Service manual

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EPSON LQ-300+ Revision C
Operating Principles Printer Mechanism 35
The following table shows the various carriage speed modes.
Table 2-4. Carriage Speed Mode
Carriag
e speed
mode
CR drive
frequency
[Hz]
Printing
mode
Phase
drive
[pps]
Current limit (A/phase) Adjacent
dot
resolution
[dpi]
Head drive
frequency
[Hz]
Printing speed
Carriage speed
mode at power
down
High or
low speed
printing
Front
rush
High
speed
Normal
speed
Low
speed
Rear
rush
A3600
Color 2-2 0.79 0.79 0.70 0.70 0.70
45 1350 High speed draft 10cpi C {
BW 2-2 0.70 0.59 0.59 0.59 0.59
B3375
Color 2-2 0.79 0.79 0.70 0.70 0.70
48 1350 High speed draft 12cpi E {
BW 2-2 0.70 0.59 0.59 0.59 0.59
C2700
Color 2-2 0.79 0.79 0.70 0.70 0.70
60 1350
High speed draft 15cpi
Draft 10cpi
Bit image 60 dpi
F {
BW 2-2 0.70 0.59 0.59 0.59 0.59 Draft 12cpi
D2250
Color 2-2 0.79 0.79 0.70 0.70 0.70 1440/21 1286 High speed draft 17cpi
F
{
BW 2-2 0.70 0.59 0.59 0.59 0.59 72 1350 Bit image 72 dpi
E1800
Color 2-2 0.79 0.79 0.70 0.70 0.70 80 1200 Bit image 80 dpi
Gx
BW 1-2 0.65 0.65 0.59 0.59 0.59 90 1350
High speed draft 20cpi
Draft 15cpi
Bit image 90 dpi
F 1350 Both 1-2 0.65 0.65 0.59 0.59 0.59 120 1350
Draft 20/17cpi
NLQ 10cpi
Bit image 120 dpi
Ix
G 1125 Both 1-2 0.65 0.65 0.59 0.59 0.59 144 1350 Bit image 144 dpi I x
H 900 Both 1-2 0.65 0.65 0.59 0.59 0.59 180 1350 NLQ 15cpi I x
I 675 Both 1-2 0.65 0.65 0.59 0.59 0.59 240 1350 NLQ 17/20cpi J x
J 450 Both 1-2 0.65 0.65 0.59 0.59 0.59 - x