Digital Output Test - Epson ColorPage EPL-C8000 Service Manual

EPSON EPL-C8000

4.2.6.6 Digital Output Test

Components controlled by the digital signals can be turned ON/OFF.
Table 4-21. Digital Output Test Parameter
DIAGON command: 75
DIAGSTART command (Digital Output Test): 90 02 XX
DIAGSTOP command (Digital Output Test): 91 02 XX
Parameter Function
1 Diagnostic type
2 Code_D0
3 DGST
With status (90 02 XX XX)
Example) Command
90 02
21
MSI_CL
Digital Output Test
DIAGSTART command

Do not touch live parts when high voltages are output.

Install all covers when the laser beam is active and
exposed.

Do not touch motors and drive assemblies when they
are running.
NOTE: Do not turn on the BCR, Erase Lamp Assembly and the LD in
the ROS Assembly with the Process Motor Assembly turned
OFF to prevent fatigue in the Drum Cartridge.
NOTE: After having replaced the Drum Cartridge with a new one, do not
turn on the Process Motor Assembly ON to prevent the Cleaning
Blade from rotating in reverse.
Chapter 4 DIAGNOSTICS
DIAGOFF command: 76
Data
02: Digital Output Test
Device code (See 4.2.6.7.)
[Status only] 06: Passed, 07: Failed
Example) Status
90 02 21
06
Passed
MSI_CL
Test Print
DIAGSTART command
NOTE: While the Process Motor Assembly, P/H Motor Assembly and
Developer Clutch Assembly are on, and the Developer
Assembly is in the development position, do not turn on the DB
output (AC component) or DB output (AC component) and DB
output (DC component) at the same time.
NOTE: Do not keep the Dispense Motor Assembly turned on for more
than 10 seconds to prevent toner from being clogged too much
in the developer assembly and gears from being damaged.
NOTE: While the Process Motor Assembly is turned off and the P/H
Motor Assembly on, do not set the 2nd BTR in the advanced
position to prevent the IBT Belt Assembly from being damaged.
NOTE: While the 2nd BTR is set in the advanced position, do not turn
on the Process Motor Assembly to prevent the IBT Belt
Assembly from being damaged.
NOTE: Do not turn on the 1st BTR with the Process Motor Assembly
turned off to prevent the IBT Belt Assembly from being
damaged.
NOTE: When the Process Motor Assembly and the P/H Motor
Assembly are turned off, do not turned on the 2nd BTR to
prevent the IBT Belt Assembly from being damaged.
NOTE: Do not turn on the P/H Motor Assembly without the Drum
Cartridge or the Waste Toner Box, otherwise the toner will spill.
NOTE: Do not turn on the P/H Motor Assembly or the Developer Clutch
Assembly when the Development Assembly is out-of-place to
prevent the inside of the printer from contaminated and the
gears from being damaged due to improper engagement.
NOTE: Do not turn on the H/R Heater and the P/R Heater for more than
3 seconds to prevent the Main Fuser from being damaged.
Rev. B
4-26