USING SERVICE PROGRAM MODE
B044/B045/B046 5-6 SM
2
Mode Number/Name Function/[Setting]
TD Sensor Value Display220
1Displays:
a) Current TD sensor output value (Vt)
b) Target TD output value [Vts corrected by ID sensor
output]
• The TD sensor output value changes every copy. If
a > b, toner is supplied to the development unit.
• Press ! to exit the display.
ID Sensor Display221
1 Displays Vsg, Vsp, Vsdp, Vt, and the ID sensor's PWM
output. Use these values to check the operational status
of the ID sensor.
[0 = No / 1 = Yes]
• This machine has no SC code for ID sensor errors. If
imaging problems occur (such as dirty background), use
this SP to determine whether the problem is with toner
density control.
• You can use SP7-911 to check the number of ID sensor
errors that have occurred.
• (
☛
5.1.11)
Transfer Current
1 Normal paper
Adjusts the current applied to the transfer roller when
feeding from a paper tray.
[0 = –2 µA / 1 = 0 µ
µµ
µA / 2 = +2 µA / 3 = +4 µA]
• Use a high setting if the user normally feeds relatively
thick paper (within spec).
• (
☛
6.14.2, , "Image Transfer Current Timing")
2 Thick/Thin paper Adjusts the current applied to the transfer roller when
feeding from the bypass tray.
[0 = –2 µA / –1 = 0 µ
µµ
µA / 2 = +2 µA / 3 = +4 µA]
• Use a high setting (a) if the user normally feeds
relatively thick paper, or (b) if waste toner is re-attracted
from the drum (which can occur when using
transparencies).
• (
☛
6.14.2, , "Image Transfer Current Timing")
4 Cleaning Adjusts the current applied to the transfer roller for roller
cleaning.
[–10 ~ 0 / –4 / 1 µA/step]
• Increase the current if toner remains on the roller after
cleaning. (Remaining toner may cause dirty background
on the rear side.)
• (
☛
6.14.2, "Image Transfer Current Timing")
301*
5 Manual (Temporary)
DFU
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