EPSON WF-7820 Series, WF-7830 Series, WF-7840 Series/EC-C7000 Revision A Adjustment Mechanism Adjustment / Check 181 Confidential Position of the PG Adjustment Cam PG can be adjusted by adjusting the cam as shown below. Figure 4-8. PG Adjustment Cam 188.8.131.52 PG adjustment procedure Rib To + PG: Max. To - PG: Min. Rib To - PG: Min. To + PG: Max. PG Adjustment Cam Left (Full side) PG Adjustment Cam Right (Home side) When performing PG adjustment, observe the following points. Perform PG adjustment before installing the CR Scale, after attaching the adapter. Move the CR unit left and right by holding the top of the CR timing belt. Be careful not to damage the nozzle surface of the printhead with the thickness gauge. When making the printhead touch the thickness gauge, be careful not to let the printhead run onto the thickness gauge.
Epson WF-7820 Series Service Manual Page 181-199
Epson WF-7830 Series Service Manual Page 181-199
Epson WF-7840 Series Service Manual Page 181-199
Epson EC-C7000 Series Service Manual Page 181-199