Canon iR5000 Service Manual page 221

CHAPTER 4 IMAGE FORMATION SYSTEM
• Any of the following three may be selected for potential control executed 10 and 60 min
after the main power switch is turned on (COPIER>OPTION>BODY>PO-CNTMD):
[1] OFF (default); no potential control is executed.
[2] Reduced mode; reduces the duration by assuming the potential of the other mode after
potential control.
[3] Standard mode; executes potential control for both copying and printing in succession.
• Reduced Mode (selected in service mode)
One of the two types of potential control is selected, while assuming the control value of
the other mode.
During warm-up after power-on, the primary current, laser output, and developing bias
DC value are determined for copying and printing, and the ratio is stored in memory.
When potential is controlled again after power-on, potential control for the preceding
mode used is executed; for the other, the ratio obtained at power-on is used.
The following shows the sequence of operations for reduced mode:
Numeric constant set for control
value (for copying and printing)
Potential
control for
copying
Fixing assembly temperature
(end of fixing assembly warm-up)
Control panel power switch ON
4-8 P
Potential
Start key
control for
ON
printing
F04-201-03
COPYRIGHT © 2000 CANON INC.
10 min later to
before 60 min
Assumes the control
value of the other
from potential control
used for copying or
printing
Potential control
Start key ON
2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000
60 min and later
Assumes the control
value of the other from
potential control used for
copying or printing
Potential control