TRC_PRINTER_LJ &DJ
For Lazer & Desk Jet Printers
posted by Rajnish @ 9:13:00 AM
Thursday, October 25, 2007
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42 Comments:
dear ?????
one HO color laserjet 3700dn is giving fuser error......
i reinstall the fuser after cleaning it but problem still persist....
is there some method to check wether the fuser is Ok or faulty?????
Pls suggest me.
Dear
In 3700 fuser Assemblly resistance between big first two pins should be 12-60 Ohm & in small first two pins 30-330 KOhm in power connector of fuser .
Alok Srivastava
POINTS TO BE REMEMBER
MULTIMETER SHOULD BE IN THE TOOL KIT OF
EVERY ENGINEER
SITE VOLTAGE SHOULD BE
LINE- EARTH = 220 - 240 V
LINE –NEUTRAL = 220- 240 V
NEUTRAL- EARTH = 0 – 3 V
PREVENTIVE MAINTENANCE SHOULD BE DONE
IN EVERY QUARTER
DO NOT CONNECT AND DISCONNECT THE INTERFACE CABLE WHEN PRINTER IS ON .
T2250
HARWARE ALARM ERROR
HARDWARE
ALARM Code Task Current Action
1 Horizontal Task Active
2 Horizontal Task Motor has been accelerated
4 Horizontal Task Motor brake on
8 Vertical Movement Active
16 Color Motor Active
32 Motor Function Select Active
64 Motor Automatic Single Feed Active
128 or 128B Setting Print head Clearance AGA delivers no correct signal
256 Paper Transport Auto Sheet Feed Active
512 Bell (sound) Active
1024 Shift Magnet (Inside Print head) Active
2048 Line Feed Active
4096 Tear / View Invoked by ESC- Code Active
8192 Paper load Active
16384 Paper Eject Active
32768 Tear / View Active
COMMON ERROR AND THEIR RECTIFICATION
Hardware Alarm 02/Head stucking
Check Head Cable continuity
Check Encoder Sensor (by checking its cable continuity)
Check Encoder strip( visually whether there is spot or not)
Check Carriage motor( 18 ohm)
AGA Motor continuously moving
Check AGA sensor( cable continuity)
Check Head cable( continuity)
Check AGA motor( 28 ohm/check gear)
Check AGA gear( visually)
No Display
Check 3 amp fuse (power socket)
Check o/p from power supply( + 32 v dc)
Check Logic Card (physically)
Blocks coming on panel(but printer is initializing)
Check control panel cable( continuity)
Check control panel
Blocks coming on panel(but printer is not initializing)
Logic card is faulty
T2250
Two type logic card
1.180 LPI logic card( IC 21 IS present in card)
2.120 LPI logic card(IC 21 IS absent)
Two type encoder sensor
1.180 LPI ( Q written on the sensor)
2.120 LPI ( L written on the sensor)
Two type of encoder strip
1. 180 LPI encoder strip(written in the strip)
2. 120 LPI encoder strip( not written in the strip)
NOTE: THE above three items should be match with each other for error free running of printer
HOW TO LOAD DEFAULT SETTINGS
Press four soft keys together and then switch on the printer
Loading Default initializing will come
T6050/6045
COMMON ERROR AND THEIR RECTIFICATION
HAZZY PRINTING
Clean the shuttle sensor
Do the hammer calibration
Adjust the platen gap
BLK 0 CHECKSUM FLT/BLK 1 CHECKSUM FLT
Firmware problem
Load the firmware (087360.exe)
PAPER MOTION FLT
Clean the paper motion sensor
HAMMER Calibration
press
(1) Line feed +enter key together one beep will come
Message Tech access on display on control panel Offline
(2) press mode key
offline normal
(3)press < arrow key till
offline test will come
(4)press form1 key
test pattern will come
(5)press < arrow till
test diag will come
(6)press CPI 2 key
Diag prnt cal will come
(7) press LPI3 key
Prnt cal hammer will come press enter key 7 or 8 line will print with its frequency. frequency will be come on display
You have to choose best line and select its frequency on the control panel by using up or down arrow key and select it by pressing enter key
This process will be done will the message
Prnt end cal will come on display
They you have to save it
HOW TO SAVE SETTINGE
Offline press mode key
Offline normal will come
press arrow key till offline config will come
press form1 key config printer will come
press CPI2 key printer power up will come
press LPI3 key save power up
press enter key .
