Oki Data CONFIDENTIAL
43827101TH Rev.2
219 /
7.5.2.(15)
Toner cartridge is not recognized(Error 540,541,542,543)
(15-1)Errors caused by consumables
ID units and toner cartridges
Confirmation Tasks
Are the ID units installed in the right positions? Check to see if
the lock levers of the toner cartridges are locked.
Action at NG
Redo the installation
properly.
(15-1-1) Installed state of consumables
Confirmation Items
Note!
How to check a toner sensor operation with SWITCH SCAN in the self-diagnosis mode.
(
1) Confirmation of the operation in the device
1) Change to a display that a changing situation of the toner sensor is confirmed from the
operation panel in the self-diagnosis mode.
Refer to Section 5.4.2.3 Switch Scan Test as for how to display the operation panel.
2) When taking out an ID unit and toner cartridge (TC) from the device, there is a window on
the observers’ right from the device, in a position across to the side of the TC.
In that window, a toner sensor is located.
3) Hold up a piece of white paper against a sensor in a place within 3mm from a sensor
window.
4) The operation panel displays “L” if a piece of paper has light reflection and it displays “H” if
not.
5) By holding up a piece of paper, if the operation panel changes “H”to “L” or “L” to “H”, the
device operates normally.
Response in NG:
•
Clean a toner of the sensor surface and clear paper dust.
•
Confirm a connection state of FFC cable between the toner sensor PCB and PU PCB.
•
Check an operation again and exchange PU PCB or a toner sensor PCB if there is no
change.
(2) Confirmation of the operation in Toner Cartridge (TC)
1) Install a TC and ID unit in a position where normal operation of the device has confirmed in
Confirmation (1) and check operation in the operation panel.
2) The display of the operation panel changes “H” to “L” or “L” to “H” in conjunction with an
action of TC white light reflector when operation of TC is normal.
Response in NG:
•
Confirm an operation state of each ID motor by MOTOR&CLUTCH TEST in the self-diagnosis
mode.
•
Clean the surface of the white light reflector at the side of TC. (Dirty from a toner or paper
dust.)
•
Exchange a TC of a different color and ID unit by the set..
Exchange a TC or ID unit if the set of the different color is OK.
(15-2)Errors caused by toner sensor
Toner sensor
Toner sensor
Confirmation Tasks
Is the toner sensor lens stained with toner?
Use the SWITCH SCAN function of the diagnostic mode to
check to see if the sensor is normal. Hold a white paper in front
of the sensor, and see if the SCAN state varies.
Action at NG
Wipe off the stain
Replace the toner
sensor PCB, PU PCB
or the FFC between the
toner sensor PCB and
PU PCB.
(15-2-1) State of toner sensor
Confirmation Items