Canon NP6012 User manual

— NPSOTZ/NPoUlar
[NPBA
SERVICE
~ MANUAL
REVISION 1
Canon
+
SEPT. 1985 FY8-13DW-010
TED MH JAPAN CIMPRIME AU JAPON)

IMPORTANT
THE INFORMATION CONTAINED HEREIN IS PUBLISHED BY CANON, INC., JAPAN, AND IS
FOR REFERENCE USE ONLY. SPECIFICATIONS AND OTHER INFORMATION CONTAINED
HEREIN: MAY VARY SLIGHTLY FROM ACTUAL MACHINE VALUES OR THOSE FOUND IN
ADVERTISING AND OTHER PRINTED MATTER.
ANY QUESTIONS REGARDING INFORMATION CONTAINED HEREIN SHOULD BE
DIRECTED TO THE COPIER SERVICE DEPARTMENT OF THE SALES COMPANY.
COPYRIGHT © 1995 CANON INC.
Printed in Japan
Inprimé au Japon
Prepared by
OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DEPARTMENT
OFFICE IMAGING PRODUCTS TECHNICAL SUPPORT DIVISION
CANON INC.
30-2; Shimomaruko 3-chome,Onta-ku, Tokyo 146 Japan
CATER
©
105
CU
Oe.
CANON
MPOTE
|
MPOOIZE
/
MPCTIE
HEY.1
CEPT,
1095
PRNTES
WH
JAPIN
(IMPRLME
AN
JUPOR)

This Service Manual contains the basic facts and figures about the plain paper copier
NP6012, NP6012F, NP6212, and is compiled to serve as a handy reference for servicing the
machine in the field.
This Service Manual consists of the following chapters:
In CHAPTER 1, “GENERAL DESCRIPTION,” a brief discussion of the copier’s features,
specifications, and an explanation of its operation are given.
CHAPTER 2 “COPYING PROCESS?” deals with the inner workings of the copier associated
with the generation of copies.
CHAPTER 3 “OPERATIONS AND TIMING” explains how the copier’s electrical and
mechanical systems are related to each other with respect to functions and timing of
operations.
In CHAPTER 4, “MECHANICAL SYSTEM,” the copier’s mechanical system is discussed as
to its operation, disassembly, reassembly, and adjustment.
CHAPTER 5 “INSTALLATION” gives step-by-step instructions for installing the copier
together with checks to make for each step.
CHAPTER 6 “MAINTENANCE AND SERVICING’ contains tables of replacement parts and
consumables.
In addition to the above chapters, this Service Manual contains a set of appendixes
consisting of a general timing chart and general circuit diagrams.
A separate document entitled Service Handbook is also available for troubleshooting
problems in the copier.
-Note:
The contents of this manual may be updated from time to time to reflect improvements
rendered to the copier; a Service Information Bulletin will be issued as necessary to cover
major changes.
All service persons are expected to be thoroughly familiar with the information contained in
this manual, Service Handbook, and Service Information Bulletins, for quick response to the
user’s needs.
COPYRIGHT © 1995 CANON INC. CANON NP6012/NPSOIZF/HP6212 REV SEPT, 1995 PRINTEDIN JAPAN (IMPRIME AU JAPON}

CONTENTS
CHAPTER 1 GENERAL DESCRIPTION
FEATURES... ccc 121 Hl. NAMES OF PARTS... eee 1-6
Il. SPECIFICATIONS vo. seceeerees 1-2 IV. OPERATIONS uu... scssceecseneescees 1-9
CHAPTER 2 COPYING PROCESS
I]. IMAGE FORMATION..............5 21 li. AUXILIARY PROCESS... 2-8
CHAPTER 3 OPERATIONS AND TIMING
I. BASIC OPERATION... 3-1 MIL. AD Resscscnsvevesaviitovisvspivapszeiseteotane 3-68
Il. EXPOSURE SYSTEM - a1 Vill. STANDARDS AND
I, IMAGE FORMATION SYSTE!
. BA7 ADJUSTMENTS o.ccccscscssssssessssn
3-45 IX. SERVICE MODE... -
: 3-63 X. SELF DIAGNOSIS
3.64
IV.
Vi.
PICK-UP/FEEDING SYSTEM... Vill. ELECTRICAL SYSTEM.
| EXPOSURE SYSTEM... i IX. ADF.
V. CHARGING SYSTEM
SELECTING THE SITE... 5-1 Hl. RELOCATING THE COPIER ...... 5-17
ll. UNPACKING AND
INSTALLATION... sessseeseeseeseees 5-2
COPYRIGHT © 1995 CANCNINC. CANON NP6O12 /NPGOI2F /NP5212 REV. SEPT. 1995 PRINTEDIN JAPAN (IMPRIME AU JAPON)

