Xerox DocuPrint C55 Service Manual page 151

4. Determine and record the Print Counts.
a. Press Media Server [2]; then press
Menu [3] until PCU DIAG MODE is
displayed
b. Enter Special Diagnostics (PCU DIAG
MODE displayed, press On Line [0],
then press Enter [7], release both at
same time).
c. Use Menu [3] to scroll to COUNTER
SET2 TTL.
d. Press Enter [7] and record the TTL
Count.
e. Press Media Server [2] to return to
COUNTER SET2.
f. Press Previous [5] to select the next
page count to be checked.
g. Press Enter [7] and record the page
count.
h. Repeat steps e through g until the five
page counts have been recorded. The
last eight are not critical.
COUNTER SET2 (Print Counts)
TTL Total Pages
YPR Yellow Print Images
MPR Magenta Print Images
CPR Cyan Print Images
KPR Black Print Images
JAM Jam Counter
OPC Scan Error Counter
MAM Main Motor Error Counter
PLM Polygon Motor Error Counter
HLH Over Temp Fusing Error Counter
HLL Under Temp Fusing Error Counter
THO Thermistor Error Counter
DVM Developer Motor Error Counter
DocuPrint C55/C55mp/[NC60]
5. Determine and record
Concentration Setpoints now in NVM.
a. Press Media Server [2]; then press
Menu [3] until TONER LEVEL YTON is
displayed.
b. Press Enter [7] and record the Y Toner
Concentration Setpoint.
c. Press Media Server [2] to return to
TONER LEVEL.
d. Press Previous [5] to select the next
Toner Concentration Setpoint to be
checked.
e. Press Enter [7] and record the Toner
Concentration setpoint.
f. Repeat steps c through e until all four
toner concentration setpoints have been
recorded.
TONER LEVEL (Toner Concentration)
YTON Y Toner concentration (default 70)
MTON M Toner concentration (default 70)
CTON C Toner concentration (default 70)
KTON K Toner concentration (default 70)
NOTE: These readings should normally be
between 70 and 140. If they are all 70 or out of
the 70 to 140 range, they have probably been
corrupted. If this is the case, use the toner
concentration values from the diagnostic sheet.
If a diagnostic sheet is not available and the
values are corrupt, both the Black and Color
CRU' s should be replaced after the PCU is
initialized.
2/99
4-63
6. Compare the values on the Diagnostic sheet
the Toner
with the values stored in NVM. Determine
which values to re-enter after the NVM is
initialized. As you determine what values are
to be used circle them, so you can re-enter
them later.
a. Determining
value to use.
• If the consumable has not been
changed since the last call, use the
larger of the consumable numbers.
• If the consumable has been changed
since the last call, use the smaller of
the consumable numbers.
b. Determining the Page count value to use:
• Use the large of the page count
numbers.
c. Determining the Toner Concentration
setpoints to use.
• If the values in NVM agree with the
values on the diagnostic sheet, enter
these as the setpoints.
• If the values in NVM do not agree with
the values on the diagnostic sheet,
and the developer CRU has not been
changed, the NVM is corrupt, use the
setpoints on the diagnostic sheet.
• If the values in NVM do not agree with
the values on the diagnostic sheet,
and the developer CRU has been
changed, use the NVM values as the
setpoints.
NOTE: The Toner concentration setpoints are
critical for good copy quality.
determine the amount of toner in the developer
housings.
the consumable usage
These numbers
REPAIRS/ADJUSTMENTS
ADJ 3.3