Epson LQ-2550 Technical Manual page 214

REV.-A
Tool No.
Diagnostic
Tool
Adjustment
Cartridge
Cable (2 pin)
E594
Cable (3 pin)
E625
Cable (4 pin)
916
Cable (5 pin)
E600
E512 Cable (6 pin)
E649 Cable (9 pin)
Cable (18 pin)
E660 Connector
NOTES: 1. These cables and connectors are longer than the distance between the ROMA board and
the printer mechanism to make troubleshooting easier (Refer to Figure 5-2.).
2. In this chapter, the following abbreviations are used:
CR: Carriage
CS: Color select
PE: Paper end
PF: Paper feed
PG: Platen gap
LC: Loading
RL: Release
PT: Paper thickness
PW: Paper width
Table 5-1. Troubleshooting Tools
Item
Use with EPSON PC, APEX, EQUITY series
Use with EPSON QX-16
. Write mechanism initial value, and perform print
alignment adjustment
Between ROMA board (CN 15) and PE sensor
Between ROMA board (CN 13) and CR home
position sensor
. Between ROMA board (CN21 ) and case open
sensor
Between ROMA board (CN 19) and LD solenoid,
and LD sensor
. Between ROMA board (CN20) and RL solenoid,
and RL sensor
Between ROMA board (CN 12) and PT sol BQ765 105501
noid, and PT sensor
Between ROMA board (CN 17) and CR motor
Between ROMA board (CN 18) and PF motor
Between ROMA board (CN 16) and PG motor, and
PG home position sensor
Between ROMA board (CN9) and HF motor, CS
motor, and PW sensor
Between ROMA board (CN 10) and printhead
Between ROMA board (CN 1 1) and printhead
(18 pin)
Description
5-2
Part No.
B7651 10101
B7651 10201
Y 4 9 9 0 3 5 0 2 0
Y 4 2 7 3 0 7 0 0 0
B7651 10801
B7651 10901