2-58
Service Manual
Flatbed home position service check
Step
Questions / actions
Yes
No
1
POR the MFP. Does the CCD move and
return to the home position?
Problem solved.
Go to step 2.
2
Perform the home position sensor test. Go
to
“Scanner Tests” on page 3-25
.
Is the sensor working properly?
Go to step 3.
Go to step 5.
3
Check J28 on the controller board for proper
connection.
Is it connected properly?
Go to step 4.
Properly connect the cable.
4
Check pin 1 in J28 for voltage. The voltage
is only present when a flatbed copy job is
running. The voltage should m24V
AC. Is voltage present?
Go to step 5.
Replace the controller
board. Go to
“Controller
board removal” on
page 4-16
5
Ensure that the home position cable (J13) is
connected. Is the cable connected?
Go to step 6.
Properly connect the cable.
6
Check pin 1 in J13 for voltage. The voltage
should m5V DC. Pin 2 should be
GND. Is voltage present and is it correct?
Replace the flatbed unit.
See
“Flatbed assembly
removal” on page 4-50
.
Replace the controller
board. Go to
“Controller
board removal” on
page 4-16
.
Summary of Contents for 3333DN
Page 1: ... 02 Nov 2009 ...
Page 2: ... ...
Page 10: ...x Service Manual ...
Page 15: ...Notices and safety information xv ...
Page 16: ...xvi Service Manual ...
Page 28: ...1 8 Service Manual ...
Page 31: ...General information 1 11 Reduce Enlarge 25 to 400 Copy only ...
Page 160: ...3 56 Service Manual ...
Page 172: ...4 12 2 Remove the three screws B securing the top of the controller shield B ...
Page 182: ...4 22 6 Remove the screw D from the gear E 7 Remove the plastic bushing F ...
Page 192: ...4 32 2 Carefully pull the scanner front cover away from the tub assembly ...
Page 205: ...Repair information 4 45 5 Remove the three screws B from the left door mount B ...
Page 208: ...4 48 8 Use a screwdriver to pop the inner shaft lock B loose 9 Remove the inner shaft lock C ...
Page 211: ...Repair information 4 51 5 Remove the e clip B 6 Remove the media feed clutch with cable C ...
Page 217: ...Repair information 4 57 7 Open the front access door and remove the lower paper guide B ...
Page 219: ...Repair information 4 59 5 Remove the three screws B from the left side of the printer B ...
Page 250: ...4 90 12 Disconnect LSU HSYNC extension cable at the connector in the middle of the cable ...
Page 251: ...Repair information 4 91 13 Remove the three screws A from the left rear frame assembly A A A ...
Page 252: ...4 92 14 Remove the three screws B from the right rear frame assembly B B B ...
Page 282: ...6 2 Service Manual ...
Page 284: ...7 2 Service Manual Assembly 1 Covers 3 11 7 13 5 16 9 15 2 10 6 17 4 12 8 14 1 17 18 ...
Page 286: ...7 4 Service Manual Assembly 2 Imaging 3 11 7 13 5 16 9 15 2 10 6 4 12 8 14 1 ...
Page 288: ...7 6 Service Manual Assembly 3 Tray assemblies 3 2 1 5 4 ...
Page 296: ...7 14 Service Manual ...
Page 304: ...I 8 Service Manual ...