General Repair Information - Epson LQ 1050 - B/W Dot-matrix Printer Technical Manual

4.1 GENERAL REPAIR INFORMATION

This chapter describes the disassembly procedures to be used for replacing any of the main components
of the FX-850\l 050.
Required and helpful tools, measuring instruments, and lubricants listed in Tables 4-1 through 4-3.
Description
Philips screw driver #2
Box driver (7 mm across)
Thickness gauge (0.50 mm)
Round nose pliers
Diagonal cutting nipper
Tweezers
E-ring holder #2.5
E-ring holder #3
E-ring holder #4
E-ring holder #5
Alcohol
Electric soldering iron
Brush No. 1
Brush No. 2
Cleaning brush
o:
Commercially available product
E:
EPSON exclusive tool
Description
Multi meter
Oscilloscope
Logic analizer
Description
o-2
G-27
Neji lock #2(G)
Adhesive tape
O: Commercially available product
E: EPSON exclusive product
Table 4-1. Maintenance Tools
Necessary
o
o
o
o
o
o
o
o
o
o
o
Table 4-2. Measuring Instruments
Specification
20 MHz or more
Table 4-3. Lubricants and Adhesive
Capacity
40 cc
40 gr
1000 gr
4-1
Convenient
o
0
0
o
Necessary
o
o
Availability Part No.
E B7 10200001
E
B702700001
E B 7 3 0 2 0 0 2 0 0
o
Part No.
B 7 4 3 8 0 0 2 0 0
B776700301
B 7 4 0 4 0 0 1 0 0
B740500 100
B64 1000100
B 7 4 0 9 0 0 4 0 0
B 7 4 0 8 0 0 7 0 0
B740200 100
Convenient
o