Canon LBP-2000 Service Manual page 58

• At power-on
Main switch
Print start
command(/PRNT)
Main motor(M101)
Scanner ready
signal(/SCNRDY)
Primary AC bias
Primary DC bias
Developing AC bias
Developing DC bias
Transfer bias
• During printing (A4, 2 pages, continuous)
STBY
Print start
command(/PRNT)
Main motor(M101)
Scanner ready
signal(/SCNRDY)
Primary AC bias
Primary DC bias
Developing AC bias
Developing DC bias
Transfer bias
ON 140˚C
WAIT
WMUP WMUPR
1.0 (approx.)
0.46 (approx.)
Figure 2-2-8
INTR
4.7 (approx.)
0.07 (approx.)
0.46
0.76
Sheet-to-sheet bias
Figure 2-2-9
0.56 (approx.)
1.3
1.0
1.6
Negative bias
PRINT PRINT
0.17 (approx.)
CHAPTER 2
(unit: sec)
STBY
(unit: sec)
LSTR STBY
0.1
2.0 (approx.)
Negative bias
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