IDP-3535User’s Manual IMPORTANT SAFETY INSTRUCTIONS s Read all of these instructions and save them for later reference. S Follow all warnings and instructions marked on the product. S Unplug this product from the wall outlet before cleaning. Do not use liquid or aerosol cleaners. Use a damp cloth for cleaning. S Do not use this product near water.

S Do not place this product on an unstable cart, stand of table. The product may fall, causing serious damage to the product. S Slots and openings on the cabinet and the back or bottom are provided for ventilation. To ensure reliable operation of the product and to protect it form overheating, do not block or cover these openings. The openings should never be blocked by placing the product on a bed, sofa, rug of other similar surface. This product should never be placed near or over a radiator or heat register. This product should not be placed in a built-ininstallation unless proper ventilation is provided.

S This product should be operated from the type of power source indicated on the marking label. If you’re not sure of the type of power available, consult your dealer or local power company.

Citizen Idp 3535 Driver For Mac Download

S Do not allow anything to rest on the power cord. Do not locate this product where the cord will be walked on. S In an extension cord is used with this product, make sure that the total of the ampere ratings on the products plugged into the extension cord do not exceed the extension cord ampere rating. Also, make sure that the total of all products plugged into the wall outlet dose not exceed 15 amperes. S Never push objects of any kind into this product through cabinet slots as they may touch dangerous voltage points or short out parts that could result in a risk of fire or electric shock.

Never spill liquid of any kind on the product. S Except as explained elsewhere in this manual, don’t attempt to service this product yourself. Opening and removing those covers that are marked “Do Not Remove” may expose you to dangerous voltage points or other risks.

Refer all servicing on those compartments to service personnel. S Unplug this product from the wall outlet and refer servicing to qualified service personnel under the following conditions: A. When the power cord or plug is damaged or frayed B. If liquid has been spilled into the product. If the product has been exposed to rain or water. If the product dose not operate normally when the operating instructions are followed. Adjust only those controls that are covered by the operating instructions since improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the product to normal operation.

If the product has been dropped the cabinet has been damaged. If the product exhibits a distinct change in performance, indicating a need for service. IDP-3535User’s Manual IMPORTANT: This equipment generates, uses, and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual, may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protection against such interference when operated in a commercial environment.

Operation of this equipment in a residential area is likely to cause interference, in which case the user at his own expense will be required to take whatever measures may be necessary to correct the interference. CAUTION: Use shielded cable for this equipment. IDP-3535User’s Manual CONTENTS 1. 5 1-1Features.

5 1-2Accessories. Basic Specifications. 6 2-1Type classifications. 6 2-2Features.

External Appearance and Parts Descriptions. 8 3-1External Appearance and Parts names. 8 3-2Parts Descriptions. 11 4-1Inserting / Removing the Printer Cover. 11 4-2The Ribbon Cassette Installation. 12 4-3Loading and Changing the Paper.

13 Using Paper Roll. 13 Using Fan-foldPaper. 14 4-4Setting / Removing the Paper Cover and Stacker. 15 4-5Self Test Printing. 15 4-6Alarm and Paper Near-EndDetection. 15 4-7General Cautions. Serial Interface.

17 5-1Specifications. 17 5-2Connector Pin Assignment. 17 5-3Input / output Signals.

18 5-4Data Composition. 19 5-5Error Detection. Parallel Interface. 21 6-1Specifications. 21 6-2Connector Pin Assignment. 21 6-3Description of Input / Output Signals.

22 6-4Electrical Characteristics. 23 6-5Timing Chart. 25 7-1 Dip-Switch (DS-1)Setting. 25 7-2 Dip-Switch (DS-2)Setting. 26 7-3 Dip-SwitchLocation. 27 7-4Usage of the connectors (for cash drawers and paper winder). Print Control Functions.

31 8-1SI & SO Code. 31 8-2Function Code. 31 8-3Input Data Formats. Initial Setting.

Character Code Table. 36 11-1International Character Codes. 36 11-2Individual Country Character Codes.

External Dimensions. IDP-3535User’s Manual 1. Introduction The iDP 3535 is a dot impact printer which can be utilized for a wide range of applications, such data communications terminals, P.O.S. Terminals and kitchen printers. High speed performance is made possible by a bi-directionalprinting system and, since this printer is compact, lightweight and equipped with an abundance of functions, it can be easily employed for a variety of different tasks. Before using the printer, please read this manual carefully to be certain you have an adequate understanding of its operation.

