Riso MZ870 User manual

VERSION 0.9
MAY, 2010
TECHNICAL MANUAL
Copyright : 2010 Riso Kagaku Corporation
All Rights Reserved. This Technical Manual was prepared
and written for the exclusive use of RISO International
Group Certied Dealers. Reproduction and/or transmittal
of this material in any form or by any means, including
photocopying or recording of the information is strictly
prohibited without the consent of a member of RISO
International Group.
RISO
RISO INTERNATIONAL GROUP
RISO KAGAKU CORPORATION (JAPAN) RISO DEUTSCHLAND GMBH (GERMANY)
RISO, INC. (U.S.A.) RISO FRANCE (FRANCE)
RISO EUROPE LIMITED (U.K.) RISO IBERICA (SPAIN)
RISO HONG KONG (HONG KONG) RISO CANADA (CANADA)
RISO UK (U.K.) ZHUHAI RISO TECHNOLOGY (CHINA)
RISO THAILAND LIMITED (THAILAND) RISO AFRICA (SOUTH AFRICA)
RISO KOREA LIMITED (KOREA) RISOGRAPH ITALIA (ITALY)
MZ870 / MZ890
MZ1070 / MZ1090
Differential information
compared to the existing MZ7 & MZ9 Series.
MZ870 / MZ890 / MZ1070 / MZ1090 (Revision 0.9)

MZ870 / MZ890 / MZ1070 / MZ1090 (Revision 0.9)

MZ870 / MZ890 / MZ1070 / MZ1090 (Revision 0.9)
INTRODUCTION
The existing MZ7 & MZ9 Series machines are based on RZ Series.
The new MZ870, MZ890, MZ1070 and MZ1090 Models are based on EZ Series.
Many of the parts used on the new MZ models are those of EZ machines.
It is therefore important to use the Spare Parts List for MZ870, MZ890, MZ1070 and MZ1090 Models in
ordering the parts for these new MZ models.
Though the parts are replaced from RZ type to EZ type, the removal of parts, etc. remains very similar.
This technical manual covers the major differences between the existing MZ (MZ7 & MZ9) and the new MZ
(MZ8 & MZ10) models.
The information on the small changes, such as replacement of RZ based parts to EZ based parts are omitted
in this manual.

MZ870 / MZ890 / MZ1070 / MZ1090 (Revision 0.9)
INDEX
Chapter 2 ........... Machine Summary
Chapter 3 ........... Machine Drive Section
Chapter 4 ........... First Paper Feed Section
Chapter 5 ........... Second Paper Feed Section
Chapter 11 ........... Master Removal Section
Chapter 14 ........... Master Making Section
Chapter 15 ........... Test Mode
Chapter 16 ........... Panel Message
Chapter 17 ........... Other Precautions

[ 2-5 ] MZ870 / MZ890 / MZ1070 / MZ1090 (Revision 0.9)
MACHINE SUMMARY
CHAPTER 2: MACHINE SUMMARY
CONTENTS
Machine Specications................................................................................2-3
Optional Accessories ..............................................................................2-3
RISO MZ 870 ..........................................................................................2-4
RISO MZ 890 ..........................................................................................2-6
RISO MZ 1070 ........................................................................................2-8
RISO MZ 1090 ......................................................................................2-10

