Panasonic KX-P1150 User Manual

ORDER NO.KM69307470C8

ServiceManual

Printer

Dot Matrix Printer

KX-P1150

SPECIFICATIONS\TEXHM4ECKME ХАРАКТЕРИСТИКИ

OPERATOR CONTROLS/INDICATORS\УПРАBЛEHИE И ИНДИКАТОРЫ REMOVAL AND REPLACEMENT PROCEDURES\METОДИKА ЗАМЕНЫ И РАЗБОРКИ

ADJUSTMENT\HАCTРОЙKА

MECHANICAL FUNCTIONS\МEXАHИЧECKИE ФУНКЦИИ

ELECTRONIC CIRCUIT BLOCK DIAGRAM\БЛОK-CXEМА ЭЛЕКТРИЧЕСКОЙ ЦЕПИ

ELECTRONIC CIRCUIT DESCRIPTIONS\ОПИCАHИE ЭЛЕКТРИЧЕСКОЙ ЦЕПИ PARTS LIST AND LUBRICATION\CПИCОK ЗАПАСНЫХ ЧАСТЕЙ И СМАЗКА PACKING MATERIALS\УПАKОBОЧHЫE МАТЕРИАЛЫ

Panasonic

KX-P1150

1. Specifications

Power requirements:

Current:

Power consumption:

Interface:

Print mode:

Character sets:

Buffer:

Dot configuration:

Character size

Normal characters:

Character per line (cpI) (per inch (25.4mm) (cpi)):

Print speed:

AC220-240V, 50/60Hz

Idle: 0.1A; Maximum 0.7A

Max ------	60 W
Standby	5W
Self Test	----- 35 W

Centronics parallel

Draft, Near Letter Quality (Courier, Bold PS, Times Roman, Sans Serif)

96 ASCII characters, 33 International characters (14 countries + LEGAL Set no science), 158 IBM-PC special characters, 38 Multilingual characters

4K (standard), additional 32K (optional KX-P44)

Dot Diameter: 1/84 inch (0.3mm)

			Draft	NLQ
	Dot Alignment (HxV)		9x9	18x18
	Dot Pitch	(H)	1/120"	1/240"
		(V)	1/72"	1/144"

0.074(W) X 0.097(H) inch (1.89 x 2.46 mm)

		Draft, LQ				Elongated
Pica		80 cpi (lOcpi)				40 cpi (5cpi)
Elite		96 cpi (12cpi)				48 cpi (6cpi)
Micron		120 cpi (15cpi)				60 cpi (7.5cpi)
Compressed		137 cpi (17cpi)				68 cpi (8.5cpi)
Elite compressed		160 cpi (20cpi)				80 cpi (lOcpi)
		Micron		Elite			Pica
Draft		240 cps		192 cps			160 cps
Letter Quality		32 cps		38 cps			32 cps

Print direction:	Text printing: Bi-Directional
	Bit Image printing: Uni-Directional & Bi-Directional
New line time:	Approx. 100 msec [with 1/6 inch (4.2 mm) line feeding]
Paper feed:	Friction and Push Tractor
Paper used:
			Width		Weight	Height
	Fanfold paper		4-10 in		16-24lbs.
			(102-254mm1
	Single sheet		4-11.7 in		14-24 lbs.	5-14.3 in
			(102-297mm)			(127-363mm)
	Envelopes		Standard business envelopes ie: #6, #10 size
Paper thickness:	Total thickness of sheets must be less than 0.013 inch (0.32 mm).
Number of copies:	Original -(- 3 non-carbon copies
Printer emulation:	EPSON	FX-850
	IBM	Proprinter 111

KX-P1150

Storage environment:

Operating environment:

Head service life:

Ribbon:

Optional accessories:

Temperature: -4°F to 140°F (-20°C to + 60°C) Humidity: 10-90%RH

Temperature: 50°F to 95°F (+10°C + 35°C) Humidity: 30-80%RH

Approx. 200 million strokes in draft mode

Cassette seamless fabric ribbon

Black ribbon cassette KX-P115/KX-P115i: Life expectancy (in Draft mode) (rolling ASCII)

Approx. 4 million characters

Auto Cut Sheet Feeder (single bin) (KX-PT12) 32K Buffer Chip (KX-P44)

Ribbon Cassette (black) (KX-P115/KX-P115i)

Dimensions:	17.1" (W) X 12.4" (D) X 5.3" (H) in. (434 x 314 x 134.5 mm)
Weight:	Approx. 10.6 lbs. (4.8 kg)
Printing area:	Fanfold paper
			Fanfold Paper
	J^i _________	A	1" (25.4 mm)
		B	0.7" (17.8 mm)
		C	0.33" (8.38 mm)
	■ 1st character	D	1" (25.4 mm)

Printing area

--------------------- -To-i: i— Paper perforations

Printing area

Single sheets and Envelopes

B »*

arc

'1 St character

Printing area

ID

A; Value A indicates the area near the paper perforations where the quaiity may not be optimum.

