دليل استكشاف أخطاء جودة الطباعة وإصلاحها

تشتت الخلفية

عينة	Problem	Possible Cause	Solution
	background scatter	Fuser assembly is bad	Do a half-way test to determine if it is the fuser
	background scatter	Transfer Roller is dirty or worn. A worn Transfer Roller can cause background scatter due to improper bias voltages.	Replace the transfer roller.
	background scatter	Toner cartridge is defective	Install a new toner cartridge

خطوط سوداء (متوازية أو متعامدة)

عينة	Problem	Possible Cause	Solution
	black lines – parallel or perpendicular	If the lines are repeated at a consistent interval down the page, this is a repetitive defect.	See the Repetitive Image Defect Ruler in the service manual to measure and determine source of lines.

صفحة سوداء

عينة	Problem	Possible Cause	Solution
	black page	Defective toner cartridge	Install a new toner cartridge
	black page	High voltage power supply circuit is defective (not supplying the correct negative voltage)	Replace the High Voltage Power Supply PCA
	black page	DC controller PCA is defective. If the DC Controller turns on the laser beam continuously, the entire surface of the Photosensitive drum is neutralized causing a completely black page.	Replace the DC Controller PCA

صفحات سوداء ، كل الصفحات

عينة	Problem	Possible Cause	Solution
	blank page – all pages	No toner is available for print	Remove sealing tape on toner cartridge, or replace the toner cartridge if necessary.
	blank page – all pages	Malfunctioning laser shutter	Perform a half-way test and see if there is an image on the imaging drum. If there is no image on the drum, check the laser shutter for correct operation when inserting the toner cartridge.
	blank page – all pages	No transfer roller voltage	Perform a half-way test and see if there is an image on the imaging drum. If there is an image on the drum, make sure the transfer roller is installed. Without transfer roller voltage, toner cannot be attracted from the surface of the drum to the print media. Replace the transfer roller if necessary.
	blank page – all pages	No developing bias	Perform a half-way test and see if there is an image on the imaging drum. If there is no image on the drum, clean the high-voltage power supply contacts. With no developing bias charge, toner is not attracted to the drum. Replace the engine controller board if necessary.
	blank page – all pages	Defective laser scanner cable	Perform a half-way test and see if there is an image on the imaging drum. If there is no image on the drum, low-level signals exchanged between the laser/scanner assembly and the engine controller board could theoretically affect laser output. Replace the laser/scanner cable assembly if necessary.

صفحات سوداء ، من حين لآخر

عينة	Problem	Possible Cause	Solution
	blank page – occasional	Multiple feeds	The printer may be feeding two or more pages at once because the paper is difficult to separate. Flex the paper a bit to help separate before installing in printer.
	blank page – occasional	Software configuration , network configuration	Re-install printer driver. Check paper size settings in software. Check any software/network settings related to printing a blank separator page between jobs.
	blank page – occasional	Malfunctioning paper pickup assembly	The paper pickup solenoids can misfire and intermittently cause the pickup rollers to rotate an extra revolution. This will cause a blank page. Replace or repair paper pickup solenoids.

نقاط فارغة

عينة	Problem	Possible Cause	Solution
	blank spots	Defective toner cartridge	Replace the toner cartridge.
	blank spots	Dirty laser scanner mirrors	Clean the laser scanner mirrors. On some models, this is an advanced procedure; consult the service manual for instructions on accessing the laser scanner assembly.
	blank spots	Contaminated or deformed transfer roller	Replace the transfer roller.

طباعة الفقاعة

عينة	Problem	Possible Cause	Solution
	bubble print	Defective High Voltage Power Supply	Replace the High Voltage Power Supply
	bubble print	Photosensitive drum inside toner cartridge is not grounded	Check for proper mounting of the High Voltage Power Supply, and the HVPS ground contact on the toner cartridge. Check for proper seating of toner cartridge. Replace toner cartridge.
	bubble print	Paper does not meet specifications — moisture content, conductivity, or surface finish may not work correctly with the electrophotographic process.	Try a different paper type
	bubble print	Defective toner cartridge	Replace the toner cartridge.

