Cleaning The Toner Control Sensor Board (Tcsb) - Konica Minolta bizhub PRO 920 Service Manual

Field Service Ver2.0 Aug.2005
[2]
3.7.4

Cleaning the toner control sensor board (TCSB)

A. Periodic cleaning cycle
• Toner control sensor board (TCSB): Every 1,000,000 prints
B. Procedure
[2]
[3] [1]
57gaf2c052na
[1] [3]
57gaf2c053na
6.
Remove the connector [1].
7.
Remove the screw [2] and then remove the drum
temperature sensor (TH5) [3].
8.
Reinstall the above parts following the removal
steps in reverse.
Note
• After installing it, be sure to check visually to
see if TH5 is securely in contact with the
drum.
• After installing it, be sure to take note of the
direction of the connector.
1.
Pull out the photo conductor section from the
main body. (See "3.7.1 Removing/reinstalling the
photo conductor section.")
2.
Remove the charge unit from the photo conductor
section. (See "3.8.1 Replacing the charge unit.")
3. Remove the sensor support stay assembly from
the photo conductor section. (See "3.7.3 Replac-
ing the drum temperature sensor (TH5).")
4.
Remove the developing unit and developing suc-
tion assembly from the photo conductor section.
(See "3.10.2 Replacing the developing unit and
the developing suction assembly.")
5.
Remove the cleaning unit from the photo conduc-
tor section. (See "3.12.1 Cleaning the cleaning/
toner recycle section.")
6.
Remove the drum from the photo conductor sec-
tion. (See "3.7.5 Replacing the drum.")
7. Clean the IDC sensor (IDCS) [2] and the PGC sen-
sor (PGCS) [3] provided on the toner control sen-
sor board (TCSB) [1] with a cleaning pad.
8.
Reinstall the above parts following the removal
steps in reverse.
3. PERIODIC CHECK
43