Oki C5200 User Manual

Oki Data CONFIDENTIAL
42615101TH Rev.8 224 /
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 board (PRT)
and PU main board (PRN).
• Check an operation again and exchange PU main board (PRN) or a toner sensor
board (PRT) 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
Confirm that a detection part of the toner sensor is clean.
Confirm whether a sensor operates correctly with SWTCH
SCAN of the Self-diagnostic Mode. Confirm whether SCAN
condition varies by holding a white paper against a sensor.
Action at NG
Clean the sensor.
Exchange a toner
sensor board
(PRT PCB), PU board
(PRN PCB) or FFC
between PRT-PRN.
(15-2-1)Toner sensor condition
Confirmation Items

Oki C5200 Specifications

General

Brand	Oki
Model	C5200
Category	All in One Printer
Language	English