Sharp FO-2150CM, UX-2200CM User Manual
UX-2200CMU/CMC
FO-2150CMU/CMC
TECHNICAL MANUAL
No. 00ZU220CMUTME
FACSIMILE
INK JET PRINTER
UX-2200CM
MODEL FO-2150CM
This Technical Manual contains detailed information about the printer for the UX- 2200CM / FO-2150CM
to the Service Manual already issued.
CONTENTS
[1] Engine Specifications........................................................................................................................... 1
[2] Abbreviations ....................................................................................................................................... 1
[3] Diagnostic Information ......................................................................................................................... 1
[4] Circuit description ................................................................................................................................ 2
[5] Overall Trouble Shooting of Printer PWB............................................................................................. 7
[6] How to Decide the Number of the Wrong Nozzle .............................................................................. 10
[7] Waveforms......................................................................................................................................... 12
[8] Service Checks .................................................................................................................................. 15
[9] IC signal name ................................................................................................................................... 19
[10] Exploded View ................................................................................................................................... 23
[11] Replacement Parts List ...................................................................................................................... 24
Parts marked with " " is important for maintaining the safety of the set. Be sure to replace these parts with specified ones for
maintaining the safety and performance of the set.
This document has been published to be used
SHARP CORPORATION
1 - 1
for after sales service only.
The contents are subject to change without notice.
UX-2200CMU/CMC
FO-2150CMU/CMC
[1] Engine Specifications
1. Mechanism
Resolution : 600 dpi x 600 dpi addressability
Print Speed : 3 PPM draft text with black cartridge
Print Swath : 8 inches
Duty Cycle : Up to 500 pages per month maximum, 170 pages per month average
Dimensions (approximate) : 350mm x 125mm x 60mm
Weight (approximate) : 1.2 pounds
Acoustics : 45 dBA in letter quality mode (using Lexmark paper feed and covers which is not
included)
2. Electrical
No electrical hardware included with the type B engine except for the carrier drive stepping motor and the Sensor
FPC assembly whitch includes a photo interrupter for sensing home position, the carrier cables and the printhead
cable.
3. Print Cartridges (Print Cartridges are supply items and sold separately)
Black Print Cartridge : 56 Nozzles
Pigment based(water proof)
High yield cartridge Up to 1000 pages at 5% coverage
Color Print Cartridge : 48 Nozzles(16 Nozzles each of cyan, magenta and yellow)
Fade resistant ink
300 pages average at 15% coverage of 3 colors (5% coverage of each color)
[2] Abbreviations
EOF End-of Form
ESD Electrostatic Discharge
FRU Field Replaceable Unit
HVPS High Voltage Power Supply
LVPS Low Voltage Power Supply
NVRAM Nonvolatile Random Access Memory
OEM Original Equipment Manufacturer
POST Power-On Self Test
V ac Volts alternating current
V dc Volts direct current
ZIF Zero Insertion Force
[3] Diagnostic Information
Start
Power-OnSelf Test (POST) Sequence
When you turn the printer on it performs a POST . Turn the machine on and check for a correct POST operation by
observing the following:
1. The carrier moves.
2. The paper feed gears turn.
3. After 30 seconds the carrier moves over the maintenance
station and caps the printhead.
4. All motors stop.
– 1 –
UX-2200CMU/CMC
FO-2150CMU/CMC
[4] Circuit description
1. General description
The compact design of printer PWB is obtained by using 8 bit microprocessor(CPU) and ASIC in the printer control
section.
2. Electrical System
The PWB provides mechanical control for Ink Jet Printer.
Figure 1 shows the interconnection of PWB and other electrical component in the print mechanism.
Ink Cartridge
CN2
CN4CN3
PC1
CN1
CNPRT
Host Interface
Paper Feed MotorCartridge Carrier Motor
Figure 1
– 2 –
UX-2200CMU/CMC
FO-2150CMU/CMC
3. Electricai Overview
The information in this section appears in a sequence relative to the system diagram in the following figure.