طباعة مضغوطة

عينة	Problem	Possible Cause	Solution
	compressed print	Drive gear is broken or worn	Inspect and replace the worn gear of assembly
	compressed print	Toner cartridge bushings are too tight	Replace the toner cartridge

تلوث على الظهر

عينة

Problem

Possible Cause

Solution

contamination on back

Contamination inside printer

1. Print at least 10 pages to see if the problem goes away on its own.

2. Print a cleaning page (consult User’s Guide/ Service Manual.)

3. Identify and clean the contaminated part, or better yet, replace the contaminated part if replacements are orderable.

4. If contamination continues, check toner cartridge for leaks. Replace cartridge.

compressed print

Print media does not meet printer specifications, or is stored improperly.

1. Print a few more pages to see if the problem corrects itself.

2. Turn over the stack of media in the tray. Also try rotating the media 180 degrees.

3. If the print media does not meet HP specifications, replace the paper, and advise the customer to use the recommended print media and store it properly.

التجاعيد

عينة	Problem	Possible Cause	Solution
	creases	Paper is loaded incorrectly.	Make sure print media is loaded into tray correctly, and that the tray guides are adjusted properly to fit against the paper stack.
	creases	Determine the cause by performing a half-way test to isolate the defective component.	Replace defective component. Common possibilities include slipping paper pickup assembly, slipping feed assembly, slipping fuser assembly.

لفة

عينة	Problem	Possible Cause	Solution
	curl	Print media does not meet printer specifications or is stored improperly.	1. Print a few more pages to see if the problem corrects itself. 2. Turn over the stack of media in the tray. Also try rotating the media 180 degrees. 3. I the print media does not meet HP specs, replace the paper.
	curl	Wrong fuser setting for print media type	From the paper-handling menu on the control panel, change the fuser mode setting or choose another paper type from the printer driver.
	curl	Wrong output bin	Print to a different output bin (top or rear output bin).

صورة مشوهة

عينة	Problem	Possible Cause	Solution
	distorted image	Defective engine controller board	Replace the engine controller board
	distorted image	Defective laser scanner	Replace the laser scanner
	distorted image	Poor connection of cables to the engine controller board	Reseat the cables connected to the engine controller board
	distorted image	Print media does not meet printer specifications or is stored improperly	1. Print a few more pages to see if the problem corrects itself. 2. Turn over the stack of media in the tray. Also try rotating the media 180°. 3. If the print media does not meet HP specifications, replace the paper, and advise the customer to use the recommended print media and store it properly

عيوب طباعة طابعة الليزر – المتسربون

عينة	Problem	Possible Cause	Solution
	dropouts	Failing toner cartridge, or wrong toner density setting	Replace toner cartridge, or wrong toner density setting
	dropouts	Failing upper fuser roller in fuser	Replace fuser
	dropouts	DC Controller is defective (low primary voltage)	Replace the DC controller
	dropouts	High Voltage Power Supply is defective	Replace the high voltage power supply
	dropouts	Transfer roller is defective	Replace the Transfer Roller

طباعة باهتة مع الفقاعات

عينة

Problem

Possible Cause

Solution

fading print with bubbles

Toner cartridge drum not grounded properly

With no ground path, the drum cannot discharge. The negative charge on the drum repels toner and leaves a white page with bubble print.