CHAPTER
6
MAINTENANCE
AND
SERVICING
Il. PERIODICALLY REPLACED {. DURABLES AND
PART
Sinccte
cas
ilasecaneeaeaonnos
61
CONSUMABLES
......cee
ere
recerees
6-1
i, SCHEDULED SERVICING.......... 61
APPENDIX
=n
Se
A. GENERAL TIMING CHART ........ A-1 |. INTENSITY/AE SENSOR
B.
SIGNALS
AND
CIRCUIT
DIAGRAM
......
secre
A-27
ABBREVIATIONS
A-3
J.
SENSOR
CIRCUIT
DIAGRAM....
A-28
C.
GENERAL
CIRCUIT
DIAGRAM..
A-5
K.
NOISE
FILTER
CIRCUIT
D.
DC
CONTROLLER
CIRCUIT
DIAGRAM
Qu...
eeeececceeteeeereteereatees
A-29
DIAGRAM
.....scsesceesceesceeteneneeneees
A7
L.
HIGH
VOLTAGE
CONTACT
E.
ADF
CONTROLLER
CIRCUIT
CIRCUIT
DIAGRAM
.......ecereceee
A-30
DIAGRAM...
cecceseeeceenenrereceeeee
“15
M.
BLANK
EXPOSURE
(front)
F.
COMPOSITE
POWER
SUPPLY
CIRCUIT
DIAGRAM.........
ee
A-31
CIRCUIT
DIAGRAM
.........
eee
A-18
N.
BLANK
EXPOSURE
(rear)
G.
TONER
LEVEL
DETECTION
CIRCUIT
DIAGRAM
CIRCUIT
DIAGRAM
........crcreree
A-24
©.
PRE-EXPOSURE
CIRCU
H.
CONTROL
PANEL
CIRCUIT
DIAGRAM
DIAGRAM.
.......2:cecerceeseessseeteeen
eee
A-25
P.
SPECIAL
TOOLS
..
Q.
SOLVENTS/OILS
COPYRIGHT
©
1995
CANON
INC.
CANON
NP6D12/NP6OI2F
/NP6212
REV.1
SEPT,
1995
PRINTED
IN
JAPAN
(PRIME
AU
JAPON)

CHAPTER 1
GENERAL DESCRIPTION
I?
TREATURE
ST
Re
a
sccossnctsesprebiateveyerr
1-1
lll.
NAMES
OF
PARTS
.......56....-000
1-6
I.
SPECIFICATIONS..,........-..:cccc
1-2
IV.
OPERATIONS
0,0...
cceceverttenseseee
1-9
COPYRIGHT
©
1995
CANON
INC.
CANON
NPGO12/NPGOI2F
P6212
REV.
SEPT.
1955:
PRINTED
IN
JAPAN
(MPRIME
AU
JAPON)

ESS SSS es GENERAL DESCRIPTION ad
I. FEATURES
1, Fixed copyboard with zooming.
* in addition to the default reproduction ratios, a ratio between 70% and 141% may be
selected.
2. Designed with considerations for the environment.
* The use of a charging rolter helps to limit the generation of ozone; average of 0.01 ppm or
less, maximum of 0.02 ppm or less. (1/100 to 1/000 of existing machines)
3. Uses a SURF fixing assembly.
* The use of the SURF fixing mechanism enables a 0-sec wait time.
* In addition, the maximum power consumpticn is 0.98 kW or less.
4. Cassette accommodating various types of paper and 2-way pick-up.
* The universal cassette (about 250 sheets) accommodates paper of sizes between
A4/LTR and A5S/STMT.
* In addition, sheets as large as A4/LTR to business card may be used (manual).
5. Separate top unit.
*¢ The copier’s top unit may be opened to make jam removal easy.
COPYRIGHT © 1995 CANON INC. CANON NP6012/NPGOI2F /NP6212 REV.t SEPT, 1995 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-1

mmm
GENERAL
DE
SCP
10
(am
ll. SPECIFICATIONS
A. Copier
1. Type
: Desktop
| Fixed
__|Fluorescent lamp (17 W)
Fixed lens array
: |OPC (24 dia.)
Auto Cassette (1 holder)
Multifeeder
Curvature separation + static eliminator
Cleaning Blade
Original orientation —_| Center reference (copyboard)
1-2
COPYRIGHT
©
1995
CANON
INC.
CANON
NP6O12/NPGO12F/NP6212
REV.
SEPT.
1995
PRINTED
IN
JAPAN
{IMPRIME
AU
JAPON)

