
ECB TEST PATTERN
G031/G032 4-24 SM
4.7 ECB TEST PATTERN
When the TB1 pins on the ECB board are shorted, the lattice test pattern is printed
out from the ECB board. This test pattern does not use the printer control board.
This test helps to find whether the problem is caused by the ECB or the printer
control board.
The location of TB1 is as shown below.
Procedure
1. Turn the printer on.
2. Short the TB1 pins.
3. The test pattern is automatically printed out.
Engine ROM
EEPROM
TB1
ECB
G031M527.WMF
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