1-1Features 1) Desktop compact dot impact printer. 2) High speed printing (Bi-directionalprinting system). 3) Black & Red 2 color printing and all black or purple printing. 4) Paper near-enddetection function. 5) Low power consumption.

6) Optional paper winder and cash drawer are available. 1-2Accessories 1) Paper roll 1 Pc. 2) Ribbon cassette 1 Pc. 3) Rear cover 1 Pc. (Friction model only) 4) Paper Stacker 1 Pc.

(Pin tracter model only) 5) User’s manual 1 Pc. IDP-3535User’s Manual 2-2Features Item iDP3535F iDP3535P 1 Print Method Bidirectional serial dot impact method. 2 Character 7 x 7 dots (Incl. Composition Character 23 columns: 230dot / line.

3 number 28 columns: 280dot / line. Per line 40 columns: 360dot / line. 23 columns: approx. 4.0 line / sec. 4 Print speed 28 columns: approx.

3.5 line / sec. 40 columns: approx.

3.0 line / sec. 23 columns: 1.8(W) x 2.4(H) mm 5 Character size 28 columns: 1.5(W) x 2.4(H) mm 40 columns: 1.36(W) x 2.4(H) mm 6 Line pitch 4.23 mm (1/6 inch) 7 Paper size 76±0.5(W) x 80( Dia.)mm.1.4 76-89(W) mm 3(W) x 3(Dia.)inch. 3.0-3.5(W) inch. 8 Interface P: Parallel interface (8 bit). R: Serial interface (RS-232C). Paper end When paper is near the end, 9 detector print operation is interrupted.

10 Ribbon cassette Two color (Black / Red) print. IR-61R /B.2 11 Paper winder and Winder: Option Ref.

To 3-2(8) Cash drawer Drawer: Solenoid 24V, 36 Ω or more. 12 Power voltage 120V ± 10% 60Hz (For United States).3 230V ± 10% 50 / 60Hz (For Europe). 13 Power Consump. 14 Operation temp. 0°C to 40°C / 32°F to 104°F. & humidity 10% to 85% RH.

Citizen Idp 3535 Driver For Mac Os

15 Storage temp.20°Cto 60°C 16 Net weight Approx. 2.8Kg (6.2ib) 17 External 160 (W) x 184 (D) x 173 (H) dimensions (without Knob and Rear cover Notes:.1 Paper weight of 45 kg refers to 1,000 sheets of 788 x 1,091 mm.2 Single color cassette ribbon is available as option. Black print: IR-61B Purple Print: IR-61P.3 Power voltage setting is performed at the factory.4 The diameter of the core of the roll paper should be 12 mm (internal) and 18 mm (external) and the core should not be glued.

IDP-3535User’s Manual 3-2Parts Descriptions (1) Power Cord Insert the plug end into an electric outlet. The socket-outletshould be installed near the equipment and should be easily accessible. (2) Power Switch Power is supplied to the printer by turning this switch on. (3) Power Lamp This lights up when the power switch is “ON” and goes out when turning “OFF”.

(4) SEL / ALARM Lamp This lights up when the printers is in SELECT state ( ON-LINE)and goes out when in DESELECT state (OFF-LINE). The printer can print out the data only when this lamp is on. This lamp may blink on the following occasions. 1) When the paper roll in coming to near-end,the SEL / ALARM lamp keeps blinking at interval of 1.0 second. In this status, if you want to print out the data in the input-buffer,press the SEL switch two times. First press is cleared an alarm condition (ALARM RESET) and then one line print will be done by second press. 2) When the printer is in alarm state, this lamp keeps blinking at interval of 1/4 second.

Remove the cause for alarm and press the SEL switch. (or re-switchthe power on). (5) LF Switch Paper feeding is performed when this switch is pressed (in DESELECT status only). This is used when inserting the paper and for spacing up etc.

(6) SEL Switch When this switch is pressed, the printer enters SELECT (ON-LINE)status. When pressed again, the printer enters DESELECT (OFF-LINE)status.

This switch is also used when clearing an alarm condition. (7) I / F Connector Connects through a cable to a computer etc.

