Canon Cr-2 User Manual

							2 Safety
11
 CAUTION
Prohibited
Do not place your hands or fingers on the base
Your hand or fingers may be pinched and injured when the stage moves to either 
side.
Similarly, instruct the patient not to place the patient’s hands and fingers there.
Be sure to turn off the power before moving the CR-2
Before moving the CR-2, make sure that the power is turned off, the power plug is 
unplugged from the AC outlet, and any cables that are connected to other devices 
are disconnected.
Prohibited
Do not hold the face rest or digital camera when moving the 
CR-2
When carrying the CR-2, be sure to tighten the stage lock, hold the carrying 
indentations at the front and rear of the base panel, and keep the CR-2 level. Do not 
hold it by the digital camera or the face rest or any other parts, as they may come 
off and result in injury.
Hold the CR-2 when connecting or disconnecting a cable
When connecting or disconnecting the power cord or any cable, for safety reasons, 
be sure to hold the main unit. Otherwise, the main unit may fall over, possibly 
causing injury.
Ensure that the entire system conforms to IEC 60601-1-1
Use the computer, monitor, and other equipment that conform to the system 
standard IEC 60601-1 or IEC 60950-1 for the Digital Retinal Camera CR-2. Be sure 
that the entire system conform to IEC 60601-1-1. Be sure to also use an isolation 
transformer conforming to IEC 60601-1 when a computer or monitor conforming to 
IEC 60950-1 is used.
Otherwise, it may result in electric shock. For details, please contact a Canon 
representative or distributor.
Keep the forehead rest and chin rest clean
To prevent the risk of infection, wipe the forehead rest with ethanol solution or any 
other disinfectant whenever changing patients. To ensure cleanliness, replace the 
chin rest paper whenever the patient is changed. If the chin rest paper is not being 
used, be sure to disinfect the chin rest whenever the patient is changed.
For details on how to disinfect, consult a specialist. The forehead rest may be 
corroded if a disinfectant other than those above is used or if another disinfectant is 
added to ethanol. Consult a specialist in this case as well.
Slowly move the main unit towards the patient’s eye when 
taking an image
When adjusting the position of the main unit in the front-back direction, slowly bring 
the main unit closer to the patient while looking at the patient’s eye from the side.
The patient’s eye may be injured if the objective lens makes contact with it.
Check the image before using the CR-2
Before using the CR-2, be sure to take a test image to ensure that there is no foreign 
matter present that can affect image readings or diagnosis.  
						

							12
2 Safety
 CAUTIONBe sure to turn off the power when not in use
For safety reasons, be sure to turn off the power of all the devices when the CR-2 is 
not being used.
Also, unplug the power plug from the AC outlet and put on the cover when the CR-2 
is not going to be used for a long time.
Otherwise, dust or any foreign matter may accumulate and result in fire.
CAUTION
Prohibited
Do not touch the main unit and the chin rest while they are 
moving
The main unit and the chin rest move to the center position when the CR-2 main 
unit is turned on or a study is finished with the control software. Do not touch 
the main unit and the chin rest while they are moving. At the same time, keep the 
patient’s chin away from the chin rest.
Before packing the CR-2, return the main unit and chin rest to 
their initial positions
Lower the main unit and chin rest to the bottom. To automatically lower them, turn 
on the power while holding down the set button.
Inspect daily and regularly
Before using the CR-2, for safety reasons, be sure to perform the daily inspection.
Have a regular inspection performed for the CR-2 at least once a year at the 
representative designated by Canon.  
						

