Epson MX-80 Operation Manual
Epson MX-80 - Impact Printer Manual
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- Epson MX-80 | Operation Manual - Page 1
MX-80 EPSON DOT MATRIX PRINTER TYPE II Operation Manual EPSON P8190014-2 - Epson MX-80 | Operation Manual - Page 2
OF MX-80 TYPE II 3 1. Unpacking 3 1.1. Unpacking steps 3 1.2. Repacking steps 3 2. Counting the Parts 3 3. Installation of the Printer 5 4. Cartridge Ribbon Setting 8 5. Separator Installation 10 6. Paper Loading 10 6.1. Loading of fanfold paper 10 6.2. Removal of fanfold paper 13 - Epson MX-80 | Operation Manual - Page 3
sequence of functional specifications 4 8 WHAT IS THE MX-80 TYPE II 52 1. What Is a Dot Matrix Printer 52 2. Definitions of Some Terms Often Used 54 3. Control Codes in the Text Mode 56 3.1. Print action codes 57 3.2 Paper formatting codes 58 3.3. Character designation codes 63 3.4. Other - Epson MX-80 | Operation Manual - Page 4
Fig. 1 EPSON MX-80 Type II and MX-80 F/T Type II Dot Matrix Printers ... 1 Fig. 2 Contents of Carton 4 Fig. 3 Laying Printer on Firm Surface 5 Fig. 4 Assembly Tools 6 Fig. 5 Removal of Shipping Screws 7 Fig. 6 Removal of Printer Lid 7 Fig. 7 Remounting of Printer Lid 8 Fig. 8 Cartridge Ribbon - Epson MX-80 | Operation Manual - Page 5
Paper Out Status Release Procedure 39 Fig. 50 Removing Manual Paper Feed Knob 41 Fig. 51 Loosening All 4 Screws 41 Fig. 52 Pulling Out Wires Hooked to Control Panel 42 Fig. 53 Construction of Type II Printer Fig. 60 Dot Wire 53 Driver Circuit Diagram ..... Fig. A2-1 Parallel Interface Timing ........ - Epson MX-80 | Operation Manual - Page 6
LIST OF TABLES T a b l e 1 I n t e r f a c e S i g n a l s i n P a p e r - O u t S t a t u s 39 Table 2 Functions and Conditions of DIP Switch No. 1 4 5 Table 3 Character Size and Maximum Column Length 4 6 Table 4 Functions and Conditions of DIP Switch No. 2 46 Table 5 International Character - Epson MX-80 | Operation Manual - Page 7
is common to both will be described. *Bit Image printing refers to the hard-copy production of illustrations, graphs, charts, etc., on the Printer by activating 8 dot wires respectively u n d e r s o f t w a r e control. Fig. 1 EPSON MX-80 Type I I and MX-80 F/T Type I I Dot Matrix Printers -1- - Epson MX-80 | Operation Manual - Page 8
Characteristics The MX-80 Type II and MX-80 F/T Type II have been designed as a printer with versatile 100 x 106 characters. (6) 8 international character sets are selectable by DIP switch setting or software. (7) Complete with standard equipment including paper end detector, custom cartridge ribbon - Epson MX-80 | Operation Manual - Page 9
are as follows: STEP 1. Open the carton. STEP 2. Remove accessories. STEP 3. Remove the MX-80 Type I I holding its underside and lifting it straight up with the packing material attached. STEP4. Place the Printer with the packing material on a table or any other convenient flat surface. STEP 5. Take - Epson MX-80 | Operation Manual - Page 10
1. MX-80 Type I I Dot Matrix Printer 1 2. Separator 1 3. Cartridge Ribbon 1 4. Power Cord (Only European Type 220/240V) 1 5. MX-80 Type I I Operation Manual 1 Fig. 2 Contents of Carton -4- - Epson MX-80 | Operation Manual - Page 11
(1) Operating site selection When installing the MX-80 Type I I, observe the following instructions. (a) Place the Printer on a bench, tabletop or any other convenient flat surface with enough room for the separator in the back of the Printer. Your layout may look like Fig. 3. NOTE: Rubber feet - Epson MX-80 | Operation Manual - Page 12
end detector The MX-80 Type II is provided with a protective paper inserted between the inner and outer paper guides to protect the paper end detector from damage due to shocks or vibrations during transportation. Before using the Printer, be sure to remove this paper. If the MX-80 Type II is to - Epson MX-80 | Operation Manual - Page 13
the two shipping screws for possible future use. < SUPPLEMENT > l If the printer lid is an obstacle when removing the shipping screws, be sure to take off the printer lid by observing the following steps. Rough or careless handling of the printer lid may result in damage to, or even breakage of, its - Epson MX-80 | Operation Manual - Page 14
