Mechanical Controller Test Printing Function - Epson EPL-N3000 Service Manual

EPSON EPL-N3000/AcuLaser M4000N

3.1.6 Mechanical Controller Test Printing Function

With this printer, you can carry out printing operation check of the engine alone by
control of the Mechanical Controller as follows:
3.1.6.1 How to Execute Test Printing
Short-circuit the jumper wire (JP93 JP TEST) on the HVPS/MCU Board to the frame,
and the test pattern as shown in Figure 3-2
terminate printing.
Figure 3-1. How to Execute Test Printing
Troubleshooting
will be printed. Quit short-circuitting to
Frame
Connect
3.1.6.2 Test Print Pattern
Figure 3-2 below shows the pattern output by print test of the engine alone.
About 4 mm
Figure 3-2. Test Print Pattern
Resolution
600 dpi
Note 1: The d2 value in table above represents the case of A4 LEF printing.
There is no problem even if the lines in the paper feed direction is
C H E C K
printed jaggy. Jaggy line printing occurs because jitter control is
P O I N T
not performed.
Overview
About 4 mm
d1 (dots) d2 (dots) d3 (dots)
6 3413 127
Revision C
67
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