Please be certain that power to both the printer and the computer are turned off when connection is made. (8) Cash Drawer or Paper Winder Connector To be used to control the P.O.S. Cash drawer or paper winder by DIP SWITCH setting (Ref.7-1). When this connector is used for each drawer solenoid voltage 24V, register over 36, for paper winder, use CBM model AW-3.

Connector Pin Assignment Pin No Signal Name Function 1 Vp DC24V, 0.8A or less 2 VL Solenoid 3 PG GND 4 PG GND Connector: Printer side: 5045-04A(MOLEX). IDP-3535User’s Manual 4-2The Ribbon Cassette Installation To insert a ribbon, disconnect the power source beforehand. When the printer has been printing for many hours, be careful not touch printer head as it might be hot. 1) Remove the printer cover 2) While inserting the ribbon into the space between the print head and the ribbon guide, press the cassette into the holder unit until it clicks into place. 4&5) 3) Turn the cassette ribbon knob in the direction of the arrow to take up slack in the ribbon. IDP-3535User’s Manual Using Fan-foldPaper 1) Remove the printer cover.

2) Set the imprint face of the paper down ward and put into the paper entrance. 3) If necessary to adjust the sprocket-wheel’sposition, free the wheels using the lever on both side. Slide them to the appropriate position, and lock them back.

4) Hook some of the paper’s perforations on the sprockets and forward the paper into the printer mechanism by pulling and turning the paper-feedknob until the paper’s tip reaches the platen. 5) The unlock the levers of the sprocket and match the marks (3 or 3.5 inches) with the width of the paper.

Then lock them back. IDP-3535User’s Manual 4-4Inserting / Removing the Paper Cover and Stacker 1) Inserting and removing the paper cover and the stacker as shown in Fig. 2) Capacity of stacker The maximum size of fun-foldpaper sheet which can be stored in this stacker is 3 to 3.5 (W) x 6 (H) x 1.6 (D) inches. 10 4-5Self Test Printing Your printer has a built in self print function for purpose of checking print operation without the need for any other external device. Procedures for Actuating the Print Function 1) Be sure that a paper roll is properly loaded.

2) Confirm that the Ribbon cassette is properly installed and turn the power switch off. 3) Turn the power switch ON while pressing the LF switch, and release the LF switch after the self test operation has begun. In the above operation, the self print function will stop automatically when completed. However, the self print function will not operate without paper. 4-6Alarm and Paper Near-EndDetection This printer has the paper near-endsensor to stop the operation when the paper comes to near-end,sending out both BUSY and FAULT signals. This status is indicated by the SEL / ALARM lamp blinking at an interval of 1.0 second.

If the printer goes alarm, the printer stops printing out and outputs FAULT signal – OFF-LINEstate. This status makes the SEL / ALARM lamp blink at an interval of 1/4 second. IDP-3535User’s Manual 4-7General Cautions 1) Never operate your printer without loading paper and ribbon cassette. Any printing without paper and ribbon cassette may cause damage to printer head. 2) Replace ribbon cassette before it is worn with rents. 3) Be careful not to drop any foreign matters, such as paper clips, pins and the like into your printer.

These can cause mechanical trouble. 4) Nothing shall be placed on the ventilation vents of the printer. 5) Always place your printer on a stable desk which is set horizontal. 6) No organic solvent (thinner, benzene or the like) should be used in cleaning the surface of the main body case. 7) Make sure that the power of the printer is turned off whenever you do the following.

(1) Taking out any foreign matter which was dropped into the printer. (2) Replacing the ribbon cassette. 8) Please use Cash Drawer connector (CN 6) for drive Cash Drawer only.

For U-type(USA type) Do not use Paper winder and Cash Drawer with connectors (CN 6-2and CN 3-2)at the same time. USAGE OF THE CONNECTORS, PLEASE SEE PAGE 18 AND 19. IDP-3535User’s Manual 5-4Data Composition 1 Start bit 2 Data bits (and parity bit) 3 Stop bit (1 bit more) 1) Start bit 1/2 bit past the line dropping from MARK to SPACE, a status reading is taken again. If the reading is SPACE, a start bit is recognized. 2) Data bits and Parity bit Data bit and Parity bit are checked out every bit form the half point of start bit.