[ 2-6 ]
MZ870 / MZ890 / MZ1070 / MZ1090 (Revision 0.9)
MACHINE SUMMARY
MEMO

[ 2-7 ] MZ870 / MZ890 / MZ1070 / MZ1090 (Revision 0.9)
MACHINE SUMMARY
Optional Accessories
A variety of optional accessories are available to enhance the capabilities of the machine.
For details about the optional accessories, see your dealer (or authorized service representative).
Auto Document Feeder AF-VI:II
Feed up to 50 sheets of originals automatically.
Auto Document Feeder DX-1
Feed up to 50 sheets of originals automatically. Both sides of original can be scanned automatically.
Color Drum (Cylinder)
Simply change the Drum (Cylinder) to print in multiple colors (colours). (Case included)
Key Card Counter
With a single button press, shows the numbers of printed copies and consumed masters within a given period of
time. This can help you manage costs.
Job Separator
With the Programed Printing function, allows the machine to print and sort into groups separated by tape.
RISO Network Card
Use to directly connect the machine to the network.
This comes with the RISO-MONITOR software that allows you to check the status of the machine from computers.
Document Storage Card DM-128CF
A Storage Card for using the Storage Memory function.
RISO Controller IS300
A custom controller enabling the machine to be used as a network-connected PostScript 3 printer.
RISO Stand D type (II)
RISO Stand N type (II)
Wide Stacking Tray
Paper Receiving Tray for sizes A6 - A3/Ledger 340 mm u555 mm (133/8" u2113/16").
Cover Kit: Paper Feed/Ejection
Card Feed Kit
Envelope Feed Kit
Machine Specications

[ 2-8 ]
MZ870 / MZ890 / MZ1070 / MZ1090 (Revision 0.9)
MACHINE SUMMARY
Machine Specications
RISO MZ870
Master-making/printing methods High-speed digital master-making/full automatic stencil printing
Original Type Book (10 kg (22 lb) or less), sheet
Original Size (max./min.)
When using the Glass Platen :
50 mm
u 90 mm (1
15
/
16
" u 3
9
/
16
") - 310 mm u 432 mm (12
3
/
16
" u 17")
When using Auto Document Feeder AF-VI:II (option) :
100 mm u148 mm (
3
15
/
16" u513/16") - 310 mm u432 mm
(12
3
/
16
" u 17" )
When using Auto Document Feeder DX-1(option) :
105 mm u128 mm (41/8" u51/16") - 297 mm u432 mm
(11
11
/
16
" u 17" )
Original Paper Weight
When using the Auto Document Feeder AF-VI:II (option) :
50 g/m
2
(13-lb bond) - 128 g/m
2
(34-lb bond)
When using Auto Document Feeder DX-1 (option) :
Single-sided feeding : 40 g/
m
2
(11-lb bond) - 128 g/m
2
(34-lb bond)
Duplex-sided feeding : 52 g/m2(14-lb bond) - 105 g/m2(28-lb bond))
Print Paper Size (max./min.) • Maximum size
320 mm u432 mm (
12
9
/
16
" u17")*
*Up to 555 mm (2113/16") of vertical paper dimension may be used.
If Print Drum (Cylinder) 1 is removed, and perform 1-Color (Colour) print-
ing with Drum (Cylinder) 2 with print speed of “150 ppm”, up to 364 mm
(
14
5
/
16
" ) of vertical paper dimension may be used.
• Minimum size
–Dual-Color (Colour) Print
182 mm u257 mm (73/16" u101/8") (B5)
–1-Color (Colour) Print (with Print Drum (Cylinder) 1)
100 mm u148 mm (315/16" u513/16")
–1-Color (Colour) Print (with Print Drum (Cylinder) 2)
182 mm u257 mm (73/16" u101/8") (B5)
Paper Supply Capacity 1000 sheets (64 g/m2(17-lb bond))
Print Paper Weight 46 g/m2(13-lb bond) - 210 g/m2(110-lb index)
Image Processing mode Line, Photo (Standard/Portrait/Group), Duo (Line/Photo/Shadow off),
Pencil (Darker/Lighter)
Master-making Time
(for A4/portrait/100% reproduction ratio)
Approx. 57 seconds (for Dual-Color print)
Approx. 24 seconds (for single-color print (Drum (Cylinder) 1))
Approx. 34 seconds (for single-color print (Drum (Cylinder) 2)) (when only
single Print Drum (Cylinder) is set)
Printing Area (max.) 291 mm u413 mm (117/16" u161/4")
Print Reproduction Ratio Zoom : 50 - 200%
Standard reproduction ratio (enlargement) : 163%, 141%, 122%, 116%
Standard reproduction ratio (reduction) : 87%, 82%, 71%, 61%
Margin+ : 90 - 99%
Print Speed Approx. 60 - 150 sheets per minute (Control panel: five steps variable,
touch panel: 150 ppm)
Print Position Adjustment Vertical : ±15 mm (±19/32") Horizontal : ±10 mm (±3/8")
Ink Supply Full automatic (1000 ml per cartridge)
Master Supply/Disposal Full automatic (approx. 220 sheets per roll)
Master Disposal Capacity 80 sheets
User Interface LCD Touch Panel with Progress Arrow indicators, front-side operation

