Epson Stylus Pro 5000 Service Manual page 70

Stylus Pro5000
Table 3-10. Abnormal Phenomenon:
LED Indicates "Paper Jam".
Step
1 The same LEDs come on when the rear cover is open. Therefore,
check that the rear cover is securely closed to the printer side.
2 The printer refers to the points below to determine 'Paper Jam"
condition:
T
Point where the P sensor comes on. (Right after a sheet is
picked up from the paper cassette.)
T
Point where the PE sensor comes on.
T
Point where the PR sensor comes on. (Comes on at manual
rear insertion only.)
T
In the CR scanning area (Paper jam is detected based on the
change in the pulse output from the encoder belt.)
The printer monitors the conditions for these sensors and
determines if any paper or paper debris is remaining.
3 Check that the following connectors on the C228DRV board are
properly connected.
CN4 (P sensor), CN7(PE,PR sensors), CN12(PTS)
4 C228DRV board may not be detecting the signals from the
sensors. Therefore, replace it.
5 C228MAIN may be defective. Therefore, replace it.
Rev. A
Remedy
Table 3-11. Abnormal Phenomenon:
Any of the Ink End LEDs Stays On or Blinking.
Step
1 Check that the life of the ink cartridge currently installed as a
repair tool almost expires, or check that the ink cartridge is
installed to the printer.
2 Check that the ink out sensor and I/C out sensor are properly
functioning. Also, check if they are securely set to the specified
positions.
3 Check that the following connectors for the ink out sensor and
I/C out sensor on the C228DRV board are properly connected.
CN23(Bk), CN22(Y), CN20(Mm), CN21(Cc)
4 C228DRV board may not be detecting the signals from the
sensors. Therefore, replace it.
5 C228MAIN board may be defective. Therefore, replace it.
Chapter3 Troubleshooting
Remedy
3-5