B Vaiue B indicates the maximum distance between the sprockets and first printabie character. (When the ieft tractor is set on the left end and the margin is set to 0.)

C:Value C indicates the area from the top edge of the paper to the top of the first printed character.

D:Value D indicates the position where paper out is detected and printing may not be optimum.

Single sheets and Envelopes

B1.5" (38 mm)

C0.33" (8.38 mm)

D1" (25.4 mm)

B:Value B indicates the minimum distance between the edge of the paper and the first printable character.

C:Value C indicates the area from the top edge of the paper to the top of the first printed character.

D:Value D indicates the position where paper out is detected and printing may not be optimum. (When printing on envelopes, do not print on area where edges overlap. Print quality may

not be optimum.)

Specifications are subject to change without notice.

KX-P1150

2. Operator Controls/Indicators

■ON LINE Switch

■TEAR OFF Switch

-LF/FF Switch

■LOAD PARK Switch

-ON LINE Indicator

•POWER/PAPER OUT

Indicator

KX-PllSQ

3. Setting of Controls

This section covers the basic operation of the printer. For more detailed operation, refer to the operator's manual.

3.1 Print Mode

®® PROGRAM

@ ®	Courier		ON LINE		TEAR		LOAD
®@	Roman O O	FONT	o	ON LINE		LF/FF
	Bold PS		POWER		OFF		PARK
^®"	Sans Serif		PAPER OUT

FONT switch:

ON LINE switch:

LF/FF switch:

TEAR OFF switch:

LOAD/PARK switch:

FONT indicators:

ON LINE indicator:

POWER/PAPER OUT indicator:

Pressing this switch will select the font style.

This switch opens and closes the communication line with the computer.

Pressing this switch advances the paper one line at a time. Holding this switch advances the paper to the first print line of the next page.

Pressing this switch will advance or reverse the paper for tearing off.

Pressing this switch will load or park the paper.

These indicators identify which Font has been selected.

This indicator is lit when the printer is in the ON LINE mode and is out in the OFF LINE mode.

This indicator is lit when the power is on and paper is installed. It blinks when paper is not installed.

KX-P1150

3.2Service Operation

The following service functions can be executed when checking, adjusting or testing the printer.

	Operating Switch	Function Name	Description
	LF/FF switch + Power switch	Self. Printing Test	All characters stored in the FONT ROM are printed
			for 20 minutes.
	ON LINE switch, LF/FF switch +	Print Timing	When adjusting the Print Timing, use this function.
			For more detailed information please refer to Section
	Power switch
			5.2 Print Timing
	ON LINE switch + Power switch	Head Aging	After installing the new printhead, use this function to
			check the movement of the printhead pins. Do not
			use this function more than 30 minutes.
	FONT switch + Power switch	Hex-Dump	This function is for analyzing the data being
			printed by the printer. When the function is
			activated, all data received by the printer is printed
			in hexadecimal code.
	TEAR OFF switch + Power switchDemonstration		The printer will perform Demonstration Printing.
		Printing

Note: After completing each of the above checks, turn the power switch off to reset the unit.

KX-P1150

4. Removal and Replacement Procedures

For safety and to avoid possible damage to electronic components, the AC line cord must be unplugged before

disassembly.

Platen Knob

	4.1	Covers
	Caution: The control panel board is installed on the
		upper cabinet. The control panel cable is
		attached to connector CN300 on the
		control panel board and connector CN204
		on the main board.
		When lifting off the upper cabinet from the
		machine, be careful not to damage the
		connectors and control panel cable.
	1. Remove the paper stand and smoked plastic
		cover.
Screws	2.	Remove the platen knob.
	Upper Cabinet
	3.	Remove the screws (2) from the upper cabinet.
	4.	Lift off the upper cabinet.
	5.	Unplug the control panel cable from connector
		(CN204) on the main board.

6. Remove the Upper Cabinet.

Control Panel Cable

4.2 Printing Mechanism

1.Unplug connectors CN201, CN202, CN206 and CN207.

2.Position the carriage on the right side.

3.Remove the cable cover screw and cover.

4.Unplug the printhead flat cable from connector (CN203) on the main board.

5.Remove the screws (4) from the chassis.

6.Lift off the printing mechanism.

Note: Use care when removing the cable cover to avoid damaging the print head flat cable.