[ 2-9 ] MZ870 / MZ890 / MZ1070 / MZ1090 (Revision 0.9)
MACHINE SUMMARY
Note:
• Please note that due to improvements and changes to the machine, some images and explanations in this manual
may not correspond to your machine.
• The specifications are subject to change without prior notice.
*1 The weight does not include Ink and Master.
*2The pollution degree of the usage environment due to dirt and dust in the air. Degree “2” corresponds to a general
indoor environment.
Optional Accessories Auto Document Feeder AF-VI:II, Auto Document Feeder DX-1, Color Drum
(Cylinder), Key Card Counter, Job Separator, RISO Network Card,
Document Storage Card DM-128CF, RISO Controller IS300, RISO Stand
D type (II), RISO Stand N type (II), Wide Stacking Tray, Cover Kit: Paper
Feed/Ejection, Card Feed Kit, Envelope Feed Kit
Power Source MZ870A : 100-240V~, 50/60Hz <7.3/3.0A>
Dimensions When in use :
1625 mm (W) u 735 mm (D) u 740 mm (H)
(6331
/
32
" (W) u 28
15
/
16
" (D) u 29
1
/
8
" (H))
When in storage :
1005 mm (W) u 735 mm (D) u 740 mm (H)
(
39
9
/
16
" (W) u 28
15
/
16
" (D) u 29
1
/
8
" (H))
Weight*1Approx. 171 kg (3765
/
8lb)
Safety Standard IEC-60950-1 compliant, Indoor, pollution degree 2*2, At altitudes of 2000m
or lower

[ 2-10 ]
MZ870 / MZ890 / MZ1070 / MZ1090 (Revision 0.9)
MACHINE SUMMARY
Machine Specications
RISO MZ890
Master-making/printing methods High-speed digital master-making/full automatic stencil printing
Original Type Book (10 kg (22 lb) or less), sheet
Original Size (max./min.)
When using the Glass Platen :
50 mm
u 90 mm (1
15
/
16
" u 3
9
/
16
") - 310 mm u 432 mm (12
3
/
16
" u 17")
When using Auto Document Feeder AF-VI:II (option) :
100 mm u148 mm (
3
15
/
16" u513/16") - 310 mm u432 mm
(12
3
/
16
" u 17" )
When using Auto Document Feeder DX-1(option) :
105 mm u128 mm (41/8" u51/16") - 297 mm u432 mm
(11
11
/
16
" u 17" )
Original Paper Weight
When using the Auto Document Feeder AF-VI:II (option) :
50 g/m
2
(13-lb bond) - 128 g/m
2
(34-lb bond)
When using Auto Document Feeder DX-1 (option) :
Single-sided feeding : 40 g/
m
2
(11-lb bond) - 128 g/m
2
(34-lb bond)
Duplex-sided feeding : 52 g/m2(14-lb bond) - 105 g/m2(28-lb bond))
Print Paper Size (max./min.) • Maximum size
320 mm u432 mm (
12
9
/
16
" u17")*
*Up to 555 mm (2113/16") of vertical paper dimension may be used.
If Print Drum (Cylinder) 1 is removed, and perform 1-Color (Colour) print-
ing with Drum (Cylinder) 2 with print speed of “150 ppm”, up to 364 mm
(
14
5
/
16
" ) of vertical paper dimension may be used.
• Minimum size
–Dual-Color (Colour) Print
182 mm u257 mm (73/16" u101/8") (B5)
–1-Color (Colour) Print (with Print Drum (Cylinder) 1)
100 mm u148 mm (315/16" u513/16")
–1-Color (Colour) Print (with Print Drum (Cylinder) 2)
182 mm u257 mm (73/16" u101/8") (B5)
Paper Supply Capacity 1000 sheets (64 g/m2(17-lb bond))
Print Paper Weight 46 g/m2(13-lb bond) - 210 g/m2(110-lb index)
Image Processing mode Line, Photo (Standard/Portrait/Group), Duo (Line/Photo/Shadow off),
Pencil (Darker/Lighter)
Master-making Time
(for A4/portrait/100% reproduction ratio)
Approx. 57 seconds (for Dual-Color print)
Approx. 24 seconds (for single-color print (Drum (Cylinder) 1))
Approx. 34 seconds (for single-color print (Drum (Cylinder) 2)) (when only
single Print Drum (Cylinder) is set)
Printing Area (max.) 291 mm u425 mm (117/16" u163/4")
Print Reproduction Ratio Zoom : 50 - 200%
Standard reproduction ratio (enlargement) : 200%, 154%, 129%, 121%
Standard reproduction ratio (reduction) : 78%, 65%, 61%, 50%
Margin+ : 90 - 99%
Print Speed Approx. 60 - 150 sheets per minute (Control panel: five steps variable,
touch panel: 150 ppm)
Print Position Adjustment Vertical : ±15 mm (±19/32") Horizontal : ±10 mm (±3/8")
Ink Supply Full automatic (1000 ml per cartridge)
Master Supply/Disposal Full automatic (approx. 215 sheets per roll)
Master Disposal Capacity 80 sheets
User Interface LCD Touch Panel with Progress Arrow indicators, front-side operation

