Maintenance
Description
item No.
2BT
1-4-36
U910
Clearing the black ratio data
Description
Clears the accumulated black ratio data for A4/11"
×
8
1
/
2
" sheets.
Purpose
To clear data as required at times such as during maintenance service.
Method
1. Press the start key.
2. Select “on” using the zoom +/– keys.
Display
Operation
– – –
Canceling the clearing
on
Executing the clearing
3. Press the start key. The accumulated black ratio data is cleared.
Completion
To exit this maintenance item without clearing the data, press the stop/reset key. The indication for selecting a
maintenance item No. appears.
U917
Setting the reading/writing of backup data
Description
Selects whether to read out the backup data on the main PCB to the NVRAM on the memory tool PCB or to
write backup data on the NVRAM on the memory tool PCB to the main PCB.
When the memory is initialized (maintenance items U020, U021, U022 and U252), this is set to read out the
backup data from the main PCB to the NVRAM on the memory tool PCB. To write the backup data to the main
PCB from the NVRAM on the memory tool PCB, change the setting before starting writing.
Purpose
Used when replacing the main PCB.
Method
1. Press the start key.
2. Select “rd” or “rE” using the zoom +/– keys.
Display
Description
rd
Reading out the backup data
rE
Writing the backup data
3. Press the start key.
Completion
To exit this maintenance item without changing the current setting, press the stop/reset key. The indication for
selecting a maintenance item No. appears.