CN206 CN201 CN202 Cable Cover Screw

CN207

KX-P1150

4.3 Main Board

1. Unplug connector (CN200) on Main Board.

2. Remove the screws (5) from the Main Board. The Main Board can now be removed.

Screws

4.4 Power Board

1. Unplug connector CN1 on the power board.

2. Remove the screws (3) from the power supply unit.

3. Remove the screws (4) from the enclosure cover.

4. The enclosure cover, shield plate and power board can now be separated.

4.5 Printhead

Opening Screws Printhead

1. Position the carriage at the opening.

2. Remove the screws (2) from the printhead.

3. Release the upper cable cover from the carriage by pushing down on the upper cable cover at point (A).

4. Remove the printhead by lifting the printhead and unplugging the printhead flat cable.

Note: When reinstalling the upper cable cover, ensure that the print head cable is not pinched by the cable cover latches.

Note: When the printhead is installed, ensure that the head gap is correct.

Refer to section 5.1.

KX-P1150

4.6 Carriage Assembly

1. Loosen the idle pulley bracket screw (1) and release the timing belt from the pulley.

2.Remove the head gap lever screw, and Ground Wire. Remove the head gap lever.

3.Remove the carriage shaft eccentric cams from the right and left side frames by turning either clockwise or counter clockwise.

4.Slide the carriage shaft out from the left side and remove the carriage shaft.

Note: When installing the carriage assembly and its shaft, ensure that the head gap is properly adjusted. (Refer to section 5.1).

4.7 Platen Assembly

1. Release the latches on the ejection roller assembly.

2. Rotate the ejection roller assembly forward.

3. Remove the ejection roller assembly by lifting straight up.

4. Release the latch of the platen bushings from the left and right side frame. Rotate the bushings toward the rear of the machine.

5. Slide both platen bushings out of the frame by pushing them inward.

6. Lift off the platen assembly.

Tractor Drive

Tractor Drive

4.8 Tractor Assembly

1. Release the tractor guide shaft from the left and right side frame by pushing the iatches.

2. Release the latches of the left and right tractor drive shaft bushings.

3. Lift off the tractor assembly.

KX-P1150

5. Adjustment

	(Head Gap Lever)		(Paper Feed Selector)
	A c	Single	□
	H
		Sheet
	E	Position
	A
	D
	G
	A
	P
	V	c

+

0.45 mm Gauge^,^^ n (does not pass)

0.40 mm Gauge\^ n (does pass)

5.1 Head Gap

1.Set the head gap lever to the single sheet position.

2.Set the paper feed selector to the position.

3.Ensure the printhead is firmly secured with 2 screws.

4.Move the carriage to the left side and adjust the head gap between the platen and the printhead for a clearance of 0.35mm-0.4mm by turning the left eccentric cam.

5.Move the carriage to the right side and adjust the gap as per step 4 above by turning the right eccentric cam.

Note: The projection on the eccentric cam is released from the adjustment hole by pulling the knob. Turning the eccentric cam one step causes 0.037mm ± 0.052mm head movement.

Note: Use only a round wire feeler gauge of the specified dimension for this adjustment.

Note: The head gap adjustment is required when replacing the head, platen, carriage, carriage shaft or eccentric cams.

Note: Moving the head gap lever towards the® position increases the head gap clearance, and moving toward the(2)position decreases the clearance.

abnormal

H H H

normal

KX-P1150

5.2 Print Timing

This adjustment is used for adjusting the print timing. There are 6 different speeds at which the print timing can be adjusted.

The print timing is adjusted using the following procedure:

1.Turn on the power while holding the ON LINE and LF/FF switches.

2.Press the FONT switch to print the "H" pattern. The "H" pattern will be printed for 4 full lines.

3.Check the print timing comparing the "H" pattern from line to line.

4.If the print timing is misaligned, adjust it by using the LF/FF (Move to right) and ON LINE (Move to left) switches and retry the printing for a final check.

Note: Pressing the LF/FF or ON LINE switch moves the line in 1/1440 inch increments.

5.Press the TEAR OFF switch to select the next print speed.

6.Repeat steps 2-4 for each print speed.

7.Press the LOAD/PARK switch to save the print timing in memory. The printer will return to the normal print mode.

Note: If the second line of the "H" pattern is shifted by more than half of an "H" character, be sure the printing mechanism is normal before starting adjustment.

KX-P1150

6. Mechanical Function

Carriage Drive Gear

Barrier Tab

Leaf Switch

6.1 Carriage Drive System

The Carriage Drive System uses a pulse motor to move the carriage 1/60 inch per single drive pulse. The carriage slides on the carriage guide plate and carriage shaft when spacing to the right and left.