[ 2-11 ] MZ870 / MZ890 / MZ1070 / MZ1090 (Revision 0.9)
MACHINE SUMMARY
Note:
• Please note that due to improvements and changes to the machine, some images and explanations in this manual
may not correspond to your machine.
• The specifications are subject to change without prior notice.
*1 The weight does not include Ink and Master.
*2The pollution degree of the usage environment due to dirt and dust in the air. Degree “2” corresponds to a general
indoor environment.
Optional Accessories Auto Document Feeder AF-VI:II, Auto Document Feeder DX-1, Color Drum
(Cylinder), Key Card Counter, Job Separator, RISO Network Card,
Document Storage Card DM-128CF, RISO Controller IS300, RISO Stand
D type (II), RISO Stand N type (II), Wide Stacking Tray, Cover Kit: Paper
Feed/Ejection, Card Feed Kit, Envelope Feed Kit
Power Source MZ890U : 100-240V~, 50/60Hz <7.3/3.0A>
Dimensions When in use :
1625 mm (W) u 735 mm (D) u 740 mm (H)
(6331
/
32
" (W) u 28
15
/
16
" (D) u 29
1
/
8
" (H))
When in storage :
1005 mm (W) u 735 mm (D) u 740 mm (H)
(
39
9
/
16
" (W) u 28
15
/
16
" (D) u 29
1
/
8
" (H))
Weight*1Approx. 171 kg (3765
/
8lb)
Safety Standard IEC-60950-1 compliant, Indoor, pollution degree 2*2, At altitudes of 2000m
or lower

