Introduction; General Precautions; L-2. How To Use This Book; L-3. Reading The Text - Minolta EPI 054 User Manual

FrameMaker Ver.5.5(PC) EP1054/EP1085/EP2030 TROUBLESHOOTING
98.05.15
1

INTRODUCTION

1-1.

General Precautions

1. When servicing the copier with its covers removed, use utmost care to prevent your
hands, clothing, and tools from being caught in revolving parts including the chains and
gears.
2. Before attempting to replace parts and unplug connectors, make sure that the power
cord of the copier has been unplugged from the wall outlet.
3. Never create a closed circuit across connector pins except those specified in the text
and on the printed circuit.
4. When creating a closed circuit and measuring a voltage across connector pins speci-
fied in the text, be sure to use the green wire (GND).
5. When the user is using a word processor or personal computer from the wall outlet of
the same line, take necessary steps to prevent the circuit breaker from opening due to
overloads.
6. Keep all disassembled parts in good order and keep tools under control so that none
will be lost or damaged.
1-2. How to Use This Book
1. If a component on a PWB or any other functional unit including a motor is defective, the
text only instructs you to replace the whole PWB or functional unit and does not give
troubleshooting procedure applicable within the defective unit.
2. All troubleshooting procedures contained herein assume that there are no breaks in the
harnesses and cords and all connectors are plugged into the right positions.
3. For the removal procedures of covers and parts, see DIS/REASSEMBLY, ADJUST-
MENT.
4. The troubleshooting procedures are given in the order of greater frequency of trouble or
order of operation.
5. The procedures preclude possible malfunctions due to noise and other external causes.
1-3. Reading the Text
1. The paper transport failure troubleshooting procedures are given according to the
symptom. First identify the location where the paper is present and start the procedure
for that particular location. For malfunction troubleshooting, start with step 1 and
onward.
2. Make checks in numerical order of steps and, if an item is checked okay, go to the next
step.
Pattern 1
Step Check Item Result
1 Is ...? YES
2 Go to step 2 if it checks okay.
Pattern 2
Action Step Check Item Result
Do this. Is ...?
1
2
T-1
Action
YES Do this.
NO Check that.
Go to step 2 if it
checks okay.