Adj 9.1 Max Setup; Adj 9.4 Adjust Toner Density - Xerox workcentre 5335 series Service Manual

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ADJ 9.1 Max Setup

Purpose
Max Set Up measures performance of the automatic process control. Process Control adjusts
Bias voltage, Laser Diode output, toner concentration (TC) and BCR voltage automatically to
maintain density. It uses the ATC Sensor and Pixel count to determine the dispense time
needed to attain the target TC.
Adjustment
Max Setup consists of several separate adjustments that may be performed sequentially or
individually depending on the situation being resolved. There are inter-dependencies between
adjustments; hence, they should only be performed as directed in the documentation.
IOT Situational
The following procedure is performed to address specific customer complaints or require-
ments, or when directed following component replacement.
1.
ADJ
9.4, Adjust Toner Density. This procedure does not change any parameters; it per-
forms a one-time change to TC. It is important that the problem that caused the low or
high TC condition is resolved before performing this adjustment.
IIT Situational
The following procedures are performed to address specific customer complaints or require-
ments, or when directed following component replacement.
1.
ADJ
6.6, IIT Calibration
Initial Issue
WorkCentre 5335 Family Service Documentation

ADJ 9.4 Adjust Toner Density

Purpose
This procedure manually increases or decreases toner concentration (TC). It is used when a
xerographic problem or out-of-toner condition has prevented process control from maintaining
the TC target value.
This procedure does not change any parameters; it performs a one-time change to TC. It is
important that the problem that caused the low or high TC condition is resolved before perform-
ing this adjustment.
Check
1.
Enter the Diagnostic Mode
2.
From the Maintenance/Diagnostics screen, select Max Setup.
3.
Select Adjust Toner Density.
4.
Measure Sensor State is selected, press Start to run the test.
5.
Check, the TC Value is within +/-30 of the TC Target.
If the TC Value is not within specification go to Adjustment.
Adjustment
1.
Select Adjust Toner Density.
If TC Value is too high, the amount of toner used to create the patch is too low. Use a
positive Number in Select Quantity to increase the amount of toner in the Devel-
oper Housing.
If TC is too low, use a negative number in Select Quantity. Negative numbers will
print solid area coverage in order to tone down the developer.
Adjust in increments of 2 or 3.
2.
Press the Start button to begin Toner Density Adjustment.
3.
After the adjustment ends:
Select, Measure Sensor State, then press Start.
Check, the TC Value is within +/-30 of the TC Target.
4.
Repeat the adjustment until TC Value is within +/-30 of the TC Target.
07/2011
4-209
BUS Updated 12/2011
(Accessing UI
Diagnostics).
Repairs & Adjustments
ADJ 9.1, ADJ 9.4

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