[ 2-12 ]
MZ870 / MZ890 / MZ1070 / MZ1090 (Revision 0.9)
MACHINE SUMMARY
Machine Specications
RISO MZ1070
Master-making/printing methods High-speed digital master-making/full automatic stencil printing
Original Type Book (10 kg (22 lb) or less), sheet
Original Size (max./min.)
When using the Glass Platen :
50 mm
u 90 mm (1
15
/
16
" u 3
9
/
16
") - 310 mm u 432 mm (12
3
/
16
" u 17")
When using Auto Document Feeder AF-VI:II (option) :
100 mm u148 mm (
3
15
/
16" u513/16") - 310 mm u432 mm
(12
3
/
16
" u 17" )
When using Auto Document Feeder DX-1(option) :
105 mm u128 mm (41/8" u51/16") - 297 mm u432 mm
(11
11
/
16
" u 17" )
Original Paper Weight
When using the Auto Document Feeder AF-VI:II (option) :
50 g/m
2
(13-lb bond) - 128 g/m
2
(34-lb bond)
When using Auto Document Feeder DX-1 (option) :
Single-sided feeding : 40 g/
m
2
(11-lb bond) - 128 g/m
2
(34-lb bond)
Duplex-sided feeding : 52 g/m2(14-lb bond) - 105 g/m2(28-lb bond))
Print Paper Size (max./min.) • Maximum size
320 mm u432 mm (
12
9
/
16
" u17")*
*Up to 555 mm (2113/16") of vertical paper dimension may be used.
If Print Drum (Cylinder) 1 is removed, and perform 1-Color (Colour) print-
ing with Drum (Cylinder) 2 with print speed of “150 ppm”, up to 364 mm
(
14
5
/
16
" ) of vertical paper dimension may be used.
• Minimum size
–Dual-Color (Colour) Print
182 mm u257 mm (73/16" u101/8") (B5)
–1-Color (Colour) Print (with Print Drum (Cylinder) 1)
100 mm u148 mm (315/16" u513/16")
–1-Color (Colour) Print (with Print Drum (Cylinder) 2)
182 mm u257 mm (73/16" u101/8") (B5)
Paper Supply Capacity 1000 sheets (64 g/m2(17-lb bond))
Print Paper Weight 46 g/m2(13-lb bond) - 210 g/m2(110-lb index)
Image Processing mode Line, Photo (Standard/Portrait/Group), Duo (Line/Photo/Shadow off),
Pencil (Darker/Lighter)
Master-making Time
(for A4/portrait/100% reproduction ratio)
Approx. 57 seconds (for Dual-Color print)
Approx. 24 seconds (for single-color print (Drum (Cylinder) 1))
Approx. 34 seconds (for single-color print (Drum (Cylinder) 2)) (when only
single Print Drum (Cylinder) is set)
Printing Area (max.) 291 mm u413 mm (117/16" u161/4")
Print Reproduction Ratio Zoom : 50 - 200%
Standard reproduction ratio (enlargement) : 163%, 141%, 122%, 116%
Standard reproduction ratio (reduction) : 87%, 82%, 71%, 61%
Margin+ : 90 - 99%
Print Speed Approx. 60 - 150 sheets per minute (Control panel: five steps variable,
touch panel: 150 ppm)
Print Position Adjustment Vertical : ±15 mm (±19/32") Horizontal : ±10 mm (±3/8")
Ink Supply Full automatic (1000 ml per cartridge)
Master Supply/Disposal Full automatic (approx. 220 sheets per roll)
Master Disposal Capacity 80 sheets
User Interface LCD Touch Panel with Progress Arrow indicators, front-side operation

[ 2-13 ] MZ870 / MZ890 / MZ1070 / MZ1090 (Revision 0.9)
MACHINE SUMMARY
Note:
• Please note that due to improvements and changes to the machine, some images and explanations in this manual
may not correspond to your machine.
• The specifications are subject to change without prior notice.
*1 The weight does not include Ink and Master.
*2The pollution degree of the usage environment due to dirt and dust in the air. Degree “2” corresponds to a general
indoor environment.
Optional Accessories Auto Document Feeder AF-VI:II, Auto Document Feeder DX-1, Color Drum
(Cylinder), Key Card Counter, Job Separator, RISO Network Card,
Document Storage Card DM-128CF, RISO Controller IS300, RISO Stand
D type (II), RISO Stand N type (II), Wide Stacking Tray, Cover Kit: Paper
Feed/Ejection, Card Feed Kit, Envelope Feed Kit
Power Source MZ1070E : 220-240V~, 50/60Hz <3.0A>
MZ1070A : 100-240V~, 50/60Hz <7.3/3.0A>
Dimensions When in use :
1625 mm (W) u 735 mm (D) u 740 mm (H)
(6331
/
32
" (W) u 28
15
/
16
" (D) u 29
1
/
8
" (H))
When in storage :
1005 mm (W) u 735 mm (D) u 740 mm (H)
(
39
9
/
16
" (W) u 28
15
/
16
" (D) u 29
1
/
8
" (H))
Weight*1Approx. 171 kg (3765
/
8lb)
Safety Standard IEC-60950-1 compliant, Indoor, pollution degree 2*2, At altitudes of 2000m
or lower

