Action
Yes
No
Step 17
a
Make sure that the main drive is properly installed and free of
damage.
b
Make sure that the main drive gears are properly installed.
c
Make sure that the drive gears are in proper contact with the
gear they are driving.
Does the problem remain?
Go to step 18.
The problem is
solved.
Step 18
Replace the main drive. See
“Main drive removal” on page 234
Does the problem remain?
Go to step 19.
The problem is
solved.
Step 19
a
Reseat all the cables on the controller board.
b
Check if the controller board LED lights up.
c
Check the controller board for proper installation and damage.
Is the controller board properly installed and free of damage?
Contact the next
level of support.
Go to step 20.
Step 20
Replace the controller board. See
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
126 errors
126 error messages
Error code
Description
Action
126.05
The LVPS dropped while not sleeping.
See
“LVPS service check” on page 148
126.06
An LVPS 25 V line error was detected.
126.07
An LVPS 5 V rail was down during POR.
126.12
LVPS mismatch. A 120 V power supply is installed
but the controller board reports a 220 V power
supply.
See
“LVPS service check” on page 148
Note:
Skip directly to step 3.
126.13
LVPS mismatch. A 230 V power supply is
installed but the controller board reports a 110 V
or 100 V power supply.
3400-48x
Diagnostics and troubleshooting
147
Summary of Contents for MB2236
Page 16: ...3400 48x 16 ...
Page 18: ...3400 48x 18 ...
Page 203: ...Scan SE Scanner Info 3400 48x Service menus 203 ...
Page 204: ...3400 48x 204 ...
Page 229: ...6 Disconnect all cables 7 Remove the controller board 3400 48x Parts removal 229 ...
Page 239: ...7 Disconnect the cable and then detach the ADF link 3400 48x Parts removal 239 ...
Page 240: ...8 Remove the control panel 3400 48x Parts removal 240 ...
Page 241: ...Front door removal 1 Detach the door strap 2 Remove the front door 3400 48x Parts removal 241 ...
Page 246: ...3400 48x Parts removal 246 ...
Page 250: ...11 Remove the top cover 3400 48x Parts removal 250 ...
Page 258: ...4 Remove the two pick rollers 3400 48x Parts removal 258 ...
Page 262: ...6 Detach the scanner stand and then remove the fax card cover 3400 48x Parts removal 262 ...
Page 265: ...11 Remove the ADF scanner from the flatbed scanner 3400 48x Parts removal 265 ...
Page 266: ...3400 48x 266 ...
Page 274: ...3400 48x 274 ...
Page 277: ... Scanner glass Scanner glass pad 3 Close the scanner cover 3400 48x Maintenance 277 ...
Page 279: ...Assembly 1 Covers 3400 48x Parts catalog 279 ...
Page 281: ...Assembly 2 Paper path 3400 48x Parts catalog 281 ...
Page 283: ...Assembly 3 Drive 3400 48x Parts catalog 283 ...
Page 285: ...Assembly 4 Sensors 3400 48x Parts catalog 285 ...
Page 287: ...Assembly 5 Electronics 3400 48x Parts catalog 287 ...
Page 289: ...Assembly 6 Scanner 3400 48x Parts catalog 289 ...
Page 294: ...3400 48x 294 ...
Page 312: ...3400 48x Index 312 ...
Page 314: ...3400 48x Part number index 314 ...
Page 316: ...3400 48x Part name index 316 ...