Toner density error service check
Action
Yes
No
Step 1
Reseat the toner density sensor cable. See
Does the problem remain?
Go to step 2.
The problem is
solved.
Step 2
a
Remove the toner cartridge and imaging unit.
b
Clean and check both units for toner leaks.
Are the toner cartridge and imaging unit free of leaks?
Go to step 3.
Replace the affected
toner cartridge and
imaging unit, and
then go to step 3.
Step 3
a
Remove the transfer roller to access the area underneath it. See
“Transfer roller removal” on page 206
b
Clear the area of dust and toner contamination.
c
Remove tray 1, and then manually actuate the toner density
sensor wiper by moving the pick roller up and down.
Does the problem remain?
Go to step 4.
The problem is
solved.
Step 4
a
Remove the sensor (toner density). See
b
Check the sensor and its wiper bracket for damage.
Are the sensor and its wiper bracket free of damage?
Go to step 5.
Go to step 6.
Step 5
a
Clean, and then reinstall the sensor and its wiper bracket. Add
lubrication to the wiper bracket if necessary. See
(toner density) removal” on page 222
.
b
Check the pick roller cam for damage.
Note:
The rotation of the pick roller cam triggers the
movement of the wiper bracket.
Is the pick roller cam free of damage?
Go to step 6.
Go to step 7.
Step 6
Replace the sensor (toner density). See
Does the problem remain?
Go to step 7.
The problem is
solved.
Step 7
Replace the pick roller cam. See
“Pick roller assembly removal”
Does the problem remain?
Contact the next
level of support.
The problem is
solved.
4600-830, -835, -895
Diagnostics and troubleshooting
117
Summary of Contents for M124x
Page 20: ...4600 830 835 895 20 ...
Page 152: ...4600 830 835 895 152 ...
Page 208: ...4 Remove the four screws A A A 4600 830 835 895 Parts removal 208 ...
Page 225: ...4 Disconnect the cable from the sensor A A 4600 830 835 895 Parts removal 225 ...
Page 229: ...B A C D E E 4600 830 835 895 Parts removal 229 ...
Page 244: ...4600 830 835 895 244 ...
Page 259: ...Assembly 1 Covers 9 8 7 6 4 3 2 1 5 4600 830 835 895 Parts catalog 259 ...
Page 261: ...Assembly 2 Control panel 2 1 1 2 3 3 4 4 4600 830 835 895 Parts catalog 261 ...
Page 263: ...Assembly 3 Electronics 1 4600 830 835 895 Parts catalog 263 ...
Page 265: ...Assembly 4 Electronics 2 2 5 1 3 4 4600 830 835 895 Parts catalog 265 ...
Page 267: ...Assembly 5 Electronics 3 4 3 6 7 2 5 1 4600 830 835 895 Parts catalog 267 ...
Page 269: ...Assembly 6 Electronics 4 2 1 4 3 6 5 4600 830 835 895 Parts catalog 269 ...
Page 271: ...Assembly 7 Paper transport 1 1 2 3 4 5 6 4600 830 835 895 Parts catalog 271 ...
Page 273: ...Assembly 8 Paper transport 2 5 1 4 4 3 2 4600 830 835 895 Parts catalog 273 ...
Page 275: ...Assembly 9 MPF and standard tray 1 3 2 4600 830 835 895 Parts catalog 275 ...
Page 277: ...Assembly 10 Optional trays 2 4 3 1 4600 830 835 895 Parts catalog 277 ...
Page 280: ...4600 830 835 895 Parts catalog 280 ...
Page 282: ...4600 830 835 895 282 ...
Page 302: ...4600 830 835 895 302 ...
Page 312: ...4600 830 835 895 Part number index 312 ...