Oki Microline 3320 Maintenance Manual

6 – 3
ALARM
CATEGORY
ALARM
LED DISPLAY
ALARM 10 12 15 17 20
PROP HSD UTL NLQ
REMARKS TROUBLESHOOTING
MAIN CONTROL ALARM FIRMWARE DETECTION ALARM SERIAL INTERFACE ALARM
MPU internal RAM alarm Program ROM alarm RAM on Control Board alarm EEPROM alarm WDT (Watch Dog Timeout) alarm NMI signal alarm BRK instruction alarm MPU internal RAM alarm ROM alarm RAM on I/F board alarm I/F not mounted
Read/write error Check sum error Read/write error No reaction when MPU  reads data MPU is locked up and it  ios reset after 65ms. NMI port of MPU is kept low level. FFFF data is detected due to MPU locked up. Read/write error Check sum error Read/write error No reaction from  serial I/F board
Replace Control/ Power Supply Board Replace ROM or Con- trol/Power Supply Board Replace Control/ Power Supply Board Replace Control/ Power Supply Board Turn the power OFF and ON or replace Control/ Power Supply Board Turn the power OFF and ON or replace Control/ Power Supply Board Replace ROM or Con- trol/Power Supply Board Replace I/F Board Replace ROM on I/F board or I/F Board Replace I/F Board Replace I/F Board or Control Board.
: LED Blink (200ms ON, 200ms OFF) : LED Lights up
(3) Fatal Alarm
Table 6.3 (1/2)

Oki Microline 3320 Specifications

General

Print Technology	Impact Dot Matrix
Emulations	Epson FX, IBM ProPrinter
Resolution	240 x 216 dpi
Print Resolution	240 x 216 dpi
Print Speed	435 cps
Connectivity	Parallel, USB
Paper Handling	Continuous paper
Number of Pins	9
Paper Width	76.2 - 254 mm
Noise Level	57 dBA