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Check color of printing ink to ensure adherence to customer specifications.

What does an Inker do?

Compares color of printing ink with sample to ensure adherence to formula or customer specifications: Determines ink viscosity by timing flow from test cup and adds desired amount of solvent to meet viscosity requirements for kind of ink and application. Fills ink reservoirs in presses and adds more solvent to thin ink or uncovers reservoirs to allow evaporation of excess solvent during press run. May fill lubricating cups with oil and grease. May assist press operator to set up printing press.