Manufacturer: HP
Model: 0957-2231
Input: 120V, 50/60Hz
Output: 32V 375mA,16V 500mA

compatible with models:
HP Photosmart C4280
DeskJet D4260

Input Voltage: 100-240VAC ~ 600mA  50/60Hz 
1[ooo]3 Output: 
Pin 1 = +16V === 500mA 
Pin 2 = GND
Pin 3 = +32V === 375mA
Connector:  3 PIN Molex
  
Dimension: 11 x 6.5 x 4 cm approx. 
Weight: 350 grams.

Compatible Printers: IEC 60950
HP DeskJet F2110-All-in-One
HP DeskJet F2140-All-in-One
HP DeskJet F2188-All-in-One 
HP DeskJet F4172
HP DeskJet F4190-All-in-One
HP Photosmart C4250
HP Photosmart C4280-All-in-One
HP Photosmart C4383-All-in-One
HP Photosmart C4390-All-in-One
HP Photosmart C4380-All-in-One
HP Photosmart C4385-All-in-One
HP Photosmart C4388-All-in-One
HP DeskJet F2120-All-in-One
HP DeskJet F2128-All-in-One
HP DeskJet F2180-All-in-One
HP DeskJet F2187-All-in-One
HP DeskJet F4135-All-in-One
HP DeskJet F4140-All-in-One
HP DeskJet F4180-All-in-One
HP DeskJet F4185-All-in-One
HP Photosmart C4210-All-in-One
HP Photosmart C4240
HP Photosmart C4270-All-in-One
HP Photosmart C4273-All-in-One
HP Photosmart C4283-All-in-One 
HP Photosmart C4200 Series All-in-One
HP Photosmart C4300 Series All-in-One
HP Photosmart C4400 Series All-in-One
HP Photosmart C4500 Series All-in-One
HP Photosmart C5300 Series All-in-One
HP Photosmart C6300 Series All-in-One
HP Photosmart C4272
HP Photosmart C4280
HP Photosmart C4380
HP Photosmart C4450
HP Photosmart C4472
HP Photosmart C4480
HP Photosmart C4580
HP Deskjet D1400 Printer Series
HP Deskjet D1500 Printer Series
HP Deskjet D2400 Printer Series
HP Deskjet D1460
HP Deskjet D1470
HP Deskjet D1560
HP Deskjet D2460
HP Deskjet D4260
HP Deskjet D4360
HP Deskjet F2100 Series All-in-One
HP Deskjet F2200 Series All-in-One
HP Deskjet F4100 Series All-in-One
HP Deskjet F2180
HP Deskjet F2275
HP Deskjet F2276
HP Deskjet F2280
HP Deskjet F2288
HP Deskjet F2290
HP Deskjet F4180
HP 910 Printer Series

HP Photosmart 7760 Q3015A