[ 2-14 ]
MZ870 / MZ890 / MZ1070 / MZ1090 (Revision 0.9)
MACHINE SUMMARY
Machine Specications
Specifications
RISO MZ1090
Master-making/printing methods High-speed digital master-making/full automatic stencil printing
Original Type Book (10 kg (22 lb) or less), sheet
Original Size (max./min.)
When using the Glass Platen :
50 mm
u 90 mm (1
15
/
16
" u 3
9
/
16
") - 310 mm u 432 mm (12
3
/
16
" u 17")
When using Auto Document Feeder AF-VI:II (option) :
100 mm u148 mm (
3
15
/
16" u513/16") - 310 mm u432 mm
(12
3
/
16
" u 17" )
When using Auto Document Feeder DX-1(option) :
105 mm u128 mm (41/8" u51/16") - 297 mm u432 mm
(11
11
/
16
" u 17" )
Original Paper Weight
When using the Auto Document Feeder AF-VI:II :
50 g/m
2
(13-lb bond) - 128 g/m
2
(34-lb bond)
When using Auto Document Feeder DX-1 :
Single-sided feeding : 40 g/
m
2
(11-lb bond) - 128 g/m
2
(34-lb bond)
Duplex-sided feeding : 52 g/m2(14-lb bond) - 105 g/m2(28-lb bond)
Print Paper Size (max./min.) • Maximum size
320 mm u432 mm (
12
9
/
16
" u17")*
*Up to 555 mm (2113/16") of vertical paper dimension may be used.
If Print Drum (Cylinder) 1 is removed, and perform 1-Color (Colour) print-
ing with Drum (Cylinder) 2 with print speed of “150 ppm”, up to 364 mm
(
14
5
/
16
" ) of vertical paper dimension may be used.
• Minimum size
–Dual-Color (Colour) Print
182 mm u257 mm (73/16" u101/8") (B5)
–1-Color (Colour) Print (with Print Drum (Cylinder) 1)
100 mm u148 mm (315/16" u513/16")
–1-Color (Colour) Print (with Print Drum (Cylinder) 2)
182 mm u257 mm (73/16" u101/8") (B5)
Paper Supply Capacity 1000 sheets (64 g/m2(17-lb bond))
Print Paper Weight 46 g/m2(13-lb bond) - 210 g/m2(110-lb index)
Image Processing mode Line, Photo (Standard/Portrait/Group), Duo (Line/Photo/Shadow off),
Pencil (Darker/Lighter)
Master-making Time
(for A4/portrait/100% reproduction ratio)
Approx. 57 seconds (for Dual-Color print)
Approx. 24 seconds (for single-color print (Drum (Cylinder) 1))
Approx. 34 seconds (for single-color print (Drum (Cylinder) 2)) (when only
single Print Drum (Cylinder) is set)
Printing Area (max.) 291 mm u425 mm (117/16" u163/4")
Print Reproduction Ratio Zoom : 50 - 200%
Standard reproduction ratio (enlargement) : 200%, 154%, 129%, 121%
Standard reproduction ratio (reduction) : 78%, 65%, 61%, 50%
Margin+ : 90 - 99%
Print Speed Approx. 60 - 150 sheets per minute (Control panel: five steps variable,
touch panel: 150 ppm)
Print Position Adjustment Vertical : ±15 mm (±19/32") Horizontal : ±10 mm (±3/8")
Ink Supply Full automatic (1000 ml per cartridge)
Master Supply/Disposal Full automatic (approx. 215 sheets per roll)

