Epson Stylus Pro 7700 Service Manual page 125

Epson Stylus Pro 7700/7710/7700M/7710M/7900/7910/9700/9710/9900/9910/WT7900/WT7910/9890/9908/7890/7908
Error
Section Error Name
No.
CR HP Sensor no detection
15 Sequence
error
Paper pressing system
16 Sequence abnormal measurement value
error
TROUBLE SHOOTING
Status
Due to one of the reasons listed on the
right, the Paper Pressing Plate does
not work correctly.
Detects a load over the specified
range when measuring it.
Remedies for Error Messages related to SpectroProofer/Auto Take-up Reel
Cause
There is some foreign material within the
carriage movement range.
Backing is not installed correctly.
White calibration tile holder is not installed
correctly.
• Paper that does not meet the
specifications is used.
• The printer is used out of the specified
usage environment.
Because the phases on the left and on the
right of the Paper Pressing Plate are
misaligned, and the plate is distorted, it is
blocking the carriage.
There is something wrong with the carriage
mechanism.
There is something wrong with the Paper
Pressing Motor.
Paper Pressing Unit is not installed
correctly.
A gear or a shaft making up the Paper
Pressing Unit is broken.
The phases on the left and on the right of
the Paper Pressing Plate are misaligned.
Remedy/Check Point Program Check
Remove the Auto Colorimeter
once, and remove the foreign
material around the backing (if
any).
Install the backing correctly.
Install the white calibration tile
holder correctly.
Check if the paper type and usage
environment are correct.
Synchronize the phases on the left
and on the right of the Paper
Pressing Plate. (See P.349)
Check the following and correct
the status or replace the
corresponding part(s) if any
abnormality is found.
• Origin detection flag for the
carriage
• Slipped-off or damaged carriage
belt
• Unhooked driven spring
• Damaged main shaft/sub shaft
of carriage
Replace the Paper Pressing Motor.
(See P.346)
Dowels and positioning holes on
the right and left plates that secure
the Paper Pressing Unit are mis-
aligned, or the screws that secure
the plate are loose.
Replace the Paper Pressing Unit.
(See P.349)
Synchronize the phases on the left
and on the right of the Paper
Pressing Plate. (See P.349)
Confidential
Revision I
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