1. Replace toner cartridge.

2. Check the drum ground spring and reconnect it, if necessary.

3. Replace the engine controller board

طباعة باهتة

عينة	Problem	Possible Cause	Solution
	fading print	Toner supply is low , failing	Shake the cartridge gently to redistribute the toner, or replace the cartridge
	fading print	Transfer roller is defective or incorrectly installed. If the Transfer roller loses conductivity, it cannot effectively pull toner from the drum to the paper	Inspect the Transfer Roller for proper installation and contact. If the Transfer Roller is damaged, replace it
	fading print	Laser mirror is dirty or shutter is not functioning	Clean the scanner mirror. Check the Laser/Scanner shutter door for proper operation. If defective, replace the Laser/Scanner Assembly.
	fading print	Print density is set incorrectly	Change to a darker setting and retry printing
	fading print	EconoMode is on. (EconoMode saves toner by reducing the dot density. This may appear to be a print quality problem in some cases.)	Turn EconoMode off. EconoMode settings are stored in either the printer driver or the job application.

التسجيل الخاطئ

عينة	Problem	Possible Cause	Solution
	Faulty registration	Paper guide on the paper tray is incorrectly adjusted.	If the guide is pushing too tightly against the paper, it may be delayed in being pulled into the printer. If the guide is too loose, it may cause image skewing. Make sure that the paper guide is adjusted for the correct paper size and is locked into position.
	Faulty registration	Paper is being picked up skewed; worn pickup , feed, or registration rollers.	Inspect all paper path rollers, looking for wear, cracks, or glazing. Replace worn rollers.
	Faulty registration	Paper tray is overloaded. If the tray is overloaded, the Pickup Rollers may not pick correctly.	Reload proper amount of paper squarely in the tray. Review paper loading with the customer.

خلفية رمادية

عينة	Problem	Possible Cause	Solution
	Gray background	Faulty toner cartridge	Replace the toner cartridge
	Gray background	High voltage power supply failure	Replace high voltage power supply
	Gray background	Formatter failure	Replace formatter
	Gray background	Wrong toner density setting	From the print-quality menu on the control panel, adjust the toner density setting.

خطوط أفقية سوداء

عينة

Problem

Possible Cause

Solution

Horizontal black lines

Defective laser scanner assembly or engine controller board

1. See the “Repetitive defect ruler”

2. Reseat connectors on the laser scanner and engine controller board.

3. Replace the laser/scanner assembly followed by the engine controller board, if necessary

لطخات أفقية

عينة

Problem

Possible Cause

Solution

Horizontal smudges

Paper path contamination or damage

1. See the Repetitive defect ruler.

2. Check the toner cartridge and replace it if necessary.

3. Check the fuser and replace it, if necessary

عيوب طباعة طابعة الليزر – خطوط بيضاء أفقية

عينة	Problem	Possible Cause	Solution
	Horizontal white lines	Defective toner cartridge	Replace the toner cartridge
	Horizontal white lines	Dirty / defective laser scanner assembly	Clean laser scanner mirrors. Replace scanner assembly if necessary.
	Horizontal white lines	Defective DC controller	Replace DC controller

انحراف الصورة

عينة	Problem	Possible Cause	Solution
	Image skew	Pickup roller are worn. Paper is being fed at a skewed angle.	Inspect all paper path rollers, looking for wear, cracks or glazing. Replace worn rollers.
	Image skew	Paper size adjustment levers are not in correct position	Verify position of paper size adjustment levers, and correct
	Image skew	Paper is loaded incorrectly. If paper is not installed flush and tight in the paper tray, a skewing problem will result.	Remove paper from the tray, and install paper correctly. Position the paper guide correctly for the paper size being used.
	Image skew	Failing registration assembly	Replace registration assembly

طباعة فاتحة أو طباعة داكنة أو تتلاشى

عينة	Problem	Possible Cause	Solution
	Light print, dark print, or fade	Toner cartridge is low or failing	Replace the toner cartridge
	Light print, dark print, or fade	Toner cartridge is low or failing	Reinstall transfer roller, making sure it is fully seated. Replace transfer roller if necessary.
	Light print, dark print, or fade	Dirty laser scanner, or defective laser scanner	Clean laser scanner mirrors. Replace laser scanner if necessary.
	Light print, dark print, or fade	Poor contact from toner cartridge to engine controller board, or failing engine controller board, or failing high voltage power supply	1. Ensure that the drum ground spring is connected to the engine controller board correctly. 2. Clean the contacts if they are contaminated. If the problem remains after cleaning, or parts are damaged or deformed, replace them. 3. Replace the engine controller board. 4. Replace the high voltage power supply.
	Light print, dark print, or fade	Wrong toner density setting, or EconoMode setting	From the Print Quality menu, adjust the toner density setting. Make sure EconoMode is off.

