Panasonic UF-490 Service Manual page 129

5.1.3.2. Page Memory Test
A test pattern prints out for checking the page memory (IC120 and IC121 on the SC PCB) and the printer
mechanism using the following procedure.
Step
1 Standby
2 Press "FUNCTION" and then "7".
3 Press "MONITOR" four times, then press "*".
4 Press "3".
5 Press "3" or
use "V" or "/\ " to scroll to the desired printout.
6 Press "START".
7 After printing is completed, the unit returns to the
display in step 3.
8 Press "STOP" to return to standby.
Service Mode 3 - Page Memory Test
Operation or Unit Condition
129
LCD Display
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SET MODE (1-8)
SERVICE MODE
FUNC. PARAM LIST
PAGE MEMORY TEST
* PRINTING *
SERVICE MODE
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