Product specifications

11 – 15
5) Operator panel display
While in the Self Test mode ...
(a) MENU mode LED = off
(b) SEL LED = off
(c) CPI LEDs = change when CPI changes
(d) Print Quality LEDs = change when Print Quality changes
6) Communication interface
Printer is in the deselect state.
Data cannot be received during self test mode.
11.5.3 Rolling ASCII Self-test
1) Start
Depress and hold the QUIET/TOF switch, while moving the power switch to the “on”
position.
2) Stop
Stop the test by depressing the SEL switch.
3) Print header
a. Header:
aaaaa bbb E F/W ee.ff YR gggg-hhhh-ii
CG jj. kk
... as defined by ...
Position & Char. Count Description Data Printed Comments
aaaaa Model name ML3320 Narrow chassis
ML3321 Wide chassis
bbb Compatibility MIE ML/EPSON/IBM compatible
ee.ff Revision # 00.00-99.99 Firmware revision
gggg ROM Type 4110
hhhh Part Number 3049
ii Part Number 01-99 ROM-FD Number
jj.kk Revision # 00.00-99.99 CG revision
4) Test pattern
(a) Printing features/modes = Current Menu value.
(b) Pattern will be continuous printed of all ASCII characters. (20H to 7EH)