HP Laserjet 5 Service Manual

Printing an Engine Test
The engine test print can be used to verify that the print engine is functioning
correctly. The Formatter PCA is completely bypassed during an engine test.
Consequently, this test is useful for isolating engine printer problems. The engine
test prints a full page of vertical lines down the entire printable area. This page is
useful for checking and adjusting registration.
NotePerform the engine test with the printer covers in place, as shown in Figure 3-6.
Refer to “Engine Test”...

Resetting the Printer
Resetting the printer accomplishes the following:
·Clears all data from the printer’s memory (including unprinted data, downloaded
fonts, and macros).
·Stops any printing that is taking place and ejects the page.
·Removes some error conditions.
·Resets the printer to its factory default settings.
To Reset the Printer
Press and hold the Front Panel Button until the three control panel lights blink
quickly in succession (about 5 seconds), then let go of the button. After resetting,...

3-12 Operating Overview 

4
Printer Maintenance
Contents
Life Expectancy of Consumables . .  . .  . .  . .  . .  . .  . .  . .  . .  . .  . .  . . 4-3
Toner Cartridge Life . .  . .  . .  . .  . .  . .  . .  . .  . .  . .  . .  . .  . .  . .  . . 4-4
Saving Toner with EconoMode .  . .  . .  . .  . .  . .  . .  . .  . .  . .  . .  . . 4-4
Refilled Toner Cartridges . .  . .  . .  . .  . .  . .  . .  . .  . .  . .  . .  . .  . . 4-5
Recycling Toner Cartridges .  . .  . .  . .  . .  . .  . .  . .  . .  . .  . .  . .  . . 4-5
Cleaning...

4-2 Printer Maintenance 

Life Expectancy of Consumables
Always inspect the components listed in Table 4-1 for wear when servicing the
printer. Replace these components as needed, based on printer failures or wear, not
strictly on usage.
Description HP LaserJet 5L
Part NumberHP LaserJet 6L
Part NumberEst Life
(pgs)Remarks
Toner Cartridge
(user replaceable)C3906A C3906A 2,500* When print becomes
faint, shake cartridge to
distribute remaining
toner.
Transfer Roller RF5-1534-000CN RF5-1534-000CN 50,000 May affect print quality...

Toner Cartridge Life
The toner cartridge has been designed to simplify the replacement of the printer’s
major “consumable” parts. The toner cartridge contains the printing mechanism and
a supply of toner. When using a typical word-processing application, a toner
cartridge will print approximately 2500 pages where the text covers about 5% of the
page.
Five Percent Text Coverage
When regularly printing pages with less coverage, such as short memos, a toner
cartridge should print over 2500 pages. However,...

proofs. EconoMode can be set through your printer driver. See Chapter 3 for
information.
NotesSome software applications may refer to this as “draft mode.
Refilled Toner Cartridges
While Hewlett-Packard does not prohibit the use of refilled toner cartridges during
the warranty period or while under a maintenance contract, we do not recommend
their use. The reasons for this are:
·Hewlett-Packard has no control or process to ensure that a refilled toner cartridge
functions at the high level of reliability...

Cleaning the Printer
To maintain the print quality, thoroughly clean the printer:
·Every time you change the toner cartridge.
·After printing approximately 2,500 pages.
·Whenever print quality problems occur.
Clean the outside of the printer with a lightly water-dampened cloth. Clean the
inside with only a dry, lint-free cloth. Observe the warnings and cautions below.
WARNING!Before you begin these steps, unplug the printer to avoid shock hazard.
When cleaning around the front door area, avoid touching...

Cleaning Printer Components
CAUTIONTo avoid permanent damage to the toner cartridge, do not use ammonia-based
cleaners on or around the printer. Do not touch the transfer roller with your fingers.
Contaminants on the roller can cause print quality problems.
COMPONENT CLEANING METHOD/NOTES
Outside Covers Use a water-dampened cloth. Do not use solvents or
ammonia-based cleaners.
Inside General Use a dry, lint free cloth. Remove all dust, spilled toner, and
paper particles.
Exit Roller Use a water-dampened...