PRINTING IS HAZZY OR DISTURBED
(1) cleaned the shuttle sensor with duster only.
(2) Hammer lead time Calibration.
(3) Platen gap disturbed (adjust the gap)
FAULT
MESSAGE
Blk 0 checksum fit.
Blk 1 checksum fit.
Firmware is corrupted
Software
So you have to reload the firmware
HOW TO LOAD THE FIRMWARE
(1) press mode key + down arrow key + linefeed +view key(diagonally key) together. and switch on the printer.
Flash DNL ready will come on control panel
(2) copy the firmware file from cd or floppy disk to system (c drive)
(3) boot the system from dos
(4) type the command
c:>file name.exe.p
press enter
the loading of firmware will be done it will take few minutes.
Faults
(1) shuttle fault
Corrective action
(1) clear the shuttle sensor .
(2) adjusted the platen gap.
(3) check the movement of hammer bank assembly.
(2)PAPERMOTION FAULLT
Corrective action
(1) clean the paper motion sensor
HOW TO BY PASS THE PAPERMOTION FIT BY USING CONTROL PANEL
(1) Offline normal will come
(2) Press up arrow key till offline test will come
(3) Press form1 key test pattern will come press up arrow key test FLT override will come press CPI2 key FLT Override pap mot will come
Press LPI3 key pap mot off * will come press up arrow key pap mot on will come press enter key pap mot on * will come then save it
PRINTRONIX P 5005A/5005B
500LPM
Two type of logic card
PAL IC
1. CFX BOARD 012 ->
2. CMX BOARD 001->
FIRMWARE
Pal IC 012-360100.exe.
Pal IC 001-159086.exe.
Errors for which we reload the firmware
1. table mismatch.
2. security code violation
3. having in diagnostic pass
HOW TO UNLOCK THE ENTER KEY
Press up and down arrow key together message enter key unlocked will come.
How to take the self test
1.first unlock the enter key
2.In offline press right arrow till diagnostic is not come
3.press down arrow key
Diagnostic printer test will come
4.press down arrow key again
Printer test shift recycle will come
5.press enter key it will print the self test
6.To stop the self test press enter again
HOW TO DO PHASING
1.First go to the printer test Shift Recycle
2.Press right arrow key till
Printer test phase printer is not come
3.Press down arrow key
Phase printer 200* (for example)
4.press again down arrow key
It will show 200*
5.choose the correct or approximate value by using left or right arrow key
6.press enter key to select it
7.when 80*(for example the value written in the shuttle)
8.press up arrow key
Phase printer 80* will come
9. press again up arrow key
Printer test phase printer will come
10.press enter key it will print the new selected value
HOW TO SAVE THE SETTING IN P5005 A/B
1.First unlock the enter key
2.In offline config control will come
Press down arrow key
3.config control load config will come
4.By using right arrow key go in to the config control save config
5.press down arrow key
Save config 1* (for example) will come
6. press enter key
Saving configuration will come
7. press up arrow key and go into the load config
8.press down arrow key
Load config 1* will come
9.Press enter key loading configuration will come
10.press up arrow key and go in to the power up config by
Using right arrow key
11.press down arrow key
Power up config 1* will come
12.press enter key
Power up configuration will come
HOW TO LOAD THE FIRMWARE IN THE P5005
1. Press online key and paper advance key together and switch on the printer
2. Waiting for program download
Message will come
3. Boot the system from dos
4. copy the firmware file into c:>prompt
5. type the command
c:>filename.exe –pb and press enter
6. downloading will be done for few minutes
Dear sir,
i have facing a problem with wep laser 2500 A4 size printer
automaticlly page skipping in the laser printer as a dmp printer. one page printout print in the five page. some correcter print first page some second etc...
i am already changed power supply, hvps, lvps, logic card and scanning assy.
please sir suggest and help me..
sir please suggest and help me.
dear sir,
i have facing a problem with hp desinjet 1000 printer. megenta light regular blink.
catrige, head and service station repleced but same. probem.
please suggest and help me.
dear sir,
hp laser jet 1100 printer not initilize i have found a paper feed sansor is broken paper feed senor repleced but same issue.
please suggest and help me.
