Technical Bulletin PAGE: 3/11
Reissued: 17-Jun-03
Model: Model U-P1 Date: 3-Feb-03 No.: RG071003b
Main Unit Controller
Symptom Corrected Version
To ensure proper printing quality, the default values for the
following SP modes have been reviewed and some SP modes
newly added.
-SP3-920-001 (Lubrication Cleaning Time) ( ): old default
[0 ~ 100 / 50 (100) / 1% /step]
-SP2-941-001(OPC Lubricant Time – job end )
[0 ~ 30 / 14 (20) / 1s /step]
-SP3-921-001 (Lubricant Clutch OFF: 1C): Newly added
-SP3-921-002 (Lubricant Clutch OFF: 2C/3C/4C): Newly added
[0 ~ 11 / 6 / 1s /step]
Allows the image transfer belt cleaning clutch off timing
adjusted.
The setting determines the number of seconds after
image transfer belt cleaning roller
charging that the clutch is
turned off. With previous versions, the clutch is
while the development roller motor rotates.
-SP2-938-001 (OPC Reverse Interval): Newly added
[0 ~ 100 / 10 / 10 counts /step]
The main motor rotates the OPC belt backwards for 500 ms at the
end of every job, in order to remove foreign particles between the
OPC belt and OPC cleaning blade. However, this does not need to
b
e performed so often. In addition, reducing the frequency of
OPC belt reverse rotation improves the cleaning blade
performance.
This SP adjusts the counter for the OPC belt reverse rotation, and
is incremented as follows:
LT/A4 LEF or smaller: 1, larger than LT/A4 LEF: 2.
When this SP reaches its set maximum
performed for 500ms at job end.
NOTE : Along with this main unit controller version, be sure to update
the BICU firmware to v1.42 or later. For fetails, please refer to RTB
#RG071007 (black faint images).
V2.27
Changes made in preparation for the addition of SP3-921-01/02 (from the next
version).
Note: These SP modes are not yet operational.
New SP mode added: SP2-803-01 (Charge Cleaning Off time).
[0 ~ 200 / 60 / 10 seconds/step]
Although a 60-second interval already exists for performing an idle discharge after
corona wire cleaning, this new SP mode allows the interval to be adjusted. The idle
discharge is to maintain an even charge wire surface, ensuring proper charging.
V2.26
The new Wireless LAN card (produced from Dec ’02) is sometimes unable to
communicate with the PC after a certain interval when using 802.11adhoc mode.
Note: This does not occur with 1) adhoc or infrastructurer modes, or 2) previous
Wireless LAN cards (produced up until Nov ’02).
V2.25
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