GENERAL DESCRIPTION ia
3. Performance
‘Original type Sheet, book, 3-D object (2 kg max.)
Maximum original size | A4/LTR, (LGL)
Maximum original size_ :
MRECT.
g
a
220/240V
BIR
3
S
WEEE
70%~ 141% (in 1% increments)
0 sec (approx.; at 15°C/68°F)
First copy time 10 sec (approx.; at 15°C/68°F, with scanning lamp heater ON)
Continuous copying 100 copies (max.)
See Table 1-101.
i
Copy size
AAR/LTR-R (max.), business card (min.)
Plain paper (64 to 80 g/m?), tracing paper (GNT80), colored paper*
Plain paper (52 to 128 g/m?), tracing paper (GNT80), colored paper’,
postcard’, transparencies’, business card (200 g/m? or less, 51X88 mm or
more), label sheet*
Copy paper type
J
f
Plain paper (60 to 128 g/m?), colored paper’, postcard*, business card (200
g/m? or less, 51X88 mm /2.0X3.5 in. or more)
250 sheets, clawless, front loading, A4/LGL to A5/STM (universal)
sz a
5 mm /0.20 in. deep (approx.; about 50 sheets of 80 g/m? paper)
100 sheets (approx.; A4, 80 g/m? paper)
2.0+1.5 mm /0.08+0.06 in. {two-sided/overlay/one-sided)
0,0+2.0-0.0 (A4), 0.0+4.0-0.0 (LGL/LTR) (two-sided/overlay/one-sided)
Available (about 5 min; fixed)
*As recommended by Canon.
‘Single feeding only.
COPYRIGHT © 1995 CANON INC. CANON NP6O12/NP6OI2F/NP6212 REV. SEPT. 1995 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-3

fam GENERAL DESCRIPTION
7.5 to 32,5°C/45.5 to 90,5°F
5 to 85%
810.60 to 1013.25hPa
Serial number
NP6012 NP6012F
NUB xxx, NUC xxxxx NUE xxxxx
Serial number
NP6012 NP6212
PTF Xxxxx, UTG xxxxx, RTG xxxxx, PTH XXXXX
TFA XXxxXx
0.9 kW or less
about 20 W with scanning lamp heater ON
about 17 W with scanning lamp heater OFF
(approx.; about 5 min; reference only)
0.4 kWh (approx.; reference only}
66 dB or less (sound power level under ISO)
0.01 ppm or fess (average), 0.02 ppm or less (max.)
A478 mm /18.8 in (approx.)
453 mm /17.8 in (approx.)
290 mm /11.4 in (approx.)
20.0 kg /44.0lb (approx.; including cassette)
Keep wrapped to protect against humidity.
Avoid direct sunshine; keep at 40°C/85% or less.
1-4 COPYRIGHT © 1995 CANONINC. CANON NP6O12/NP6OI2F /NP6212 REV.1 SEPT. 1995 PRINTEDIN JAPAN (IMPRINE AU JAPON)

SSS Saar rs GENE IAL DESCRIPTION Eo]
Paper size
AAR -> ASR
LGL > LTR-R
B5R ~ A5R
MARJIN
B5R > A5R
ENLARGE
ASR > A4R
Table 1-101
B. ADF
Original pick-up Automatic pick-up / delivery
Original placement Face down Place the first page at the bottom.
Original orientation Center reference
Original separation —_| Top (top original picked up first)
Original type 50 to 128 gim (sheet ; one-side)
Original size Ad (LTR) to AS (STMT), LGL
Original tray capacity | 30 sheets (stack height about 3 mm/0.1 in)
Paper of 80 g/m orless.
Original processing
One-sided originals
Original size identification Not linked with the copier.
Linked with the copier.
Yes (in feeding direction)
Original detection at strat | Yes
474mm/18.8 in (approx.; wilh tray open, about 659mm/25.9 in
394mm/15.5 in (approx.)
74mm/2.9 in (approx.)
5kg/11 Ib (approx.)
Power supply +24 VDC, +5 VDC (from copier)
Maximum power consumption | 40 W or less
Weight
COPYRIGHT © 1995 CANON INC. CANON NP6O12/NP6012F/NP6212 REV.1 SEPT. 1995 PRINTED IN JAPAN (IMPRIME AU JAPON} 1-5

