Epson Stylus Pro 7700 Service Manual page 163

Epson Stylus Pro 7700/7710/7700M/7710M/7900/7910/9700/9710/9900/9910/WT7900/WT7910/9890/9908/7890/7908
Symptom Occurrence condition
Print is blurred. When printing under the
following conditions, print
Print is thin.
becomes blurred or thin.
• Media transported in a high
temperature and humidity
environment.
• The CPF was left on the
printer for some time.
The printed part in the white • When water is attached on
ink becomes transparent. the part printed in the white
ink
• When scotch tape is
attached on the part printed
in the white ink
• When the printed part in
the white ink is laminated
The white density changes. • The ink cartridge is not
shaken once a week.
• When not printing more
than one month
• When [WHITE INK
REFRESH] is set to OFF
• When the printed part in
the white ink is laminated
Ink sedimentation, oozing In the case of High duty and
Bi-D
TROUBLE SHOOTING
Cause
If the CPF is left in a high temperature environment and then exposed
to a high humidity environment, spotted ink may not spread enough but
become small dot diameters. In such a case, print may be blurred or
thin. (It occurs conspicuously in yellow.)
Does not occur on the inside of
the roll not exposed to the air.
It occurs on the coated side exposed
to the moisture for a long time.
• Due to the characteristics of the white ink.
white color" cause.)
• Due to the reaction of the white ink to the lamination type or
method.
• Sedimentation of the white ink in the ink cartridge.
• Sedimentation of the white ink in the nozzle.
• Reaction of the white ink to the lamination type or method.
Because the drying time is not long enough, the media cannot absorb
ink anymore. (This easily occurs under a low-humidity environment.)
Remedies for Print Quality Troubles
• If the CPF is not used for a while, remove the roll from
the printer, wrap it in its individual bag, and then store it
in its individual box.
• Comply with the usage/storage environment.
(See above "Uneven • Do not let the printed film get wet.
• Do not attach scotch tape on the printed film.
• Sufficient prior evaluations should be performed in order
to select the most appropriate lamination type and
method.
• Turn the power on once a week, stir the white ink
cartridge and execute the [PRINT WITH WHITE INK] in
[NOZZLE CHECK].
• After the purchase, shake the cartridge box with the
cartridge inside for approximately five seconds before
storing it.
• Store it horizontally.
• When storing the white ink for a long time, shake the
cartridge box with the cartridge inside for approximately
30 seconds (100 times) once in every six months.
• Execute [WHITE INK REFRESH].
• Sufficient prior evaluations should be performed in order
to select the most appropriate lamination type and
method.
• Lower the white ink duty on the RIP setup or on the
image data.
• Print using Uni-D printing.
Revision I
Remedy/Points to be checked
163
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