Canon imagePRESS C850 Instruction Manual

This document provides useful explanations about
procedures for printing documents and solutions to
common printing problems. We recommend you read
this document and the Users Guide.
USRMA-0684-00 Copyright CANON INC. 2016
Practical Guide
for Advanced Printing
You can access
canon.com/oip-manual to
read the User’s Guide that describes
all functions of this machine.

Contents
Recommended Types of Calibration � � � � � � � � � � � � � � � 2
Simple Calibration � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �4
Enhanced Calibration � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �5
Getting the Best Colors from Your Machine � � � � � � �16
Calibration after Purchase � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 19
Calibration After the Machine Is in Operation � � � � � � � � � � � � � � 37
Calibration As Needed � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 38
How to Get the Most Accurate Colors
Possible for Your Printouts � � � � � � � � � � � � � � � � � � � � � � � � 44
Step 1 Eliminating the Basic Causes � � � � � � � � � � � � � � � � � � � � � � � 44
Step 2 Changing Print Settings for a Job with the
imagePRESS Server � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 46
Smoothing Colors in Photographs, Figures,
Lines, and Text � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 53
How to Print Clear Photos � � � � � � � � � � � � � � � � � � � � � � � � 55
Getting Clear Texts and Lines from Your
Machine � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �60
Step 1 Eliminating the Basic Causes � � � � � � � � � � � � � � � � � � � � � � � 60
Step 2 Changing Print Settings for a Job with the
imagePRESS Server � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 61
How to Make Transparency Effects Work As
Expected � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 68
For RGB Color Mode � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 68
For CMYK Color Mode � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 69
How to Solve the Overprint Problems � � � � � � � � � � � � � 72
How to Fix Misalignment of Images � � � � � � � � � � � � � � � 75
Step 1 Eliminating the Basic Causes of Misalignment � � � � � � 76
Step 2 Changing Settings on the Machine According to
Paper Characteristics � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 78
Step 3 Changing Print Settings on the Printer Driver � � � � � � � 86
How to Fix Curled Printouts � � � � � � � � � � � � � � � � � � � � � �90
Step 1 Eliminating the Basic Causes of Curled Paper � � � � � � � 90
Step 2 Changing Settings on the Machine According to
Paper Characteristics � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 91
How to Align and Staple Printouts � � � � � � � � � � � � � � � �93
How to Adjust the Saddle Stitch Position � � � � � � � � � � 95
Step 1 Adjusting the Saddle Stitch Position to the
Center of the Booklet � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �95
Step 2 Adjusting the Saddle Stitch Fold Position to the
Center of the Booklet � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 97
Improving the Finish of Booklets � � � � � � � � � � � � � � � � � 98
Step 1 Confirming the Basic Settings � � � � � � � � � � � � � � � � � � � � � � 98
Step 2 Confirming the Position of Text and Images
on the Page � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 100
Step 3 Adjusting Margins with Creep Compensation � � � � � 102
Step 4 Checking the Cover Settings � � � � � � � � � � � � � � � � � � � � � � 103
How to Align Printouts � � � � � � � � � � � � � � � � � � � � � � � � � �108
Repeated Paper Jams Caused by Paper
Wrapping around the Fixing Belt � � � � � � � � � � � � � � � �110
Step 1 Understanding What Causes Paper to Wrap
around the Fixing Belt � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 111
Step 2 Keeping the Paper’s Moisture Content at an
Appropriate Level � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 112
Step 3 Changing the Machine’s Settings � � � � � � � � � � � � � � � � � � 112
Step 4 Try This If You Still Have the Same Problems � � � � � � � 115
Improving Productivity � � � � � � � � � � � � � � � � � � � � � � � � � �116
Choosing Paper Wisely � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 116
Speeding Up a Print Job by Using Thin Paper First � � � � � � � � � 117
Replacing a Toner Cartridge without Stopping the
Print Job � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 118
Increasing a Paper Loading Capacity by Giving
Priority to the Lower Tray � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 119
Using Auto Drawer Switching to Its Fullest � � � � � � � � � � � � � � � � 120
Increasing Print Speed by Giving Priority to Either
Thin Paper or Heavy Paper � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 125
Speeding Up a Print Job Manually When Printing on
Heavy 5/Heavy 6 Paper � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 126
Speeding Up a Print Job by Giving Priority to
Productivity Rather Than Gloss � � � � � � � � � � � � � � � � � � � � � � � � � � � � 127
Problems with Printouts That Look Like the
Following Images � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �128
Types of Paper You Can Use for Calibration
• The shape of the machine and available functions may vary, depending on the machine you are using� Unauthorized
reproduction of the contents of this document is prohibited�
• The information in this document is subject to change without notice�
• Available models differ depending on your region and product release dates�

