Olivetti d-Color MF 4003, Руководство по обслуживанию

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d-Color MF4003/MF3303
L TROUBLESHOOTING > 16. IMAGE QUALITY PROBLEM
L-124
Vdc-C
Vdc-M
Vdc-Y
Vdc-K • Shows the developing bias value of each color of toner during print image formation.
• Standard values: around -800 to 0
• The specific numeric values vary with different imaging units. (The values incorporate corrections to
match the proper density after image stabilization.)
* As a guide, the image density tends to be higher with large numeric values and lower with small
numeric values.
• Relevant components: Imaging unit, high voltage unit (HVPS)
Vg-C
Vg-M
Vg-Y
Vg-K • Shows the grid voltage value of each color of toner during print image formation.
• Standard values: around -1600 to 0
• The specific numeric values vary with different imaging units. (The values incorporate corrections to
match the proper density after image stabilization.)
* As a guide, the image density tends to be higher with large numeric values and lower with small
numeric values.
• Relevant components: Imaging unit, high voltage unit (HVPS)
LD Light Value (C, M, Y, K) • Shows the LD light value of each color of toner during print image formation.
• Standard values: around 1750 to 3500
* For your information, photoconductor durability tends to be aggravated and fine line width tends to
be broader at higher values and characters tend to be faint at lower values.
• Relevant components: PH unit, imaging unit
Charging DC current valve • Shows the DC current value applied to the charging roller of each color of toner during print image
formation.
• Standard values: around 0 to 150
• Relevant components: Imaging unit, high voltage unit (HVPS)
Charging AC Output Value 1
Vpp-C1
Vpp-M1
Vpp-Y1
Vpp-K1 • Shows the AC voltage value applied to the charging roller of each color of toner during print image
formation.
• Standard values: 0 (fixed)
• Relevant components: Imaging unit, high voltage unit (HVPS)
Charging AC Output Value 2
Vpp-C2
Vpp-M2
Vpp-Y2
Vpp-K2 • Shows the current value applied to the charging roller of each color of toner during print image
formation.
• Standard values: 0 (fixed)
• Relevant components: Imaging unit, high voltage unit (HVPS)
Service Manual Y119930-3