4. Replacement and Adjustment
General Cautions
Notes on the Main Power Switch
The main power button of this machine has been changed to a push-button switch (push button) from the
conventional rocker switch. The push switch has characteristics and specifications different from the
rocker switch. Care must be taken when replacing and adjusting parts.
Characteristics of the Push Switch (DC Switch)
Power is supplied to the machine even when the main power switch is turned OFF.
The push switch in this machine uses DC (direct current). Therefore, if the AC power cord is
connected to an electrical outlet, power is supplied to the controller board, the operation unit and
other modules even when the main power is turned OFF. When replacing the controller board and
the operation unit in this state, not only these boards, it will damage other electrical components.
So, when performing maintenance work such as replacing parts, in addition to turning off the main
power with the push switch, always unplug the AC power cord.
When you disconnect the power cord from the AC wall outlet, inside the machine there is still
residual charge.
When you disconnect the power cord from the AC wall outlet, inside the machine for a while there
is still residual charge. Therefore, if you remove boards in this state, it can cause a blown fuse or
memory failure.
-- How to remove the residual charge inside the machine--
After you unplug the power cord from the AC wall outlet, in order to remove the residual charge
from inside the machine, be sure to press the main power switch. Thus, the charge remaining in the
machine is released, and it is possible to remove boards.
When you reconnect the AC power cord into an AC wall outlet, the machine will start
automatically.
In order to remove the residual charge, push the main power switch while you disconnect the AC
power cord. At that time, the power ON flag inside the machine is set. Therefore, after you finish
work on the machine and reconnect the power cord to the AC, even if you do not press the main
power switch, the machine will start automatically and the moving parts will begin to move. When
working on moving parts, be careful that fingers or clothes do not get caught.
53
Summary of Contents for Da-P1
Page 1: ...Model Da P1 Machine Code M187 Field Service Manual January 2015 ...
Page 2: ......
Page 15: ...Recommendation 294 13 ...
Page 16: ...14 ...
Page 24: ...1 Product Information 22 ...
Page 54: ...3 Preventive Maintenance 52 ...
Page 63: ...1 Open the front cover A Exterior Covers 61 ...
Page 66: ...4 Screw 1 5 Release the stopper A 4 Replacement and Adjustment 64 ...
Page 70: ...4 Upper cover A 4 Operation Panel 1 Open the front cover A 4 Replacement and Adjustment 68 ...
Page 72: ...5 OPU board A 1 6 Board cover A Tab 2 7 Panel A 4 Replacement and Adjustment 70 ...
Page 73: ...8 Eco night sensor A Exterior Covers 71 ...
Page 79: ...11 Pull out two spring holders from the LED head A LED Optics 77 ...
Page 82: ...3 Hold the grip to pull the toner cartridge A out 4 Replacement and Adjustment 80 ...
Page 89: ...3 Paper feed clutch A 1 1 By pass Feed Clutch 1 Right Cover page 60 Drive Unit 87 ...
Page 104: ...4 Screws of the fusing lamp x3 5 Two brackets A 4 Replacement and Adjustment 102 ...
Page 131: ...4 Registration sensor A Tab 1 Paper Transport 129 ...
Page 134: ...Right Side 1 1 Rear Side 2 4 Replacement and Adjustment 132 ...
Page 299: ...Model Da P1 Machine Code M187 Appendices February 2015 ...
Page 300: ......
Page 310: ...1 Appendices Specifications 10 ...
Page 343: ...3 920 002 Mode select ENG 0 or 1 0 1 step Main SP Tables 3 43 ...
Page 452: ...MEMO 152 EN ...