Olivetti MB-502 Service Manual
MB-502
Option Printer
SERVICE MANUAL
Code Y109730-6
PUBLICATION ISSUED BY:
Olivetti S.p.A.
77, Via Jervis - 10015 Ivrea (TO)
Italy
Copyright © 2008, Olivetti
All rights reserved
Revision history
After publication of this service manual, the parts and mechanism may be subject to change for
improvement of their performance.
Therefore, the descriptions given in this service manual may not coincide with the actual machine.
When any change has been made to the descriptions in the service manual, a revised version will be
issued with a revision mark added as required.
Revision mark:
• To indicate clearly a section revised, is shown at the left margin of the revised section.
The number inside represents the number of times the revision has been made.
• To indicate clearly a page that contains the revision, is shown near the page number of the
corresponding page.
The number inside represents the number of times the revision has been made.
NOTE
Revision marks shown in a page are restricted only to the latest ones with the old ones deleted.
• When a page revised in Ver. 2.0 has been changed in Ver. 3.0:
The revision marks for Ver. 3.0 only are shown with those for Ver. 2.0 deleted.
• When a page revised in Ver. 2.0 has not been changed in Ver. 3.0:
The revision marks for Ver. 2.0 are left as they are.
1
1
1
1
MB-502Outline
MaintenanceAdjustment / Setting
Troubleshooting
Field Service Ver. 1.0 Jun. 2008
CONTENTS
MB-502
Outline
1. Product specifications ............................................................................................. 1
Maintenance
2. Other ....................................................................................................................... 3
2.1 Disassembly/Adjustment prohibited items ............................................................ 3
2.2 Disassembly/Assembly/Cleaning list (other parts)................................................ 4
2.2.1 Disassembly/Assembly parts list................................................................... 4
2.2.2 Cleaning parts list ......................................................................................... 4
2.3 Disassembly/Assembly procedure........................................................................ 4
2.3.1 Manual bypass tray feed roller ...................................................................... 4
2.3.2 Manual bypass tray separation roller ............................................................ 6
2.3.3 Manual bypass tray left cover / Manual bypass tray right cover /
Manual bypass tray upper cover ................................................................... 7
2.3.4 Manual bypass tray unit ................................................................................ 8
2.4 Cleaning procedure ............................................................................................ 10
2.4.1 Manual bypass tray feed roller .................................................................... 10
2.4.2 Manual bypass tray separation roller .......................................................... 10
Adjustment/Setting
3. How to use the adjustment section ....................................................................... 11
4. State Confirmation ................................................................................................ 12
4.1 Check procedure ................................................................................................ 12
4.2 Sensor check screen .......................................................................................... 12
4.3 Sensor check list................................................................................................. 12
5. Machine Adjustment.............................................................................................. 13
5.1 Printer Area ........................................................................................................ 13
5.1.1 Leading Edge Adjustment ........................................................................... 13
5.1.2 Centering .................................................................................................... 14
5.1.3 Centering (Duplex 2nd side) ....................................................................... 16
5.2 Manual Bypass Tray Adjustment......................................................................... 17
6. Mechanical adjustment ......................................................................................... 19
6.1 Adjustment of the bypass paper size unit ........................................................... 19
Y109730-6 Service Manual i
MB-502
Outline
MaintenanceAdjustment / Setting
Troubleshooting
Field Service Ver. 1.0 Jun. 2008
Troubleshooting
7. Jam display ........................................................................................................... 21
7.1 Misfeed display................................................................................................... 21
7.1.1 Misfeed display resetting procedure ........................................................... 21
7.2 Sensor layout...................................................................................................... 22
7.3 Solution .............................................................................................................. 23
7.3.1 Initial check items ....................................................................................... 23
7.3.2 Misfeed at manual bypass feed section...................................................... 23
8. Trouble code ......................................................................................................... 24
8.1 Trouble code ....................................................................................................... 24
8.2 Solution .............................................................................................................. 24
8.2.1 C0211: Manual feed up/down abnormality ................................................. 24
ii Service Manual Y109730-6
Field Service Ver. 1.0 Jun. 2008 1. Product specifications
MB-502Outline
Outline
1. Product specifications
A. Type
B. Paper
*1: Image is not guaranteed when thick paper 3 is used
*2: Monochrome print only.
