Toner Replenishing Control - Konica Minolta bizhub 169 Service Manual

13. Toner replenishing

13.4 Toner Replenishing Control

• Replenishing of the supply of toner is determined based on the T/C ratio and B/W ratio.
• If T/C is 14 % or more, toner replenishing is not carried out regardless of the B/W value.
• If T/C is less than 14 %, toner replenishing is determined according to the B/W value.
• Toner is replenished until T/C becomes 14 %.
T/C ratio (%)
More than 14
13.5 to 14
13 to 13.5
12.5 to 13
12 to 12.5
10 to 12
Less than 7
• The greater the value of B/W in the table, the higher the B/W ratio (high image density
original).
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Theory of Operation Ver. 1.0 Apr. 2007
B/W ratio
—
More than 2000
More than 1000
More than 500
More than 500
More than 0
Proceeds to the T/C recovery mode
toner replenishing
not supplied
supplied
supplied
supplied
supplied
supplied