Ricoh B051 Service Manual page 1180

Firmware History for B051/B052
Corrects the following:
•
Process control mode timing
To reduce the cycle of process control mode (every 200 printings), Mono (BK) prints are
no longer counted for process control.
•
Charge corona cleaning
Charge corona cleaning mode-entering timing has been changed from 640 to 700. After
700 development counts (stops in the middle of the job), charge corona cleaning is
carried out.
•
SC560 (Zero cross error)
If the following abnormal Hz for the power source is detected when the main switch is
turned on, SC560 is displayed (upper limits eliminated, as they are unnecessary).
Old control for SC560:
50Hz: 45>Detected Hz or 54<Detected Hz, 60Hz: 55>Detected Hz or 64<Detected Hz
New control for SC560:
50Hz: 45>Detected Hz, 60Hz: 55>Detected Hz
•
SP1-905-01 (pressure roller type):
To prevent fusing jams (wrapping around the pressure roller) the layer thickness of the
pressure roller has been changed from 1.5 mm to 2.1mm from the first production
machines. When updating from v1.192:01 or older to v1.202.01 or later for the first time,
even if the new pressure roller is installed, it is necessary to select ' new ' in SP1-905-01
to initialize fusing temperature control. The settings for the August production machines
have been input on the production line. When firmware 1.192:01 or older is updated to
1.202.01 or later for the first time, the machine cannot judge which data (old or new)
should be used for fusing control.
NOTE: When selecting 0 in SP1-905-1 and then pressing # on the LCD, the new control
data is applied to fusing control.
0: new pressure roller type (2.1 mm),
1: old pressure roller type (1.5 mm)
•
SP2-944-4 and –5 :(OPC Lubrication – High Coverage)
The default settings for SP2-944-4 and –5 have been reviewed and changed to reduce
the cycle of OPC lubrication mode.
SP2-944-4: Sheets-1: [10 to 80/ 30 / 1sheet/step]
SP2-944-5: Sheets-2: [10 to 80/ 60 / 1sheet/step]
Corrects the following:
•
Toner end and/or toner near end may be detected even when the toner cartridge still
contains enough to continue printing
Corrects the following:
•
SC546 & SC556
Detection conditions for SC546/556 have been changed so that they are triggered by a
50°C/sec jump or drop in thermistor temperature data (old: 20°C/sec). This is because
these SCs were 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 actual fusing temperature is below 5
thermistor data is unstable and nonlinear, triggering the SCs more easily.
CÓPIA NÃO CONTROLADA
SYMPTOM CORRECTED
°
CÓPIA NÃO CONTROLADA
C, the temperature curve for
FIRMWARE
VERSION
1.202:01
1.204:1
1.212.01
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