2imagePRESS C850/C750/C650/C65 2
Recommended Types of Calibration
The density and tone of colors may change as you print
large volumes of pages� Even if you are printing the same
image, slight variations in the shades of colors may become
apparent� This is characteristic to this machine� You need
to calibrate the colors periodically to compensate for the
difference in colors� The following two types of calibration
can be done periodically� Refer to the following and select
the type of calibration that meets your needs�
If you want to calibrate the colors quickly and
easily*1Simple Calibration (p� 4)
If you want to calibrate the colors as precisely
as possible even if it takes time and effort Enhanced Calibration (p� 5)
If the environment of the location in which
you have installed the machine is outside the
recommended range*2
Enhanced Calibration (p� 5)
*1 You can select this type of calibration only if the environment in which the machine is installed is within the recommended range*2�
*2 For information on the environment (temperature and humidity) for installing the machine and storing paper, see the
Installation and Operating Environment Guidelines or the Specialty Media Handling Guide�
Simple Calibration Enhanced Calibration
or

Recommended Types of Calibration
3
imagePRESS C850/C750/C650/C65
Other Types of Calibration You Can Do When You Notice Variations in the
Shades and Tones of Colors
The following calibrations can be made in addition to
Simple Calibration and Enhanced Calibration� Calibrate
the machine only if you notice irregularities in the
colors� (You do not need to calibrate the machine on a
regular schedule�) Make sure to do automatic gradation
calibration prior to doing either one of the following
calibrations� If you are using the imagePRESS Server and
a spectrophotometer, such as an X-Rite i1 Pro, you can
make more precise corrections by doing both Shading
Correction and Automatic Color Tone Correction� In
this case, do these corrections in the following order:
Automatic Gradation Calibration → Shading Correction
→ Automatic Color Tone Correction�
Shading Correction
Do this if the color densities become uneven�
Automatic Color Tone Correction
Do this if you notice differences in the color tones�

4imagePRESS C850/C750/C650/C65 4
Simple Calibration
If you want to correct the printed colors quickly and easily, this type of calibration is recommended� Do steps 1 to
3 in "Calibration After the Machine Is in Operation" once a day� (p� 37) This is, however, done on the premise that the
environment (temperature and humidity) in which the machine is installed satisfies the recommended range� If the
environment does not satisfy this range, do "Enhanced Calibration�" (p� 5)
Prior to Starting Simple Calibration
See "Adjustment for Image Quality and Finishing
(Calibration)" > "Automatic Gradation Adjustment"
> "Changing Adjustment Level" in the User's Guide,
and set [Adjustment Level] for automatic gradation
adjustment to 'Same for All Paper Types'�

Recommended Types of Calibration
5
imagePRESS C850/C750/C650/C65
Enhanced Calibration
This type of calibration is recommended if you want to correct the shades and tones of colors as precisely as possible,
even if it takes more time and effort� This is also suitable if the environment (temperature and humidity) in which the
machine is installed does not satisfy the recommended range for some reason� This type of calibration uses specific
types of paper, which correspond to the types of paper you want to print on, so that more precise corrections can be
achieved� The paper is categorized in three groups, group A, B, and C, for the purpose of more precise calibration� See
the list in "Types of Paper You Can Use for Calibration" at the end of this document� Find out in which group the paper
you want to print on is categorized, and then select the corresponding type of paper you can use for calibration� To
keep making corrections precisely, calibrate the machine for the paper you are printing on whenever you print on
paper of a different group� For example, if you print on plain paper, which is listed in group A, in the morning, and print
on Heavy 5, which is listed in group B, in the afternoon, calibrate the machine for paper in group A (p� 6) before starting
printing jobs in the morning and calibrate the machine for paper in group B (p� 7) before starting printing jobs in the
afternoon�
Prior to Starting Enhanced Calibration
See "Adjustment for Image Quality and Finish
(Calibration)" > "Automatic Gradation Adjustment"
> "Changing Adjustment Level" in the User's Guide,
and set [Adjustment Level] for automatic gradation
adjustment to 'By Paper Type Group'� If you are not sure
of the name of the paper to use for calibration, contact
your local authorized Canon dealer�

6imagePRESS C850/C750/C650/C65 6
▀
Calibrating for Paper in Group A
1Load the paper for calibration for group A into the paper drawer�
• You can use the following type of paper to calibrate for paper in group A� You can also use the other type of
paper if you registered it to use for calibration in advance�
For the European and Asia-Pacific Regions
Canon Océ Top Colour Paper (100 g/m2)
For the American Region
Hammermill Color Copy Digital (28 lb� (105 g/m2))
2Press → [Adjustment/Maintenance] → [Adjust Image Quality] → [Auto Adjust Gradation] →
[Thin 1/Plain/Heavy 1-4]�
3Select the paper you loaded in step 1 for [Select Paper to Adjust]�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" >
"Selecting Paper for Calibration" in the User's Guide
4Do automatic gradation calibration (full calibration)�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" > "Full
Adjustment" in the User's Guide
5If you are using the imagePRESS Server, do steps 1 to 8 in "Calibrations on the imagePRESS
Server" in "Required Calibrations�" (p� 22)
• Do calibration on the imagePRESS Server using the following type of paper� You can also use the type of
paper that you want to use for printing if you registered it in advance�
For the European and Asia-Pacific Regions
Canon Océ Top Colour Paper (100 g/m2)
For the American Region
Hammermill Color Copy Digital (28 lb� (105 g/m2))

Recommended Types of Calibration
7
imagePRESS C850/C750/C650/C65
▀
Calibrating for Paper in Group B
1Load the paper for calibration for group B into the paper drawer�
• You can use the following type of paper to calibrate for paper in group B� You can also use the other type of
paper if you registered it to use for calibration in advance�
For the European and Asia-Pacific Regions
Canon Océ Top Colour Paper (250 g/m2)
For the American Region
Mohawk Options Navajo Smooth Brilliant White (90 lb� Cover (243 g/m2))
2Press → [Adjustment/Maintenance] → [Adjust Image Quality] → [Auto Adjust Gradation] →
[Heavy 5]�
3Select the paper you loaded in step 1 for [Select Paper to Adjust]�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" >
"Selecting Paper for Calibration" in the User's Guide
4Do automatic gradation calibration (full calibration)�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" > "Full
Adjustment" in the User's Guide
5If you are using the imagePRESS Server, do steps 1 to 8 in "Calibrations on the imagePRESS
Server" in "Required Calibrations�" (p� 22)
• Do calibration on the imagePRESS Server using one of the following types of paper� You can also use the
type of paper that you want to use for printing if you registered it in advance�
For the European and Asia-Pacific Regions
Type of paper you want to print on is Thick (221-256 gm2):
Canon Océ Top Colour Paper (250 g/m2)
Type of paper you want to print on is Coated (106-180 gm2):
OK Top Coat Plus (127�9 g/m2)
For the American Region
Type of paper you want to print on is Thick (221-256 gm2):
Mohawk Options Navajo Smooth Brilliant White (90 lb� Cover (243 g/m2))
Type of paper you want to print on is Coated (106-180 gm2):
OK Top Coat Plus (34 lb� (127�9 g/m2))