							2 Safety
13
Notes on Using CR-2 
Digital camera 
•	The attached digital camera is designed for the CR-2. The specifications differ from commercially 
available Canon digital cameras, so it can be used only for observing and taking photographs of 
peoples' eyes. Do not use the digital camera separately detaching from the main unit or it may 
cause failure on the CR-2.
•	 If any problems with the CR-2's digital camera occur or repairs are needed, contact the Canon 
representative or distributor from whom you purchased the CR-2. 
Before use 
•	Inspect the CR-2 every day, make sure that no foreign matter is present that can affect image 
readings or diagnoses. 
•	 Check and clean the objective lens before taking an image. Any stains or scratches on the 
objective lens will appear as white spots. 
•	 Sudden heating of a room during winter or in cold regions may cause condensation to form on the 
objective lens or on optical parts inside the CR-2. In this case, wait until condensation disappears 
before taking images. 
•	 Do not touch the lens part of the retinal camera or the mirror part of the digital camera when 
attaching and detaching the digital camera from the retinal camera. If any dirt, fingerprints, dust, or 
other foreign object is on the lens or mirror, you cannot take a good image. 
After use 
•	After using the CR-2, turn off the power, cover the objective lens with the objective lens cover to 
protect it from dust, and place the dust cover over the CR-2. You cannot take good images if the 
objective lens is dusty. 
•	 If the digital camera is detached and left unattached, dirt and dust may enter the retinal camera 
and the digital camera. Be sure to always attach the caps to the respective mounts.
Cleaning and disinfection 
•	Do not allow the blower to touch the lens. 
•	 Do not wipe or rub the lens if there is dirt or dust on it. Doing so could scratch the lens. 
•	 Do not wipe the lens with ethanol solution, eyeglass cleaner, or silicone-coated paper. Doing so 
could corrode the surface of the lens or leave streaks. 
•	 Do not clean the outside of the CR-2 with lens cleaner. Doing so could damage the outside of the 
CR-2. 
•	 Never use alcohol, benzine, thinner, or other solvents to clean the outside of the CR-2. Doing so 
damages the outside of the CR-2. 
•	 Never use ethanol solution to clean the outside of the CR-2, except the forehead rest and the chin 
rest. Doing so damages the outside of the CR-2. 
•	 If the chin rest paper is not being used, disinfect the chin rest for each patient in the same way as 
the forehead rest.   
						

							14
2 Safety
Environment of use 
•	Use, store, and transport the CR-2 in an environment that is within the range of the following 
conditions. 
Temperature  Humidity Atmospheric pressure 
Environment of use  10 to 35°C30 to 90% RH (no 
condensation)  800 to 1060 hPa
Storage and transportation 
environment  –30 to 60°C
10 to 60% RH (no 
condensation)  700 to 1060 hPa
•	 Do not install, store, or leave the CR-2 in a very hot or humid environment. Also, do not use the 
CR-2 outside. Doing so may cause a malfunction or misoperation. 
•	 Always try to keep the room as clean as possible. After many years of usage, airborne dust in the 
room may get on the objective lens as well as the optical parts in the main unit. You cannot take 
good images if dust is on the equipment. 
•	 When the CR-2 is not being used, attach the objective lens cap and place the dust cover over the 
CR-2.
Installation 
•	Ask the Canon representative or distributor from whom you purchased the CR-2 to install it. 
•	 A strong shock to the CR-2 may put it out of alignment. Please handle it carefully. 
Transportation 
•	Lower the main unit and chin rest to the bottom. To automatically lower them, turn on the power 
while holding down the set button.
•	 Be sure to turn off the CR-2's power switch, remove the AC plug from the outlet, and disconnect 
any cables connected to other equipment. 
•	 Align the stage with the base, and then lock the stage with the stage lock lever. 
•	 Carry the CR-2 by the indentations for lifting at its front and rear, and keep it level.
•	 Do not hold the face rest or digital camera when lifting the main unit. 
•	 The CR-2 needs to be protected from vibration and shocks when it is transported in a vehicle or 
over long distances. For details, contact the Canon representative or distributor from whom you 
purchased the CR-2.   
						

							2 Safety
15
Disposal 
Disposal of this product in an unlawful manner may have a negative impact on health and on the 
environment. When disposing of this product, therefore, be absolutely sure to follow the procedure 
which is in conformity with the laws and regulations applicable in your area. 
European Union (and EEA*) only
This symbol indicates that this product is not to be disposed of with your 
household waste, according to the WEEE Directive (2002/96/EC) and your national 
law. This product should be handed over to a designated collection point, e.g., 
on an authorized one-for-one basis when you buy a new similar product or to an 
authorized collection site for recycling waste electrical and electronic equipment 
(EEE). Improper handling of this type of waste could have a possible negative 
impact on the environment and human health due to potentially hazardous 
substances that are generally associated with EEE. At the same time, your 
cooperation in the correct disposal of this product will contribute to the effective 
usage of natural resources. For more information about where you can drop off 
your waste equipment for recycling, please contact your local city office, waste 
authority, approved WEEE scheme or your household waste disposal service.
For more information regarding return and recycling of WEEE products, please visit  
www.canon-europe.com/environment.
* EEA: Norway, Iceland and Liechtenstein
For California, USA Only
Included battery contains Perchlorate Material—Special handling may apply.
See http://www.dtsc.ca.gov/hazardouswaste/perchlorate/ for details.  
						

