Home » HP Manuals » Printers » HP Deskjet 1220c » Manual Viewer

HP Deskjet 1220c Support Guide - Page 118

Left Hand Side, Right Hand Side, System Level Block Diagram Electrical, Logic Board Signal Flow - drivers

Add to My Manuals
Save this manual to your list of manuals

Page 118 highlights

SYSTEM LEVEL BLOCK DIAGRAM (ELECTRICAL) LOGIC BOARD SIGNAL FLOW USB Connector USB Interface IEEE 1284 Interface BDM Connector ACLK ASID ASOD ALOAD Reset Top Door Sensor Arabian Analog ASIC +5V Output Supply +3.3V Output Supply +18V Input Supply Centronic Connector To Personal Computer USB/Centronic Connector Flash 2x1Mx16 ROM_Addr[1:21] ROM_DATA[0:15] ROM_CONTROL[0:3] Helios C Digital ASIC EEClk EEData EEPROM 1024 x 8 Bytes BDM Interface Signals SDRAM_Addr[0:13] SDRAM_DATA[0:15] SDRAM_CONTROL[0:8] XI XO Escher Logic Board GPIO Assignment 0 KP_Cancel Button 1 USB_Enable 2 HumidFast 3 BackDoorSensor 4 PwrLED 5 MagicLED 6 InkLED 7 KP_MagicButton 8 PwrButton 9 TopDoorSensor 10 PaperSensor 11 PSM_nEnable 12 PwrOn 13 RampMotorEnable 14 IndexMaker 15 Mechless Back Door Sensor SDRAM 1x4Mx16 Key Panel x2 Power x7 Magic Power ON/OFF Signal Flow (1) User press Power Button on Key Panel (2) Power Supply Module (PSM) activate "PSM_nEnable" (3) Escher Logic Board activate/deactivate "PSM_On" to turn ON/OFF PSM. Ink Cancel Service Station (LEFT HAND SIDE) 15.975MHz Crystal Oop Sensor x5 Line Feed Motor Driver Output Ramp Motor Driver Dudley III ASIC Interface Signals Trident+ ASIC Interface Signals 24 Ways Flex connected to Carriage Board Connector connector 24 Ways Flex Power +32V Input Supply (A) (B) (C) PSM_nEnable PSM_On 30 Ways connector (A) To Service Station Motor & Fan (B) To Line Feed Motor (C) To Output Ramp Motor (2) (3) (1) +18V/+32V from Power Supply Module To Power Supply Module - Power Switch Status Sense Power Supply Moule x2 x5 x2 x2 Output Ramp Motor Line Feed Board Line Feed Motor (RIGHT HAND SIDE) Carriage Motor Lee Chin Kang 29 September 1999 RevA

