Read Panasonic FP-7742 / FP-7750 (serv.man2) Service Manual online
Service Manual
ORDER NO. OED9607317C1
Plain Paper Copier
FP-7742/7750
FP-7742/7750 Service Manual
(General)
This service information is designed for experienced repair technicians only and
is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of
potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced
professional technicians. Any attempt to service or repair the product or products
dealt with in this service information by anyone else could result serious injury or
death.
For U.S.A
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful interference when the equipment
is operated in a commercial environment. This equipment generates, uses, and
can radiate radio frequency energy and, if not installed and used in accordance
with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to
cause harmful interference in which case the user will be required to correct the
interference at his/her own expense.
Any unauthorized changes or modifications to this equipment would void the
users authority to operate this device.
This manual was developed and is supplied to authorized servicing dealers by
Panasonic Communications & System Co. for the sole purpose of providing
information necessary for the equipment's proper support. It is intended that this
information be confidential and may not be reproduced without prior written consent
from Panasonic Communications & Systems Co. Panasonic Communications &
Systems Co. reserves the right to change any information enclosed herein without
prior notification.
*
WARNING
Introduction
New Function
Sub Assemblies
Preventive
Maintenance
Contents / Index
I. Introduction
1.1 Specification ..................................................................................... 1-1
1.2 Features ............................................................................................ 1-3
1.3 System Configuration ....................................................................... 1-4
1.4 Operation .......................................................................................... 1-7
1.5 Component Location ......................................................................... 1-8
1.6 Copy Process ................................................................................. 1-10
1.7 Precautions on Set Up .................................................................... 1-11
1.8 Precautions with Consumables ...................................................... 1-12
II. New Function
2.1 Image Control ( Quantum
TM
Technology ) ....................................... 2-1
2.2 Toner Density Control ....................................................................... 2-3
2.3 Trouble Avoidance Mechanism ........................................................ 2-5
2.4 ETP
TM
System - Evaluative Toner Processing ................................. 2-7
2.5 Re-try Control for Paper Misfeed ...................................................... 2-8
III. Sub Assemblies
3.1 Main Drive ......................................................................................... 3-1
3.2 Operation
(1) Sheet bypass paper feed ....................................................... 3-2
(2) Paper feed unit ....................................................................... 3-5
(3) Developer unit ........................................................................ 3-8
(4) Toner hopper unit ................................................................. 3-14
(5) Paper transport unit and separation unit .............................. 3-17
(6) Fuser unit ............................................................................. 3-19
(7) Optics unit ............................................................................ 3-24
(8) Automatic duplex unit ( ADU ) .............................................. 3-33
IV. Preventive Maintenance
4.1 Precautions for Periodic Maintenance Service ................................. 4-1
4.2 Cleaning Method ............................................................................... 4-2
4.3 Disassembly and Re-assembly
(1) Multi-feed bypass ................................................................... 4-6
(2) Paper feed unit ....................................................................... 4-9
(3) Developer unit ...................................................................... 4-12
(4) Fuser unit ............................................................................. 4-17
(5) Optics unit ............................................................................ 4-22
(6) Automatic duplex unit ( ADU ) .............................................. 4-30
(7) Main Body ............................................................................ 4-33
Caution:
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by the manufacturer.
Dispose of used batteries according to the manufacture's instructions.