Remounting of Printer Lid 4. Cartridge Ribbon Setting EPSON's Cartridge Ribbon is compact, long-lasting, and very easy to set and remove. Furthermore, you have no need to soil your fingers in handling it. STEP 1. Open the printer lid (or remove it). STEP 2. Confirm that the scale (paper retainer) is - Epson MX-80 | Operation Manual - Page 15
of the arrow (i.e., counterclockwise) while depressing the ribbon with a ball-point pen. Then, tension the ribbon by turning the ribbon feeding knob counterclockwise. (See Fig. 9.) I Fig. 9 Cartridge Ribbon Setting NOTES: 1. Incorrect setting of the ribbon may cause it to come off. (See Fig - Epson MX-80 | Operation Manual - Page 16
paper The MX-80 Type II Printer accommodates fanfold paper from 4" to 10" in width. To load the fanfold paper, observe the following procedure. STEP 1. Raise the printer lid. STEP 2. Turn the scale toward the front of the Printer and detach it from the platen. STEP 3. Confirm that the paper guide - Epson MX-80 | Operation Manual - Page 17
Fig. 12 Insertion of Fanfold Paper STEP 5. STEP 6. Push the paper into the insertion slot between the paper guides at the rear part of the printer mechanism. NOTE: Be sure to pass the paper beneath the upper paper guide. After the leading edge of the paper has emerged from the Printer, pull it out - Epson MX-80 | Operation Manual - Page 18
7. Raise the two sprocket lock levers to loosen, and adjust the sprocket pin position to the paper width. (See Fig. 13.) Fig. 13 Raising of Sprocket Lock Levers STEP 8. Engage the paper feed holes of the paper on the feeding pins, push the scale back into position, and adjust the tension of the - Epson MX-80 | Operation Manual - Page 19
STEP 9. Put the printer lid on the Printer. Fig. 15 Printer with Fanfold Paper Set Completely NOTE: When the MX-80 Type II is to be used on a desk or a bench, arrangement of the fanfold paper in parallel with the MX-80 Type II as shown below will permit the paper to be folded in an accordion style. - Epson MX-80 | Operation Manual - Page 20
by turning the manual paper feed knob. At this point, turn the Power Switch on and the Printer will recognize this position as the Top of Form position. Now, the printing can be started from the Top of Form position. In case of feeding one page of fanfold paper by operating the MX-80 Type II by - Epson MX-80 | Operation Manual - Page 21
direction) by one step. (See Fig. 18.) (4) When a set of carbon paper sheets is used, be sure that no characters are printed within the area two lines each above and below the perforation. 8. Power Connection The EPSON MX-80 Type II Dot Matrix Printer is capable of operating on the following three - Epson MX-80 | Operation Manual - Page 22
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are as follows: STEP 1. Open the carton. STEP 2. Remove accessories. STEP 3. Remove the MX-80 F/T Type I I by holding its underside and lifting it straight up with the packing material attached. STEP 4. Place the Printer with the packing material on a table or any other convenient flat surface. STEP - Epson MX-80 | Operation Manual - Page 24
1. MX-80 F/T Type II Dot Matrix Printer 1 2. Separator 1 3. Cartridge Ribbon 1 4. Power Cord (Only European Type 220/24OV) 1 5. MX-80 F/T Type I I Operation Manual 1 Fig. 19 Contents of Carton 3. Installation of the Printer (1) Operating site selection When installing the MX-80 F/T Type I - Epson MX-80 | Operation Manual - Page 25
sources such as heater, etc. Fig. 20 Laying Printer on Firm Surface (2) Removal of protective paper for paper end detector The MX-80 F/T Type II is provided with a protective paper inserted between the inner and outer paper guides to protect the paper end detector from damage due to shocks or - Epson MX-80 | Operation Manual - Page 26
any damage that may be caused by shocks or vibrations during transportation. Therefore, before operating the MX-80 F/T Type II, remove the screws as described below. (See Fig. 22.1 STEP 1. Stand the printer on its left side. STEP 2. Remove with a screwdriver, the two shipping screws visible on the - Epson MX-80 | Operation Manual - Page 27
STEP 1. STEP 2. Stand the printer lid upright. Push the printer lid toward the right and pull up its left side. (See Figs 23 (1) and (2).) NOTE: The printer lid shown in Fig. 23 (2) is an Optional accessory. -21- - Epson MX-80 | Operation Manual - Page 28