6.1.1 Power Transmission Mechanism

The rotation of the carriage motor is transmitted to the carriage through the carriage drive gear. The timing belt fixed under the carriage is looped around the idle pulley and carriage drive gear. This causes the carriage to move left and right along the carriage shaft. The timing belt is given proper tension by the idle pulley tension spring hooked between the pulley bracket and chassis.

6.1.2 Print Timing

Print timing for pica (1/60 inch) and elite (1/72 inch) is generated by a software operated timer. Refer to "Carriage Motor Drive Block" page 33.

6.1.3 Home Position Detector Mechanism

The home switch is a leaf switch located at the far left of the printer. Its function is to notify the CPU of the carriage reference position. During spacing operation, when the carriage approaches the left margin, the barrier tab, mounted under the carriage, actuates the home switch, generating the signal and indicating carriage position to the CPU.

KX-P1150

6.1.4 Ribbon Cassette Drive Mechanism

This function performs the ribbon feed operation in accordance with the movement of the carriage. The ribbon cassette drive mechanism is shown in Figures 1 and 2.

This mechanism gives uniform ribbon feed regardless of the direction of the carriage movement. It consists of the rack gear 0 , ribbon drive gear (§) with the ribbon feed hub and 3 gears.

When the carriage moves to the right (Fig.1), rack gear 0 turns the neutral gear ® counter-clockwise. The neutral gear 0 then engages with gear ® via the gear (5) which turns the ribbon drive gear 0 clockwise with the hub.

Fig,1 (Bottom View)

When the carriage moves to the left (Fig.2), rack gear 0 turns neutral gear @ clockwise. Neutral gear ® then engages with gear 0 which turns ribbon drive gear 0 clockwise with the hub.

6.2 Paper Thickness Selection

Selection for the number of copies is made by changing the distance between the platen and the printhead nose tip. When the head gap lever is operated, the carriage shaft revolves on the eccentric cams, moving the carriage forward or backward.

KX-P1150

Pin Guide

Stopper

6.4 Paper Feed Mechanism

6.3 Printhead

The printhead utilizes 9 electromagnets as a driving source, which causes the pins to strike the ink ribbon against the platen and onto the typing paper for matrix printing. The construction of the printhead is shown at the left.

6.3.1 Power Transmission Mechanism

The set of 9 electromagnets consists of a one piece yoke and 9 coils. The armature which secures the pins is supported by this yoke.

6.3.2 Printhead Pin Operation

When the coil assembly is excited by a print signal, the armature is drawn in, and the pin secured by the armature is guided by the various guides to move in the direction of the platen. The pin strikes the ribbon to the paper. Next, the return spring moves the armature and pin from the platen back to the rest position.

A DC pulse motor is used as a paper feed motot. Both continuous paper and single sheet can be fed by operating the paper feed selector. Continuous paper is loaded on both left and right sides of the pin belt on the tractor drive device. Continuous paper is fed from the rear of the printer. Single sheet is fed from the top of the printer. The paper feed mechanism is shown below.

Ejection Roller Gear

KX-P1150

6.4.1 Friction Paper Feed Mode

This mode is for feeding single sheet paper from the top of the printer in the friction paper feed position. By operating the paper feed selector, the fixed Clutch Gear is disengaged from the Slide Clutch Gear. As a result, the Tractor Gear is released from its power transmission mechanism.

When setting the paper feed selector at single sheet paper position, the Friction Roller Gear rotates in a clockwise direction. As a result, the Friction Roller Shaft revolves, allowing the Friction Rollers to contact the platen for gripping the paper when feeding. The Friction Roller Gear also pushes the leaf switch to notify the CPU that the selector is in the" Q " Friction position.

Fixed Clutch Gear

Friction Roller

6.4.2 Tractor Paper Feed Mode

This mode is for feeding continuous paper from the rear of the printer. By moving the paper feed selector to the " ini" Tractor position, the Slide Clutch Gear is engaged with the Fixed Clutch Gear. This enables turning of the tractor drive mechanism for push mode. When the paper feed selector moves to the" 0" Tractor position the Friction Roller Gear is rotated in a counterclockwise direction. As a result, the Friction Roller Shaft revolves and moves the Friction Rollers away from the platen. This enables free paper passage from the rear of the machine. The Friction Roller Gear also breaks contact with the leaf switch to notify the CPU that the selector is in the" p]" Tractor position.

Fixed Clutch Gear

Friction Roller

KX-P1150

6.5 End of Paper Detector

The printer uses a mechanical switch for detecting paper out with continuous or single sheet paper. When paper is loaded In the printer, the lever is down, and the condition of the mechanical switch is on. This sends a signal to the CPU indicating paper loaded in the printer. When paper is out, the lever is up, and the condition of the mechanical switch is off. This removes the signai from the CPU indicating no paper is in the printer.