This printhead is suitable for Ricoh L5160 based printers. This is the original Ricoh part.
 
The following items are expressly excluded from warranty coverage:
defects related, in any way, to the use of non-original inks
clogged, missing or deviated nozzles
defects related to misuse, abuse, accident, neglect, lack of use, or improper storage when not in use for extended periods
defects related to failure to perform periodic maintenance as specified in the user documentation; operation for unintended purposes
defects related to improper loading of media
all other defects, failures or damage not considered manufacturing defects
defects related to third-party applications, software, parts, components, or peripheral devices, including any bulk ink system.
defects that are merely cosmetic in nature.
Technical Specifications
Size: 89(W) × 69(D) × 24.51(H) mm (3.5" × 2.7" × 1.0") excluding cables & connectors
Number of Nozzles: 1,280
Nozzle spacing (Within a row): 0,1693 mm/row
Nozzle spacing (Row to row distance): 0.55 mm 
Method: Piston pusher with metallic diaphragm plate
Drop volume: Binary mode : 7pl / Grey-scale mode : 7-35pl *depending on the ink
Jetting Frequency: Binary mode : 30kHz / Grey-scale mode : 20kHz
Compatible ink: Latex
This printhead carries a manufacturer warranty. Country of origin : Japan
We recommend to change the head cables when installing a new printhead. 
 
Printer compatibility
Ricoh Pro L5130
Ricoh Pro L5160