RICOH GROUP COMPANIES
CONTROL NO. 293
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SUBJECT: IMPROVED TONER
GENERAL:
This bulletin explains about the new Type “J” toner for A172 and A199 copiers. Also provided are the
necessary actions to be taken when the old type toner is switched to the new type toner.
NOTE:
1.
Purpose of the new toner
The chargeability has been stabilized to minimize toner scattering inside the machine and to maintain image
density (reduce density fluctuation).
2.
Necessary action when replacing the developer
For units which have the Vcnt Correction by number of scans switched “On” to compensate for decrease in
chargeability (See AFICIO COLOR 5106/5206 – 018 issued 12/22/97 or Savin FEB SDC206/206E-006
issued 10/22/97), the image density may become lower with the new toner since chargeability will be
stabilized.
Depending on the type of toner in the toner tank, and the setting of the Vcnt Correction by number of scans,
one of the following actions will be required when replacing the developer. The Vcnt Correction by number of
scans can be switched “Off” by SP Adjustment P.16 Other Adjustment No.1. The default setting is “Off”
(data in SP Mode : 00000).
a)
When installing a new machine using new toner, do not switch “On” the Vcnt Correction by number of
scans.
b)
When all the toner in the toner tank unit is new type, check the Vcnt Correction by number of scans and
switch “Off” if it is “On”.
c)
When all the toner in the toner tank unit is old type, do not change the setting of Vcnt Correction by
number of scans.
d)
When the toner in the toner tank unit is some new type mixed with some old type, do not change the
setting of Vcnt Correction by number of scans.
e)
When type of toner in the toner tank unit is unknown, do not change the setting of Vcnt Correction by
number of scans.
Continued…
Note:
This copy is intended as a master original
for reproduction of additional bulletins.
„
COPY QUALITY
More detailed information regarding the availability of this product
will be announced in the near future.
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