[ 2-15 ] MZ870 / MZ890 / MZ1070 / MZ1090 (Revision 0.9)
MACHINE SUMMARY
Note:
• Please note that due to improvements and changes to the machine, some images and explanations in this manual
may not correspond to your machine.
• The specifications are subject to change without prior notice.
*1 The weight does not include Ink and Master.
*2The pollution degree of the usage environment due to dirt and dust in the air. Degree “2” corresponds to a general
indoor environment.
Master Disposal Capacity 80 sheets
User Interface LCD Touch Panel with Progress Arrow indicators, front-side operation
Optional Accessories Auto Document Feeder AF-VI:II, Auto Document Feeder DX-1, Color Drum
(Cylinder), Key Card Counter, Job Separator, RISO Network Card,
Document Storage Card DM-128CF, RISO Controller IS300, RISO Stand
D type (II), RISO Stand N type (II), Wide Stacking Tray, Cover Kit: Paper
Feed/Ejection, Card Feed Kit, Envelope Feed Kit
Power Source MZ1090U : 100-240V~, 50/60Hz <7.3/3.0A>
Dimensions When in use :
1625 mm (W) u 735 mm (D) u 740 mm (H)
(6331
/
32
" (W) u 28
15
/
16
" (D) u 29
1
/
8
" (H))
When in storage :
1005 mm (W) u 735 mm (D) u 740 mm (H)
(
39
9
/
16
" (W) u 28
15
/
16
" (D) u 29
1
/
8
" (H))
Weight*1Approx. 171 kg (3765
/
8lb)
Safety Standard IEC-60950-1 compliant, Indoor, pollution degree 2*2, At altitudes of 2000m
or lower

[ 2-16 ]
MZ870 / MZ890 / MZ1070 / MZ1090 (Revision 0.9)
MACHINE SUMMARY
MEMO
MACHINE SUMMARY

[ 3-17 ] MZ870 / MZ890 / MZ1070 / MZ1090 (Revision 0.9)
MAIN DRIVE SECTION
CHAPTER 3: MAIN DRIVE SECTION
CONTENTS
Main Motor Belt Drive ..................................................................................3-2
B-Position of No. 1 Print Drum Air Pump Gear Assembly ......................3-3
Removing the Main Motor Assembly .........................................................3-4
Removing the Main Belt...............................................................................3-7

[ 3-18 ]
MZ870 / MZ890 / MZ1070 / MZ1090 (Revision 0.9)
MAIN DRIVE SECTION
Main Motor Belt Drive
The Main motor drive is changed from Gear drive to Belt drive.
This is to reduce the noise during the printing.
Main motor Gear drive
on the existing MZ7 & MZ9 series.
Main motor Belt drive
on the new MZ8 & MZ10 series.

[ 3-19 ] MZ870 / MZ890 / MZ1070 / MZ1090 (Revision 0.9)
MAIN DRIVE SECTION
B-Position of No. 1 Print Drum Air Pump Gear Assembly
The B-Position of the Air pump gear assembly for the N.1 Print drum is changed due to the modication on
the Main motor drive transmission from existing Gear drive to Timing belt drive.
B-Position on the existing MZ7 & MZ9 series.
B-Position on the new MZ8 & MZ10 series.
4 mm diameter Jig shaft
4 mm diameter Jig shaft
Existing MZ Models
< MZ7 & MZ9 >
New MZ Models
< MZ 8 & MZ10 >

[ 3-20 ]
MZ870 / MZ890 / MZ1070 / MZ1090 (Revision 0.9)
MAIN DRIVE SECTION
Removing the Main Motor Assembly
1. Turn OFF the machine power and disconnect the power cord from the machine.
2. Remove the rear left and rear right covers and open the Mechanical control PCB.
3. Remove the two Pressure springs, one for the No.1 Print drum and the other for the No.2 Print drum.
4. Remove the mounting screws (4 pcs) from the Pressure control unit and push the unit away to the left
to make working space.
5. Remove the Main belt tensioner plate assembly. (2 screws & 2 cap screws)
Caution:
Before loosening the screws and cap screws, make sure to memo down the belt tension scale setting.
The tension should be made a little tighter after the assembly.
Pressure spring of Print drum No.1
Remove also that for Print drum No. 2
Pressure control unit
Main belt tensioner plate