[OU
GENE
RAL
DESCRIP
TON
Se
ee
SES
lll. NAMES OF PARTS
A. External View
4. NP6012
® Static eliminator cleaner @ Right door @ Copyboard cover
@ Slide guide ® Cassette Scanning lamp heater
@ Multifeeder © Copyboard glass switch
Figure 1-301 Figure 1-302
@ Copy density correction @ Static eliminator @ Copy tray
dial @ Delivery guide plate ©) Power cord connector
© Open/close lever
Figure 1-303
1-6 COPYRIGHT © 1995 CANON INC. CANON NPGO12/NPGOTZF /NPG212 AEV.1 SEPT, 1995 PRINTED IN JAPAN (INPRIME AU JAPON)

LL | i SSSA OTS CAC UON ao |
2. NP6012F /NP6212
®
@ ADF @ Right door @ Scanning lamp heater
@® Slide guide @ Cassette switch
@ Multifeeder © Copyboard glass
Figure 1-304 Figure 1-305
@ Copy density correction @ Delivery guide plate © Open/close lever
dial @ Copy tray @ Static eliminator cleaner
@_ Static eliminator © Power cord connector
Figure 1-306
COPYRIGHT © 1995 CANONINC. CANON NP6O12/NPGOI2E/NP6212 REV.1 SEPT. 1995 PRINTED IN JAPAN (IMPRIME AU JAPON) 1-7

Wl GENERAL DESCRIPTION
B. Cross Section
1. Copier
8 8 e2ON 8 @ OH BABS DH B®
@ No. 3 mirror @® Reflecting plate @) Static eliminator
@® No. 2 mirror ® No. 4 mirror @ Photosensitive drum
@ No. 1 mirror No. 5 mirror @) Feeding assembly
@ Scanning lamp @® Copyboard glass @ Primary charging roller
@® Heat exhaust fan Copyboard cover @ Cassette
@® Drum unit @ Multifeeder tray € Fixing film tension roller
@ Lens array Cassette pick-up roller 6) Fixing film
Pre-exposure lamp Multifeeder pick-up roller § @) Lower fixing roller
@
No.1
charging
rotler
@
Developing
assembly
@
Fixing
film
drive
roller
cleaning pad @) Registration roller @ Delivery roller
Side blank exposure lamp @ Developing cylinder 6) Delivery tray
a) No. 6 mirror @ Transfer roller
Figure 1-307
2.ADF
© ® ® ® ©
@ ® B®
@
Delivery
roller
®
Auxiliary
tray
©
Feeding
belt
drive
roller
@ Delivery tray @® Guide plate Feeding belt
@ Pick-up roller @ Separation pad @ Feeding belt roll
@
Original
tray
Registration
roller
@
Feeding
belt
tink
roller
Figure 1-308
1-8
COPYRIGHT
©
1995
CANON
INC.
CANON
NP6OT2/NPGOT2F/NPE212
REV.1
SEPT.
1995
PRINTED
IN
JAPAN
(IMPRINE
AU
JAPON)
,

GENERAL DESCRIPTION Ba
IV. OPERATIONS
A. Contro! Panel
1. NP6012
Figure 1-401a (Inch-configuration)
Figure 1-401b (AB/inch-configuration)
Figure 1-401c
COPYRIGHT © 1995 CANONINC. CANON NP6O12/NP6OL2F/NPS212 REV.1 SEPT. 1995 PRINTED IN JAPAN (IMPRIME AU) JAPON} 1-9

Wl GENERAL DESCRIPTION
2. NP6012/NP6212
=
wo >
geri cals ||
mw oy 1B
LAL ERA O = ment la
Ma ©.
Ben Dee al Gen Fe | ee
——
Figure 1-401e (NP6212)
Figure 1-401f
1-10
COPYRIGHT
©
1995
CANON
INC.
CANON
NP6012/NPSO12F
INPG212
REV.A
SEPT.
1995
PRINTED
IN
JAPAN
{IMPRIME
AU
JAPON)

