EPSON EPL-N3000/AcuLaser M4000N Revision C
Troubleshooting Troubleshooting When There is Error Display 99
Confidential
3.2.39 CPU Error 3.2.40 Standard RAM Error
This error relates to the standard RAM memory mounted on the board assy.
Note : The Main Board Assy and Memory Board Assy used with EPL-N3000 are as listed
below. The standard RAM is mounted on the Memory Board Assy.
For details, refer to “2.7 Operating Principles of Electric Circuitry (p.61)”.
Table 3-42. Troubleshooting for “CPU Error”
Step Action and Question Yes No
Parts below can be the source of this error (Chapter 4 Disassembly and Assembly)
• BOARD ASSY., MAIN (p.299)
1
Main Board Assy.
1. Replace the BOARD ASSY., MAIN.
♦Does the error still occur?
Go to 3.4.17
Electrical
Noise (p.127)
Problem
solved
C H E C K
P O I N T
A CPU error can occur depending on the printing data structure
sent from the host/application to the printer. Therefore, perform
operation checks in different operation environments and with
different printing data.
Table 3-43. Troubleshooting for “Standard RAM Error”
Step Action and Question Yes No
Parts below can be the source of this error (Chapter 4 Disassembly and Assembly)
• BOARD ASSY., MAIN (p.299)
• Standard ROM-DIMM
1
Checking the Standard ROM-DIMM
1. Check to see if the mounted ROM-DIMM is exactly
as specified and connected properly. (Remove once
and then install again)
♦Does the error still occur?
Go to Step 2
Problem
solved
2
Replacing the Standard ROM-DIMM
1. Replace the Standard ROM-DIMM
♦Does the error still occur?
Go to Step 3
Replace the
faulty ROM-
DIMM
3
BOARD ASSY., MAIN
1. Replace the BOARD ASSY., MAIN.
♦Does the error still occur?
Go to 3.4.17
Electrical
Noise (p.127)
Problem
solved
Parts Name Spec
BOARD ASSY., MAIN C553MAIN
BOARD ASSY, MEMORY C533PROG
To Next Page
Loading...