SRAM
8bit
MPU
TO FAX PWB
Host Interface
Driver
ASIC
Sensor
•Home Position
•Paper-IN
Driver
Driver
Figure 2 System of printer Block diagram
Head
Carriage Motor
Feed Motor
4. Power Supply Connector
The mechanism requires two voltages (+5V and +24V).
These two voltages supplied from CNPRT connector.
5. Host interface connector
Connector CNPRT on the printer PWB provides 28 lines from the host unit, for control of various operating options
available to the host.
The two primary functions of the host interface are:
Printing data for the Ink Jet Printer.
Error status to the host.
6. ASIC, RAM, and CPU
The Application Specific Integrated Circuit(ASIC) combines several blocks of circuitry into one chip.
Descriptions of circuitry within the ASIC appear later in the section.
A microprocessor bus, which extends inside the ASIC, carries data among the CPU(include internal ROM), RAM, and
ASIC circuitry.
The ROM (inside CPU) is a 8K Byte chip that contains the software code (firmware) for the Ink Jet Printer.
The RAM is a 32 K Byte chip that stores print data and other variable information.
– 3 –
UX-2200CMU/CMC
FO-2150CMU/CMC
7. Driver IC
The paper motor and carriage motor require current that cannot be driven directly from ASIC chip.
Motor driver IC provide the additional current and voltage capability.
The driver IC (IC1 and IC2) located near the respective motor connector on the printer PWB also connect back to the
ASIC.
Two additional drivers IC drive 56 nozzles on the cartridge.
These driver ICs , located between the two flex-circuit connector (CN3 and CN4) on the printer PWB , also connected
back to the ASIC.
The out-of-paper sensor do not require drivers, and connect directly to the ASIC.
The Host interface also connects directory to the ASIC.
8. Paper Motor
The ASIC controls the paper motor, which is a stepper motor that connects via a 5 pin connector to CN1 on the printer
PWB.
The stepper motor is a 4-coil motor, which must be stepped in proper sequence, requiring four signal lines to initiate
each line.
This is an open-loop system that does not provide feedback to the logic circuit on printer PWB.
The Paper motor drives the recording paper movement.
The planetary gear is changed over according to the rotation direction of this motor.
Accordingly,hand paper feed or automatic paper feed is selected.
(1) Paper feed(paper feed from tray)
The planetary gear turns counterclockwise and is connected to the PU gear,so that paper is fed automatically.
HAND FEED PAPER
AUTOMATIC
FEED PAPER
The automatic paper feed or
hand paper feed is selected by
changing the rotation direction of
motor as a result of changing-over
of this planetary gear.
MOTOR GEAR
PU GEAR
– 4 –
PRINTER FEED GEAR
UX-2200CMU/CMC
FO-2150CMU/CMC
(2) Print transfer
The planetary gear turns clockwise and is disconnected from the PU gear,so that the paper is not fed automati
cally. In case of hand paper feed the paper is fed directly to the transfer roller.
HAND FEED PAPER
PLANET GEAR
MOTOR GEAR
AUTOMATIC
FEED PAPER
PU GEAR
When the mechanism stops,
the automatic paper feed
is not performed
9. Carriage Motor
PRINTER FEED GEAR
The ASIC controls the carriage motor, which is a stepping motor that connects
via a 4-pin connector to CN2 on the printer PWB.
10. INK Cartridge Carriage
The carriage connects via a flex circuit that plugs into the 32 pin connectors, CN3 and CN4 on the printer PWB.
The ink cartridge contacts connect to the carriage contacts.
The ASIC controls the carriage , and ink cartridge.
11. Paper IN Sensor
The Peper-IN-Sensor exists on printer PWB.
This sensor is an optical sensor.If the optical route is interrupted,Collector PIN(pin-C)of this sensor indicates HiLevel(5V).If the optical route is opend,pin-C indicates Low-Level(0V).
