Epson Stylus Pro 3800 - Checking the print head nozzles

Epson Stylus Pro 3800/3800C/3850/3880/3885/3890 Revision C
DISASSEMBLY & ASSEMBLY Disassembly/Assembly Procedure (Group 1) 109
4.3.3.14 Disassembling the OPERATION, PANEL, ASSY.
1. Remove the OPERATION, PANEL, ASSY. (p106)
2. Remove the four screws that secure the SHIELD PLATE to the backside of the
OPERATION, PANEL, ASSY. See Figure 4-21.
 Four C.B.P. 3 x 8 screws (6 ± 1 kgf.cm)
3. Remove the SHIELD PLATE and the BOARD ASSY., PANEL from the
OPERATION, PANEL, ASSY.
Figure 4-21. Removing the SHIELD PLATE
Figure 4-22. Removing the BOARD, ASSY., PANEL
 When installing the SHIED PLATE, be sure to insert its two
positioning holes over the guide pins on the OPERATION
BUTTON.
See Figure 4-21.
 When installing the BOARD ASSY. PANEL, be sure to insert
its four positioning holes over the guide pins two each on the
OPERATION BUTTON and the OPERATION PANEL.
See Figure 4-22.
OPERATION, PANEL, ASSY.
SHIELD PLATE
C.B.P. 3x8
positioning point
BOAD ASSY., PANEL
positioning point