مسحوق حبر سائب

عينة	Problem	Possible Cause	Solution
	Loose toner	Defective , failing fuser	Replace the fuser
	Loose toner	Toner cartridge is defective	Replace the toner cartridge
	Loose toner	Wrong fuser setting for paper type	Paper type settings control the heat of the fuser and bonding of the toner. From the paper-handling menu on the control panel, change the fuser mode setting or choose a different paper type from the printer driver
	Loose toner	Toner spill contamination inside the printer	Print a few more pages to see if the problem corrects itself. Clean the inside of the printer or use the printer’s cleaning page.
	Loose toner	Paper type might be unusable (too thick, too smooth, etc).	Try an alternate paper type

أحرف مشوهة

عينة	Problem	Possible Cause	Solution
	Misshapen characters	Defective , failing fuser assembly	Replace the fuser
	Misshapen characters	Laser scanner assembly is defective	Replace the laser scanner assembly
	Misshapen characters	Failing drive gears causing fuser rollers to “slip” when bonding	Listen for excessive drive gear noise; examine drive gears for wear. Replace if necessary.
	Misshapen characters	Failing transfer roller	Clean or replace transfer roller
	Misshapen characters	Paper surface is too smooth for proper toner adhesion	Try an alternate paper type with different surface
	Misshapen characters	Paper surface is too rough; toner migrates to low spots and leaves higher areas void	Try an alternate paper type with different surface

صفحة فارغة جزئية

عينة	Problem	Possible Cause	Solution
	Partial blank page	Toner cartridge is failing	Replace the toner cartridge
	Partial blank page	Unseated transfer roller	Check transfer roller to ensure proper installation
	Partial blank page	Dirty laser scanner, or defective laser scanner	Clean laser scanner mirrors. Checker shutters for correct operation. Replace laser scanner if necessary.
	Partial blank page	Failing engine controller board, failing high voltage power supply	1. Ensure that the drum ground spring is connected to the engine controller board correctly. 2. Clean the contacts if they are contaminated. If the problem remains after cleaning, or parts are damaged or deformed, replace them. 3. Replace the engine controller board. 4. Replace the high voltage power supply.
	Partial blank page	Page is too complex or not enough memory	Memory overflow error should occur, or “page too complex” error. Try an alternate print driver. Add printer memory if necessary.

عيوب متكررة

عينة	Problem	Possible Cause	Solution
	Repetitive defects	Defective toner cartridge	Perform a half-way test. Replace the toner cartridge if necessary.
	Repetitive defects	Defective fuser	Perform a half-way test. Replace the fuser if necessary.
	Repetitive defects	There are a variety of causes for repetitive defects. Check the repetitive defects ruler.	See repetitive defect ruler.

انحراف

عينة	Problem	Possible Cause	Solution
	Skew	Print media is not loaded correctly, or trays are not adjusted properly.	1. Make sure paper is loaded straight/neatly/correctly. 2. Make sure paper tray is not filled past capacity. 3. Ensure the paper guides in the tray fit properly against the paper.
	Skew	Paper pickup / feed rollers are worn and feeding paper at a skewed angle	Check pickup / feed rollers for wear. If possible, print from a different tray / paper path to verify that only rollers in that path are failing. Replace worn rollers.
	Skew	Registration assembly is failing	Replace registration assembly if necessary
	Skew	Object blocking paper path	Check the paper path for obstruction
	Skew	Laser scanner assembly is failing.	Replace laser scanner assembly if necessary

مسارات الإطارات

عينة	Problem	Possible Cause	Solution
	Toner smear	Failing toner cartridge	Replace toner cartridge
	Toner smear	Contamination on paper pickup / feed rollers	Clean or replace rollers.