This sensor provides information of front and end edge location of recording paper and information of paper jam.
The change between Hi and Low of this sensor(PC1 pin-C)is used as follows.
1. In the case of manual paper feeds
When the recording paper is inserted from By-pass route,the front edge of this recording paper pushes the lever,and
this sensor indicates L.
Paper feed action is happened by this change and recording paper is fed in constant length.
As paper feeds out of paper path,the lever returns,this sensor indicates H and provides information of end edge of
the recording paper.
2. In the case of auto paper feeds
When printing action happens and there is no recording paper at By-pass route and there are some recording
papers at auto paper providing unit,the feed motor is driven and the recording paper is fed from auto paper providing unit.
At this time,the change from H to L of this sensor provides the front edge of the recording paper.And this sensor
provides information of paper jam ,when this sensor DOES NOT change from H to L after some time.
As paper feeds out of paper path,the lever returns,this sensor indicates H from L and provides the infomation of end
edge of the recording paper.
– 5 –
12. Home Position Sensor
LEFT
UX-2200CMU/CMC
FO-2150CMU/CMC
RIGHT
B
C
A
CARRIAGE HOLDER
The home position of carriage is detected as a result of change of output of photointurrupter A which is caused due to
shutting-off of optical path of photointerrupter A by the slit B .
While the photointerrupter is shut off by the slit B, the output (pin 1 of CN3) of photointerrupter gets H level (+5V). If it
is not shut off, the output gets L level (0V).
In the home position the output is L. In case of L direction movement the output is H during passing through the slit,
and after passing the output gets again L level.
The operation logic is as follows.
Insignificant movement in L direction
(1) If in this case the output is L:
It is judged that the carriage exists in the L direction as compared to the slit B . The carriage is moved in the R direction, so that the output changes from L to H (during passing through the slit B ). Further the carriage is moved in the R
direction. The position where H changes to L again is regarded as a home position.
(2) If in this case the output is H:
It is judged that the carriage exists near the home position, the carriage is moved in the R direction. The position
where the output is changed from H to L is regarded as a home position.
Operation in case of malfunction of photointerrupter A .
Case 1: When the output of photointerrupter remains H.
As is evident from the operation logic, the H output does not continue for a long time in case of normal operation.
Hence, this state is judged to be abnormal. The carriage stops soon after it moves insignificantly.
Case 2: When the output of photointerrupter remains L.
The carriage is going to move according to the operation logic. Since the output remains L even when the sensor
passes through the slit B , the home position cannot be found, and the carriage moves continuously in the R direction.
Finally, it contacts the frame C , emitting an abnormal sound. The abnormal state is detected, and the motor stops.
– 6 –
UX-2200CMU/CMC
FO-2150CMU/CMC
[5] Overall Trouble Shooting Of Printer PWB
• BOTH CARRIAGE MOTOR AND FEED MOTOR
ARE NG.
FUSE “F100” AND “F101
OK
+24V AT Q1-C (Figure 1)
OK
OPEN
NG
REPLACE F100 AND F101
+24V AT Q1-E (Figure 1)
OK
+5V AT Q101-B (Figure 2)
OK
0V AT Q101-C (Figure 2)
OK
CHECK RESISTANCE
BETWEEN +24V AND GND.
NG
SHORT OR NOT
REPLACE PRINTER PWB
CHECK IC5 AND IC8 AND
NG
R145,R144
REPLACE PRINTER PWB
REPLACE Q101 (Figure 2)
NG
CHECK +24V PATTERN
NO
SHORT
REPLACE IC5 OR IC8
NG
OK
CHECK IC5 AND IC8
OK
REPLACE PRINTER PWB
NG
REPLACE Q1 (Figure 1)
REPLACE IC5 OR IC8
Q1
FRONT
VIEW
B C E
Figure 1 Figure 2
Q101
C
FRONT
VIEW
BE
– 7 –
Loading...