Ricoh Aficio MP171 Field Service Manual page 124

6. Troubleshooting
(*1)FGATE: Signals used between the controller and the engine in order to send the information about
the sub scan length of the page to be printed.
(*2)GPIO: A type of input/output terminal
SC No.
SC270-00
SC No.
SC277-00
SC277-10
122
Level Error Name/Error Condition/Major Cause/Solution
Write ASIC communication error
• When the Engine Board could not read the Unique ID of the Writing
ASIC properly when starting this machine.
• When an Error bit occurred in the communication between the
D
Engine Board and the Writing ASIC.
The unique ID of the write ASIC was not read normally.
• Turn the main power OFF and then ON.
• Engine Board
Level Error Name/Error Condition/Major Cause/Solution
LEDA communication error
The head type data was read three times in succession
(277-00)
• Defective ASIC
D
• Defective LEDA
(277-10)
• LEDA power source error
• Turn the main power OFF and then ON.
• Replace the LED head