Name Multiple Bypass Tray
Installation Screwed to the copier
Registration Center
Type Paper source (maximum tray capacity)
Copy paper type Plain paper
(60 to 90 g/m
2
, 16 to 24 lb)
100 sheets
Thick paper 1
(91 to 150 g/m
2
, 24.2 to 40 lb)
20 sheets
Thick paper 2
(151 to 209 g/m
2
,
40.2 to 55.6 lb)
Thick paper 3
(210 to 256 g/m
2
,
55.9 to 68.1 lb) *1
OHP film
(crosswise feeding only) *2
Label sheets
Envelopes 10 sheets
Postcards
Translucent paper
Paper size Metric area A6S, B6S, A5, A5S, B5, B5S, A4, A4S, A3,
A3 Wide, FLS
8-
1
/2 x 11, 8-1/2 x 14, 11 x 17
Inch area B6S, A4, A3, FLS
5-
1
/2 x 8-1/2, 5-1/2 x 8-1/2S, 7-1/4 x 10-1/2,
7-
1
/4 x 10-1/2S, 8-1/2 x 11, 8-1/2 x 11S,
8-
1
/2 x 14, 11 x 17, 12 x 18
Copy paper
dimensions
Width 90 to 311.1 mm
3.6 to 12.3 inch
Length 139.7 to 432 mm
5.5 to 17 inch
Y109730-6 Service Manual 1
1. Product specifications Field Service Ver. 1.0 Jun. 2008
MB-502
Outline
C. Machine specifications
D. Operating environment
Conforms to the operating environment of the main body.
NOTE
• These specifications are subject to change without notice.
Power Requirements
DC 24 V
± 10 % (supplied from the main body)
DC 5 V
± 5 %
Max. Power
Consumption
27 W or less
Dimensions 472 mm (W) × 456 mm (D) × 102 mm (H)
18.6 inch (W) × 18.0 inch (D) × 4.0 inch (H)
Weight 2.9 kg (6.4 lb)
2 Service Manual Y109730-6
Field Service Ver. 1.0 Jun. 2008 2. Other
MB-502
Maintenance
Maintenance
2. Other
2.1 Disassembly/Adjustment prohibited items
A. Paint-locked screws
NOTE
• To prevent loose screws, a screw lock in blue or green series color is applied to
the screws.
• The screw lock is applied to the screws that may get loose due to the vibrations
and loads created by the use of machine or due to the vibrations created during
transportation.
• If the screw lock coated screws are loosened or removed, be sure to apply a screw
lock after the screws are tightened.
B. Red-painted screws
NOTE
• The screws which are difficult to be adjusted in the field are painted in red in order
to prevent them from being removed by mistake.
• Do not remove or loosen any of the red-painted screws in the field. It should also
be noted that, when two or more screws are used for a single part, only one representative screw may be marked with the red paint.
C. Variable resistors on board
NOTE
• Do not turn the variable resistors on boards for which no adjusting instructions
are given in Adjustment/Setting.
D. Removal of PWBs
CAUTION
• When removing a circuit board or other electrical component, refer to “Handling of
PWBs” and follow the corresponding removal procedures.
• The removal procedures given in the following omit the removal of connectors and
screws securing the circuit board support or circuit board.
• Where it is absolutely necessary to touch the ICs and other electrical components
on the board, be sure to ground your body.
Y109730-6 Service Manual 3
2. Other Field Service Ver. 1.0 Jun. 2008
MB-502
Maintenance
2.2 Disassembly/Assembly/Cleaning list (other parts)
2.2.1 Disassembly/Assembly parts list
2.2.2 Cleaning parts list
2.3 Disassembly/Assembly procedure
2.3.1 Manual bypass tray feed roller
1. Remove the manual bypass tray unit.
See P.8
2. Remove the E-ring [1], and remove
the paper feed clutch [2].
No. Section Part name Ref. page
1
Rollers
Manual bypass tray feed roller P. 4
2 Manual bypass tray separation roller P. 6
3
Exterior parts
Manual bypass tray left cover P. 7
4 Manual bypass tray right cover P. 7
5 Manual bypass tray upper cover P. 7
6 Unit Manual bypass tray unit P. 8
No. Section Part name Ref. page
1
Feed section
Manual bypass tray feed roller P. 1 0
2 Manual bypass tray separation roller P. 1 0
A0EPF2C001DA
[2]
[1]
4 Service Manual Y109730-6
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