Toshiba e-STUDIO4500c Service Manual page 418

SERVICE CALL CONDITIONS
SC360 D TD sensor (Vt high) error 1: K
SC361 D TD sensor (Vt high) error 2: M
SC362 D TD sensor (Vt high) error 3: C
SC363 D TD sensor (Vt high) error 4: Y
The Vt value of the black,
magenta, cyan, or yellow TD
sensor exceeds 4.5V for two
counts.
1. Turn the machine OFF and ON.
2. Check the black, magenta, cyan, or yellow TD sensor connector and
3. Check the drawer connector.
4. Replace the TD sensor.
5. After replacing the black TD sensor:
SC364 D TD sensor (Vt low) error 1: K
SC365 D TD sensor (Vt low) error 2: M
SC366 D TD sensor (Vt low) error 3: C
SC367 D TD sensor (Vt low) error 4: Y
The Vt value of the black,
magenta, cyan, or yellow TD
sensor is below 0.5V for 10
counts.
1. Turn the machine OFF and ON.
2. Check the TD sensor connector and harness between the TD sensor and
3. Check the drawer connector.
4. Replace the TD sensor.
5. After replacing the TD sensor:
harness between the TD sensor and PCU for damage.
Do SP3801 003-006 to initialize the new black, magenta, cyan, or yellow
TD sensor.
Execute SP3820 001 to do auto process control manually.
PCU for damage. Replace it if necessary.
Do SP3801 003-006 to initialize the new black, magenta, cyan, or yellow
TD sensor.
Execute SP3820 001 to do auto process control manually.
Black, magenta, cyan, or yellow TD
sensor disconnected
Harness between TD sensor and PCU
defective
Defective TD sensor.
TD sensor harness disconnected, loose,
defective
A drawer connector (located on the rear
of a development unit) disconnected,
loose, defective
TD sensor defective
4-40
April 2007