Ricoh K-C3 Service Manual page 155

B245/B276/B277/B268/B269 Service Manual
TD Sensor Output Value Display
2220
Displays:
1. Vt: the current TD sensor output value and
2. Vref: the target TD output value Vts (SP 2926) + correction for
2220 1
ID sensor output.
The TD sensor output value changes every copy. If 1 > 2, toner is supplied to the
development unit.
ID Sensor Error Analysis
2221
2221 1 Vsg
2221 2 Vsp
2221 3 PWM
2221 4 Vsdp
2221 5 Vt
2221 6 Vts
Transfer Current Adjustment
2301*
Normal paper
2301 1 Adjusts the current applied to the transfer roller when feeding from a paper tray.
Use a high setting if the user normally feeds relatively thick paper (within spec)
from a paper tray (
Thick/Special paper
Adjusts the current applied to the transfer roller when feeding from the by-pass
2301 2
tray. Use a high setting (a) if the user normally feeds relatively thick paper from
the by-pass tray, or (b) if waste toner is re-attracted from the drum (which can
occur when using transparencies). (
Duplex
2301 3 Adjusts the current applied to the transfer roller when carrying out a duplex job.
Use this SP if there is poor image transfer on the rear side of duplex copies (
p.248).
Cleaning
2301 4
Adjusts the current applied to the transfer roller for roller cleaning. Increase the
Displays the Vsg value.
Displays the Vsp value.
Displays the PWM value.
Displays the Vsdp value.
Displays the Vt value.
Displays the Vts value.
[–2 = –4 mA / –1 = –2 mA / 0 = 0 mA / 1 = 2 mA /
2 = +4 mA]
p.248).
[–2 = –4 mA / –1 = –2 mA / 0 = 0 mA / 1 = 2 mA /
2 = +4 mA]
p.248)
[–2 = –4 mA / –1 = –2 mA / 0 = 0 mA / 1 = 2 mA
/ 2 = +4 mA]
[–10 ~ 0 / –1 / 1 mA/step]
18-Jan-06
146