Ink System Unit Removal (Cap & Pump Unit ) - Epson 680Pro - LQ B/W Dot-matrix Printer Service Manual

EPSON Stylus COLOR 680/777/777i
4.2.9 Ink system unit removal (Cap & Pump unit )
1. Remove the Housing from the printer. (Refer to Section 4.2.1.)
2. Remove the Waste drain ink pad from the printer. (Refer to Section 4.2.6.)
3. Remove the LD roller holder from the Printer. (Refer to Section 4.2.8.)
4. Remove three screws (C.B.S 3x6 F/Zn) securing the Ink system frame and the Cap
assembly to the frame.
Figure 4-35. Removing three screws securing the Ink system
5. Remove the Ink system unit (Cap and Pump unit) carefully along with the Ink
system frame.
When the Ink system unit is removed, be careful that the gears do
not come off from each shaft on the Ink system frame.
Disassembly and Assembly
C.B.S 3x6 F/Zn screws
Disassembly
6. Release one hook for Cap assembly on the Ink system frame and take the Cap
assembly out from the Ink system frame.
7. Disconnect the waste drain ink tube carefully from the bottom of the Cap
assembly.
n Since the compression spring is included in the Pump assembly,
watch out for the spring and the gear that pop out from the unit
when the Pump assembly is removed from the Ink system unit.
n When replacing the cleaner head built in the Pump assembly, be
careful of the following points.
1) Do not touch the cleaner head with your bare hands. Ware
gloves or use tweezers.
2) Do not smear the head cleaner with oil or grease.
n When installing the Cleaner head, set the rubber side (black side)
facing toward the right side of the frame.
n When installing the Cleaner head, set the two square cut offs on
the Cleaner head into the two hooks on the Ink system.
n When replacing the Cap Assembly, do not touch the sealing
rubber portion of the Cap Assembly.
n The component parts in the Pump Assembly are not individually
supplied as ASP. So please replace the whole Pump Assembly
when replacing the Pump Assembly.
n Be careful not to crush or leave any stress on the ink tube
connecting the pump assembly and the cap assembly.
Revision B
Cleaner head
hook & cut off
85