Section	Page
Table of Contents	3
List of Tables	9
List of Figures	11
List of Trees	13
Preface	15
Conventions	16
Chapter Descriptions	17
Product Information	19
Product Overview	20
Product Positioning	20
Model and Serial Number	20
Technology Update	20
Printer Description and Features	22
External View	27
Specifications	29
Hewlett-Packard Print Cartridge Specifications	29
Printable Area	29
Safety and Regulatory Notices	30
Print Cartridge Safety	30
Material Safety Data Sheet (MSDS)	31
LED Safety	31
FCC Regulations	31
Power Cord Statement	32
Declaration of Conformity	33
Energy Consumption	34
Service and Support Information	35
Parts and Supplies	35
Media Products	37
HP Web Support	39
HP Telephone Support	39
HP ASAP	42
HP Express Exchange	42
Warranty	44
Hewlett-Packard Limited Warranty	44
Extent of Limited Warranty	44
Limitations of Warranty	45
Limitations of Liability	45
Local Law	46
Installing and Configuring the Printer	47
Connecting Power to the Printer	48
Printing a Sample Page	48
Connecting the Interface Cable	49
Connecting via a USB Cable	49
Connecting via a Parallel Interface Cable	51
Installing Printer Software	52
Installing from the Starter CD (Recommended)	52
Verifying Communication in Windows	54
Printing a Self-Test Page	54
Checking the Interface Cable Connection	55
Using the Printer on a Network	56
Connecting to an External Print Server	56
Printer Sharing in Windows	57
Uninstalling Printer Software	59
For Windows 95/98/NT 4.0 Users	59
For Macintosh Users	59
Printer Operation	61
Using the Keypanel	62
Printer Buttons and LEDs	62
Using the Control Panel	64
Changing Default Print Settings	64
Restoring Factory Defaults	64
Using the HP DeskJet Control Panel for DOS	66
Installing the HP DeskJet Control Panel for DOS	66
Changing Print Settings in the HP DeskJet Control Panel	66
Using the HP 1220C ToolBox	67
Paper Selection and Paper Loading	69
Selecting Paper	70
Standard Paper	70
Custom Paper	70
Envelopes	70
Cards	71
Thick Cards	71
Labels	71
Transparencies and Slides	71
HP Special Paper	71
Loading Paper in Main (Bottom) Media Tray	72
Loading Paper in Alternative (Top) Media Feed	73
Loading Paper Through Rear Media Feed	74
Clearing Paper Jams	75
Tips for Avoiding Paper Jams	75
Printer Maintenance	77
Cleaning the Printer	78
Using and Caring for Print Cartridges	79
Print Cartridge Icons	79
Cleaning the Print Cartridges	80
Pen Recovery Diagnostic Test	80
Cleaning the Electrical Contacts	82
Tips for Maintaining the Print Cartridges	82
Print Cartridge Life	83
Changing the Print Cartridges	83
Aligning the Print Cartridges	85
Calibration Diagnostic Test	85
Troubleshooting	87
Troubleshooting Strategy	88
Software Troubleshooting	89
Problems with a Network Printer	90
Printer is not Responding	92
Printer Lights Blink	95
Paper Feed Problems	96
Paper Skew	99
A Blank Page is Printed	100
Poor Print Quality	102
Unexpected Results	107
Hardware Troubleshooting	113
Troubleshooting Tools	113
Diagnostic Tools	113
The HP DeskJet 1220C Quick Checkup	114
Troubleshooting Hardware Problems	115
Troubleshooting Power On Problems	116
Troubleshooting Printer Initialization Problems	119
Troubleshooting Using LEDs	122
Troubleshooting Paper Feed Problems	133
Troubleshooting the Self-Test	135
Troubleshooting Paper Eject Problems	141
Troubleshooting Unusual Noises	143
Diagnostic Tools	145
Self-Test	145
Sample Page	146
Single Diagnostic Test	147
Nozzle Pattern Diagnostic Test	148
Pen Recovery Diagnostic Test	149
Calibration Diagnostic Test	150
Extended Diagnostic Test	152
Dot Count Diagnostic Test	153
Pen ID Diagnostic Test	154
Infinite Hs Diagnostic Test	155
Page Alignment Diagnostic Test	156
DeskJet 1220C Software Diagnostic Test Program	158
Removal, Replacement, and Calibration	159
Removal and Replacement Strategy	161
Removal and Replacement Tools	161
Before You Begin	161
Tips for Disassembling the Printer	162
Disassembly Sequence	163
Consumer Removable Parts	164
Output Tray	164
Stopper Assembly	164
Cleanout Trough Assembly	165
Parts Serviceable without Calibration	166
Stopper Guides	166
Rubber Feet	167
Access Door Assembly	167
Logic PCA Assembly	168
Left End Cap Assembly	169
Power Supply Assembly	170
Power Insulator	171
Right End Cap Assembly	171
Keypanel PCA	172
Main Logic Harness Assembly	172
Power Switch Harness	173
Hand Grabs	173
Linefeed/Encoder PCA	173
Encoder Disk Assembly	174
Output Belt	174
Encoder Strip	175
Carriage Motor Assembly	176
Service Station Mechanism Assembly	177
Spot Sensor Assembly	177
Pivot Spring and Rocker Plate Spring	178
Rail Cover	179
Starwheels Assembly	179
Output Mechanism Assembly	180
Output Motor Assembly	181
Input Tray Assembly	181
Pick Roller Assembly	183
Serviceable Parts that Require Calibration	185
Carriage Assembly/Carriage Rod	185
Flex Cable	186
Backbone Assembly	187
Upper Paper Guide Assembly	187
Drive Roller Assembly	189
Trough-1 Assembly	190
Right Support Assembly	191
Left Support Assembly	192
Base Plate Assembly	192
Removal of Subassembly Parts	193
Calibrating the Printer	195
Calibration Tool	195
How to Calibrate	195
Parts and Diagrams	199
Exploded View	200
Exploded View Parts List	201
Subassembly Exploded Views	205
Subassembly Exploded Views Parts List	209
Alphabetical Parts List	211
Numerical Parts List	215
Low Usage Kits	219
Appendix	221

