Hitachi HT-4139-28 Maintenance Manual page 99

REV0 10.02.15
■ Replacing the Prism Replacing the Prism（ （ （ （ PC41 Replacing the Prism Replacing the Prism
① Remove the Main Cover (L)(R). For instructions, please refer to "8.1 Preparation"
② Unscrew 4 bind-head screws attached to the Eject Guide ASSY, and remove the Eject Guide ASSY. For
instructions, please refer to "8.3.5 Replacing the Scanner ASSY"
③ Unscrew 2 washer faced head screws
④ Unscrew 1 hexagonal washer faced head screw attached on the Prism (PC41 Sensor)
⑤ Replace it with a new Prism (PC41 Sensor)
⑥ Take the reverse steps to attach the Prism
⑦ After replacing the part, run Auto Calibration Test
Pinch Roller ASSY
Washer faced
Heads screw
hexagonal washer
■ Replacing the Sensor (PC51 Emission)
① Remove the R Stacker. For instructions, please refer to "8.3.8 Replacing the Stacker"
② Unscrew 1 hexagonal washer faced head screw attached to the Sensor (PC51), and disconnect the connector
from the Sensor (PC51 Sensor) and remove the Sensor (PC51 Sensor)
③ Replace it with a new Sensor (PC51 Sensor)
④ Take the reverse steps to attach the Sensor. Place the Sensor Cable as shown below.
⑤ After replacing the part, run Auto Calibration Test
CAUTION CAUTION CAUTION CAUTION
Make sure to route the Sensor Cable in-between the space on the Sensor as shown below.
Hexagonal washer
#55
-H8-36-
PC41） ） ） ） PC41 PC41
#57 Prism (PC41）
Here is passed.
Sensor (PC51 Emission)
Tools Needed: Magnetic Philips Screwdriver (No.2)
Eject Guide ASSY
Tools Needed: Magnetic Philips Screwdriver (No.2)
Here is passed.