Pf Motor Life; Head Unit Life - Epson Stylus Pro 4400 Service Manual

EPSON Stylus Pro 4400/4450/4800/4880/4880C

PF motor life

Calculate method
There are no parts that need to be replaced within product life period of
PF motor and paper feed mechanical drive system. Therefore it is used
as failure diagnosis when used over product life. Display life by
accumulating distance of PF operation when printing.
Display (Life)
100 ~ 81%
80 ~ 61%
60 ~ 41%
40 ~ 21%
20% ~ 1%
Less than 1% remaining
Maintenance call
It does not occur for it is not the target of service in product life.
Fatal error
It does not occur for failure mode is not fatal.
Counter clear
It is cleared by executing "PF Motor life accumulation counter""PF Motor
initialization" in special setting "Counter initialization menu".
Continuity of counter
If the life reaches to 0%, counter continues to count amount of full figure
as register of 32 bits and stop count up at maximum positive number.
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
E∗∗∗∗∗F
E∗∗∗∗ F
E∗∗∗ F
E∗∗ F
E∗ F
E F

Head unit life

Calculate method
It is calculated by accumulating amount of injection shots of each color,
amount of assured injection shots per nozzle x 180 nozzles, and finally
calculated as amount of maximum accumulative shots within each
color. Accumulate value of 2
Display (Life)
100 ~ 81%
80 ~ 61%
60 ~ 41%
40 ~ 21%
20% ~ 1%
Less than 1% remaining
Maintenance call
Does not occur.
Fatal error
Does not occur as head unit.
Counter clear
It is cleared by executing "Head unit life accumulation counter ""Head
unit initialization" in special setting "Counter initialization menu".
Continuity of counter
If the life reaches to 0%, counter continues to count amount of full figure
as register of 32 bits and stop count up at maximum positive number.
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.
Operating Panel
Revision C
20
shots per page print.
E∗∗∗∗∗F
E∗∗∗∗ F
E∗∗∗ F
E∗∗ F
E∗ F
E F
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