[SSS SSS sy GENERAL DESCRIPTION OO)
Copy Density Adjust
lever
Us io Manually adjust the copy density.
Ratio indicator
Indicates the selected reproduction ratio.
Paper Select!
Add Paper indicator
Replace Toner
Cartridge indicator
* Indicates the selected cassette or
multifeeder,
¢ Flashes when paper runs out.
Flashes when the toner cartridge must be
teptaced.
Replace Drum Unit
indicator
\f the model has the drum unit replacement
time auto indication function, flashes then
remains on when the drum unit must be
teplaced and remains on when the waste
toner must be disposed of,
if the model does not have the function,
flashes when the waste toner must be
disposed of.
Copy Coun
Ratio indicator
ratio.
Indicates the copy count or reproduction 100 (max.; continuous.
copying)
Clear/Stop key
“Default Mode.
Reproduction ratio: 100%
Copy count: 1
Paper select: cassette
Copy density: AE
Stops copying or returns the copy mode to
default".
Copy Start key
‘Starts copying.
Power switch
Turns on and off the power.
Copy Count/
Zoom Set key
Zoom Mode key
Sets a copy count or a reproduction ratio.
Selects or deselects zoom mode.
Zoom indicator
Paper Select key
‘Tums on when zoom mode is selected.
Flashes when a jam occurs.
Selects the cassette as the source of paper
or Selects the multifeeder.
Default Ratio key
Selects a default reproduction ratio,
“May be between 70% and
141% in 1% increments.
AE key
Selects or deselects AE mode.
AE indicator
Tums on when AE is selected,
Scanning Lamp
Heater switch
COPYRIGHT © 1995 CANON INC.
CANON NP8012/NP6OI2F /NP6212 REV.1 SEPT. 1995 PRINTED IN JAPAN (IMPRIME AU JAPON)
Prevents delayed first copy time in a cold
environment.
OFF at time of shipment,
Table 1-401
1-11

au GENERAL DESCRIPTION
B. Basic Copying Operations
1) Turn on the power switch.
¢ The wait time is 0 sec.
*The auto power-off mechanism
becomes activated to automatically
turn off the power if no key is operated
in about 5 min.
2) If you are not using the ADF, lift the
copyboard cover, and place an original
face down along the size index.
a. Place the original so that its center
is aligned against the arrow (—>):;
then, bring down the copyboard
cover.
Figure 1-402
Figure 1-403
1-12
COPYRIGHT
©
1995
CANONINC.
CANON
NP6O12/NPGQ12F/NP6212
REV.1
SEPT.
1995
PRINTED
IN
JAPAN
(MPRIME
AU
JAPON)

——— SSS SSS GENO AL DESCRIPTION Go
3)
4)
5)
6)
7)
COPYRIGHT © 1995 CANON INC.
If you need to manually adjust the copy
density, deselect AE and use the Copy
Density Adjust lever.
As necessary, press the Default Ratio
key or Zoom key.
a. When you press the Zoom key, ‘%’
appears on the Copy Count/Ratio
indicator so that you may set the
ratio between 70% and 141% in 1%
increments.
‘%’ disappears if the Copy Count/
Ratio key is not operated in about 3
sec.
b. When you press the Default Ratio
key, the ratio changes as follows for
each press:
Loe 141%
DIRECT 100%
MARGIN 86%
LGL ® LTR 78%
pe MIN. 70%
(Inch- configuration)
A5 e A4
BS A4/LTR
BS AS/STMT
> > AS
(AB/nch- configuration)
If you are using the multifeeder, press
the Paper Select key.
Check that the '%' notation on the Copy
Count/Ratio indicator has turned off;
then, set the number of copies to make
using the Copy Count/Zcaom Set key.
(The count should appear on the Copy
Count indicator.)
Press the Copy Start key.
a. As may copies as you have speci-
fied will be made automatically.
b. No other keys than the Clear/Stop
key or Copy Density adjustment
lever/AE OFF will be accepted until
CANON NP6O12/NP6OI2F/NP6212 REV.1 SEPT, 1995 PRINTED IN JAPAN (IMPRIME AU JAPON)
the last copy has been made.
c. You may switch from automatic den-
sity adjustment mode to manual
density adjustment mode between
copying has started and the last
copy is made; however, you cannot
switch from manual density adjust-
ment mode to automatic density
adjustment.
d. When copying is finished, the Copy
Count indicator indicates the initial
copy count. If copying stopped as a
result of the absence of paper, a
press on the Copy Start key after
supplying paper will automatically
make the remaining number of
copies.
e. To stop copying operation during
continuous copying, press the
Clear/Stop key; the ongoing copy
run is finished before the operation
stops. (At this time, the Copy Count
indicator indicates the initial count.)
f. If paper jams, the JAM indicator will
flash and copying operation stops;
open the top unit. (The power turns
off when the top unit is opened for
removal of the jam.)
g. After copying operation is over, the
auto power-off mechanism becomes
activated if the copier is left alone for
about 5 min without further key
operation, automatically turning off
the power.
Using Transparencies
Shift the delivery guide plate on the copy
tray upright.
Figure 1-404
1-13