Signal level of these points (Mark = 1, Space = 0) are read as input data. The sequence of these bit is Bit 0, Bit 1 Parity bit from Start bit. 3) Stop bit The stop bit consists of one or more bits at “mark” level. When “space” level is detected for a stop bit, a framing error occurs. IDP-3535User’s Manual 5-5Error Detection The printer detects Parity, Framing and Overrun Error. When any error is detected, the data is printed out as (7FH). Framing Error; Framing error occurs when SPACE signal is checked out at STOP BIT and the printer print out (7FH).

Parity Error; Parity check is carried out only when user designates it on the printer pre-setting. Input Control and Buffering; (over-run-error) The printer is designed to output DTR signals for each word. If the host computer neglects DTR signal and transmits the data, it may cause the “OVER-RUNERROR”. In order to avoid such case, set up the host computer to observe DTR signals from the printer by following the connector pin assignments described in 5-2. Other errors When an error is detected at the printer mechanism, SEL / ALARM light is flickered. FAULT signal becomes SPACE states, DTR signal becomes BUSY status.

Then printer becomes OFF LINE. After the error is corrected, SEL / ALARM light becomes off by pushing SEL switch. The reception of data is resumed when SEL switch is pushed again. IDP-3535User’s Manual 6. Parallel Interface 6-1Specifications 1) Data Input System: 8 bit parallel (Data 1-8) 2) Control Signal: ACK, BUSY, STB, FAULT, RESET(OPTION) 3) Compatible Connector: Printer side, Equivalent to AMPHENOL 57-40360: Cable side. Equivalent to AMPHENOL 57-30360 6-2Connector Pin Assignment Pin No.

Signal Name Pin No. Signal Name 1 STB 19 Twisted Pair GND 2 Data 1 20 “ 3 Data 2 21 “ 4 Data 3 22 “ 5 Data 4 23 “ 6 Data 5 24 “ 7 Data 6 25 “ 8 Data 7 26 “ 9 Data 8 27 “ 10 ACK 28 “ 11 BUSY 29 “ 12 GND 30 13 +5V Level 31 RESET (OPTION) 14 GND 32 FAULT 15 GND 33 16 GND 34 17 Frame GND 35 18 36. IDP-3535User’s Manual 6-3Description of Input / Output Signals 1. Input / Output Signals Input Signals (To Printer) DATA 1: 8 bit signal (Positive logic) DATA 2: 8 bit signal (Positive logic) DATA 3: 8 bit signal (Positive logic) DATA 4: 8 bit signal (Positive logic) DATA 5: 8 bit signal (Positive logic) DATA 6: 8 bit signal (Positive logic) DATA 7: 8 bit signal (Positive logic) DATA 8: 8 bit signal (Positive logic) STB: A strobe signal for reading in 8 bit data. (Negative logic) RESET: RESET signal. (Negative logic) Output Signals (From Printer) ACK: This is pulse signal for requesting 8 bit data, issued at the end of a BUSY signal.

(Negative logic) BUSY: This signal indicated that your printer is in a BUSY state. New data should be input when this signal is “LOW”. (Positive logic) FAULT: When your printer is in an alarm state, this signal is “LOW”. At this time, all control circuit of your printer are interrupted. (Negative logic). IDP-3535User’s Manual 7. Dip-SwitchSetting 7-1 Dip-Switch (DS-1)Setting No.

Function ON OFF Factory Setting to chose SEL / DSEL 1 State SELECT DESELECT OFF (when powered on) 2 to chose CR code CR + LF CR only OFF functions 3 to chose Character (Japanese) International OFF Table 4 to chose Character - see the table below - OFF 5 Table by the Country OFF 6 to chose output signal Paper Cash OFF for external device Winder Drawer 7 - not used - OFF 8 - not used - OFF No. FRANCE GERMANY ENGLAND 4 OFF ON OFF ON 5 OFF OFF ON ON. IDP-3535User’s Manual 7-2 Dip-Switch (DS-2)Setting (only for Serial Interface) No. Functions ON OFF Factory Setting 1 to chose Word's Length 7 bit 8 bit OFF 2 Parity Checking No Yes ON 3 Parity Checking Even Odd OFF 4 Baud rate - see the table below - OFF 5 Setting ON 6 On-LineMode.1 DC3 DC3 OFF LF code DESELECT code 7 - not used - OFF 8 - not used - OFF Baud rate Selection No.