Hemant paliwal
Udaipur sysnet
dear sir,
I have facing a problem with t6050
is a garbase print out . i have change a two printer cable and installed a genric printer driver machine repleced, printer imulation change but not solve the problem pls. suggest and help me.
hemant paliwal
dear sir,
I have facing a problem with 4550dn colour laser printer. printer size is maximum lenth legal but coustomer print A3 size paper. lenth is A3 and width is A4 size paper. A4 size paper complete print . but A3 size paper mai A4 size tak to good print kerta hai or 3inch per fad kar deta hai or vapas ushi page per 2Inch mai good print karta hai.maine costom se bhi paper size creat kari magar legal size se jyada size creat nahi hoti hai.
i have clean the drum unit, scanning assy. and transfor belt but same issue. i am calling the hp and says a all story and hp says yeh to kismat ki baat hai ki jab tak chal reha tha acha tha hp 4550 mai A3 size ko support nahi karti hai but coustomer says ki 6 month se printter chal reha hai or yehi page print hota hai.
so please help and suggest me.
Hemant Paliwal
Udaipur Sysnet
Dear sir,
i have facing problem with hp laser 4250n. double print shade on the paper in any print. self test or windows print. i have change the toner and clean the pressure roller but same issue.
so please suggest and help me.
Dear Jasdev
1- Pl check Driver properties for resolving Page skipping problem in wep 2500 .
2- in designjet 1000 pl check turling cable ( Head cable ) for megenta light blinking after replacing Cartridge, Head & Service station .
3- In Laser 1100 pl check sensor status fixed front of fusser assembly Heater .
4- In 6050 pl check shuttle sensor for garbage printing if also in self test .
5- Pl save the printer setting first & remove the network card & cold reset the printer by pressing Go Button ( Right Indicator ) .After reset you have to reenter the settings .
6- In LJ 4250 N pl grease inside the teflon .
Alok
Dear sir
driver check but printer page skipping in self test in wep 2500.
so please sugges me.
Hemant paliwal
Udaipur sysnet
Dear sir,
printer self test ok in the t6050 .
i have clean the suttle sensor or data cable repleced but same issue i have change a one another machine. but same issue. so please suggest me.
hemant paliwal
Pl save the printer setting first & remove the network card & cold reset the printer by pressing Go Button ( Right Indicator ) .After reset you have to reenter the settings
Dear sir,
Thanks for suggest me but sir i have already all process run in the printer but same issue.and i am found transfor charging belt faulty in the printer. {4550 colour laser} and t.b. belt and drum assy. repleced and check printer woring ok.
How does a laser printer work?
Step 1: Incoming data First, the computer sends data to the printer. But it doesn’t just barrel ahead—it queries the output port to make sure a printer is attached and ready. The printer
sends a signal back on the strobe line (pin 1) for parallel or DTR (line 20) for serial interface, indicating it is ready for data.
Next, if the print job needs any fonts that the printer does not have in residence(such as TrueType fonts), those are sent to the printer and stored in its memory.
Then, the print job itself is sent and stored. If the job is larger than the printer’s memory can accommodate, the OS either waits (as with single-tasking OSs such as
DOS) or uses its own print spooler to feed the remainder of the job to the printer (as with Windows). Some printers come with their own custom software that includes a
print spooler that takes over instead of the one in the OS.
Laser printers fall under the category of page printer because they compose the entire page in their memory and then transfer it to paper. A full page with graphics
occupies on average 512 KB of memory, so a decent laser printer should have at least 1 MB of memory to store at least one page plus any associated fonts. Printers
with more memory can hold multiple pages of a print job in their memory, which offloads the print job more quickly from the OS.
Step 2: Drum preparation
The single largest part of the laser printer is the drum, an aluminum cylinder coated
with photosensitive material. In preparation for printing, the drum must be cleaned to remove any traces of previous pages. First, a rubber blade wipes the excess toner
from the drum, and then erase lamps (in older models) or a charged drum (in newer models) electrostatically clean it by neutralizing residual electrical charges on it.
