1000018516 + 1000006751 - Pump motor (+ pinion) Roland RF-640

1000018516 – Roland RF-640 suction pump motor

The Roland SH1421-5042 motor – OEM ref. 1000018516 (also 22435106 / ‘103-593-1041’) drives the suction pump in the ink circuit.

Via its pinion, it drives the pump which performs the purging and priming of the printheads during cleaning operations. A faulty motor prevents suction and compromises the priming of the printheads.

Genuine Roland (OEM) part, supplied with its cable; drive bracket and pinion (part no. 1000006751) fitted, as shown in the photograph.

Technical specifications

• OEM reference: 1000018516 (variant 22435106)
• Manufacturer: Roland
• Part type: Pump drive motor (with pinion)
• Motor designations: SH1421-5042 / 103-593-1041
• End cap: drive pinion – ref. 1000006751 (GEAR S14S5(B12), variant 1000022951)
• Origin: genuine Roland part (OEM)
• Shipping: Shipped ready to install

Compatibility & use

• Roland RF-640 / RF-640A
• Roland VS-640i / VS-540i / VS-300i
• Roland RA-640 / RE-640

Function

• Drives the ink circuit suction pump
• Ensures the purging and priming of the printheads via its pinion
• Controlled by the maintenance station’s electronics
• Maintains the suction required for cleaning cycles

Signs of wear

• Pump no longer creates suction
• Ineffective purging / priming of printheads
• Printheads not primed, ink shortages
• Maintenance error reported by the machine

Replacing the pump motor restores suction and head priming, and ensures reliable cleaning cycles.

♻️ DG Spare Parts – European specialist in spare parts for large-format printers and plotters.