Sharp AR-280 Service Manual page 93

Desk Unit Output
DM Transport motor
DLUM1 Lift up motor 1
DLUM2 Lift up motor 2
DLUM3 Lift up motor 3
DPFS1 Paper feed solenoid 1
DPFS2 Paper feed solenoid 2
DPFS3 Paper feed solenoid 3
DPFC1 Paper feed clutch 1
DPFC2 Paper feed clutch 2
DPFC3 Paper feed clutch 3
DTRC Transport clutch
Lcc Unit Output
LLED Dorr open LED
LPFC Paper feed clutch
LPFS Paper feed solenoid
LPFM Transport motor
LLM Lift motor
The LCC unit lit motor continues lifting up and falling down
5
5 - 1
Purpose Operation test/check
Function Used to check the operation of the display, LCD in the
(Purpose) operation panel, and control circuit.
Section Operation
(Display/Operation key)
Item Operation
Operation/ The LCD shows the following message.
Procedure (The contrast changes in the sequence of Current level
® Dark ® Light ® Current level ® Dark ® Light)
During that period, each LED is lighted.
5 - 2
Purpose Operation test/check
Function Used to check the operation of the heater lamp and the
(Purpose) control circuit.
Section Fixing (Fusing)
Item Operation
Operation/ 1. Select the lamp to be checked with the key.
Procedure
2. Press the [EXECUTE] key.
The selected heater lamp repeats ON/OFF in the
frequency of 500msec 5 times.
Then the [EXECUTE] key returns to the original dis-
play.
When the [EXECUTE] key is pressed during
ON/OFF operation of the heater lamp, the heater
lamp is turned OFF and the [EXECUTE] key returns
to the original display.
HL1 (LEFT): This lamp is on the left when viewed from the front and
it heats the center of the lamp.
HL2 (RIGHT): This lamp is on the right when viewed from the front
and it heats both ends of the lamp.
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7/13/2000