Epson Stylus Pro 7400 Service Manual page 111

EPSON Stylus Pro 7400/7800/9400/9800
Sensor Check
The status of the following sensors can be checked.
Table 1-54. Sensor Statuses
Sensor Name
CR origin sensor
Paper thickness sensor
Paper lever sensor
PG origin sensor
Pump phase sensor
Left and right ink lever sensor
Front cover sensor
Presence or absence of the
Maintenance Tank
Presence or absence of the Ink
Cartridges
Edge sensor AD
IM sensor AD
Rear sensor AD
Head temperature
Driver temperature
Pressure sensor
Presence or absence of the
Take-up reel machine
Product Description
Remark
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Explanation of the displayed number
• 00: Paper thickness is 0.3mm or less
• 10: Paper thickness is 0.4mm to 0.8mm
• 11: Paper thickness is more than 0.9mm
• 01: Paper Set Lever is released
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The anti-home side tank is not displayed on the Stylus
Pro 7400/7800.
The status is displayed by each color.
• Slot number is displayed: Not installed
• Slot number is Not displayed: Installed
The displayed values are:
• Difference between ON and OFF statuses
(Displayed on the center of the screen)
• Values at ON status (Displayed on the right side)
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This is not displayed on the Stylus Pro 7400/7800.
Encoder Check
The travel of each motor for CR shaft (Carriage) and PF shaft (Paper Feed) can be
confirmed by the slid (encoder) value which is displayed in encoder pulse.
Fan Operation Check
The operation of each fan is can be checked.
NOTE 1: "Paper3" (paper suction fan 3) is not displayed on the Stylus Pro 7400/
7800.
2: Paper suction fan located at the Carriage home side is referred to as
Paper suction fan 1. "Fan 2" is the center one, and the one at the anti-
home side is "Fan 3".
Control Panel
Revision B
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