Ricoh B051 Service Manual page 1181

Firmware History for B051/B052
Corrects the following:
•
The paper feed/transport timing for the duplex interleaf function (one sheet in duplex unit,
one fed from tray) has been improved to ensure better paper transport.
Corrects the following:
•
The detection conditions for SC412 (2nd transfer disconnection) have been changed from
60ms to 240ms to prevent misdetections that can sometimes occur in low-temperature
conditions. This is because this SC was being reported from the field in Japan in
environments below 5°C (installation requirements: 10°C minimum), i.e. unnecessary SC
occurrences.
NOTE: When the temperature is below 5
the target transfer roller current due to the high resistances of the image transfer belt and
paper transfer roller, triggering the SC more easily.
•
SP2-801-03 (Additional Value of the charge corona cleaning interval) has been newly
added. The cleaning interval for the additional charge corona unit has been adjusted as
shown.
[0 ~ 5000 / 100 / 100 counts/step]
With this new SP, it is possible to adjust the interval for charge corona cleaning in the
middle of a job:
Old:
The charge corona cleaning is carried out after 600 (SP2-801-1) development counts, at
job end or after 700 (no adjustment) development counts (stops in the middle of the job).
After
The charge corona cleaning is carried out after 600 (SP2-801-1) development counts, at
job end or after 700 (= the sum of the settings in SP2-801-1 and -3) development counts
(stops in the middle of the job).
•
SC571
Software changed so that oil end detection is not counted for supplying oil from the oil
tank to the oil reservoir in the oil supply unit while the fusing unit is not working (i.e. SCs
and jams). This is to avoid oil overflow conditions that can be caused by winter humidity
(humidification).
•
Text mode in mono color mode
Text Mode in mono color mode also uses the separation filter, which may sometimes
cause separation errors. The separation filter has been reviewed.
•
Machine may freeze when a paper jam occurs or when the main switch is turned on
•
SC120 was displayed instead of SC122 when the scanner home position was initialized.
SP2-803-01 (Charge Cleaning Off time) newly added:
[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.
CÓPIA NÃO CONTROLADA
SYMPTOM CORRECTED
°
C, the high voltage supply board does not supply
CÓPIA NÃO CONTROLADA
FIRMWARE
VERSION
1.213:01
1.233:01
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