Epson Stylus Pro 7400 Service Manual page 85

EPSON Stylus Pro 7400/7800/9400/9800
PF Motor life
Calculation method
The PF motor and any other parts or components in the paper feed mechanism
are not required to be replaced within the lifespan of the printer. This counter
can be used to troubleshoot a problem when the printer is used beyond its
service life. The remaining ratio is obtained based on a cumulative travel
distance of the PF motor.
Panel Display (remaining ratio of the life)
100 to 81 % E∗∗∗∗∗F
80 to 61 % E∗∗∗∗ F
60 to 41 % E∗∗∗ F
40 to 21 % E∗∗
20 to 1 % E∗
less than 1 % E
Maintenance call
Does not occur because the service is not required within the lifespan of the
printer.
Fatal error
Does not occur because the failure mode is not fatal.
Counter clear
Cleared by executing the "Reset PF Motor Counter" in the Adjustment
Program.
Continuity of counter
Continues to count even after the remaining life becomes 0% until the full-
digit of 32 bits counter reaches the maximum positive integers.
These values are intended to assist service personnel only.
C H E C K
P O I N T
Do not explain the meaning of the display to users.
Product Description
F
F
F
Head Unit life
Calculation method
The total life of the unit is calculated by multiplying the guaranteed number of
shots for each color nozzle by 180 nozzles. The printer counts the shooting
number of times by each color rounding the value by 2
calculates the remaining ratio of the unit life based on the total life and the
maximum cumulative shots among the all color nozzles.
Panel Display (remaining ratio of the life)
100 to 81 %
80 to 61 %
60 to 41 %
40 to 21 %
20 to 1 %
less than 1 %
Maintenance call
Does not occur for the head unit.
Fatal error
Does not occur for the head unit.
Counter clear
Cleared by executing the "Reset When PrintHead Change" in the Adjustment
Program.
Continuity of counter
Continues to count even after the remaining life becomes 0% until the full-
digit of 32 bits counter reaches the maximum positive integers.
These values are intended to assist service personnel only.
C H E C K
P O I N T
Do not explain the meaning of the display to users.
Control Panel
20
per every page, and
E∗∗∗∗∗F
E∗∗∗∗ F
E∗∗∗ F
E∗∗ F
E∗ F
E F
Revision B
85