Overview; Test Print By Mcu Pwb - Epson ColorPage EPL-C8000 Service Manual

EPSON EPL-C8000

4.1 OVERVIEW

You can perform a test print by using off-line diagnostics to check the
printer operation.


Test print using the jumper setting on MCU PWB:


Test print using the diag board DIP switch setting: Section 4.2.1.3

4.1.1 Test print by MCU PWB

Test printing procedures using the MCU PWB is as shown below.
1. Remove the RIGHT COVER ASSEMBLY. (See Chapter 3.)
2. Remove the CONTROLLER PWB. (See Chapter 3.)
3. Remove the MCU PWB ACCESS COVER of the CONT. CHASSIS
ASSEMBLY. (See Chapter 3.)
4. Connect the two pins on the test print connector (JP3) on the MCU
PWB. Use a short connector to connect the pins. If the MCU PWU
has DIP switches, turn on the switches.
NOTE:Do not touch the live components or driving units when doing
the following steps.
5. Set the paper in the cassette. Turn on the power.
6. After the printer enters the READY mode, start the test print. (The
printer outputs test patterns continuously.)
7. To stop printing, disconnect the short connector that connects the
two pins. If the MCU PWB has a DIP switch, turn it off.
Chapter 4 DIAGNOSTICS
NOTE: When disconnecting the short connector or turning the DIP
switch off, do not touch any other components.
NOTE: The paper feeder is selected with the previous panel setting.
NOTE: The paper size is selected with the previous panel setting when
Section 4.1.2 MSI tray is selected.
NOTE: If the printer is in an error state, it will not print.
P-ROM
Figure 4-1. Test Print Procedure
Rev. B
4-1