8imagePRESS C850/C750/C650/C65 8
▀
Calibrating for Paper in Group C
1Load the paper for calibration for group C into the paper drawer�
• You can use the following type of paper to calibrate for paper in group C� You can also use the other type of
paper if you registered it to use for calibration in advance�
For the European and Asia-Pacific Regions
Canon Océ Top Colour Paper (300 g/m2)
For the American Region
Hammermill Color Copy Digital Cover (100 lb� (271 g/m2))
2Press → [Adjustment/Maintenance] → [Adjust Image Quality] → [Auto Adjust Gradation] →
[Heavy 6]�
3Select the paper you loaded in step 1 for [Select Paper to Adjust]�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" >
"Selecting Paper for Calibration" in the User's Guide
4Do automatic gradation calibration (full calibration)�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" > "Full
Adjustment" in the User's Guide
5If you are using the imagePRESS Server, do steps 1 to 8 in "Calibrations on the imagePRESS
Server" in "Required Calibrations�" (p� 22)
• Do calibration on the imagePRESS Server using one of the following types of paper� You can also use the
type of paper that you want to use for printing if you registered it in advance�
For the European and Asia-Pacific Regions
Type of paper you want to print on is Heavy Thick (257-300 gm2):
Canon Océ Top Colour Paper (300 g/m2)
Type of paper you want to print on is Heavy Coated (181-300 gm2):
Futura Gloss Cover (271 g/m2)
For the American Region
Type of paper you want to print on is Heavy Thick (257-300 gm2):
Hammermill Color Copy Digital Cover (100 lb� (271 g/m2))
Type of paper you want to print on is Heavy Coated (181-300 gm2):
Futura Gloss Cover (100 lb� (271 g/m2))

Recommended Types of Calibration
9
imagePRESS C850/C750/C650/C65
▀
Calibrating for Paper in Group A and B
1Load the paper for calibration for group A and B into different paper drawers�
• You can use the following type of paper to calibrate for paper in each group� You can also use the other type
of paper if you registered it to use for calibration in advance�
For the European and Asia-Pacific Regions
For paper in group A: Canon Océ Top Colour Paper (100 g/m2)
For paper in group B: Canon Océ Top Colour Paper (250 g/m2)
For the American Region
For paper in group A: Hammermill Color Copy Digital (28 lb� (105 g/m2))
For paper in group B: Mohawk Options Navajo Smooth Brilliant White (90 lb� Cover (243 g/m2))
2Press → [Adjustment/Maintenance] → [Adjust Image Quality] → [Auto Adjust Gradation] →
[Thin 1/Plain/Heavy 1-4]�
3Select the paper you loaded for calibration for group A for [Select Paper to Adjust]�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" >
"Selecting Paper for Calibration" in the User's Guide
4Do automatic gradation calibration (full calibration)�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" > "Full
Adjustment" in the User's Guide
5Press [Heavy 5]�
6Select the paper you loaded for calibration for group B for [Select Paper to Adjust]�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" >
"Selecting Paper for Calibration" in the User's Guide
7Do automatic gradation calibration (full calibration)�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" > "Full
Adjustment" in the User's Guide

10 imagePRESS C850/C750/C650/C65 10
8If you are using the imagePRESS Server, do steps 1 to 8 in "Calibrations on the imagePRESS
Server" in "Required Calibrations�" (p� 22)
• Do calibration on the imagePRESS Server using one of the following types of paper� You can also use the
type of paper that you want to use for printing if you registered it in advance�
For the European and Asia-Pacific Regions
Type of paper you want to print on is Plain (52-220 gm2):
Canon Océ Top Colour Paper (100 g/m2)
Type of paper you want to print on is Thick (221-256 gm2):
Canon Océ Top Colour Paper (250 g/m2)
Type of paper you want to print on is Coated (106-180 gm2):
OK Top Coat Plus (127�9 g/m2)
For the American Region
Type of paper you want to print on is Plain (52-220 gm2):
Hammermill Color Copy Digital (28 lb� (105 g/m2))
Type of paper you want to print on is Thick (221-256 gm2):
Mohawk Options Navajo Smooth Brilliant White (90 lb� Cover (243 g/m2))
Type of paper you want to print on is Coated (106-180 gm2):
OK Top Coat Plus (34 lb� (127�9 g/m2))
▀
Calibrating for Paper in Group A and C
1Load the paper for calibration for group A and C into different paper drawers�
• You can use the following type of paper to calibrate for paper in each group� You can also use the other type
of paper if you registered it to use for calibration in advance�
For the European and Asia-Pacific Regions
For paper in group A: Canon Océ Top Colour Paper (100 g/m2)
For paper in group C: Canon Océ Top Colour Paper (300 g/m2)
For the American Region
For paper in group A: Hammermill Color Copy Digital (28 lb� (105 g/m2))
For paper in group C: Hammermill Color Copy Digital Cover (100 lb� (271 g/m2))
2Press → [Adjustment/Maintenance] → [Adjust Image Quality] → [Auto Adjust Gradation] →
[Thin 1/Plain/Heavy 1-4]�

