Ricoh FW780 Service Manual - Page 52
Toner Density Control, During the initial conditioning, the main motor rotates the development unit
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4.4 TONER DENSITY CONTROL The toner supply amount ratio is determined by the following conditions. TS 0 ~ 50 sheets Level (~ 30 m) 0 VTS < 4.25 1 4.25 ≤ VTS < 4.30 N2 3 4.30 ≤ VTS < 4.35 4.35 ≤ VTS < 4.40 4 4.40 ≤ VTS < 4.45 5 4.45 ≤ VTS 0 VTS < 4.35 1 4.35 ≤ VTS < 4.38 L 2 4.38 ≤ VTS < 4.40 3 4.40 ≤ VTS < 4.42 4 4.42 ≤ VTS < 4.45 5 4.45 ≤ VTS 0 VTS < 4.00 1 4.00 ≤ VTS < 4.10 H2 4.10 ≤ VTS < 4.20 3 4.20 ≤ VTS < 4.30 4 4.30 ≤ VTS < 4.40 5 4.40 ≤ VTS 51 ~ 100 sheets (30 ~ 60 m) VTS < 4.00 4.00 ≤ VTS < 4.10 4.10 ≤ VTS < 4.20 4.20 ≤ VTS < 4.30 4.30 ≤ VTS < 4.40 4.40 ≤ VTS VTS < 4.30 4.30 ≤ VTS < 4.33 4.33 ≤ VTS < 4.36 4.36 ≤ VTS < 4.40 4.40 ≤ VTS < 4.43 4.43 ≤ VTS VTS < 3.50 3.50 ≤ VTS < 3.80 3.80 ≤ VTS < 4.10 4.10 ≤ VTS < 4.20 4.20 ≤ VTS < 4.35 4.35 ≤ VTS 101 ~ 150 sheets (60 ~ 90 m) VTS < 3.50 3.50 ≤ VTS < 3.80 3.80 ≤ VTS < 4.10 4.10 ≤ VTS < 4.20 4.20 ≤ VTS < 4.35 4.35 ≤ VTS VTS < 4.25 4.25 ≤ VTS < 4.30 4.30 ≤ VTS < 4.33 4.33 ≤ VTS < 4.36 4.36 ≤ VTS < 4.40 4.40 ≤ VTS VTS < 3.00 3.00 ≤ VTS < 3.50 3.50 ≤ VTS < 4.00 4.00 ≤ VTS < 4.20 4.20 ≤ VTS < 4.30 4.30 ≤ VTS 151 ~ 200 sheets (90 ~ 120 m) VTS < 3.00 3.00 ≤ VTS < 3.50 3.50 ≤ VTS < 4.00 4.00 ≤ VTS < 4.20 4.20 ≤ VTS < 4.30 4.30 ≤ VTS VTS < 3.75 3.75 ≤ VTS < 4.00 4.00 ≤ VTS < 4.10 4.10 ≤ VTS < 4.20 4.20 ≤ VTS < 4.38 4.38 ≤ VTS VTS < 2.50 2.50 ≤ VTS < 3.00 3.00 ≤ VTS < 3.50 3.50≤ VTS < 4.00 4.00 ≤ VTS < 4.25 4.25 ≤ VTS 201 ~ 250 sheets (120 ~ 150 m) VTS < 2.50 2.50 ≤ VTS < 3.00 3.00 ≤ VTS < 3.50 3.50 ≤ VTS < 4.00 4.00 ≤ VTS < 4.25 4.25 ≤ VTS VTS < 3.25 3.25 ≤ VTS < 3.50 3.50 ≤ VTS < 3.80 3.80 ≤ VTS < 4.00 4.00 ≤ VTS < 4.35 4.35 ≤ VTS VTS < 2.00 2.00≤ VTS < 2.40 2.40 ≤ VTS < 2.80 2.80 ≤ VTS < 3.20 3.20 ≤ VTS < 3.60 3.60 ≤ VTS 251 sheets ~ (150 m ~) VTS < 2.0 2.00 ≤ VTS < 2.40 2.40≤ VTS < 2.80 2.80 ≤ VTS < 3.20 3.20 ≤ VTS < 3.60 3.60 ≤ VTS VTS < 2.75 2.75 ≤ VTS