Overview; Required Adjustment - Epson 680Pro - LQ B/W Dot-matrix Printer Service Manual

EPSON Stylus COLOR 680/777/777i

5.1 Overview

This section describes the procedure for adjustments required when the printer is
disassembled and assembled for repair or service.

5.1.1 Required Adjustment

Table 5-1 lists all the necessary adjustments for this printer. If any service listed in this
table is carried out, all adjustments corresponding to that service item should be
performed to ensure proper operation of the printer.
Table 5-1. Required Adjustment
1
Head ID
Service item
input Change
Printhead removal NA
Printhead
Q
replacement
Main board
Q
replacement
CR Unit replacement
NA
or removal
CR Motor
NA
replacement
Printer mechanism
Q
replacement
Waste Ink pad
NA
replacement
NOTE: " " : Required Adjustment. The number in the circle shows the
¡
required adjustment order.
"NA": Not applicable.
NOTE: Following adjustments are not required on this product.
- Platen Gap adjustment
- Head Angular adjustment.
Adjustment
2 3 4
Bi-D Protection
Ink USB ID
Adjustme Counter
input
nt reset
NA Q NA NA
R S NA NA
NA R S NA
NA Q NA NA
NA Q NA NA
R S
NA NA
NA NA NA Q
This section describes the detailed procedures of each adjustment by Adjustment
Program.
In this printer, it is necessary to set the adjusting information for each printer
mechanism in order to maintain consistent printing function and quality, eliminating
differences of each printer mechanism's characteristics. Therefore, in case that the
combination of the printer mechanism and main board changes or the print head is
replaced during the repair service, you must set and save the correct information to the
MAIN board, using the exclusive adjustment program.
This section describes the detailed procedures of each adjustment by Adjustment
Program.
5
In case any parts is removed and assembled on the repair product
while running the Adjustment program, turn off the printer
certainly.
Overview
Revision B
101