Recommended Types of Calibration
11
imagePRESS C850/C750/C650/C65
3Select the paper you loaded for calibration for group A for [Select Paper to Adjust]�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" >
"Selecting Paper for Calibration" in the User's Guide
4Do automatic gradation calibration (full calibration)�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" > "Full
Adjustment" in the User's Guide
5Press [Heavy 6]�
6Select the paper you loaded for calibration for group C for [Select Paper to Adjust]�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" >
"Selecting Paper for Calibration" in the User's Guide
7Do automatic gradation calibration (full calibration)�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" > "Full
Adjustment" in the User's Guide
8If you are using the imagePRESS Server, do steps 1 to 8 in "Calibrations on the imagePRESS
Server" in "Required Calibrations�" (p� 22)
• Do calibration on the imagePRESS Server using one of the following types of paper� You can also use the
type of paper that you want to use for printing if you registered it in advance�
For the European and Asia-Pacific Regions
Type of paper you want to print on is Plain (52-220 gm2):
Canon Océ Top Colour Paper (100 g/m2)
Type of paper you want to print on is Heavy Thick (257-300 gm2):
Canon Océ Top Colour Paper (300 g/m2)
Type of paper you want to print on is Heavy Coated (181-300 gm2):
Futura Gloss Cover (271 g/m2)
For the American Region
Type of paper you want to print on is Plain (52-220 gm2):
Hammermill Color Copy Digital (28 lb� (105 g/m2))
Type of paper you want to print on is Heavy Thick (257-300 gm2):
Hammermill Color Copy Digital Cover (100 lb� (271 g/m2))
Type of paper you want to print on is Heavy Coated (181-300 gm2):
Futura Gloss Cover (100 lb� (271 g/m2))

12 imagePRESS C850/C750/C650/C65 12
▀
Calibrating for Paper in Group B and C
1Load the paper for calibration for group B and C into different paper drawers�
• You can use the following type of paper to calibrate for paper in each group� You can also use the other type
of paper if you registered it to use for calibration in advance�
For the European and Asia-Pacific Regions
For paper in group B: Canon Océ Top Colour Paper (250 g/m2)
For paper in group C: Canon Océ Top Colour Paper (300 g/m2)
For the American Region
For paper in group B: Mohawk Options Navajo Smooth Brilliant White (90 lb� Cover (243 g/m2))
For paper in group C: Hammermill Color Copy Digital Cover (100 lb� (271 g/m2))
2Press → [Adjustment/Maintenance] → [Adjust Image Quality] → [Auto Adjust Gradation] →
[Heavy 5]�
3Select the paper you loaded for calibration for group B for [Select Paper to Adjust]�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" >
"Selecting Paper for Calibration" in the User's Guide
4Do automatic gradation calibration (full calibration)�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" > "Full
Adjustment" in the User's Guide
5Press [Heavy 6]�
6Select the paper you loaded for calibration for group C for [Select Paper to Adjust]�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" >
"Selecting Paper for Calibration" in the User's Guide
7Do automatic gradation calibration (full calibration)�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" > "Full
Adjustment" in the User's Guide

Recommended Types of Calibration
13
imagePRESS C850/C750/C650/C65
8If you are using the imagePRESS Server, do steps 1 to 8 in "Calibrations on the imagePRESS
Server" in "Required Calibrations�" (p� 22)
• Do calibration on the imagePRESS Server using one of the following types of paper� You can also use the
type of paper that you want to use for printing if you registered it in advance�
For the European and Asia-Pacific Regions
Type of paper you want to print on is Thick (221-256 gm2):
Canon Océ Top Colour Paper (250 g/m2)
Type of paper you want to print on is Heavy Thick (257-300 gm2):
Canon Océ Top Colour Paper (300 g/m2)
Type of paper you want to print on is Coated (106-180 gm2):
OK Top Coat Plus (127�9 g/m2)
Type of paper you want to print on is Heavy Coated (181-300 gm2):
Futura Gloss Cover (271 g/m2)
For the American Region
Type of paper you want to print on is Thick (221-256 gm2):
Mohawk Options Navajo Smooth Brilliant White (90 lb� Cover (243 g/m2))
Type of paper you want to print on is Heavy Thick (257-300 gm2):
Hammermill Color Copy Digital Cover (100 lb� (271 g/m2))
Type of paper you want to print on is Coated (106-180 gm2):
OK Top Coat Plus (34 lb� (127�9 g/m2))
Type of paper you want to print on is Heavy Coated (181-300 gm2):
Futura Gloss Cover (100 lb� (271 g/m2))