Match case Limit results 1 per page

¼´ºµ

6TQWDNGUJQQVKPI

(KIWTG±¹½º±±±$NQEM±&KCITCO±QH±'NGEVTKECN±5[UVGO

7R±UHSODFH±WKH±/RJLF±3&$´±VHH±SDJH Áµ¶¸³

9KTG±*CTPGUU±#UUGODNKGU

&KHFN±WKDW±DOO±FRQQHFWLRQV±WR±WKH±0DLQ±/RJLF±+DUQHVV±$VVHPEO\±DQG±3RZHU±

6XSSO\±+DUQHVV±$VVHPEO\±DUH±VROLG±DQG±WKDW±DOO±FRQQHFWRUV±DUH±DWWDFKHG±ILUPO\±

WR±WKH±ZLUHV³±$OVR±HQVXUH±WKDW±QRQH±RI±WKH±ZLUH±LQVXODWLRQ±LV±ZRUQ±RU±PLVVLQJ³

7R±UHSODFH±WKH±0DLQ±/RJLF±+DUQHVV±$VVHPEO\´±VHH±SDJH Áµ¶À³±

7R±UHSODFH±WKH±3RZHU±6XSSO\±+DUQHVV±$VVHPEO\´±VHH±SDJH Áµ¹»³

Power Supply

Moule

(A)

ROM_DATA[0:15]

SDRAM_DATA[0:15]

EEPROM

1024

8 Bytes

EEData

EEClk

Arabian

Analog

ASIC

ACLK

ASID

ALOAD

+5V Output Supply

+3.3V Output Supply

Reset

+18V Input Supply

Line

Feed

Motor

Driver

Output

Ramp

Motor

Driver

BDM

Connector

Centronic Connector

30 Ways connector

24 Ways Flex

connector

Helios C

Digital

ASIC

Flash

2x1Mx16

SDRAM

1x4Mx16

ROM_Addr[1:21]

ROM_CONTROL[0:3]

SDRAM_Addr[0:13]

SDRAM_CONTROL[0:8]

15.975MHz

Crystal

BDM Interface Signals

USB Interface

IEEE 1284 Interface

Top Door

Sensor

USB

Connector

Power

Connector

(B)

(C)

(B) To Line Feed Motor

(A) To Service Station Motor & Fan

+32V Input Supply

24 Ways Flex

connected to

Carriage Board

+18V/+32V

from Power

Supply Module

To Personal Computer

USB/Centronic Connector

Power

Magic

Cancel

Ink

Key Panel

Carriage

Motor

Line Feed

Motor

Service

Station

Output Ramp

Motor

Oop

Sensor

Dudley III ASIC Interface Signals

Trident+ ASIC Interface Signals

Line Feed

Board

To Power

Supply Module

- Power Switch

Status Sense

PSM_On

PSM_nEnable

(1)

(2)

(3)

Power ON/OFF Signal Flow

(1) User press Power Button on Key Panel

(2) Power Supply Module (PSM) activate "PSM_nEnable"

(3) Escher Logic Board activate/deactivate

"PSM_On" to turn ON/OFF PSM.

(LEFT HAND SIDE)

(RIGHT HAND SIDE)

SYSTEM LEVEL BLOCK DIAGRAM (ELECTRICAL)

LOGIC BOARD SIGNAL FLOW

Lee Chin Kang

29 September 1999

RevA

PSM_nEnable

Escher Logic Board

GPIO Assignment

KP_Cancel Button

USB_Enable

HumidFast

BackDoorSensor

PwrLED

MagicLED

InkLED

KP_MagicButton

PwrButton

TopDoorSensor

PaperSensor

RampMotorEnable

IndexMaker

Mechless

PwrOn

Back Door

Sensor