4. Cartridge Ribbon Setting EPSON's Cartridge Ribbon is compact, long-lasting, and very easy to set and remove. Furthermore, you have no need to soil your fingers in handling it. STEP 1. Open the printer lid (or remove it). STEP 2. Confirm that the scale (paper retainer) is turned toward the platen - Epson MX-80 | Operation Manual - Page 29
See Fig. 26.) 2. Confirm that the ribbon is neither twisted nor creased and that the cartridge is set properly. Fig. 26 Examples of Correct and Incorrect Ribbon Setting 5. Separator Installation The separator of the Printer contributes to smooth paper feeding. Set the separator by inserting its edge - Epson MX-80 | Operation Manual - Page 30
6. Dismounting of Tractor Unit The tractor unit of the MX-80 F/T Type I I is detachable. If it is an obstacle when using roll paper, it can be taken out as follows; STEP 1. Release the lock levers of the tractor unit by pulling in the direction as shown in Fig. - Epson MX-80 | Operation Manual - Page 31
Loading 7.1. Fanfold paper 7.1.1. Loading of fanfold paper The MX-80 F/T Type I I Printer accommodates fanfold paper from 4" to 10" in width. To load the fanfold paper, observe the following procedure. STEP 1. Raise the printer lid. STEP 2. Unlock the release lever by pulling it in the direction - Epson MX-80 | Operation Manual - Page 32
to loosen, and adjust the sprocket pin position to the paper width. (See Fig. 31.) STEP 6. Engage the paper feed holes of the paper on the feeding pins, push the scale back into position, and adjust the tension of the paper. Then push the paper holding covers and the two sprocket lock levers down - Epson MX-80 | Operation Manual - Page 33
STEP 10. Put the printer lid on the Printer. (See Fig. 33.) NOTE: When the MX-80 F/T Type I I is to be used on a desk or a bench, arrangement of the fanfold paper in parallel with the MX-80 F/T Type II as shown below will permit the paper to be folded in an accordion style. 7.1.2. Removal of fanfold - Epson MX-80 | Operation Manual - Page 34
the manual paper feed knob. At this point, turn the Power Switch on and the Printer will recognize this position as the Top of Form position. Now, the printing can be started from the Top of Form position. (See Fig. 35.1 In case of feeding one page of fanfold paper by operating the MX-80 F/T Type II - Epson MX-80 | Operation Manual - Page 35
7.2. Roll paper 7.2.1. Roll paper holder EPSON offers the roll paper holder as an optional accessory for the MX-80 F/T Type II. See Appendix 7 for the assembly instructions on Roll Paper Holder. 7.2.2. Loading of roll paper The MX-80 F/T Type II accommodates a roll of single ply paper measuring 8.5 - Epson MX-80 | Operation Manual - Page 36
sheet 7.3.1. Loading of cut paper sheet The MX-80 F/T Type I I accommodates cut paper sheets measuring 8.3" to 8.5" in width. To load a cut paper sheet, observe the following procedure. STEP 1. Raise the printer lid. STEP 2. Unlock the release lever. (See Fig. 39.) STEP 3. Pull the scale toward - Epson MX-80 | Operation Manual - Page 37
7. Lock the release lever. While turning the manual paper feed knob clockwise, confirm that the paper advances straight up. (See Fig. 40.) Fig. 40 Adjustment of Inserted Paper Position If not, adjust the inserted paper position as follows: a) If the cut paper sheet or form is long enough, unlock - Epson MX-80 | Operation Manual - Page 38
long enough to align the side edges, align the top edge of the paper with the form position setting mark on the tractor unit. (See Fig. 42.) Fig. 42 Form Position Setting Mark The print area on the cut paper sheet (when printing it with the tractor unit installed) is shown in - Epson MX-80 | Operation Manual - Page 39
the top edge of the paper. If the paper is set on the line marked l/8, then the printing starts from a position 30.2 mm below the top edge of the paper. Push the scale back into position and put the printer lid on the Printer. (See Fig. 45.) Fig. 45 Printer with Cut Paper Sheet Set Completely -33- - Epson MX-80 | Operation Manual - Page 40
) by one step. (See Fig. 46.) (4) When a set of carbon paper sheets is used, be sure that no characters are printed within the area two lines each above and below the perforation. 9. Power Connection The EPSON MX-80 F/T Type I I Dot Matrix Printer is capable of operating on the following three - Epson MX-80 | Operation Manual - Page 41