مسحة الحبر

عينة	Problem	Possible Cause	Solution
	Toner smear	Failing toner cartridge	Do halfway test to isolate the problem. Replace toner cartridge
	Toner smear	Fuser assembly has toner buildup, or is failing.	Do halfway test to isolate the problem. Run some more pages to try to clear the toner buildup. If needed, replace fuser
	Toner smear	Toner spill contamination in the printer	1. Print a few pages to see if the problem corrects itself. 2. Clean the inside of the printer or use the printer’s cleaning page.
	Toner smear	Wrong fuser setting for paper type	From the paper-handling menu on the Control Panel, change the fuser mode setting or choose another paper type from the printer driver.
	Toner smear	Defective DC controller. (DC controller regulates fuser temperature).	If a replacement fuser doesn’t solve the problem, replace DC controller PCA.
	Toner smear	Paper type may be unusable (too smooth, too thick, too rough)	Try a different paper type

بقع الحبر

عينة	Problem	Possible Cause	Solution
	Toner specks	Failing toner cartridge	Replace toner cartridge
	Toner specks	Failing toner cartridge	1. Print a few pages to see if the problem corrects itself. 2. Clean the inside of the printer or use the printer’s cleaning page.
	Toner specks	Failing toner cartridge	Do halfway test to isolate the problem. Run some more pages to try to clear the toner buildup. If needed, replace fuser

خطوط سوداء عمودية

عينة	Problem	Possible Cause	Solution
	Vertical black lines	Defective toner cartridge	Very common — Install another toner cartridge or perform a halfway test to isolate the problem. Replace toner cartridge if necessary.
	Vertical black lines	Worn , failing fuser film	Somewhat common — Perform a halfway test to isolate the problem. Check fuser film for tearing or wear. Replace the fuser if necessary.
	Vertical black lines	Defective formatter generating a “video line”	Less common — Replace formatter if necessary
	Vertical black lines	Faulty DC controller or high voltage power supply	Less common — Replace DC controller , high voltage if necessary

النقاط العمودية

عينة	Problem	Possible Cause	Solution
	Vertical dots	Defective toner cartridge	Replace toner cartridge
	Vertical dots	Defective engine controller board	Replace engine controller board
	Vertical dots	Deformed or deteriorated transfer roller	Replace the transfer roller
	Vertical dots	Faulty DC controller or high voltage power supply	Replace DC controller , high voltage if necessary

خطوط بيضاء عمودية

عينة

Problem

Possible Cause

Solution

Vertical white lines

Failing toner cartridge

Very common — Try gently shaking the cartridge to redistribute the toner. If the problem continues, replace the toner cartridge.

Vertical white lines

Contamination in the laser path

Somewhat common —

1. Clean the laser scanner mirrors and lens.

2. Replace the laser / scanner assembly.

بقع بيضاء على الأسود

عينة

Problem

Possible Cause

Solution

Vertical white dots

Defective toner cartridge

Replace the toner cartridge

Vertical white dots

Defective high voltage power supply (HVPS) or fuser.

1. Print a few more pages to see if the problem corrects itself.

2. Make sure that print media type and quality meet HP specifications.

3. Make sure that the environmental specifications for the printer are being met.

4. Replace the toner cartridge, HVPS, or fuser.

خطوط بيضاء موازية للمسار

عينة	Problem	Possible Cause	Solution
	White stripes parallel to path	Failing toner cartridge	Replace the toner cartridge
	White stripes parallel to path	Failing transfer roller	Replace the transfer roller