14 imagePRESS C850/C750/C650/C65 14
▀
Calibrating for Paper in Group A, B, and C
1Load the paper for calibration for group A, B, and C into different paper drawers�
• You can use the following type of paper to calibrate for paper in each group� You can also use the other type
of paper if you registered it to use for calibration in advance�
For the European and Asia-Pacific Regions
For paper in group A: Canon Océ Top Colour Paper (100 g/m2)
For paper in group B: Canon Océ Top Colour Paper (250 g/m2)
For paper in group C: Canon Océ Top Colour Paper (300 g/m2)
For the American Region
For paper in group A: Hammermill Color Copy Digital (28 lb� (105 g/m2))
For paper in group B: Mohawk Options Navajo Smooth Brilliant White (90 lb� Cover (243 g/m2))
For paper in group C: Hammermill Color Copy Digital Cover (100 lb� (271 g/m2))
2Press → [Adjustment/Maintenance] → [Adjust Image Quality] → [Auto Adjust Gradation] →
[Thin 1/Plain/Heavy 1-4]�
3Select the paper you loaded for calibration for group A for [Select Paper to Adjust]�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" >
"Selecting Paper for Calibration" in the User's Guide
4Do automatic gradation calibration (full calibration)�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" > "Full
Adjustment" in the User's Guide
5Press [Heavy 5]�
6Select the paper you loaded for calibration for group B for [Select Paper to Adjust]�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" >
"Selecting Paper for Calibration" in the User's Guide
7Do automatic gradation calibration (full calibration)�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" > "Full
Adjustment" in the User's Guide

Recommended Types of Calibration
15
imagePRESS C850/C750/C650/C65
8Press [Heavy 6]�
9Select the paper you loaded for calibration for group C for [Select Paper to Adjust]�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" >
"Selecting Paper for Calibration" in the User's Guide
10 Do automatic gradation calibration (full calibration)�
"Adjustment for Image Quality and Finishing (Calibration)" > "Automatic Gradation Adjustment" > "Full
Adjustment" in the User's Guide
11 If you are using the imagePRESS Server, do steps 1 to 8 in "Calibrations on the imagePRESS
Server" in "Required Calibrations�" (p� 22)
• Do calibration on the imagePRESS Server using one of the following types of paper� You can also use the
type of paper that you want to use for printing if you registered it in advance�
For the European and Asia-Pacific Regions
Type of paper you want to print on is Plain (52-220 gm2):
Canon Océ Top Colour Paper (100 g/m2)
Type of paper you want to print on is Thick (221-256 gm2):
Canon Océ Top Colour Paper (250 g/m2)
Type of paper you want to print on is Heavy Thick (257-300 gm2):
Canon Océ Top Colour Paper (300 g/m2)
Type of paper you want to print on is Coated (106-180 gm2):
OK Top Coat Plus (127�9 g/m2)
Type of paper you want to print on is Heavy Coated (181-300 gm2):
Futura Gloss Cover (271 g/m2)
For the American Region
Type of paper you want to print on is Plain (52-220 gm2):
Hammermill Color Copy Digital (28 lb� (105 g/m2))
Type of paper you want to print on is Thick (221-256 gm2):
Mohawk Options Navajo Smooth Brilliant White (90 lb� Cover (243 g/m2))
Type of paper you want to print on is Heavy Thick (257-300 gm2):
Hammermill Color Copy Digital Cover (100 lb� (271 g/m2))
Type of paper you want to print on is Coated (106-180 gm2):
OK Top Coat Plus (34 lb� (127�9 g/m2))
Type of paper you want to print on is Heavy Coated (181-300 gm2):
Futura Gloss Cover (100 lb� (271 g/m2))

