Ricoh A230, Service Manual, Page: 632 / 1134

SCANNER FUNCTIONS
A230/A231/A232 21-4 SM
2.3 SCANNER FUNCTIONS
2.3.1 SELF DIAGNOSTICS
Whenever the main power switch is turned on, the Scanner Board will
automatically perform a self diagnostics and the following items will be checked.
•
SRAM read/write check
•
Initializes the SBC chips
•
Initializes the SCSI Controller
•
A connection check between the Scanner Board and main machine
If an error is detected, an appropriate error message or condition will be generated
(refer to the section 4:Troubleshooting).
2.3.2 ENTERING THE SCANNER MODE
There is no scanner function key on the operation panel. Instead, the machine will
enter the scanner mode whenever the machine receives the scanner command
from a PC. However, the machine cannot enter the scanner mode during any of the
following conditions.
•
When the scanner or ADF is in use (copying, scanning for facsimile transmission,
etc)
•
When in the Interrupt copy mode
•
When in either the User Tools (UT) Mode or the Service Program (SP) Mode
•
With either an ADF jam or the ADF cover is open
•
The machine is in Auto Off mode or Night mode
2.3.3 EXITING THE SCANNER MODE
The machine will automatically exit the scanner mode when the system reset timer
has run out or when a function key (Copy or Fax or Printer) is pressed.
2.3.4 SCSI ID
The SCSI ID can be selected using UP mode (1. System – 21. Scanner SCSI ID).
The factory default SCSI ID is number 4. It is not necessary to select a new ID
number, unless another connected SCSI device was assigned the number 4.
The SCSI terminator is located on the Scanner Controller board and it is always
activated. So, when installing the machine in the computer’s SCSI chain, this
machine must be at the end of the SCSI chain.