Epson 440 Service Manual page 80

Chapter 3 Disassembly and Assembly
Figure 3-8. Printhead Unit Removal
REQUIRED ADJUSTMENT
When you remove or replace the printhead unit, be sure to perform the following adjustments:
1) Ink Initial Charge Operation (Refer to Chapter 4 / Section 4.2.2.2.)
2) VH Voltage Writing Operation (Refer to Chapter 4 / Section 4.2.2.3.)
3) Head Angle adjustment (Refer to Chapter 4 / Section 4.2.2.4.)
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