16 imagePRESS C850/C750/C650/C65 16
Getting the Best Colors from Your Machine
The density and tone of colors may change as you print large
volumes of the same pages, even if you are printing the same image,
slight variations in the shades of colors may become apparent� This
is characteristic to this machine� You need to calibrate the colors
periodically to compensate for the difference in colors�
NOTE
This section explains how to perform calibration using [Adjustment
Level] with 'Same for All Paper Types' for automatic gradation
calibration� For more information on [Adjustment Level] for
automatic gradation calibration, see "Adjustment for Image Quality
and Finishing (Calibration)" > "Automatic Gradation Adjustment" >
"Changing Adjustment Level" in the User's Guide�
Calibration after Purchase
The machine must be calibrated after you install it on your site� Use the following procedure to do the calibration�
Step 1 Required Calibrations (Calibrations on the Machine) (p� 19)
Step 2 Required Calibrations (Calibrations on the imagePRESS Server) (p� 22)
Step 3 Calibrating for Paper You Want to Use for Printing (Calibrations on the Machine) (p� 26)
Step 4
Calibrating for Paper You Want to Use for Printing (Calibrations on the imagePRESS Server) (p� 29)

Getting the Best Colors from Your Machine
17
imagePRESS C850/C750/C650/C65
Calibration After the Machine Is in Operation
After the activation, you need to perform calibration with the following frequency�
Every Day Calibration After the Machine Is in Operation (p� 37)
Calibration As Needed
If any of the following symptoms appear, perform calibration as needed�
Wrong Colors on Printouts Calibration As Needed (p� 38)
Calibration Order
If you perform multiple calibrations, perform in order as follows�
Every day Auto Gradation Adjustment
As necessary
Auto Color
Tone Correction Auto Color Tone Correction
Shading
Correction
Shading
Correction
Calibration on imagePRESS Server
NOTE
The machine automatically corrects the color density every time it prints a certain number of pages to maintain stable
gradations, densities, and shades of printed colors� When you print a large number of pages, you can increase the
frequency of density corrections to minimize changes in colors�
"Adjustment for Image Quality and Finishing (Calibration)" > "Gradation Adjustment During Printing" in the User's
Guide

18 imagePRESS C850/C750/C650/C65 18
Types of Paper You Can Use for Calibrating
You can use the following types of paper for calibration� If you want to use a different type of paper, you
need to register the paper on the machine and the imagePRESS Server before performing a calibration� See
"Calibrating for Paper You Want to Use for Printing" (p� 26) for the procedure�
For the European and Asia-Pacific Regions
Calibrating from the Machine
Canon Océ Top Colour Paper (100 g/m2)
Calibrating from the imagePRESS Server
• Type of paper you want to print on is Plain (52-220 gm2):
Canon Océ Top Colour Paper (100 g/m2)
• Type of paper you want to print on is Thick (221-256 gm2):
Canon Océ Top Colour Paper (250 g/m2)
• Type of paper you want to print on is Heavy Thick (257-300 gm2):
Canon Océ Top Colour Paper (300 g/m2)
• Type of paper you want to print on is Coated (106-180 gm2):
OK Top Coat Plus (127�9 g/m2)
• Type of paper you want to print on is Heavy Coated (181-300 gm2):
Futura Gloss Cover (271 g/m2)
For the American Region
Calibrating from the Machine
Hammermill Color Copy Digital (28 lb� (105 g/m2))
Calibrating from the imagePRESS Server
• Type of paper you want to print on is Plain (52-220 gm2):
Hammermill Color Copy Digital (28 lb� (105 g/m2))
• Type of paper you want to print on is Thick (221-256 gm2):
Mohawk Options Navajo Smooth Brilliant White (90 lb� Cover (243 g/m2))
• Type of paper you want to print on is Heavy Thick (257-300 gm2):
Hammermill Color Copy Digital Cover (100 lb� (271 g/m2))
• Type of paper you want to print on is Coated (106-180 gm2):
OK Top Coat Plus (34 lb� (127�9 g/m2))
• Type of paper you want to print on is Heavy Coated (181-300 gm2):
Futura Gloss Cover (100 lb� (271 g/m2))
* The names of the types of paper are subject to change� For more information, contact your local authorized Canon dealer