1200 2400 4800 9600 4 OFF ON OFF ON 5 OFF OFF ON ON.1 Your iDP3535 Dot Matrix Printer (Serial Interface model only) has been upgraded to provide you with a new feature is called ‘OLMODE’ or ON - Line Mode. In this mode, the SEL (select) switch on the operator panel is not used and the printer is always in the ‘SEL’ (selected) or ON – Line Mode.

Also, the LF (linefeed) switch on the operator panel will function while the printer is this mode, even when the printer is in the ‘SEL’ (selected) Mode. This feature is activated by placing the Dip Switch DS-2,Number 6 in the ‘ON’ position.

IDP-3535User’s Manual 7-4Usage of the connectors (for cash drawers and paper winder) L1: external device 1 L2: external device 2 CN3: connector for cash drawer and paper winder. PIN SIGNAL FUNCTIONS 1 Vp DC24V, 0.8A Max 2 DR 1 External device 1 3 FG Frame GND 4 FG connector Printer side: 5045-04A(molex) Cable side: 5209-04(molex) CN6: connector for cash drawers. PIN SIGNAL FUNCTIONS 1 FG Frame GND 2 DR 1 External device 1 3 Vp DC 24V 4 Vp DC 24V 5 DR 2 External device 2 6 NC Not connected connector Printer side: 285D-9660J-101(DDK) Cable side: 285D-1660P(DDK). IDP-3535User’s Manual Usage of the DIP switch Type Preset JP. Paper Cash Connector Command JP 1 JP 2 JP 3 DIP 1-6 Winder Drawer (PIN) Code (HEX) E type ON OFF ON ON L1(AW-3) - CN 3-2 LF (0A) - L2 CN 6-2.5 SUB (1A) OFF - L1 CN 3-2 BELL (07) - L2 CN 6-2.5 SUB (1A) U-type ON ON OFF ON L1(AW-3) - CN 3-2.1 LF (0A) CN 6-2 - L2 CN 6-5 SUB (1A) OFF L1 CN 3-2.1 BELL (07) CN 6-2 -L2 CN 6-5 SUB (1A).1. Do not connect External Device L1 (Drawer and Winder) to the connectors CN3-2and CN6-2at the same time. Note: 1) External device 1 and 2 can not be driven at the same time.

In case the device is driven continuously, the duty note should be less than 20%. 2) The resistance of L1, L2 should be more than 36 Ω. 3) Paper winder (AW-3)and cash drawer are option. IDP-3535User’s Manual For U-typeonly (USA type) Your iDP3535 is equipped to drive up to 2 external device – Paper Winder and / or Cash Drawers. The 4 pin molex connector and the first driver of the modular connector (pins 2 & 3) are shared by the same driver and only one device can be connected to this driver. Acceptable combinations of configurations are: A) No external devices connected.

B) One Cash Drawer connected to 4-pinmolex connector. Set DIPI-6OFF. C) One Paper Winder connected to 4-pinmolex connector. Set DIPI-6ON. D) One Cash Drawer connected to Modular Connector Drive 1 pins 2 & 3. Set DIPI-6OFF.

(Note that the 4-pinmolex connector cannot be used.) E) Two Cash Drawers connected – Drawer 1 connected to 4-pinmolex connector – Drawer 2 connected to Modular connector Drive 2 pins 4 & 5. Set DIPI-6OFF. (Note that the Modular Connector Drive 1 pins 2 & 3 can not be used.) F) Two Cash Drawers connected – Drawer 1 connected to Modular connector Drive 1 pins 2 & 3. Drawer 2 connected to Modular connector Drive 2 pins 4 & 5. Set DIPI-6OFF. (Note that the 4-pinMolex Connector cannot be used.) G) One Cash Drawer and One Paper Winder connected.

Paper Winder connected to 4-pinmolex connector Drawer 2 connected to Modular connected Drive 2 pins 4 & 5. Set DIPI-6ON. (Note that the Modular Connector Drive 1 pins 2 & 3 cannot be used.). IDP-3535User’s Manual 8.