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detail for the user to become familiar with the Printer. (See Fig. 47 for the control panel.) 1.1. Switches POWER SW: ON LINE S W : Controls primary AC power to the Printer. NOTE: Before turning this switch on, check to see if the paper is properly set in the Printer. Incorrect setting of - Epson MX-80 | Operation Manual - Page 43
. Therefore, before turning the POWER switch on to start operating the Printer, set the paper at the appropriate Top of Form position. The paper advances while this switch is being depressed. The line spacing for paper advancement is determined by ESC A + n code (described later). When the Power - Epson MX-80 | Operation Manual - Page 44
1.3. Printer initial check Take the following steps and become familiar with the Printer. -38- - Epson MX-80 | Operation Manual - Page 45
buzzer is located inside the Printer case, and sounds for about one second when the Printer receives BE L code (H). (See page 66 for the BE L code.) 3. Paper End Detector (1) When the paper end detector (a reed switch located on the paper guide) detects that the paper is nearly exhausted, the - Epson MX-80 | Operation Manual - Page 46
8" and the paper end detecting function will become invalid softwarewise. 4. Self -Test The MX-80 Type I I has a self-test (self-diagnostic) function to check the following. (1) Print head operation and printing quality (2) Operation of the printer mechanisms (motor, cartridge ribbon mechanism, belt - Epson MX-80 | Operation Manual - Page 47
IC's, etc. Remove the manual paper feed knob (black knob on the right side) by pulling it straight out, with firm but steady pressure. (See Fig. 50.) I Fig. 50 Removing Manual Paper Feed Knob Turn the printer upside down on a soft surface. With a Phillips type screwdriver completely loosen all - Epson MX-80 | Operation Manual - Page 48
Tip the printer right side up again. Gently loosen the upper case. Lift up the cover from the left side. And then pull out the wires hooked to the control panel on the right. (See Fig. 52.) Fig. 52 Pulling Out Wires Hooked to Control Panel -42- - Epson MX-80 | Operation Manual - Page 49
See the inside of the printer before you set the switches. The printer consists of a printer mechanism, a controller, a transformer and filter circuit board, and a control panel. (See Fig. 53.) -43- - Epson MX-80 | Operation Manual - Page 50
Position the printer as shown in Fig. 53. There are two "DIP" (DUAL IN-LINE PACKAGE) switches in the HMTP board. (See Fig these switches to suit your application or the computer's specifications. NOTE: Be sure that the POWER switch of the printer is turned off before changing switch positions. -44- - Epson MX-80 | Operation Manual - Page 51
This pin is used to activate or inactivate the paper end detector. When this pin is turned on, the paper end detecting function becomes invalid upon power application and the Printer is allowed to operate even if it is out of paper. With the Printer in this state, input of control code "ESC 9" will - Epson MX-80 | Operation Manual - Page 52
the explanation of control code "CR" in paragraph 3.1 (1) "WHAT IS THE MX-80 TYPE II?".) This signal line is wired ORed with the pin No. 14 of the automatic skip-over perforation function becomes valid. By this function, the paper automatically advances to the first line of the next page when the - Epson MX-80 | Operation Manual - Page 53
5.3. Coding tables Appendix 3 shows all available codes when the Printer is set for operation with standard coding by setting the DIP switch pins l-7, 2-l and 2-2 all to ON position. Table 5 shows International Character Set Designation according - Epson MX-80 | Operation Manual - Page 54
5.4. Setting sequence of functional specifications The MX-80 Type I I has a choice of various functional specifications such as amount of line spacing, form length per page, number of columns per line, automatic skip-over perforation, - Epson MX-80 | Operation Manual - Page 55
Fig. 57 Setting Form Length per Page -49- - Epson MX-80 | Operation Manual - Page 56