Note :After the cleaning, the printer conditions the drum to receive the next image by applying a uniform negative charge of -600v to its surface. The primary corona (in the toner cartridge) performs this function in some printers; in other models another charged drum does it. The primary corona is a thin wire; there are several corona
wires involved in the print process. The primary corona must emit a charge of - 6,000v in order to apply a -600v charge to the drum. That is some seriously high
voltage!
Note : The negative charge applies evenly across the photosensitive drum because a varistor grid filters it. Varistor gets its name from the term variable resistor: It does not conduct electricity until a specific voltage level is achieved.
Step 3: Drum writing
Now comes the important part: The data in the printer’s memory is written to the drum using a laser. Rather than writing it with ink or toner, however, it writes by
shining a very precise laser on the photosensitive drum in certain spots, changing the electrical charge in those spots. As the drum cylinder rotates past the laser, it
sweeps across the surface, turning on and off to neutralize certain areas to about - 100v. These neutralized areas will be the spots where toner adheres to the drum later in the process and then transfers to the paper.
Step 4: Paper feed Now it’s time for the paper to join in. Feed rollers draw the paper into the printer from the paper tray. Registration rollers hold the paper until it’s time for it to be
released, making sure that the top of the paper feeds in exactly at the moment when the laser image of the page that’s on the drum rotates past it.
Step 5: Toner pickup
Steps four and five occur more or less simultaneously: As the paper is being drawn
in, the toner is being applied to the drum.The toner cartridge contains a rotating, magnetic, metal-developing cylinder, a toner
reservoir, and a height control mechanism that limits the amount of toner the cylinder can pick up at a time. Toner consists of plastic resin particles (the particles that melt to produce the image on paper) and iron oxide (the particles that are
affected by magnetic attraction and electrical charges). The toner’s metal particles
adhere to the magnetic cylinder, and the cylinder presents the toner to the drum as it passes by. The developing cylinder is charged to -600v, like the blank portions of the photosensitive drum, and the toner adhering to the cylinder also takes on that same charge.
As the drum passes by the cylinder, the toner ignores all the areas charged to -600vbecause that’s the same charge as itself. It jumps off and clings to the areas with the lesser charge (-100v), however, and that’s what makes the toner stick to the drum.
Step 6: Toner transfer to paper
At this point, the image exists on the drum, complete with toner. If you could look inside the printer as it operates (you can’t, by the way, because of the safety
features in place) and stop the drum from rotating for a mo ment, you could see the page on the drum, just as it is to be printed.
As the paper feeds into the printer, the transfer corona applies a +600v (positive)
charge to the paper. When the paper passes by the drum, the -100v charged toner on the drum jumps off onto the positively charged paper. Then, the paper runs past
a static charge eliminator, which is a row of teeth with a negative charge that reduces the paper’s highly positive charge.
Step 7: Fusing the toner to the paper The image is now on the paper, but it’s not secure there; it’s just loose toner held in
place by gravity and a weak electrostatic charge. For permanent application, it must
be fused. Fusing is basically melting the toner’s plastic particles so they stick, or
fuse, to the fibers in the paper.
The fuser roller is a nonstick cylinder with a high-powered lamp inside it that heats
the paper to around 330 to 355 degrees Fahrenheit. As the paper passes by it, the toner melts. A fabric or felt-cleaning pad, in constant contact with the fuser roller, helps keep it clean
The final part of the fusing assembly is the pressure roller. It’s a rubber roller that
presses against the fuser roller; the paper feeds between it and the fuser roller on its way through the printer. The fuser roller can leave an indent on the softer pressure roller because of the heat it produces, so the printer’s internal software will rotate
the assembly periodically to keep this from happening.
Each printer has built-in sensors at critical points
that check whether the paper is in the right place for that step to occur. The printer knows how long it should take for the paper to move from one sensor to the next,
and if the paper is delayed, the printer gives you a paper jam message
Alok
hello all
I am facing a problem in HP laserjet p1007 model while printing. In print queue " IPFast Print" occurs & as long it is there no other print is printed from local PC or Network printing
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