up to 20 copies per minute
Copy Resolution: Up to 600 x 600 dpi
Paper Handling:

Input Capacity: Up to 150 sheets
Output Capacity: Up to 100 sheets
Supported Media Sizes: A4, A5, B5, Letter, Legal, Executive, and more
Supported Media Types: Plain, Thick, Thin, Cotton, Color, Preprinted, Recycled, Labels, CardStock, Bond, Archive, Envelope
Automatic Document Feeder (ADF) Capacity: Standard, 40 sheets
Physical Dimensions:

Maximum Dimensions (W x D x H): 406 x 424 x 253 mm (approximately 15.98 x 16.59 x 9.96 inches)
Weight: 7.46 kg (approximately 16.45 lb)
Power:

Energy Savings Feature: HP Auto-Off Technology; Power save
Power Supply Type: Internal (Built-in) power supply
Power Consumption:
Active Printing: 300 watts
Ready: 38 watts
Sleep: 1.9 watts
Manual Off: 0.2 watts
Auto Off/Manual On: 0.2 watts
Print Cartridges:

Number of Print Cartridges: 1 (black)
Replacement Cartridges: HP 105A Black Original Laser Toner Cartridge (~1000 yield); HP 106A Black Original Laser Toner Cartridge (~1000 yield); HP 107A Black Original Laser Toner Cartridge (~1000 yield) 1
This printer provides reliable performance at an affordable price, making it suitable for home offices or small businesses. If you have any specific questions or need further assistance, feel free to ask!