Fig. 58 Setting Number of Columns per Line -50- - Epson MX-80 | Operation Manual - Page 57
Fig. 59 Setting Skip-over Perforation Function -51- - Epson MX-80 | Operation Manual - Page 58
. •Broadly speaking, the EPSON MX-80 Type I I belongs to the following categories. Impact printer l Dot Matrix printer •l Serial printer with one line buffer Receive only printer (This printer might be sorted to another category.) The impact printer means that it impacts ribbon with carbon and forms - Epson MX-80 | Operation Manual - Page 59
sense it is one of the key features that the printer has. EPSON's MX-80 Type II can control each needle programmably, expanding the ability of the printer. See next how the print head works and forms a character. (1) Dot Matrix Printer The print head contains 9 "needles" or "wires" vertically. Each - Epson MX-80 | Operation Manual - Page 60
dots on the next line. It is absolutely necessary to separate characters vertically for ease in reading each sentence. Most typewriters and printers have a switch or lever to change the line spacing (1/6" or 1/8"). The MX-80 Type line spacing, there is no problem even if upper case characters and - Epson MX-80 | Operation Manual - Page 61
codes, especially like "ESCAPE," are not standardized. Every computer and printer manufacturer applies its own meaning to such codes. The "ESCAPE" codes used in the MX-80 Type I I should not be confused with the escape key which some computers have. So be familiar with EPSON's control codes. -55- - Epson MX-80 | Operation Manual - Page 62
dot configurations. The Text Mode is described in this section while the Bit Image Mode is covered in the following section. The MX-80 Type I I has been designed as a terminal unit capable of various software controls. When control codes are transferred to the Printer Formfeed (2) Paper formatting - Epson MX-80 | Operation Manual - Page 63
BS NUL ESC K, ESC L Selection or deselection of the printer . Selection or deselection of the paper end detector . Bell Back space . Null Access code to , if AUTO FEED XT is at "LOW" level, only paper feeding is performed. 3. When all 80 columns of data are "SPACE," the carriage assembly does not - Epson MX-80 | Operation Manual - Page 64
ESC C + n or ESC C + H + m as described later. 3.2. Paper formatting codes (1) HT (Horizontal Tabulation) The HT code carries out the horizontal tabulation to a recognized in the Printer, and subsequent tab stops are ignored. The tab stop positions can be specified up to 80 columns in normal - Epson MX-80 | Operation Manual - Page 65
(3) ESC Q + n The print column width can be specified by inputting ESC Q + n code. "n" represents the print column width to be specified in character size at the time of input. normal character condensed character enlarged character enlarged-condensed character -59- - Epson MX-80 | Operation Manual - Page 66
is equivalent to 1/72 inch paper advancement. Since the distance between any two dot wires of the print head is 24/72 = 1/3 inch (24 = (00011OOO)2), actual output to the Printer is performed as H H H in hexadecimal code. 80 personal computer. [LPRINT CHR$(27); CHR$(65); CHR$(24)) -6O- - Epson MX-80 | Operation Manual - Page 67
tab stop positions. The first 8 valid tab stops per page are recognized in the Printer; subsequent tab stops are ignored. A tab stop set at a line exceeding the form code. Therefore, the paper is advanced one line after printing. Receipt of "ESC B" code causes the Printer to accept the following - Epson MX-80 | Operation Manual - Page 68
(9) FF (Form Feed) See paragraph 3.1 (4) above. (10) ESC C + n (n # 0), ESC C + [0]H + m (for setting form length) The "ESC C t n" code specifies the form length which is determined by the number of lines where the value of "n" is a positive number and must not exceed 127 lines). In other words - Epson MX-80 | Operation Manual - Page 69
(12) ESC 0 This code cancels the skip-over perforation set by the ESC N + n code. 3.3. Character designation codes (1) SO (Shift Out) (for enlarged characters) When the SO code is input, all data that follows it in the same line will be printed out in enlarged (double width) characters. This code is - Epson MX-80 | Operation Manual - Page 70