							16
2 Safety
Rating Label Display
The position and contents of the label attached on the CR-2 is shown below.
Follow the information on the label to use the CR-2 appropriately.
The following table describes the marks and indications on the rating label.
Alternating current
Type B
Class I device indicating manufacturer’s declaration of conformance 
with the Annex VII of the Medical Device Directive, 93/42/EEC
Certification mark that shows the product has passed the tests by 
TUV Rheinland of conformity with the medical device regulations in the 
European Union.
Product that WEEE directive, Directive on Waste Electrical and 
Electronic Equipment, 2002/96/EC, requires separate collection. The 
directive is effective in the European Union only.
 Certification mark that indicates the product complies with UL 60601-
1 and CAN/CSA 22.2 No. 601.1, that specifies protection against fire, 
electric shock, and mechanical hazards
Caution: Grounding reliability can only be achieved when the equipment 
is connected to an equivalent receptacle marked “HOSPITAL GRADE”. 
This caution applies to the USA only.
Caution: Federal law (USA) restricts this device to sale by or on the 
order of a physician.
Year and Month of Production Example: October 2010
Serial number in six digits   Example: 123456  
						

							17
Retinal Camera 
1
2
3
4
5
6
7
8
9
10
11 12
13
14
15
16
17
18
1 
Digital camera 
2  Digital camera cover 
3  Observation monitor
For viewing the anterior eye and retina. 
4 Power switch for the digital camera 
5  Operation lever 
6  Shutter release button
7  Alignment button
Switches between a view of the anterior eye and 
the retina. 
8 Main unit vertical movement ring
Turn right: Main unit moves up. 
Turn left: Main unit moves down. 
9 Focus ring
Turn to focus the image. 
10 Stage lock
11  Indentation for lifting 
12  Height adjustment mark 
13  Main unit 
14  Operation panel 
15  USB connector 
16  AC power connector 
17  Power switch for main unit 
18  Stage 
3
 Names of Parts  
						

							18
3 Names of Parts
19
20
21
23 22
25 24
26
27
d
c
b
a
19 Connector for external eye fixation lamp 
(with cap) 
Connector for the external eye fixation lamp (sold 
separately). 
20 Forehead rest
21  Objective lens 
22  Objective lens cap
23  Face rest 24 
Chin rest 
25  Indentation for lifting 
26  Diopter compensation knob 
a No diopter compensation 
b  Negative compensation 
c  Positive compensation 
d  Anterior eye photography 
27  Base   
						

							3 Names of Parts
19
Operation Panel 
3
5
4
1
2
8
7
6
1 Flash intensity button/lamp
+: Flash intensity increases. 
–: Flash intensity decreases. 
2 Observation light brightness button/lamp
+: Observation light brightness increases. 
–: Observation light brightness decreases. 
3 x2 photography button/lamp 
Enables x2 photography function. (See page 30) 
4 Small pupil photography button/lamp
Enables small pupil photography function. (See 
page 30) 
5 CHIN REST button
Top: Raises chin rest. 
Bottom: Lowers chin rest. 
6 FIX TARGET button
Move up, down, right, and left to move internal eye 
fixation lamp. 
7 Set button/lamp 
Internal eye fixation lamp blinks. 
8 POWER lamp 
Lights when power is turned on.   
						

							20
3 Names of Parts
Observation Monitor
During anterior eye observation 
6
5
1
3 2
4
During retinal observation (with x1.3 magnification) 
10
11
9
8 7
1
6
5 2
4
3
1 
Pupil alignment circles 
2  Photography ready lamp
Green: Ready to shoot 
Red: Not ready to shoot 
3 Observation light brightness indicator  4 
Left/right eye indicator 
R: Right eye 
L: Left eye 
5 Diopter compensation knob position 
indicator 
: Anterior eye photography 
6 Flash intensity indicator 
1  Indicator for top limit of position of main 
unit 
Appears when main unit has reached top limit. 
2 Focus indicator
3  WD guide (green) 
4  Indicator for bottom limit of position of 
main unit 
Appears when main unit has reached bottom limit. 
5 x2 photography indicator
6  Small pupil photography indicator 7 
x2 photography range 
8  Diopter compensation knob position 
indicator 
None: No diopter compensation 
+: Positive compensation 
–: Negative compensation 
9 Small pupil photography range 
10  Internal eye fixation lamp position indicator 
11  Focus lens position indicator