Print Control Functions 8-1SI & SO Code Symbol Code (Hex.) 8 bit data 7 bit data SI 0F Standard character Designation of SI side designation (Same as US) character SO 0E Double-widthcharacter Designation of SO side designation (Same as RS) character 8-2Function Code Symbol Code (Hex.) Function LF 0A Feeds a new line after printing. Feeds a new line after printing. You can select CR function CR 0D in accordance with your computer's output. For details, refer to 7. Function select by Dip-switches. RS 1E Enhanced character designation.

The designation is released with US code or line feed. US 1F Standard character designation. FF 0C Carries out from feed performance after printing. DC 1 11 Makes the printer SELECT (ON LINE) state. Only this code can be accepted irrespective of DESELECT (OFF LINE) state.

DC 2 12 Red printing is specified / released. Designation / release (alternative) of red one line printing is possible with this code.

DC 3 13 Makes the printer DESELECT (OFF LINE) state. CAN 18 Clears the print data in the buffer.

All the previous input data is cleared with this code. ESC + 'C' 1B, 43 Page length designation and paging action. Ref.to 8-3(4). ESC + '0' 1B, 4F Paging is off. BEL 7 Control command for cash drawer 1 Ref.to 8-3(7). SUB 1A Control command for cash drawer 2 Ref.to 8-3(8). IDP-3535User’s Manual 8-3Input Data Formats The data input to the printer is made by the codes listed in the Character Code Table.

(1) Standard Character Print Mode Designation. US (1F) DATA LF (0A) The printer goes automatically to the standard character mode immediately after power-oninitialization or line feed. Therefore, US code can be omitted. In addition, an automatic line feed is carried out after inputting the data for one line (Full Buffer Print). The same function as US code is performed by using SI code (except for serial 7 bit data use). (2) Double-WidthCharacter Print Mode Designation RS (1E) DATA LF (0A) All print data following RS code are printed out in double-widthsize and this code can be released by US code. It is possible to mix the characters in normal width and double width on one line.

However, because a double-widthcharacter requires twice the normal width, take care not to exceed the column capacity of the printer. When the input data become full to fill one line, the Full Buffer Print and one line feed will be automatically carried out. RS code will be automatically cancelled after each line feed. The same function as RS is performed by SO code (except for serial 7 bit data use).

(3) Red Color Print Mode Designation DC (12) DATA LF (0A) All print data including DC2 are printed in red color and it’s not possible to mix the black and red color characters on one line. This command will be automatically canceled after the line feed. If DC2 commands are used 2 times on the same line by error, the printer will print out all characters in black color. (4) Paging Designation and Page Length Designation ESC (1B) C (43) n Input ESC + “C” (1B 43) at the top of the line and next input n, which are integers.

With this code, the length (number of lines) per page can be set, and paging action is started, and the space of three lines are left at the both top and bottom of the page, n should be;14 ≤ n ≤ 120 Otherwise, it will be 66. The paging can be released by ESC + “0” (1B,4F). IDP-3535User’s Manual (5) Form Feed FF(0C) With this code, paper feed goes on. If there is data in the buffer when this code is input, the printer does from feed printing. The top of form for the next page is made in accordance with the page length which was specified with ESC + “C” + “n”. Top of position of the page is determined when power is turned on or when page length is specified with ESC + “C” + “n”. (6) Canceling CAN(12) All the data in one line prior to CAN are cleared entirely with this code.

(7) Cash drawer control BEL(07) Command to drive the drawer port 1 for 0.2 second period. DIP switch DS-1is selected for drawer. (8) Drawer 2 control SUB(1A) With this code, the drawer port 2 is driven for 0.2 second period. The drawer command can be set at any place in one line.

In case the data are stored in the print buffer when the command is recognized, the command is executed after the contents of the buffer are printed. In case the data are not stored in the buffer, the command is executed immediately. IDP-3535User’s Manual 10. Maintenance 10-1Maintenance Procedures It is recommended that users perform periodic cleaning of their printer. (1) Exterior The exterior case of the printer can be cleaned with alcohol.

Care should be taken to keep water from reaching the electronic parts and the printing mechanism. (2) Interior There is no particular requirement, however, when the printer case is opened to change settings etc., dust and other foreign matter may be removed from the printer mechanism and circuit boards with a soft brush. Special care should be taken to avoid damage to electronic parts and wiring. Furthermore, be sure to disconnect the power plug from the electric outlet before opening the printer case.