(2) SI (Shift In) (for condensed characters) When the SI code is input, all data that follows it will be printed out in condensed characters. This code is cancelled by the input of "DC 2" code. The SI code can be input at any column position on a line, but all characters/ symbols on the line - Epson MX-80 | Operation Manual - Page 71
(7) ESC E (for emphasized characters) The ESC E code causes the Printer to print emphasized characters. Emphasized printing gives the character a stronger impression on the paper. This code can be input in any column position on a line, but all characters on the line containing ESC E code are - Epson MX-80 | Operation Manual - Page 72
cannot receive data when there is no paper. With the DIP switch pin l-6 set in the OFF position, the Printer is placed in the ESC 9 condition upon application of power. (5) BEL (Bell) When the BE L code is input, the buzzer sounds for about 1 second. Arbitrary use of this code is recommended to - Epson MX-80 | Operation Manual - Page 73
control any dot in a 280-by-193 screen matrix. As well as the latter "APPLE II," the MX-80 Type II has no character generated graphics but allow you to control all the 8 needles freely and programmably by means of the so-called "Bit Image". To do that you have to switch the printer from the - Epson MX-80 | Operation Manual - Page 74
( < 4 B > H) c o d e s a n d d a t a n l a n d n2 a r e i n p u t , t h e Printer recognizes the data following the "ESC K" as the bit image data. nl and n2 are the hexadecimal excess of 480 dot positions are ignored and printing of the bit image data after the 480th dot position is not guaranteed - Epson MX-80 | Operation Manual - Page 75
(Ex. 4) Bit image data transfer by standard BASIC program To check for proper conversion to the Normaldensity Bit Image mode, execute the following program. [PROGRAM] 150 REM bit image printing 160 LPRINT CHR$ ($H1B); "K"; CHR$ ($H50); CHR$ (&H0); 170 FOR N=1 TO $H50 180 LPRINT CHR$(&HFF); 190 NEXT - Epson MX-80 | Operation Manual - Page 76
n d L ( < 4 C > H) codes followed by data nl a n d n2 a r e input, the printer's operation mode is converted from Text to Dual-density Bit Image. The transfer sequence of bit image data is the same as can be performed in twice the dot density in the horizontal direction as with the ESC K. In - Epson MX-80 | Operation Manual - Page 77
Fig. 68 shows the relationship between the Bit Image data and the dot wires in the print head. You can control arbitrary 8 dot wires in the print head. If a bit is "1," the print head fires. If a bit is "0," the print head does not fire. For example, assume that - Epson MX-80 | Operation Manual - Page 78
How to obtain n1 and n2 In the Type II Printer, you have send the number of data You can also use Appendix 3, Code Table, to find the corresponding hexadecimal numbers to the decimal numbers. The schematic of data transfer sequence in the Bit Image mode is shown in Fig. 64. Fig. 64 Data Transfer - Epson MX-80 | Operation Manual - Page 79
-density bit image printing Fig. 65 Example of Graphic Pattern Formation NOTE: The most significant bit (MSB) of the bit image data corresponds to the dot wire at the uppermost position. For example, to print a graphic data as shown in Fig. 65, a program such as shown below must be executed. However - Epson MX-80 | Operation Manual - Page 80
(2) Normal-density bit image printing -74- - Epson MX-80 | Operation Manual - Page 81
-Density and Dual-Density Modes NOTE: Print alignment under the friction feed. EPSON is carefully applying printer mechanisms of better quality for MX-80 Type II and MX-80 F/T Type II. However, due to the nature of friction feed in which paper may slip, it is not available to use the bit image mode - Epson MX-80 | Operation Manual - Page 82
(4) Example of CRT screen dump hard copy This print example is made using APPLE II computer and the demonstration diskette. Fig. 67 Examples of Bit Image Printing -76- - Epson MX-80 | Operation Manual - Page 83
(5) Example of expression of brightness using the Bit Image Mode Fig. 68 Examples of Expression of Brightness -77- - Epson MX-80 | Operation Manual - Page 84
MAINTENANCE 1. Preventive Maintenance Preventive maintenance for the MX-80 Type II and MX-80 F/T Type I I (hereafter referred to as "Type II Printer") consists basically of cleaning. The Printer should be cleaned with a soft brush to remove paper dust and particles after every three months of use. - Epson MX-80 | Operation Manual - Page 85
*Take hold of the cable at the point indicated by arrows and apply force in either of the directions Indicated by arrow to push in or pull out the head cable. Fig. 69 Replacement of Print Head -79- - Epson MX-80 | Operation Manual - Page 86
SPECIFICATIONS (1) PRINT METHOD: Serial impact dot matrix (2) PRINT SPEED: 80 CPS (3) PRINT DIRECTION: Bidirectional with Paper Path: Rear (9) INTERFACES Standard: Centronics-style 8-bit Parallel Optional: RS232C, IEEE 488, etc. (10) INKED RIBBON Color: Black Type: Exclusive cartridge - Epson MX-80 | Operation Manual - Page 87
% non-condensing (13) POWER REQUIREMENT Voltage: 115v, 60Hz 220/24OV, 50Hz Current: 1 Amp maximum Power Consumption: 100 VA maximum (14) PHYSICAL CHARACTERISTICS MX-80 TYPE II MX-80 F/T TYPE II Height: 107 mm (4.2") 133 mm (5.2") Width : 374 mm (14.7") 374 mm (14.7") Depth: 305 mm - Epson MX-80 | Operation Manual - Page 88
APPENDIX 1 Construction of MX-80 Type II and MX-80 F/T Type II The EPSON MX-80 Type I I and MX-80 F/T Type II dot matrix printers (hereinafter referred to as "Type II Printer") consist of the following three major functional blocks. (1) Printer Mechanism (2) Control Circuit Board (3) Power Circuit - Epson MX-80 | Operation Manual - Page 89
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Fig. Al-2 Driver Circuit Diagram -85- - Epson MX-80 | Operation Manual - Page 91
DC to energize the solenoids of the print head and two stepper motors. 1.4. Printer initialization Printer initialization is accomplished in either of the two ways described below. (1) Initialization takes parallel interface connector. This line should be driven by a TTL driver or its equivalent. - Epson MX-80 | Operation Manual - Page 92
Both the MX-80 Type II and MX-80 F/T Type II include printer cannot receive data. The signal becomes "HIGH" in the following cases: 1. During data entry 2. During printing operation 3. In OFF-LINE state 4. During printer error status. A "HIGH" signal indicates that the printer is out of paper - Epson MX-80 | Operation Manual - Page 93
"HIGH" level, and its pulse width must be more than 50µs at the receiving terminal. The level of this signal becomes "LOW' when the printer is in 1. PAPER END state 2. OFF-LINE state 3. Error state Same as with Pin Nos. 19 to 30. Not used. Pulled UP to +5V through 3.3k resistance - Epson MX-80 | Operation Manual - Page 94
(4) Data transfer sequence Fig. A2-1 shows the sequence for data transmission. Relations among the ON LINE switch, SLCT IN signal, DC 1/DC 3 code and interface signals are shown in Table A2-2 below. Table A2-2 Relations among ON-LINE, SLCT IN, DC 1/DC 3 and Interface Signal -89- - Epson MX-80 | Operation Manual - Page 95
to the OFF-LINE position of the ON LINE switch. In the ERROR status, the Printer is not in the Selected state (SLCT = "LOW"). 3. The DC l/DC 3 . 36 of the interface connector is "HIGH." With SLCT IN at "LOW' level, the Printer is always placed in the Selected state, and the DC 1 /DC 3 code is not - Epson MX-80 | Operation Manual - Page 96
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APPENDIX 4 Character Fonts -92- - Epson MX-80 | Operation Manual - Page 98
NOTE: Numbers represent Hex. code -93- - Epson MX-80 | Operation Manual - Page 99
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APPENDIX 5 Control Codes - Epson MX-80 | Operation Manual - Page 102
accordance with the manufacturer's instructions, may cause interference to radio and television reception. It has been type tested and found to user may find the following booklet prepared by the Federal Communications Commission helpful: "How to Identify and Resolve Radio-TV interference Problems - Epson MX-80 | Operation Manual - Page 103
. (L.A.) 3415 Kashiwa St. Torrance, Calif., 90505 Phone: (213) 539-9140 Telex: (230) 182412 EPSON DEUTSCHLAND GMBH Am Seestern 24 4000 . DÜsseldorf 11 F.R. Germany Phone: (0211) 596-1001 Telex: (41) 8584786 EPSON AMERICA, INC. (N.Y.) 98 Cutter Mill Road Great Neck, New York, 11021 Phone: (516) 487
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MX-80
EPSON DOT MATRIX PRINTER
TYPE II
Operation Manual
EPSON
P8190014-2